docs: Add Unraid migration guidance for mergerfs

- Add a top-level Migration page covering both migration directions.
- Explain filesystem reuse, parity constraints, partition requirements,
  and unlocking encrypted Unraid disks.
- Describe intact ZFS pool imports and subdirectory branch reuse,
  distinguishing them from cases requiring a data copy.
- Add navigation and link the guide from the Unraid comparison.

.cirrus.yml

@@ -1,512 +0,0 @@
-freebsd_task:
-  name: "freebsd:11.4"
-  freebsd_instance:
-    image_family: freebsd-11-4
-  env:
-    ASSUME_ALWAYS_YES: yes
-  script:
-    - tools/install-build-pkgs
-    - gmake -j4
-
-freebsd_task:
-  name: "freebsd:12.1"
-  freebsd_instance:
-    image_family: freebsd-12-1
-  env:
-    ASSUME_ALWAYS_YES: yes
-  script:
-    - tools/install-build-pkgs
-    - gmake -j4
-
-freebsd_task:
-  name: "freebsd:12.2"
-  freebsd_instance:
-    image_family: freebsd-12-2
-  env:
-    ASSUME_ALWAYS_YES: yes
-  script:
-    - tools/install-build-pkgs
-    - gmake -j4
-
-freebsd_task:
-  name: "freebsd:13.0"
-  freebsd_instance:
-    image_family: freebsd-13-0
-  env:
-    ASSUME_ALWAYS_YES: yes
-  script:
-    - tools/install-build-pkgs
-    - gmake -j4
-
-
-#macos_task:
-#  osx_instance:
-#    image: catalina-base
-#  script:
-#    - tools/install-build-pkgs
-#    - gmake -j4
-
-linux_task:
-  name: "alpine:3.11"
-  container:
-    image: alpine:3.11
-    cpu: 4
-    memory: 4G
-  timeout_in: 15m
-  script:
-    - tools/install-build-pkgs
-    - make STATIC=1 LTO=1
-
-linux_task:
-  name: "alpine:3.12"
-  container:
-    image: alpine:3.12
-    cpu: 4
-    memory: 4G
-  timeout_in: 15m
-  script:
-    - tools/install-build-pkgs
-    - make STATIC=1 LTO=1
-
-linux_task:
-  name: "alpine:3.13"
-  container:
-    image: alpine:3.13
-    cpu: 4
-    memory: 4G
-  timeout_in: 15m
-  script:
-    - tools/install-build-pkgs
-    - make STATIC=1 LTO=1
-
-linux_task:
-  name: "alpine:3.14"
-  container:
-    image: alpine:3.14
-    cpu: 4
-    memory: 4G
-  timeout_in: 15m
-  script:
-    - tools/install-build-pkgs
-    - make STATIC=1 LTO=1
-
-linux_task:
-  name: "alpine:3.15"
-  container:
-    image: alpine:3.15
-    cpu: 4
-    memory: 4G
-  timeout_in: 15m
-  script:
-    - tools/install-build-pkgs
-    - make STATIC=1 LTO=1
-
-linux_task:
-  name: "alpine:3.16"
-  container:
-    image: alpine:3.16
-    cpu: 4
-    memory: 4G
-  timeout_in: 15m
-  script:
-    - tools/install-build-pkgs
-    - make STATIC=1 LTO=1
-
-linux_task:
-  name: "alpine:3.17"
-  container:
-    image: alpine:3.17
-    cpu: 4
-    memory: 4G
-  timeout_in: 15m
-  script:
-    - tools/install-build-pkgs
-    - make STATIC=1 LTO=1
-
-linux_task:
-  name: "alpine:latest"
-  container:
-    image: alpine:latest
-    cpu: 4
-    memory: 4G
-  timeout_in: 15m
-  script:
-    - tools/install-build-pkgs
-    - make STATIC=1 LTO=1
-
-linux_task:
-  name: "alpine-arm:latest"
-  arm_container:
-    image: alpine:latest
-    cpu: 4
-    memory: 4G
-  timeout_in: 15m
-  script:
-    - tools/install-build-pkgs
-    - make STATIC=1 LTO=1
-
-linux_task:
-  name: "centos:7"
-  container:
-    image: centos:7
-    cpu: 4
-    memory: 4G
-  timeout_in: 15m
-  script:
-    - tools/install-build-pkgs
-    - make
-    - make rpm
-
-linux_task:
-  name: "rocky:8"
-  container:
-    image: rocky:8
-    cpu: 4
-    memory: 4G
-  timeout_in: 15m
-  script:
-    - tools/install-build-pkgs
-    - make
-    - make rpm
-
-linux_task:
-  name: "fedora:30"
-  container:
-    image: fedora:30
-    cpu: 4
-    memory: 4G
-  timeout_in: 15m
-  script:
-    - tools/install-build-pkgs
-    - make
-    - make rpm
-
-linux_task:
-  name: "fedora:31"
-  container:
-    image: fedora:31
-    cpu: 4
-    memory: 4G
-  timeout_in: 15m
-  script:
-    - tools/install-build-pkgs
-    - make
-    - make rpm
-
-linux_task:
-  name: "fedora:32"
-  container:
-    image: fedora:32
-    cpu: 4
-    memory: 4G
-  timeout_in: 15m
-  script:
-    - tools/install-build-pkgs
-    - make
-    - make rpm
-
-linux_task:
-  name: "fedora:33"
-  container:
-    image: fedora:33
-    cpu: 4
-    memory: 4G
-  timeout_in: 15m
-  script:
-    - tools/install-build-pkgs
-    - make
-    - make rpm
-
-linux_task:
-  name: "fedora:34"
-  container:
-    image: fedora:34
-    cpu: 4
-    memory: 4G
-  timeout_in: 15m
-  script:
-    - tools/install-build-pkgs
-    - make
-    - make rpm
-
-linux_task:
-  name: "fedora:35"
-  container:
-    image: fedora:35
-    cpu: 4
-    memory: 4G
-  timeout_in: 15m
-  script:
-    - tools/install-build-pkgs
-    - make
-    - make rpm
-
-linux_task:
-  name: "fedora:36"
-  container:
-    image: fedora:36
-    cpu: 4
-    memory: 4G
-  timeout_in: 15m
-  script:
-    - tools/install-build-pkgs
-    - make
-    - make rpm
-
-linux_task:
-  name: "fedora:37"
-  container:
-    image: fedora:37
-    cpu: 4
-    memory: 4G
-  timeout_in: 15m
-  script:
-    - tools/install-build-pkgs
-    - make
-    - make rpm
-
-linux_task:
-  name: "fedora:38"
-  container:
-    image: fedora:38
-    cpu: 4
-    memory: 4G
-  timeout_in: 15m
-  script:
-    - tools/install-build-pkgs
-    - make
-    - make rpm
-
-linux_task:
-  name: "fedora:latest"
-  container:
-    image: fedora:latest
-    cpu: 4
-    memory: 4G
-  timeout_in: 15m
-  script:
-    - tools/install-build-pkgs
-    - make
-    - make rpm
-
-linux_task:
-  name: "fedora-arm:latest"
-  arm_container:
-    image: fedora:latest
-    cpu: 4
-    memory: 4G
-  timeout_in: 15m
-  script:
-    - tools/install-build-pkgs
-    - make
-    - make rpm
-
-linux_task:
-  name: "ubuntu:14.04"
-  container:
-    image: ubuntu:14.04
-    cpu: 4
-    memory: 4G
-  timeout_in: 15m
-  script:
-    - tools/install-build-pkgs
-    - git fetch
-    - make deb
-    - apt-get -y install fuse
-    - dpkg -i ../*.deb
-    - mergerfs -v || true
-
-linux_task:
-  name: "ubuntu:16.04"
-  container:
-    image: ubuntu:16.04
-    cpu: 4
-    memory: 4G
-  timeout_in: 15m
-  script:
-    - tools/install-build-pkgs
-    - git fetch
-    - make deb
-    - apt-get -y install fuse
-    - dpkg -i ../*.deb
-    - mergerfs -v || true
-
-linux_task:
-  name: "ubuntu:18.04"
-  container:
-    image: ubuntu:18.04
-    cpu: 4
-    memory: 4G
-  timeout_in: 15m
-  script:
-    - tools/install-build-pkgs
-    - git fetch
-    - make deb
-    - apt-get -y install fuse
-    - dpkg -i ../*.deb
-    - mergerfs -v || true
-
-linux_task:
-  name: "ubuntu:20.04"
-  container:
-    image: ubuntu:20.04
-    cpu: 4
-    memory: 4G
-  timeout_in: 15m
-  script:
-    - tools/install-build-pkgs
-    - git fetch
-    - make deb
-    - apt-get -y install fuse
-    - dpkg -i ../*.deb
-    - mergerfs -v || true
-
-linux_task:
-  name: "ubuntu:22.04"
-  container:
-    image: ubuntu:22.04
-    cpu: 4
-    memory: 4G
-  timeout_in: 15m
-  script:
-    - tools/install-build-pkgs
-    - git fetch
-    - make deb
-    - apt-get -y install fuse
-    - dpkg -i ../*.deb
-    - mergerfs -v || true
-
-linux_task:
-  name: "ubuntu:latest"
-  container:
-    image: ubuntu:latest
-    cpu: 4
-    memory: 4G
-  timeout_in: 15m
-  script:
-    - tools/install-build-pkgs
-    - git fetch
-    - make deb
-    - apt-get -y install fuse
-    - dpkg -i ../*.deb
-    - mergerfs -v || true
-
-linux_task:
-  name: "ubuntu-arm:latest"
-  arm_container:
-    image: ubuntu:latest
-    cpu: 4
-    memory: 4G
-  timeout_in: 15m
-  script:
-    - tools/install-build-pkgs
-    - git fetch
-    - make deb
-    - apt-get -y install fuse
-    - dpkg -i ../*.deb
-    - mergerfs -v || true
-
-linux_task:
-  name: "debian:7"
-  container:
-    image: debian:8
-    cpu: 4
-    memory: 4G
-  timeout_in: 15m
-  script:
-    - tools/install-build-pkgs
-    - git fetch
-    - make deb
-    - apt-get -y install fuse
-    - dpkg -i ../*.deb
-    - mergerfs -v || true
-
-linux_task:
-  name: "debian:8"
-  container:
-    image: debian:8
-    cpu: 4
-    memory: 4G
-  timeout_in: 15m
-  script:
-    - tools/install-build-pkgs
-    - git fetch
-    - make deb
-    - apt-get -y install fuse
-    - dpkg -i ../*.deb
-    - mergerfs -v || true
-
-linux_task:
-  name: "debian:9"
-  container:
-    image: debian:9
-    cpu: 4
-    memory: 4G
-  timeout_in: 15m
-  script:
-    - tools/install-build-pkgs
-    - git fetch
-    - make deb
-    - apt-get -y install fuse
-    - dpkg -i ../*.deb
-    - mergerfs -v || true
-
-linux_task:
-  name: "debian:10"
-  container:
-    image: debian:10
-    cpu: 4
-    memory: 4G
-  timeout_in: 15m
-  script:
-    - tools/install-build-pkgs
-    - git fetch
-    - make deb
-    - apt-get -y install fuse
-    - dpkg -i ../*.deb
-    - mergerfs -v || true
-
-linux_task:
-  name: "debian:11"
-  container:
-    image: debian:11
-    cpu: 4
-    memory: 4G
-  timeout_in: 15m
-  script:
-    - tools/install-build-pkgs
-    - git fetch
-    - make deb
-    - apt-get -y install fuse
-    - dpkg -i ../*.deb
-    - mergerfs -v || true
-
-linux_task:
-  name: "debian:latest"
-  container:
-    image: debian:latest
-    cpu: 4
-    memory: 4G
-  timeout_in: 15m
-  script:
-    - tools/install-build-pkgs
-    - git fetch
-    - make deb
-    - apt-get -y install fuse
-    - dpkg -i ../*.deb
-    - mergerfs -v || true
-
-linux_task:
-  name: "debian-arm:latest"
-  arm_container:
-    image: debian:latest
-    cpu: 4
-    memory: 4G
-  timeout_in: 15m
-  script:
-    - tools/install-build-pkgs
-    - git fetch
-    - make deb
-    - apt-get -y install fuse
-    - dpkg -i ../*.deb
-    - mergerfs -v || true

.github/FUNDING.yml

@@ -1,7 +1,2 @@
-# These are supported funding model platforms
-
 github: [trapexit]
-patreon: trapexit
-custom: ['https://paypal.me/trapexit','https://buymeacoff.ee/trapexit']
-ko_fi: trapexit
-open_collective: trapexit
+custom: ['https://github.com/trapexit/support']

.github/ISSUE_TEMPLATE/bug_report.md

@@ -7,22 +7,31 @@ assignees: ''
 
 ---
 
+See also https://trapexit.github.io/mergerfs/latest/support
+
 **Describe the bug**
 
 A clear and concise description of the unexpected behavior.
 
-**Please be sure to use latest release of mergerfs to ensure the issue still exists. Not your distro's latest but the latest official release.**
+**Please be sure to use latest release of mergerfs to ensure the issue
+still exists. Not your distro's latest but the latest official
+release. Support will NOT be provided for old versions.**
 
-The master branch is **not** to be considered production ready. Feel free to file bug reports but do so indicating clearly that you are testing unreleased code.
+The `master` branch is **not** to be considered production ready. Feel
+free to file bug reports but do so indicating clearly that you are
+testing unreleased code.
 
 
 **To Reproduce**
 
-Steps to reproduce the behavior. List **all** steps to reproduce. **All** settings.
+Provide steps to reproduce the behavior. List **all** steps to
+reproduce. **All** settings. The version of all software involved.
 
 Please simplify the reproduction as much as possible.
- - Unless it is dependenat on multiple branches, use a single branch
- - Reproduce with standard tooling if possible (touch,truncate,rm,rmdir,ln,etc.) Having to install 3rd party software will make debugging more difficult.
+ * Unless it is dependenat on multiple branches, use a single branch
+ * Reproduce with standard tooling if possible
+   (touch,truncate,rm,rmdir,ln,etc.) Having to install 3rd party
+   software will make debugging more difficult.
 
 
 **Expected behavior**
@@ -30,19 +39,38 @@ Please simplify the reproduction as much as possible.
 A clear and concise description of the expected behavior.
 
 
+**Workarounds already tested**
+
+Please list all workarounds attempted and why they were ruled out as
+options.
+
+
 **System information:**
 
- - OS, kernel version: `uname -a`
- - mergerfs version: `mergerfs -V`
- - mergerfs settings
- - List of drives, filesystems, & sizes:
-   - `df -h`
-   - `lsblk -f`
- - A strace of the application having a problem:
-   - `strace -fvTtt -s 256 -o /tmp/app.strace.txt <cmd>`
-   - `strace -fvTtt -s 256 -o /tmp/app.strace.txt -p <appPID>`
- - strace of mergerfs while app tried to do it's thing:
-   - `strace -fvTtt -s 256 -p <mergerfsPID> -o /tmp/mergerfs.strace.txt`
+ * Attach output from
+   [mergerfs.collect-info](https://trapexit.github.io/mergerfs/latest/tooling/#mergerfscollect-info)
+   tool.
+ * Alternatively:
+   * OS: `lsb_release -a`
+   * kernel version: `uname -a`
+   * mergerfs version: `mergerfs --version`
+   * mergerfs settings / arguments: from fstab, systemd unit, command
+     line, OMV plugin, etc.
+   * List of drives, filesystems, & sizes:
+     * `df -h`
+     * `lsblk -o NAME,FSTYPE,FSSIZE,SIZE,MOUNTPOINTS,RM,RO,ROTA`
+   * All information about the relevant paths and files: permissions,
+     ownership, etc.
+   * All information about the application making the requests:
+     version, uid/gid
+ * Is mergerfs running within a container or used with container
+   technologies?
+ * Are the client apps using mergerfs running in a container?
+ * A strace of the application having a problem:
+   * `strace -fvTtt -s 256 -o /tmp/app.strace.txt <cmd>`
+   * `strace -fvTtt -s 256 -o /tmp/app.strace.txt -p <appPID>`
+ * strace of mergerfs while app tried to do it's thing:
+   * `strace -fvTtt -s 256 -p <mergerfsPID> -o /tmp/mergerfs.strace.txt`
 
 **Additional context**
 

.github/workflows/codeql.yml

@@ -1,42 +0,0 @@
-name: "CodeQL"
-
-on:
-  push:
-    branches: [ "master" ]
-  pull_request:
-    branches: [ "master" ]
-  schedule:
-    - cron: "7 3 * * 6"
-
-jobs:
-  analyze:
-    name: Analyze
-    runs-on: ubuntu-latest
-    permissions:
-      actions: read
-      contents: read
-      security-events: write
-
-    strategy:
-      fail-fast: false
-      matrix:
-        language: [ python, cpp ]
-
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v3
-
-      - name: Initialize CodeQL
-        uses: github/codeql-action/init@v2
-        with:
-          languages: ${{ matrix.language }}
-          queries: +security-and-quality
-
-      - name: Autobuild
-        uses: github/codeql-action/autobuild@v2
-        if: ${{ matrix.language == 'python' || matrix.language == 'cpp' }}
-
-      - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@v2
-        with:
-          category: "/language:${{ matrix.language }}"

.gitignore

@@ -14,12 +14,20 @@
 
 # build artifacts
 mergerfs
-obj/
+build/
 src/version.hpp
+VERSION
 
 # Debian files
 debian/files
 debian/changelog
+debian/debhelper-build-stamp
+debian/mergerfs.debhelper.log
+debian/mergerfs.substvars
 
 # RPM files
 rpmbuild/
+
+# mkdocs files
+mkdocs/venv
+__pycache__/

DEPENDENCIES

@@ -3,9 +3,15 @@
 ### included in repo
 
 * libfuse: https://github.com/libfuse/libfuse (heavily modified fork of v2.x)
-* wyhash: https://github.com/wangyi-fudan/wyhash
-* ghc::filesystem: https://github.com/gulrak/filesystem
-* nonstd::optional: https://github.com/martinmoene/optional-lite
+* rapidhash: https://github.com/Nicoshev/rapidhash
 * fmt: https://github.com/fmtlib/fmt
 * concurrentqueue: https://github.com/cameron314/concurrentqueue
 * scope_guard: https://github.com/Neargye/scope_guard
+* subprocess: https://github.com/arun11299/cpp-subprocess
+* CLI11: https://github.com/CLIUtils/CLI11
+* string-lite: https://github.com/martinmoene/string-lite
+* boost
+  * download boost
+  * ./bootstrap.sh
+  * ./b2 tools/bcp
+  * ./dist/bin/bcp unordered/concurrent_flat_map.hpp <target_dir>

LICENSE

@@ -1,7 +1,7 @@
 /*
   ISC License
 
-  Copyright (c) 2023, Antonio SJ Musumeci <trapexit@spawn.link>
+  Copyright (c) 2026, Antonio SJ Musumeci <trapexit@spawn.link>
 
   Permission to use, copy, modify, and/or distribute this software for any
   purpose with or without fee is hereby granted, provided that the above

Makefile

@@ -1,4 +1,4 @@
-#  Copyright (c) 2016, Antonio SJ Musumeci <trapexit@spawn.link>
+#  Copyright (c) 2025, Antonio SJ Musumeci <trapexit@spawn.link>
 #
 #  Permission to use, copy, modify, and/or distribute this software for any
 #  purpose with or without fee is hereby granted, provided that the above
@@ -12,182 +12,279 @@
 #  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 #  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
-GIT 	  = git
-TAR 	  = tar
-MKDIR     = mkdir
-TOUCH 	  = touch
-CP        = cp
-RM 	  = rm
-LN        = ln
-FIND 	  = find
-INSTALL   = install
-MKTEMP    = mktemp
-STRIP     = strip
-PANDOC    = pandoc
-SED       = sed
-RPMBUILD  = rpmbuild
-GIT2DEBCL = ./tools/git2debcl
-PKGCONFIG = pkg-config
+$(info mergerfs MAKEFLAGS: $(MAKEFLAGS))
 
-GIT_REPO = 0
+ifeq ($(shell id -u),0)
+FAKEROOT ?=
+endif
+
+CP        ?= cp
+FAKEROOT  ?= fakeroot
+FIND 	  ?= find
+GIT 	  ?= git
+GIT2DEBCL ?= buildtools/git2debcl
+INSTALL   ?= install
+LN        ?= ln
+MKDIR     ?= mkdir
+MKTEMP    ?= mktemp
+MV        ?= mv
+RM 	  ?= rm
+RPMBUILD  ?= rpmbuild
+RPMBUILD_FLAGS ?=
+SED       ?= sed
+STRIP     ?= strip
+TAR 	  ?= tar
+TOUCH 	  ?= touch
+
+BUILDDIR := build
+GITHUB_REPO ?= "https://github.com/trapexit/mergerfs"
+
+DEFAULT_TARGET := debian:13.amd64
+
+ifndef GIT_REPO
 ifneq ($(shell $(GIT) --version 2> /dev/null),)
 ifeq  ($(shell test -e .git; echo $$?),0)
 GIT_REPO = 1
 endif
 endif
-
-USE_XATTR = 1
-UGID_USE_RWLOCK = 0
-
-ifeq ($(DEBUG),1)
-OPT_FLAGS := -O0 -g -fsanitize=undefined
-else
-OPT_FLAGS := -O2 -DNDEBUG
 endif
 
-ifeq ($(STATIC),1)
+USE_XATTR ?= 1
+
+ifdef SANITIZE
+ifeq ($(SANITIZE),1)
+  override SANITIZE := -fsanitize=address,undefined,leak
+else ifeq ($(filter -fsanitize=%,$(SANITIZE)),)
+  override SANITIZE := -fsanitize=$(SANITIZE)
+endif
+endif
+
+COMMON_OPT_FLAGS += \
+    -fstack-protector-strong \
+    -Wextra \
+    -Wno-unused-parameter
+
+DEBUG_OPT_FLAGS += \
+    -O0 \
+    -g3 \
+    -fno-omit-frame-pointer \
+    $(SANITIZE)
+
+ifdef RELEASE
+OPT_FLAGS := -O3 $(COMMON_OPT_FLAGS)
+else
+OPT_FLAGS ?= $(DEBUG_OPT_FLAGS) $(COMMON_OPT_FLAGS)
+endif
+
+ifdef STATIC
 STATIC_FLAGS := -static
 else
 STATIC_FLAGS :=
 endif
 
-ifeq ($(LTO),1)
+ifdef LTO
 LTO_FLAGS := -flto
 else
 LTO_FLAGS :=
 endif
 
-SRC	    = $(wildcard src/*.cpp)
-OBJS        = $(SRC:src/%.cpp=build/.src/%.o)
-DEPS        = $(SRC:src/%.cpp=build/.src/%.d)
+SRC  := $(wildcard src/*.cpp)
+OBJS := $(SRC:src/%.cpp=build/.objs/%.cpp.o)
+DEPS := $(SRC:src/%.cpp=build/.objs/%.cpp.d)
 
-TESTS       = $(wildcard tests/*.cpp)
-TESTS_OBJS  = $(filter-out build/.src/mergerfs.o,$(OBJS))
-TESTS_OBJS += $(TESTS:tests/%.cpp=build/.tests/%.o)
-TESTS_DEPS  = $(TESTS:tests/%.cpp=build/.tests/%.d)
+TESTS      := $(wildcard tests/*.cpp)
+TESTS_OBJS := $(filter-out build/.objs/mergerfs.cpp.o,$(OBJS))
+TESTS_OBJS += $(TESTS:tests/%.cpp=build/.test_objs/%.cpp.o)
+TESTS_DEPS := $(TESTS:tests/%.cpp=build/.test_objs/%.cpp.d)
 TESTS_DEPS += $(DEPS)
 
-MANPAGE     = mergerfs.1
-CXXFLAGS    ?= ${OPT_FLAGS}
-CXXFLAGS    := \
-              ${CXXFLAGS} \
-              -std=c++11 \
-              $(STATIC_FLAGS) \
-              $(LTO_FLAGS) \
-              -Wall \
-              -Wno-unused-result \
-              -MMD
-FUSE_FLAGS = \
-              -Ilibfuse/include \
-              -D_FILE_OFFSET_BITS=64
-MFS_FLAGS  = \
-	      -DUSE_XATTR=$(USE_XATTR) \
-	      -DUGID_USE_RWLOCK=$(UGID_USE_RWLOCK)
-TESTS_FLAGS = \
-              -Isrc \
-              -DTESTS
+MANPAGE := mergerfs.1
+CPPFLAGS ?=
+override CPPFLAGS += \
+	-D_FILE_OFFSET_BITS=64 \
+	-DBOOST_UNORDERED_DISABLE_PARALLEL_ALGORITHMS
+CFLAGS ?= \
+	$(OPT_FLAGS) \
+	-Wall \
+	-Wno-unused-result \
+	-pipe
+override CFLAGS += \
+	-MMD \
+	-MP
+CXXFLAGS ?= \
+	$(OPT_FLAGS) \
+	$(STATIC_FLAGS) \
+	$(LTO_FLAGS) \
+	-Wall \
+	-Wpessimizing-move \
+	-Werror=pessimizing-move \
+	-Wredundant-move \
+	-Werror=redundant-move \
+	-Wno-unused-result \
+	-pipe
+override CXXFLAGS += \
+	-std=c++20 \
+	-MMD \
+	-MP
+override INC_FLAGS := \
+	-Isrc \
+	-Ivendored \
+	-Ivendored/libfuse/include
+override MFS_FLAGS  := \
+	-DUSE_XATTR=$(USE_XATTR)
+override TESTS_FLAGS := \
+	-Isrc \
+	-Ivendored \
+	-Ivendored/acutest \
+	-DTESTS
 
-LDFLAGS := \
-    ${LDFLAGS} \
-    -pthread \
-    -lrt
+LIBFUSE := vendored/libfuse/$(BUILDDIR)/libfuse.a
+LDFLAGS ?=
+LDLIBS := \
+	-lrt \
+	-pthread
+override LDLIBS += \
+	$(LIBFUSE)
+ifeq ($(CXX),g++)
+    GCC_VERSION := $(shell $(CXX) -dumpversion | cut -f1 -d.)
+    ifeq ($(shell test $(GCC_VERSION) -lt 9; echo $$?),0)
+        override LDLIBS += -lstdc++fs
+    endif
+endif
 
-DESTDIR       =
-PREFIX        = /usr/local
-EXEC_PREFIX   = $(PREFIX)
-DATAROOTDIR   = $(PREFIX)/share
-DATADIR       = $(DATAROOTDIR)
-BINDIR        = $(EXEC_PREFIX)/bin
-SBINDIR       = $(EXEC_PREFIX)/sbin
-MANDIR        = $(DATAROOTDIR)/man
-MAN1DIR       = $(MANDIR)/man1
+# https://www.gnu.org/prep/standards/html_node/Directory-Variables.html
+DESTDIR       ?=
+PREFIX        ?= /usr/local
+EXEC_PREFIX   ?= $(PREFIX)
+DATAROOTDIR   ?= $(PREFIX)/share
+DATADIR       ?= $(DATAROOTDIR)
+BINDIR        ?= $(EXEC_PREFIX)/bin
+SBINDIR       ?= $(EXEC_PREFIX)/sbin
+LIBDIR        ?= $(EXEC_PREFIX)/lib
+MANDIR        ?= $(DATAROOTDIR)/man
+MAN1DIR       ?= $(MANDIR)/man1
+
+INSTALLBINDIR  ?= $(DESTDIR)$(BINDIR)
+INSTALLSBINDIR ?= $(DESTDIR)$(SBINDIR)
+INSTALLLIBDIR  ?= $(DESTDIR)$(LIBDIR)/mergerfs
+INSTALLMAN1DIR ?= $(DESTDIR)$(MAN1DIR)
 
-INSTALLBINDIR  = $(DESTDIR)$(BINDIR)
-INSTALLSBINDIR = $(DESTDIR)$(SBINDIR)
-INSTALLMAN1DIR = $(DESTDIR)$(MAN1DIR)
 
 .PHONY: all
-all: mergerfs
+all: libfuse $(BUILDDIR)/mergerfs $(BUILDDIR)/fsck.mergerfs $(BUILDDIR)/mergerfs.collect-info
 
 .PHONY: help
 help:
-	@echo "usage: make\n"
-	@echo "make USE_XATTR=0      - build program without xattrs functionality"
-	@echo "make STATIC=1         - build static binary"
-	@echo "make LTO=1            - build with link time optimization"
+	@echo "usage: make ARG\n"
+	@echo "USE_XATTR=0     - build program without xattrs functionality"
+	@echo "STATIC=1        - build static binary"
+	@echo "LTO=1           - build with link time optimization"
+	@echo "SANITIZE=1      - build with sanitizers (address,undefined,leak)"
+	@echo "SANITIZE=list   - build with custom sanitizers (comma separated)"
+	@echo "CLEANUP=1       - cleanup images between release build process"
+	@echo "PKGDIR=/dir/    - location for release build pkgs"
+	@echo "GITREF=gitref   - gitref to use for release builds"
 
-objects: version build/stamp
-	$(MAKE) $(OBJS)
 
-tests-objects:
-	$(MAKE) $(TESTS_OBJS)
+$(BUILDDIR)/mergerfs: $(LIBFUSE) src/version.hpp $(OBJS)
+	$(CXX) $(CXXFLAGS) $(INC_FLAGS) $(MFS_FLAGS) $(CPPFLAGS) $(OBJS) -o $@ $(LDFLAGS) $(LDLIBS)
 
-build/mergerfs: libfuse objects
-	$(CXX) $(CXXFLAGS) $(FUSE_FLAGS) $(MFS_FLAGS) $(CPPFLAGS) $(OBJS) -o $@ libfuse/build/libfuse.a $(LDFLAGS)
+$(BUILDDIR)/fsck.mergerfs: $(BUILDDIR)/mergerfs
+	$(LN) -sf "mergerfs" $@
 
-build/tests: build/mergerfs tests-objects
-	$(CXX) $(CXXFLAGS) $(TESTS_FLAGS) $(FUSE_FLAGS) $(MFS_FLAGS) $(CPPFLAGS) $(TESTS_OBJS) -o $@ libfuse/build/libfuse.a $(LDFLAGS)
+$(BUILDDIR)/mergerfs.collect-info: $(BUILDDIR)/mergerfs
+	$(LN) -sf "mergerfs" $@
 
-mergerfs: build/mergerfs
+$(BUILDDIR)/tests: $(BUILDDIR)/mergerfs $(TESTS_OBJS)
+	$(CXX) $(CXXFLAGS) $(TESTS_FLAGS) $(INC_FLAGS) $(MFS_FLAGS) $(CPPFLAGS) $(TESTS_OBJS) -o $@ $(LDFLAGS) $(LDLIBS)
 
-tests: build/tests
+.PHONY: libfuse
+libfuse: $(LIBFUSE)
+	$(MAKE) -C vendored/libfuse
 
+$(LIBFUSE):
+	$(MAKE) -C vendored/libfuse $(BUILDDIR)/libfuse.a RELEASE=$(RELEASE)
+
+tests: $(BUILDDIR)/tests
+
+.PHONY:
 changelog:
-ifeq ($(GIT_REPO),1)
+ifdef GIT_REPO
 	$(GIT2DEBCL) --name mergerfs > ChangeLog
 else
 	@echo "WARNING: need git repo to generate ChangeLog"
 endif
 
 .PHONY: version
-version:
-	tools/update-version
+version: src/version.hpp
 
-build/stamp:
-	$(MKDIR) -p build/.src build/.tests
+src/version.hpp:
+	./buildtools/update-version
+
+$(BUILDDIR)/stamp:
+	$(MKDIR) -p $(BUILDDIR)/.objs
+	$(MKDIR) -p $(BUILDDIR)/.test_objs
 	$(TOUCH) $@
 
-build/.src/%.o: src/%.cpp
-	$(CXX) $(CXXFLAGS) $(FUSE_FLAGS) $(MFS_FLAGS) $(CPPFLAGS) -c $< -o $@
+$(BUILDDIR)/.objs/%.cpp.o: src/%.cpp $(BUILDDIR)/stamp
+	$(CXX) $(CXXFLAGS) $(INC_FLAGS) $(MFS_FLAGS) $(CPPFLAGS) -c $< -o $@
 
-build/.tests/%.o: tests/%.cpp
-	$(CXX) $(CXXFLAGS) $(TESTS_FLAGS) $(FUSE_FLAGS) $(MFS_FLAGS) $(CPPFLAGS) -c $< -o $@
+$(BUILDDIR)/.test_objs/%.cpp.o: tests/%.cpp | $(BUILDDIR)/stamp
+	$(CXX) $(CXXFLAGS) $(TESTS_FLAGS) $(INC_FLAGS) $(MFS_FLAGS) $(CPPFLAGS) -c $< -o $@
 
+$(BUILDDIR)/preload.so: $(BUILDDIR)/stamp tools/preload.c
+	$(CC) -shared -fPIC $(CFLAGS) -o $@ tools/preload.c
+
+preload: $(BUILDDIR)/preload.so
 
 .PHONY: clean
 clean: rpm-clean
-	$(RM) -rf build
+	$(RM) -rf $(BUILDDIR)
 	$(FIND) . -name "*~" -delete
-	$(MAKE) -C libfuse clean
+	$(MAKE) -C vendored/libfuse clean
 
+.PHONY: distclean
 distclean: clean
-ifeq ($(GIT_REPO),1)
+ifdef GIT_REPO
 	$(GIT) clean -xfd
 endif
 
 .PHONY: install
-install: install-base install-mount-tools install-man
+install: install-base install-mount-tools install-preload install-man
 
-install-base: build/mergerfs
+.PHONY: install-base
+install-base: all
 	$(MKDIR) -p "$(INSTALLBINDIR)"
-	$(INSTALL) -v -m 0755 build/mergerfs "$(INSTALLBINDIR)/mergerfs"
+	$(INSTALL) -v -m 0755 "$(BUILDDIR)/mergerfs" "$(INSTALLBINDIR)/mergerfs"
+	$(LN) -fs "mergerfs" "${INSTALLBINDIR}/fsck.mergerfs"
+	$(LN) -fs "mergerfs" "${INSTALLBINDIR}/mergerfs.collect-info"
 
+.PHONY: install-mount-tools
 install-mount-tools: install-base
 	$(MKDIR) -p "$(INSTALLBINDIR)"
-	$(MAKE) -C libfuse install
+	$(MAKE) -C vendored/libfuse install
 
-install-man: $(MANPAGE)
+.PHONY: install-man
+install-man: man/$(MANPAGE)
 	$(MKDIR) -p "$(INSTALLMAN1DIR)"
 	$(INSTALL) -v -m 0644 "man/$(MANPAGE)" "$(INSTALLMAN1DIR)/$(MANPAGE)"
 
+.PHONY: install-preload
+install-preload: preload
+	$(MKDIR) -p "$(INSTALLLIBDIR)"
+	$(INSTALL) -v -m 444 "$(BUILDDIR)/preload.so" "$(INSTALLLIBDIR)/preload.so"
+
+.PHONY: install-strip
 install-strip: install-base
 	$(STRIP) "$(INSTALLBINDIR)/mergerfs"
 
 .PHONY: uninstall
-uninstall: uninstall-base uninstall-mount.mergerfs uninstall-man
+uninstall: uninstall-base uninstall-mount.mergerfs uninstall-preload uninstall-man
 
 uninstall-base:
 	$(RM) -f "$(INSTALLBINDIR)/mergerfs"
+	$(RM) -f "$(INSTALLBINDIR)/fsck.mergerfs"
+	$(RM) -f "$(INSTALLBINDIR)/mergerfs.collect-info"
 
 uninstall-mount.mergerfs:
 	$(RM) -f "$(INSTALLBINDIR)/mount.mergerfs"
@@ -195,17 +292,11 @@ uninstall-mount.mergerfs:
 uninstall-man:
 	$(RM) -f "$(INSTALLMAN1DIR)/$(MANPAGE)"
 
-$(MANPAGE): README.md
-ifneq ($(shell $(PANDOC) --version 2> /dev/null),)
-	$(PANDOC) -s -t man -o "man/$(MANPAGE)" README.md
-else
-	$(warning "pandoc does not appear available: unable to build manpage")
-endif
-
-man: $(MANPAGE)
+uninstall-preload:
+	$(RM) -f "$(INSTALLLIBDIR)/preload.so"
 
 .PHONY: tarball
-tarball: man changelog version
+tarball: changelog version
 	$(eval VERSION := $(shell cat VERSION))
 	$(eval VERSION := $(subst -,_,$(VERSION)))
 	$(eval FILENAME := mergerfs-$(VERSION))
@@ -215,29 +306,38 @@ tarball: man changelog version
 	$(TAR) --exclude=.git -cz -C $(TMPDIR) -f $(FILENAME).tar.gz $(FILENAME)
 	$(RM) -rf $(TMPDIR)
 
+.PHONY: debian-changelog
 debian-changelog:
-ifeq ($(GIT_REPO),1)
+ifdef GIT_REPO
 	$(GIT2DEBCL) --name mergerfs > debian/changelog
 else
-	cp ChangeLog debian/changelog
+	$(CP) -v ChangeLog debian/changelog
+	$(eval DISTRO := $(shell lsb_release -i -s | tr '[:upper:]' '[:lower:]'))
+	$(eval CODENAME := $(shell lsb_release -c -s | tr '[:upper:]' '[:lower:]'))
+	sed -i 's/~unknown-unknown/~$(DISTRO)-$(CODENAME)/g' debian/changelog
+	sed -i 's/ unknown; / $(CODENAME); /g' debian/changelog
 endif
 
+.PHONY: signed-deb
 signed-deb:
 	$(MAKE) distclean
 	$(MAKE) debian-changelog
-	dpkg-source -b .
-	dpkg-buildpackage -nc
+	$(FAKEROOT) dpkg-buildpackage -nc
 
+.PHONY: deb
 deb:
 	$(MAKE) distclean
 	$(MAKE) debian-changelog
-	dpkg-source -b .
-	dpkg-buildpackage -nc -uc -us
+	$(MAKE) version
+	$(FAKEROOT) dpkg-buildpackage -nc -uc -us
+	$(MKDIR) -p ./$(BUILDDIR)/pkgs/
+	$(MV) -v ../mergerfs*deb ./$(BUILDDIR)/pkgs/
 
 .PHONY: rpm-clean
 rpm-clean:
 	$(RM) -rf rpmbuild
 
+.PHONY: rpm
 rpm: tarball
 	$(eval VERSION := $(shell cat VERSION))
 	$(eval VERSION := $(subst -,_,$(VERSION)))
@@ -245,15 +345,65 @@ rpm: tarball
 	$(SED) 's/__VERSION__/$(VERSION)/g' mergerfs.spec > \
 		rpmbuild/SOURCES/mergerfs.spec
 	cp -ar mergerfs-$(VERSION).tar.gz rpmbuild/SOURCES
-	$(RPMBUILD) -ba rpmbuild/SOURCES/mergerfs.spec \
+	$(RPMBUILD) $(RPMBUILD_FLAGS) -ba rpmbuild/SOURCES/mergerfs.spec \
 		--define "_topdir $(CURDIR)/rpmbuild"
 
 .PHONY: install-build-pkgs
 install-build-pkgs:
-	tools/install-build-pkgs
+	./buildtools/install-build-pkgs
+
+.PHONY: install-build-tools
+install-build-tools:
+	./buildtools/install-build-tools
+
+define build_release
+	$(eval GITREF ?= $(shell git describe --exact-match --tags HEAD 2>/dev/null || git symbolic-ref --short HEAD 2>/dev/null || git rev-parse --short HEAD))
+	@echo "GITREF=$(GITREF)"
+	./buildtools/build-release \
+		--target=$(1) \
+		$(if $(CLEANUP),--cleanup) \
+		$(if $(PKGDIR),--pkgdirpath=$(PKGDIR)) \
+		--git-repo=$(if $(REMOTE_REPO),$(GITHUB_REPO),".") \
+		--branch=$(GITREF)
+endef
+
+.PHONY: release release-all
+.PHONY: release-amd64 release-arm64 release-armhf release-riscv64
+.PHONY: release-sample release-static release-tarball release-installer
+release:
+	$(MAKE) RELEASE=1 CPPFLAGS="$(CPPFLAGS) -DNDEBUG" all
+release-all:
+	$(call build_release,"all")
+release-sample:
+	$(if $(TARGET),,$(eval TARGET := $(shell ./buildtools/detect-local-target 2>/dev/null)))
+	$(call build_release,$(if $(TARGET),$(TARGET),$(DEFAULT_TARGET)))
+release-amd64:
+	$(call build_release,"amd64")
+release-arm64:
+	$(call build_release,"arm64")
+release-armhf:
+	$(call build_release,"armhf")
+release-riscv64:
+	$(call build_release,"riscv64")
+release-static:
+	$(call build_release,"static")
+release-tarball:
+	$(call build_release,"tarball")
+release-installer:
+	$(call build_release,"installer")
+
+container:
+	$(eval GITREF ?= $(shell git describe --exact-match --tags HEAD 2>/dev/null || git symbolic-ref --short HEAD 2>/dev/null || git rev-parse --short HEAD))
+	@echo "GITREF=$(GITREF)"
+	./buildtools/build-containerimage "$(GITREF)"
+
+.PHONY: tags
+tags:
+	rm -fv TAGS
+	find . -name "*.c" -print | etags --append -
+	find . -name "*.h" -print | etags --append -
+	find . -name "*.cpp" -print | etags --append -
+	find . -name "*.hpp" -print | etags --append -
 
-.PHONY: libfuse
-libfuse:
-	$(MAKE) DEBUG=$(DEBUG) -C libfuse
 
 -include $(DEPS)

buildtools/build-containerimage

@@ -0,0 +1,16 @@
+#!/bin/sh
+
+GIT_BRANCH="${1:-master}"
+
+set -x
+podman \
+    build \
+    --squash \
+    --no-cache \
+    --force-rm \
+    --build-arg="GIT_REPO=file:///mnt" \
+    --build-arg="BRANCH=${GIT_BRANCH}" \
+    -v "${PWD}":/mnt:ro \
+    -f "buildtools/containerimage/Containerfile" \
+    --tag "ghcr.io/trapexit/mergerfs:${GIT_BRANCH}" \
+    buildtools/

buildtools/build-mergerfs

@@ -0,0 +1,76 @@
+#!/bin/sh
+set -e
+
+if [ -e /tmp/build-env ]; then
+    . /tmp/build-env
+fi
+
+rpmbuild_flags()
+{
+    case "$(command -v "${CXX:-g++}")" in
+        /opt/rh/*)
+            printf '%s' '--undefine _annotated_build'
+            ;;
+    esac
+}
+
+if [ $# -ne 2 ]; then
+    echo "usage: $0 <branch> <git_repo>"
+    echo "argv: $@"
+    echo "argc: $#"
+    exit 1
+fi
+
+GIT_REPO="${1}"
+BRANCH="${2}"
+BUILDDIR="/tmp/build"
+
+echo "Clone source from ${GIT_REPO} to ${BUILDDIR}"
+git \
+    clone \
+    --single-branch \
+    --branch="${BRANCH}" \
+    "${GIT_REPO}" \
+    "${BUILDDIR}"
+
+cd "${BUILDDIR}"
+
+git log HEAD^1..
+
+mkdir "/build"
+if [ -e /usr/bin/apt-get ]; then
+    make deb
+elif [ -e /usr/bin/dnf ]; then
+    make RPMBUILD_FLAGS="$(rpmbuild_flags)" rpm
+elif [ -e /usr/bin/yum ]; then
+    make RPMBUILD_FLAGS="$(rpmbuild_flags)" rpm
+elif [ -e /sbin/apk ]; then
+    echo "NOT YET SUPPORTED"
+    exit 1
+elif [ -e /usr/sbin/pkg ]; then
+    echo "NOT YET SUPPORTED"
+    exit 1
+elif [ -e /usr/bin/pacman ]; then
+    make tarball
+else
+    echo "NOT YET SUPPORTED"
+    exit 1
+fi
+
+echo "Copy packages to host..."
+if [ -e /usr/bin/pacman ]; then
+    find "${BUILDDIR}" \
+         -type f \
+         -name "*.tar.gz" \
+         -exec cp -v {} /build/ \;
+else
+    find "${BUILDDIR}" \
+         -type f \
+         \( -name "*.deb" -or -name "*.rpm" \) \
+         -not -name "*dbgsym*" \
+         -not -name "*sym*" \
+         -not -name "*src.rpm" \
+         -exec cp -v {} /build/ \;
+fi
+
+exit 0

buildtools/build-release

@@ -0,0 +1,178 @@
+#!/usr/bin/env python3
+
+import subprocess
+import sys
+import os
+import argparse
+import time
+
+
+def build(git_repo,
+          branch,
+          containerfile,
+          pkgdirpath):
+    timestamp = time.time_ns()
+    args = ['podman',
+            'build',
+            '--pull=always',
+            '--force-rm']
+    if os.path.exists(git_repo):
+        git_repo = os.path.realpath(git_repo)
+        args += ['-v',f'{git_repo}:/tmp/mergerfs.git:ro:z']
+        args += ['--build-arg=GIT_REPO=file:///tmp/mergerfs.git']
+    else:
+        args += [f'--build-arg=GIT_REPO={git_repo}']
+    os.makedirs(pkgdirpath,exist_ok=True)
+    args += ['-v',f'{os.path.realpath(pkgdirpath)}:/pkgs:ro']
+    args += ['-o',pkgdirpath,
+             '-f',containerfile,
+             f'--build-arg=BRANCH={branch}',
+             f'--build-arg=BUILD_TIMESTAMP={timestamp}',
+             'buildtools/']
+    # TODO: Capture output and write to log
+    print(args)
+    rv = subprocess.run(args)
+    report_filepath = os.path.join(pkgdirpath,"build-report.txt")
+    with open(report_filepath,"a+") as f:
+        build = os.path.basename(containerfile)
+        f.write(build + ": ")
+        f.write(f"branch={branch}; ")
+        f.write(f"timestamp={timestamp}; ")
+        f.write("rv=")
+        if rv.returncode == 0:
+            f.write("success;")
+        else:
+            f.write("fail;")
+        f.write("\n")
+
+
+def setup():
+    # Detect distribution
+    if os.path.exists('/usr/bin/apt-get'):
+        args = ['sudo',
+                'apt-get',
+                'install',
+                '-fy',
+                'qemu-user-static',
+                'qemu-user-binfmt']
+    elif os.path.exists('/usr/bin/pacman'):
+        args = ['sudo',
+                'pacman',
+                '-Sy',
+                '--noconfirm',
+                'qemu-user-static']
+    else:
+        print("Unsupported distribution for setup")
+        sys.exit(1)
+    print(args)
+    subprocess.run(args)
+    setup_binfmt()
+
+
+def setup_binfmt():
+    """Register qemu-user-static binfmt handlers (needed on Arch, etc.)."""
+    binfmt_conf = """\
+:qemu-aarch64:M::\\x7fELF\\x02\\x01\\x01\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x02\\x00\\xb7\\x00:\\xff\\xff\\xff\\xff\\xff\\xff\\xff\\x00\\xff\\xff\\xff\\xff\\xff\\xff\\xff\\xff\\xfe\\xff\\xff\\xff:/usr/bin/qemu-aarch64-static:F
+:qemu-arm:M::\\x7fELF\\x01\\x01\\x01\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x02\\x00\\x28\\x00:\\xff\\xff\\xff\\xff\\xff\\xff\\xff\\x00\\xff\\xff\\xff\\xff\\xff\\xff\\xff\\xff\\xfe\\xff\\xff\\xff:/usr/bin/qemu-arm-static:F
+:qemu-armeb:M::\\x7fELF\\x01\\x02\\x01\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x02\\x00\\x28:\\xff\\xff\\xff\\xff\\xff\\xff\\xff\\x00\\xff\\xff\\xff\\xff\\xff\\xff\\xff\\xff\\xff\\xfe\\xff\\xff:/usr/bin/qemu-armeb-static:F
+:qemu-riscv64:M::\\x7fELF\\x02\\x01\\x01\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x02\\x00\\xf3\\x00:\\xff\\xff\\xff\\xff\\xff\\xff\\xff\\x00\\xff\\xff\\xff\\xff\\xff\\xff\\xff\\xff\\xfe\\xff\\xff\\xff:/usr/bin/qemu-riscv64-static:F
+:qemu-i386:M::\\x7fELF\\x01\\x01\\x01\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x02\\x00\\x03\\x00:\\xff\\xff\\xff\\xff\\xff\\xff\\xff\\x00\\xff\\xff\\xff\\xff\\xff\\xff\\xff\\xff\\xfe\\xff\\xff\\xff:/usr/bin/qemu-i386-static:F
+"""
+    conf_path = '/etc/binfmt.d/qemu-static.conf'
+    print(f"Writing {conf_path}")
+    try:
+        with open(conf_path, 'w') as f:
+            f.write(binfmt_conf)
+    except PermissionError:
+        print(f"Permission denied writing {conf_path}; trying with sudo...")
+        subprocess.run(['sudo', 'tee', conf_path],
+                       input=binfmt_conf.encode(), check=True)
+
+    print("Restarting systemd-binfmt...")
+    subprocess.run(['sudo', 'systemctl', 'restart', 'systemd-binfmt'])
+
+
+def podman_cleanup():
+    args = ['podman',
+            'system',
+            'prune',
+            '-af']
+    print(args)
+    subprocess.run(args)
+
+
+def parse_args():
+    p = argparse.ArgumentParser()
+    p.add_argument('--target',
+                   default='debian:13.amd64')
+    p.add_argument('--pkgdirpath',
+                   default='build/pkgs/')
+    p.add_argument('--branch',
+                   default='master')
+    p.add_argument('--setup',
+                   required=False,
+                   action='store_true')
+    p.add_argument('--cleanup',
+                   required=False,
+                   action='store_true')
+    p.add_argument('--git-repo',
+                   required=False,
+                   type=str)
+
+    return p.parse_args()
+
+
+def should_skip(filename):
+    if filename.endswith('~'):
+        return True
+    return False
+
+
+def main():
+    args = parse_args()
+    print(args)
+
+    if args.setup:
+        setup()
+        sys.exit(0)
+
+    if not args.git_repo:
+        print("error: the following arguments are required: --git-repo")
+        sys.exit(1)
+
+    containerfiles = []
+    basepath = 'buildtools/containerfiles'
+    if os.path.exists(f'{basepath}/{args.target}'):
+        containerfiles.append(f'{basepath}/{args.target}')
+    elif args.target == 'all':
+        for root,dirnames,filenames in os.walk(basepath):
+            filenames.sort()
+            for filename in filenames:
+                if should_skip(filename):
+                    continue
+                containerfile = f'buildtools/containerfiles/{filename}'
+                containerfiles.append(containerfile)
+    else:
+        for root,dirnames,filenames in os.walk(basepath):
+            filenames.sort()
+            for filename in filenames:
+                if args.target not in filename:
+                    continue
+                if should_skip(filename):
+                    continue
+                containerfile = f'buildtools/containerfiles/{filename}'
+                containerfiles.append(containerfile)
+
+    for containerfile in containerfiles:
+        if args.cleanup:
+            podman_cleanup()
+        build(git_repo=args.git_repo,
+              branch=args.branch,
+              containerfile=containerfile,
+              pkgdirpath=args.pkgdirpath)
+
+    sys.exit(0)
+
+
+if __name__ == '__main__':
+    main()

buildtools/containerfiles/debian:11.amd64

@@ -0,0 +1,10 @@
+FROM --platform=amd64 debian:11 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/debian:11.arm64

@@ -0,0 +1,10 @@
+FROM --platform=arm64 debian:11 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/debian:11.armhf

@@ -0,0 +1,10 @@
+FROM --platform=armhf debian:11 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/debian:11.i386

@@ -0,0 +1,10 @@
+FROM --platform=i386 debian:11 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/debian:12.amd64

@@ -0,0 +1,10 @@
+FROM --platform=amd64 debian:12 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/debian:12.arm64

@@ -0,0 +1,10 @@
+FROM --platform=arm64 debian:12 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/debian:12.armhf

@@ -0,0 +1,10 @@
+FROM --platform=armhf debian:12 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/debian:12.i386

@@ -0,0 +1,10 @@
+FROM --platform=i386 debian:12 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/debian:13.amd64

@@ -0,0 +1,10 @@
+FROM --platform=amd64 debian:13 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/debian:13.arm64

@@ -0,0 +1,10 @@
+FROM --platform=arm64 debian:13 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/debian:13.armhf

@@ -0,0 +1,10 @@
+FROM --platform=armhf debian:13 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/debian:13.i386

@@ -0,0 +1,10 @@
+FROM --platform=i386 debian:13 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/debian:13.riscv64

@@ -0,0 +1,10 @@
+FROM --platform=riscv64 debian:13 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/fedora:40.amd64

@@ -0,0 +1,10 @@
+FROM --platform=amd64 fedora:40 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/fedora:40.arm64

@@ -0,0 +1,10 @@
+FROM --platform=arm64 fedora:40 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/fedora:41.amd64

@@ -0,0 +1,10 @@
+FROM --platform=amd64 fedora:41 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/fedora:41.arm64

@@ -0,0 +1,10 @@
+FROM --platform=arm64 fedora:41 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/fedora:42.amd64

@@ -0,0 +1,10 @@
+FROM --platform=amd64 fedora:42 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/fedora:42.arm64

@@ -0,0 +1,10 @@
+FROM --platform=arm64 fedora:42 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/fedora:43.amd64

@@ -0,0 +1,10 @@
+FROM --platform=amd64 fedora:43 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/fedora:43.arm64

@@ -0,0 +1,10 @@
+FROM --platform=arm64 fedora:43 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/fedora:44.amd64

@@ -0,0 +1,10 @@
+FROM --platform=amd64 fedora:44 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/fedora:44.arm64

@@ -0,0 +1,10 @@
+FROM --platform=arm64 fedora:44 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/rockylinux:10.amd64

@@ -0,0 +1,10 @@
+FROM --platform=amd64 quay.io/rockylinux/rockylinux:10 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/rockylinux:10.arm64

@@ -0,0 +1,10 @@
+FROM --platform=arm64 quay.io/rockylinux/rockylinux:10 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/rockylinux:8.amd64

@@ -0,0 +1,10 @@
+FROM --platform=amd64 quay.io/rockylinux/rockylinux:8 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/rockylinux:8.arm64

@@ -0,0 +1,10 @@
+FROM --platform=arm64 quay.io/rockylinux/rockylinux:8 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/rockylinux:9.amd64

@@ -0,0 +1,10 @@
+FROM --platform=amd64 quay.io/rockylinux/rockylinux:9 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/rockylinux:9.arm64

@@ -0,0 +1,10 @@
+FROM --platform=arm64 quay.io/rockylinux/rockylinux:9 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/static.amd64

@@ -0,0 +1,15 @@
+FROM --platform=linux/amd64 alpine:latest as build
+COPY install-build-pkgs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN git clone --single-branch --branch="${BRANCH}" ${GIT_REPO} /tmp/mergerfs 
+WORKDIR /tmp/mergerfs
+RUN make NDEBUG=1 LTO=1 STATIC=1 DESTDIR=/tmp -j$(nproc) install
+RUN mkdir /build
+RUN /tmp/usr/local/bin/mergerfs --version | head -n1 | cut -c 11- | tee /tmp/version
+RUN tar cvfz /build/mergerfs-$(cat /tmp/version)-static-linux_amd64.tar.gz --directory=/tmp usr sbin
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/static.arm64

@@ -0,0 +1,15 @@
+FROM --platform=linux/arm64 alpine:latest as build
+COPY install-build-pkgs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN git clone --single-branch --branch="${BRANCH}" ${GIT_REPO} /tmp/mergerfs 
+WORKDIR /tmp/mergerfs
+RUN make NDEBUG=1 LTO=1 STATIC=1 DESTDIR=/tmp -j$(nproc) install
+RUN mkdir /build
+RUN /tmp/usr/local/bin/mergerfs --version | head -n1 | cut -c 11- | tee /tmp/version
+RUN tar cvfz /build/mergerfs-$(cat /tmp/version)-static-linux_arm64.tar.gz --directory=/tmp usr sbin
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/static.armhf

@@ -0,0 +1,15 @@
+FROM --platform=linux/armhf alpine:latest as build
+COPY install-build-pkgs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN git clone --single-branch --branch="${BRANCH}" ${GIT_REPO} /tmp/mergerfs 
+WORKDIR /tmp/mergerfs
+RUN make NDEBUG=1 LTO=1 STATIC=1 DESTDIR=/tmp -j$(nproc) install
+RUN mkdir /build
+RUN /tmp/usr/local/bin/mergerfs --version | head -n1 | cut -c 11- | tee /tmp/version
+RUN tar cvfz /build/mergerfs-$(cat /tmp/version)-static-linux_armhf.tar.gz --directory=/tmp usr sbin
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/static.i386

@@ -0,0 +1,15 @@
+FROM --platform=linux/i386 alpine:latest as build
+COPY install-build-pkgs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN git clone --single-branch --branch="${BRANCH}" ${GIT_REPO} /tmp/mergerfs 
+WORKDIR /tmp/mergerfs
+RUN make NDEBUG=1 LTO=1 STATIC=1 DESTDIR=/tmp -j$(nproc) install
+RUN mkdir /build
+RUN /tmp/usr/local/bin/mergerfs --version | head -n1 | cut -c 11- | tee /tmp/version
+RUN tar cvfz /build/mergerfs-$(cat /tmp/version)-static-linux_i386.tar.gz --directory=/tmp usr sbin
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/static.installer

@@ -0,0 +1,14 @@
+ARG BUILD_TIMESTAMP=0
+FROM --platform=linux/amd64 ubuntu:latest as build
+COPY install-build-pkgs /tmp/
+RUN /tmp/install-build-pkgs && \
+    DEBIAN_FRONTEND=noninteractive apt-get -qy --no-install-suggests --no-install-recommends install \
+        makeself
+RUN mkdir -p /tmp/mergerfs/
+RUN ls -lhd /pkgs
+RUN cp -v /pkgs/*static*.gz /tmp/mergerfs/
+RUN mkdir -p /build
+RUN makeself /tmp/mergerfs/ /build/mergerfs-installer.run "mergerfs" echo "foo"
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/static.riscv64

@@ -0,0 +1,15 @@
+FROM --platform=linux/riscv64 alpine:latest as build
+COPY install-build-pkgs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN git clone --single-branch --branch="${BRANCH}" ${GIT_REPO} /tmp/mergerfs 
+WORKDIR /tmp/mergerfs
+RUN make NDEBUG=1 LTO=1 STATIC=1 DESTDIR=/tmp -j$(nproc) install
+RUN mkdir /build
+RUN /tmp/usr/local/bin/mergerfs --version | head -n1 | cut -c 11- | tee /tmp/version
+RUN tar cvfz /build/mergerfs-$(cat /tmp/version)-static-linux_riscv64.tar.gz --directory=/tmp usr sbin
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/tarball

@@ -0,0 +1,17 @@
+FROM alpine:latest as tarball
+
+COPY install-build-pkgs /tmp/
+RUN /tmp/install-build-pkgs
+
+ARG BUILD_TIMESTAMP=0
+ARG BRANCH=master
+ARG GIT_REPO
+
+RUN git clone --single-branch "${GIT_REPO}" /tmp/mergerfs --branch="${BRANCH}"
+RUN cd /tmp/mergerfs && make version tarball
+
+RUN mkdir /build
+RUN cp -v /tmp/mergerfs/*.tar.gz /build/
+
+FROM scratch
+COPY --from=tarball /build/ /

buildtools/containerfiles/ubuntu:22.04.amd64

@@ -0,0 +1,10 @@
+FROM --platform=amd64 ubuntu:22.04 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/ubuntu:22.04.arm64

@@ -0,0 +1,10 @@
+FROM --platform=arm64 ubuntu:22.04 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/ubuntu:22.04.armhf

@@ -0,0 +1,10 @@
+FROM --platform=armhf ubuntu:22.04 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/ubuntu:22.04.riscv64

@@ -0,0 +1,10 @@
+FROM --platform=riscv64 ubuntu:22.04 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/ubuntu:24.04.amd64

@@ -0,0 +1,10 @@
+FROM --platform=amd64 ubuntu:24.04 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/ubuntu:24.04.arm64

@@ -0,0 +1,10 @@
+FROM --platform=arm64 ubuntu:24.04 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/ubuntu:24.04.armhf

@@ -0,0 +1,10 @@
+FROM --platform=armhf ubuntu:24.04 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/ubuntu:24.04.riscv64

@@ -0,0 +1,10 @@
+FROM --platform=riscv64 ubuntu:24.04 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/ubuntu:25.04.amd64

@@ -0,0 +1,10 @@
+FROM --platform=amd64 ubuntu:25.04 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/ubuntu:25.04.arm64

@@ -0,0 +1,10 @@
+FROM --platform=arm64 ubuntu:25.04 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/ubuntu:25.04.armhf

@@ -0,0 +1,10 @@
+FROM --platform=armhf ubuntu:25.04 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/ubuntu:25.04.riscv64

@@ -0,0 +1,10 @@
+FROM --platform=riscv64 ubuntu:25.04 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/ubuntu:25.10.amd64

@@ -0,0 +1,10 @@
+FROM --platform=amd64 ubuntu:25.10 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/ubuntu:25.10.arm64

@@ -0,0 +1,10 @@
+FROM --platform=arm64 ubuntu:25.10 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/ubuntu:25.10.armhf

@@ -0,0 +1,10 @@
+FROM --platform=armhf ubuntu:25.10 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/ubuntu:25.10.riscv64

@@ -0,0 +1,10 @@
+FROM --platform=riscv64 ubuntu:25.10 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/ubuntu:26.04.amd64

@@ -0,0 +1,10 @@
+FROM --platform=amd64 ubuntu:26.04 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/ubuntu:26.04.arm64

@@ -0,0 +1,10 @@
+FROM --platform=arm64 ubuntu:26.04 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/ubuntu:26.04.armhf

@@ -0,0 +1,10 @@
+FROM --platform=armhf ubuntu:26.04 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerfiles/ubuntu:26.04.riscv64

@@ -0,0 +1,10 @@
+FROM --platform=riscv64 ubuntu:26.04 as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs $GIT_REPO $BRANCH
+
+FROM scratch
+COPY --from=build /build/ /

buildtools/containerimage/Containerfile

@@ -0,0 +1,19 @@
+FROM --platform=linux/amd64 alpine:latest as build
+
+ARG GIT_REPO
+ARG BRANCH
+
+RUN <<EOF
+    apk add git gcc g++ make linux-headers
+    git clone --single-branch --branch="${BRANCH}" "${GIT_REPO}" /tmp/mergerfs
+    cd /tmp/mergerfs
+    make NDEBUG=1 LTO=1 STATIC=1 DESTDIR=/tmp/install -j$(nproc) install
+    tar cvfz /tmp/mergerfs.tgz --directory=/tmp/install usr sbin
+EOF
+
+FROM --platform=linux/amd64 alpine:latest
+RUN --mount=from=build,source=/tmp/mergerfs.tgz,target=/tmp/mergerfs.tgz <<EOF
+    tar xvf /tmp/mergerfs.tgz -C /
+EOF
+ENTRYPOINT ["/usr/local/bin/mergerfs"]
+CMD ["--help"]

buildtools/detect-local-target

@@ -0,0 +1,119 @@
+#!/bin/bash
+# Detects local OS and maps to containerfiles target
+# Returns target if found in buildtools/containerfiles/, empty string otherwise
+
+set -euo pipefail
+
+CONTAINERFILES_DIR="buildtools/containerfiles"
+
+# Detect system architecture and map to containerfiles format
+detect_arch() {
+    local arch
+    arch=$(uname -m)
+    case "$arch" in
+        x86_64)     echo "amd64" ;;
+        aarch64)    echo "arm64" ;;
+        armv7l)     echo "armhf" ;;
+        i686|i386)  echo "i386" ;;
+        riscv64)    echo "riscv64" ;;
+        *)          echo "" ;;
+    esac
+}
+
+# Detect distro and version from os-release
+detect_distro() {
+    local os_release="${1:-}"
+    if [[ ! -r "$os_release" ]]; then
+        return 1
+    fi
+    
+    # Source the file safely - ID and VERSION_ID are environment variables
+    . "$os_release"
+    
+    local distro="$ID"
+    local version="$VERSION_ID"
+    
+    # Map distro ID to containerfiles naming convention
+    case "$distro" in
+        ubuntu|debian|fedora) ;;
+        rocky|rhel|centos|almalinux) distro="rockylinux" ;;
+        *)
+            # Fallback to ID_LIKE for derivatives
+            if [[ -n "${ID_LIKE:-}" ]]; then
+                case "$ID_LIKE" in
+                    *ubuntu*) distro="ubuntu" ;;
+                    *debian*) distro="debian" ;;
+                    *fedora*) distro="fedora" ;;
+                esac
+            fi
+            ;;
+    esac
+    
+    # Only return if we have valid distro and version
+    if [[ -n "$distro" && -n "$version" ]]; then
+        echo "$distro:$version"
+    else
+        return 1
+    fi
+}
+
+# Try to find a matching containerfile target
+find_containerfile() {
+    local target="$1"
+    local containerfile="${CONTAINERFILES_DIR}/${target}"
+    
+    # Direct match
+    if [[ -d "$containerfile" || -f "$containerfile" ]]; then
+        echo "$target"
+        return 0
+    fi
+    
+    return 1
+}
+
+# Main detection logic
+main() {
+    local arch
+    
+    # Detect architecture
+    arch=$(detect_arch)
+    if [[ -z "$arch" ]]; then
+        echo "WARNING: Could not detect system architecture" >&2
+        exit 1
+    fi
+    
+    # Try to detect distro from multiple locations
+    local distro_ver
+    distro_ver=$(detect_distro "/etc/os-release") || \
+    distro_ver=$(detect_distro "/usr/lib/os-release") || {
+        echo "WARNING: Could not detect distro from os-release" >&2
+        exit 1
+    }
+    
+    # Build target string
+    local target="${distro_ver}.${arch}"
+    
+    # Try to find matching containerfile
+    if find_containerfile "$target"; then
+        exit 0
+    fi
+    
+    # Try with partial version matching (e.g., 25.10 → 25)
+    local distro="${distro_ver%%:*}"
+    local version="${distro_ver##*:}"
+    
+    # Strip last minor version number and try again
+    local short_version="${version%.*}"
+    if [[ -n "$short_version" ]]; then
+        target="${distro}:${short_version}.${arch}"
+        if find_containerfile "$target"; then
+            exit 0
+        fi
+    fi
+    
+    # No match found
+    echo "WARNING: No containerfile found for target: ${distro_ver}.${arch}" >&2
+    exit 1
+}
+
+main "$@"

buildtools/gen-containerfiles

@@ -0,0 +1,27 @@
+#!/bin/sh
+
+input_file="${1}"
+
+while IFS= read -r line || [ -n "$line" ]; do
+    # Skip empty lines
+    if [ -z "$line" ]; then
+        continue
+    fi
+    
+    image=$(echo "$line" | cut -d' ' -f1)
+    platform=$(echo "$line" | cut -d' ' -f2-)
+
+    echo "${image} ${platform}"
+    cat <<EOF > "containerfiles/${image##*/}.${platform}"
+FROM --platform=${platform} ${image} as build
+COPY install-build-pkgs build-mergerfs /tmp/
+RUN /tmp/install-build-pkgs
+ARG BUILD_TIMESTAMP=0
+ARG GIT_REPO
+ARG BRANCH
+RUN /tmp/build-mergerfs \$GIT_REPO \$BRANCH
+
+FROM scratch
+COPY --from=build /build/ /
+EOF
+done < "$input_file"

buildtools/git2debcl

@@ -0,0 +1,202 @@
+#!/bin/sh
+
+# Copyright (c) 2016, Antonio SJ Musumeci <trapexit@spawn.link>
+
+# Permission to use, copy, modify, and/or distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# Default values
+NAME=""
+VERSION="::guess::"
+DISTRO="::guess::"
+CODENAME="::guess::"
+URGENCY="medium"
+
+# Function to display usage
+usage() {
+    cat << EOF
+Usage: $0 --name NAME [OPTIONS]
+
+Generated debian/changelog from git log
+
+Options:
+    --name NAME        Name of package (required)
+    --version VERSION  Place in git history to include upto (default: ::guess::)
+    --distro DISTRO    Distribution name (default: ::guess::)
+    --codename NAME    Distribution codename (default: ::guess::)
+    --urgency URGENCY  Urgency (default: medium)
+    -h, --help         Show this help message
+EOF
+    exit 1
+}
+
+# Parse command line arguments
+while [ $# -gt 0 ]; do
+    case "$1" in
+        --name)
+            NAME="$2"
+            shift 2
+            ;;
+        --version)
+            VERSION="$2"
+            shift 2
+            ;;
+        --distro)
+            DISTRO="$2"
+            shift 2
+            ;;
+        --codename)
+            CODENAME="$2"
+            shift 2
+            ;;
+        --urgency)
+            URGENCY="$2"
+            shift 2
+            ;;
+        -h|--help)
+            usage
+            ;;
+        *)
+            echo "Unknown option: $1" >&2
+            usage
+            ;;
+    esac
+done
+
+# Check required arguments
+if [ -z "$NAME" ]; then
+    echo "Error: --name is required" >&2
+    usage
+fi
+
+# Function to get git tags sorted in reverse order
+git_tags() {
+    git tag -l | sort -rV
+}
+
+# Function to get git log between two tags
+git_log() {
+    local fromtag="$1"
+    local totag="$2"
+    git log --no-merges --oneline "${fromtag}...${totag}" 2>/dev/null
+}
+
+# Function to get author and time for a tag
+git_author_and_time() {
+    local tag="$1"
+    git log -1 --format="-- %an <%ae>  %cD" "$tag"
+}
+
+# Function to get git version
+git_version() {
+    git describe --always --tags --dirty 2>/dev/null || echo "unknown"
+}
+
+# Function to guess distribution
+guess_distro() {
+    if command -v lsb_release >/dev/null 2>&1; then
+        lsb_release -i -s 2>/dev/null | tr '[:upper:]' '[:lower:]'
+    else
+        echo "unknown"
+    fi
+}
+
+# Function to guess codename
+guess_codename() {
+    if command -v lsb_release >/dev/null 2>&1; then
+        lsb_release -c -s 2>/dev/null | tr '[:upper:]' '[:lower:]'
+    else
+        echo "unknown"
+    fi
+}
+
+# Handle guessing of values
+if [ "$DISTRO" = "::guess::" ]; then
+    DISTRO=$(guess_distro)
+fi
+
+if [ "$CODENAME" = "::guess::" ]; then
+    CODENAME=$(guess_codename)
+fi
+
+if [ "$VERSION" = "::guess::" ]; then
+    VERSION=$(git_version)
+fi
+
+# Version suffix
+VERSUFFIX="~${DISTRO}-${CODENAME}"
+
+# Get all tags
+TAGS=$(git_tags)
+
+# Create temporary file for tag pairs
+TMPFILE=$(mktemp)
+trap 'rm -f "$TMPFILE"' EXIT
+
+# Check if version is in tags
+if echo "$TAGS" | grep -q "^${VERSION}$"; then
+    # If version is a tag, start from that tag
+    echo "$TAGS" | awk -v ver="$VERSION" 'BEGIN{found=0} {if($0==ver)found=1; if(found)print}' > "$TMPFILE"
+else
+    # If version is not a tag, use HEAD as starting point
+    echo "$VERSION HEAD" > "$TMPFILE"
+    echo "$TAGS" >> "$TMPFILE"
+fi
+
+# Process tags and generate changelog
+PREV_TAG=""
+PREV_REF=""
+FIRST=1
+
+while IFS= read -r line; do
+    if [ -z "$line" ]; then
+        continue
+    fi
+
+    # Handle the special case of VERSION HEAD
+    if [ "$line" = "$VERSION HEAD" ]; then
+        TAG="$VERSION"
+        REF="HEAD"
+    else
+        TAG="$line"
+        REF="$line"
+    fi
+
+    if [ -n "$PREV_TAG" ]; then
+        # Get log entries between current and previous tag
+        LOG_ENTRIES=$(git_log "$REF" "$PREV_REF")
+
+        # Skip if no changes
+        if [ -z "$LOG_ENTRIES" ] || [ "$LOG_ENTRIES" = "" ]; then
+            PREV_TAG="$TAG"
+            PREV_REF="$REF"
+            continue
+        fi
+
+        # Print package header
+        printf "%s (%s%s) %s; urgency=%s\n\n" "$NAME" "$PREV_TAG" "$VERSUFFIX" "$CODENAME" "$URGENCY"
+
+        # Print each log entry
+        echo "$LOG_ENTRIES" | while IFS= read -r entry; do
+            if [ -n "$entry" ]; then
+                printf "  * %s\n" "$entry"
+            fi
+        done
+
+        # Print author and time
+        AUTHOR_TIME=$(git_author_and_time "$PREV_REF")
+        printf "\n %s\n\n" "$AUTHOR_TIME"
+    fi
+
+    PREV_TAG="$TAG"
+    PREV_REF="$REF"
+done < "$TMPFILE"

buildtools/install-build-pkgs

@@ -0,0 +1,162 @@
+#!/bin/sh
+
+set -e
+
+BUILD_ENV=/tmp/build-env
+
+write_gcc_env()
+{
+    {
+        printf 'export CC=%s\n' "$1"
+        printf 'export CXX=%s\n' "$2"
+    } > "$BUILD_ENV"
+}
+
+write_toolset_env()
+{
+    {
+        printf '. %s\n' "$1"
+        printf 'export CC=gcc\n'
+        printf 'export CXX=g++\n'
+    } > "$BUILD_ENV"
+}
+
+latest_apt_gxx()
+{
+    apt-cache --names-only search '^g[+][+]-[0-9]' \
+        | sed -n 's/^\(g++-[0-9][0-9]*\) .*/\1/p' \
+        | sort -t- -k2,2V \
+        | tail -n 1
+}
+
+latest_dnf_toolset()
+{
+    dnf -q list --showduplicates 'gcc-toolset-*-gcc-c++' 2>/dev/null \
+        | sed -n 's/^gcc-toolset-\([0-9][0-9]*\)-gcc-c++\..*/\1/p' \
+        | sort -V \
+        | tail -n 1
+}
+
+latest_yum_toolset()
+{
+    yum -q list available 'devtoolset-*-gcc-c++' 2>/dev/null \
+        | sed -n 's/^devtoolset-\([0-9][0-9]*\)-gcc-c++\..*/\1/p' \
+        | sort -V \
+        | tail -n 1
+}
+
+version_gt()
+{
+    highest="$(printf '%s\n%s\n' "$1" "$2" | sort -V | tail -n 1)"
+    [ "$highest" = "$1" ] && [ "$1" != "$2" ]
+}
+
+check_cxx20()
+{
+    cxx="${CXX:-g++}"
+    test_src=/tmp/mergerfs-cxx20-check.cpp
+    test_bin=/tmp/mergerfs-cxx20-check
+
+    cat > "$test_src" <<'EOF'
+template <typename T>
+concept Incrementable = requires(T value) { value + 1; };
+
+static_assert(Incrementable<int>);
+
+int main()
+{
+    return 0;
+}
+EOF
+
+    if ! "$cxx" -std=c++20 "$test_src" -o "$test_bin" >/dev/null 2>&1; then
+        echo "error: $cxx does not support C++20" >&2
+        exit 1
+    fi
+
+    rm -f "$test_src" "$test_bin"
+}
+
+: > "$BUILD_ENV"
+
+if [ -e /usr/bin/apt-get ]; then
+    export DEBIAN_FRONTEND=noninteractive
+    apt-get -qy update
+    cxx_pkg="$(latest_apt_gxx)"
+    if [ -n "$cxx_pkg" ]; then
+        gcc_pkg="gcc-${cxx_pkg#g++-}"
+        compiler_pkgs="$gcc_pkg $cxx_pkg"
+        write_gcc_env "$gcc_pkg" "$cxx_pkg"
+    else
+        compiler_pkgs="g++"
+        write_gcc_env gcc g++
+    fi
+    apt-get -qy --force-yes --no-install-suggests --no-install-recommends \
+	    install \
+            ca-certificates \
+            build-essential \
+            dpkg-dev \
+            git \
+            $compiler_pkgs \
+            debhelper \
+            lsb-release \
+            fakeroot
+    . "$BUILD_ENV"
+    check_cxx20
+elif [ -e /usr/bin/dnf ]; then
+    dnf -y update
+    toolset="$(latest_dnf_toolset)"
+    dnf -y install \
+        git rpm-build gcc-c++ make which libatomic
+    default_gxx_major="$(g++ -dumpversion | cut -f1 -d.)"
+    if [ -n "$toolset" ] && version_gt "$toolset" "$default_gxx_major"; then
+        dnf -y install \
+            "gcc-toolset-${toolset}-gcc" \
+            "gcc-toolset-${toolset}-gcc-c++"
+        write_toolset_env "/opt/rh/gcc-toolset-${toolset}/enable"
+    else
+        write_gcc_env gcc g++
+    fi
+    . "$BUILD_ENV"
+    check_cxx20
+elif [ -e /usr/bin/yum ]; then
+    yum -y update
+    yum -y install \
+        git rpm-build gcc-c++ make which
+    yum -y install centos-release-scl || true
+    yum -y update
+    toolset="$(latest_yum_toolset)"
+    default_gxx_major="$(g++ -dumpversion | cut -f1 -d.)"
+    if [ -n "$toolset" ] && version_gt "$toolset" "$default_gxx_major"; then
+        yum -y install \
+            "devtoolset-${toolset}-gcc" \
+            "devtoolset-${toolset}-gcc-c++"
+        write_toolset_env "/opt/rh/devtoolset-${toolset}/enable"
+    else
+        write_gcc_env gcc g++
+    fi
+    . "$BUILD_ENV"
+    check_cxx20
+elif [ -e /usr/bin/zypper ]; then
+    zypper update -y
+    zypper install -y \
+           git rpm-build gcc-c++ make which
+    write_gcc_env gcc g++
+    . "$BUILD_ENV"
+    check_cxx20
+elif [ -e /sbin/apk ]; then
+    apk add \
+        abuild git gcc g++ make \
+        linux-headers
+    write_gcc_env gcc g++
+    . "$BUILD_ENV"
+    check_cxx20
+elif [ -e /usr/sbin/pkg ]; then
+    pkg install \
+        git gmake gcc
+elif [ -e /usr/bin/pacman ]; then
+    pacman -Sy --noconfirm base-devel git fakeroot
+    write_gcc_env gcc g++
+    . "$BUILD_ENV"
+    check_cxx20
+fi

buildtools/install-build-tools

@@ -0,0 +1,32 @@
+#!/bin/sh
+
+if [ "$(id -u)" -eq 0 ]; then
+    SUDO=
+elif command -v sudo >/dev/null 2>&1; then
+    SUDO=sudo
+elif command -v doas >/dev/null 2>&1; then
+    SUDO=doas
+else
+    printf '%s\n' "error: need root privileges; run as root or install sudo/doas" >&2
+    exit 1
+fi
+
+if [ -e /usr/bin/apt-get ]; then
+    export DEBIAN_FRONTEND=noninteractive
+    ${SUDO} apt-get -qy update
+    ${SUDO} apt-get -qy --no-install-suggests --no-install-recommends install \
+            qemu-user-static \
+            podman
+elif [ -e /usr/bin/dnf ]; then
+    ${SUDO} dnf -y update
+    ${SUDO} dnf -y install \
+        qemu-user-static \
+        podman
+elif [ -e /sbin/apk ]; then
+    ${SUDO} apk add \
+        python3 \
+        qemu-user-static \
+        podman
+elif [ -e /usr/bin/pacman ]; then
+    ${SUDO} pacman -Sy --noconfirm qemu-user-static podman
+fi

buildtools/target-containers.txt

@@ -0,0 +1,39 @@
+debian:11 amd64
+debian:11 arm64
+debian:11 armhf
+debian:11 i386
+debian:12 amd64
+debian:12 arm64
+debian:12 armhf
+debian:12 i386
+debian:13 amd64
+debian:13 arm64
+debian:13 armhf
+debian:13 i386
+debian:13 riscv64
+fedora:40 amd64
+fedora:40 arm64
+fedora:41 amd64
+fedora:41 arm64
+fedora:42 amd64
+fedora:42 arm64
+fedora:43 amd64
+fedora:43 arm64
+quay.io/rockylinux/rockylinux:10 amd64
+quay.io/rockylinux/rockylinux:10 arm64
+quay.io/rockylinux/rockylinux:8 amd64
+quay.io/rockylinux/rockylinux:8 arm64
+quay.io/rockylinux/rockylinux:9 amd64
+quay.io/rockylinux/rockylinux:9 arm64
+ubuntu:22.04 amd64
+ubuntu:22.04 arm64
+ubuntu:22.04 armhf
+ubuntu:22.04 riscv64
+ubuntu:24.04 amd64
+ubuntu:24.04 arm64
+ubuntu:24.04 armhf
+ubuntu:24.04 riscv64
+ubuntu:25.04 amd64
+ubuntu:25.04 arm64
+ubuntu:25.04 armhf
+ubuntu:25.04 riscv64

buildtools/update-version

@@ -9,10 +9,12 @@ if [ "${VERSION}" = "" ]; then
     VERSION="unknown"
 fi
 
+echo "version = ${VERSION}"
 echo -n "${VERSION}" > VERSION
-grep -q \"${VERSION}\" src/version.hpp
+grep -sq \"${VERSION}\" src/version.hpp
 RV=$?
 if [ $RV -ne 0 ]; then
+    echo "Writing 'src/version.hpp'"
     echo "#pragma once" > src/version.hpp
     echo "static const char MERGERFS_VERSION[] = \"${VERSION}\";" >> src/version.hpp
 fi

debian/compat

@@ -1 +0,0 @@
-9

debian/control

@@ -2,7 +2,7 @@ Source: mergerfs
 Section: utils
 Priority: optional
 Maintainer: Antonio SJ Musumeci <trapexit@spawn.link>
-Build-Depends: debhelper (>= 8.0.0)
+Build-Depends: debhelper-compat (= 10)
 Standards-Version: 3.9.4
 Homepage: http://github.com/trapexit/mergerfs
 

debian/rules

@@ -1,11 +1,16 @@
 #!/usr/bin/make -f
 # -*- makefile -*-
 
-# Uncomment this to turn on verbose mode.
 export DH_VERBOSE=1
 
 %:
-	dh $@ --parallel
+	dh $@
+
+override_dh_auto_build:
+	$(MAKE) release
 
 override_dh_auto_install:
-	$(MAKE) DESTDIR=$(CURDIR)/debian/mergerfs PREFIX=/usr install
+	$(MAKE) \
+		DESTDIR=$(CURDIR)/debian/mergerfs \
+		PREFIX=/usr \
+		install

libfuse/Makefile

@@ -1,146 +0,0 @@
-VERSION = 2.9.7-mergerfs_2.30.0
-
-OS := $(shell uname -s)
-ifeq ($(OS),Linux)
-UTILS := utils
-INSTALLUTILS := install-utils
-else
-UTILS :=
-INSTALLUTILS :=
-endif
-
-ifeq ($(DEBUG),1)
-OPT_FLAGS := -O0 -g -fsanitize=undefined
-else
-OPT_FLAGS := -O2
-endif
-
-ifeq ($(LTO),1)
-LTO_FLAGS := -flto
-else
-LTO_FLAGS :=
-endif
-
-DESTDIR       =
-PREFIX        = /usr/local
-EXEC_PREFIX   = $(PREFIX)
-DATAROOTDIR   = $(PREFIX)/share
-DATADIR       = $(DATAROOTDIR)
-BINDIR        = $(EXEC_PREFIX)/bin
-SBINDIR       = /sbin
-MANDIR        = $(DATAROOTDIR)/man
-MAN1DIR       = $(MANDIR)/man1
-
-INSTALLBINDIR  = $(DESTDIR)$(BINDIR)
-INSTALLSBINDIR = $(DESTDIR)$(SBINDIR)
-INSTALLMAN1DIR = $(DESTDIR)$(MAN1DIR)
-
-AR ?= ar
-
-SRC_C = \
-	lib/buffer.c \
-	lib/crc32b.c \
-	lib/debug.c \
-	lib/fuse.c \
-	lib/fuse_dirents.c \
-	lib/fuse_lowlevel.c \
-	lib/node.c \
-	lib/fuse_node.c \
-	lib/fuse_opt.c \
-	lib/fuse_session.c \
-	lib/fuse_signals.c \
-	lib/helper.c \
-	lib/mount.c
-SRC_CPP = \
-	lib/format.cpp \
-	lib/os.cpp \
-	lib/cpu.cpp \
-	lib/fuse_config.cpp \
-	lib/fuse_loop.cpp \
-	lib/fuse_msgbuf.cpp
-OBJS_C   = $(SRC_C:lib/%.c=build/%.o)
-OBJS_CPP = $(SRC_CPP:lib/%.cpp=build/%.o)
-DEPS_C   = $(SRC_C:lib/%.c=build/%.d)
-DEPS_CPP = $(SRC_CPP:lib/%.cpp=build/%.d)
-CFLAGS ?= \
-	$(OPT_FLAGS)
-CFLAGS := \
-	${CFLAGS} \
-	$(LTO_FLAGS) \
-	-std=gnu99 \
-	-Wall \
-	-pipe \
-	-MMD
-CXXFLAGS := \
-	${CXXFLAGS} \
-	$(LTO_FLAGS) \
-	-std=c++11 \
-	-Wall \
-	-pipe \
-	-MMD
-FUSERMOUNT_DIR = $(BINDIR)
-FUSE_FLAGS = \
-	-Iinclude \
-	-Ibuild \
-	-D_REENTRANT \
-	-D_FILE_OFFSET_BITS=64 \
-	-DPACKAGE_VERSION=\"$(VERSION)\" \
-	-DFUSERMOUNT_DIR=\"$(FUSERMOUNT_DIR)\"
-LDFLAGS := \
-	${LDFLAGS} \
-	-lrt \
-	-pthread
-
-all: build/libfuse.a $(UTILS)
-
-build/config.h: build/stamp
-	ecfd/build | tee build/config.h
-
-build/stamp:
-	mkdir -p build
-	touch $@
-
-objects: build/config.h
-	$(MAKE) $(OBJS_C) $(OBJS_CPP)
-
-build/libfuse.a: objects
-	${AR} rcs build/libfuse.a $(OBJS_C) $(OBJS_CPP)
-
-utils: mergerfs-fusermount mount.mergerfs
-
-build/mergerfs-fusermount: build/config.h util/fusermount.c lib/mount_util.c
-	$(CC) $(CFLAGS) $(FUSE_FLAGS) -Ilib -o build/mergerfs-fusermount util/fusermount.c lib/mount_util.c
-
-mergerfs-fusermount: build/mergerfs-fusermount
-
-build/mount.mergerfs: build/libfuse.a util/mount.mergerfs.c
-	$(CC) $(CFLAGS) $(FUSE_FLAGS) -o build/mount.mergerfs util/mount.mergerfs.c build/libfuse.a $(LDFLAGS)
-
-mount.mergerfs: build/mount.mergerfs
-
-build/%.o: lib/%.c
-	$(CC) $(CFLAGS) $(FUSE_FLAGS) -c $< -o $@
-
-build/%.o: lib/%.cpp
-	$(CXX) $(CXXFLAGS) $(FUSE_FLAGS) -c $< -o $@
-
-clean:
-	rm -rf build
-
-distclean: clean
-
-strip:
-	strip --strip-all build/mount.mergerfs
-	strip --strip-all build/mergerfs-fusermount
-
-install-utils: mergerfs-fusermount mount.mergerfs strip
-	install -D build/mergerfs-fusermount "$(INSTALLBINDIR)/mergerfs-fusermount"
-	install -D build/mount.mergerfs "$(INSTALLSBINDIR)/mount.mergerfs"
-	chown root "$(INSTALLBINDIR)/mergerfs-fusermount"
-	chmod u+s "$(INSTALLBINDIR)/mergerfs-fusermount"
-
-install: $(INSTALLUTILS)
-
-.PHONY: objects strip utils install install-utils
-
--include $(DEPS_C) $(DEPS_CPP)

libfuse/ecfd/README.md

@@ -1,16 +0,0 @@
-# ecfd: embeddable C feature discovery
-
-This is a simple script and set of tests to help with what would traditionally be the `configure` step of most C/C++. It is intended to be simple to be embedded into a project and only depends on the C compiler and /bin/sh.
-
-
-## USAGE
-
-First copy `ecfd` into your project. Next simply call the build script which will run the tests and output a `config.` style file to `stdout`. Compile errors will output to `stderr` which can be used to understand why they aren't working.
-
-```
-$ ./ecfd/build > include/config.h
-```
-
-## TESTS
-
-Each test is in a single module. The build script will try to compile each module and on success will execute the program. If anything is printed to `stdout` it will be appended to the `#define` printed to the build script's `stdout`. If the compilation fails nothing will be printed. Look at the tests directory for examples.

libfuse/ecfd/build

@@ -1,32 +0,0 @@
-#!/bin/sh
-
-PWD=$(pwd)
-BASEPATH="${PWD}/${0%/*}"
-
-CC=${CC:-cc}
-OUTPUT="/dev/null"
-
-echo "#ifndef CONFIG_H_INCLUDED"
-echo "#define CONFIG_H_INCLUDED"
-echo
-
-IFS=
-for file in "${BASEPATH}/tests/"*.c
-do
-    binary="${file%.c}"
-    basename=$(basename ${binary})
-
-    ${CC} -o "${binary}" "${file}" 1>&2
-    if [ $? -eq 0 ]; then
-        STDOUT=$(${binary})
-        if [ "${STDOUT}" != "" ]; then
-            echo "#define ${basename} ${STDOUT}"
-        else
-            echo "#define ${basename}"
-        fi
-        rm -f "${binary}"
-    fi
-done
-
-echo
-echo "#endif"

libfuse/ecfd/tests/HAVE_FORK.c

@@ -1,10 +0,0 @@
-#include <sys/types.h>
-#include <unistd.h>
-
-int
-main(void)
-{
-  (void)fork;
-  
-  return 0;
-}

libfuse/ecfd/tests/HAVE_MALLOC_TRIM.c

@@ -1,7 +0,0 @@
-#include <malloc.h>
-
-int
-main()
-{
-  malloc_trim(0);
-}

libfuse/ecfd/tests/HAVE_STRUCT_STAT_ST_ATIM.c

@@ -1,14 +0,0 @@
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <unistd.h>
-
-int
-main(int   argc,
-     char *argv[])
-{
-  struct stat st;
-
-  (void)st.st_atim;
-
-  return 0;
-}

libfuse/ecfd/tests/HAVE_UTIMENSAT.c

@@ -1,11 +0,0 @@
-#include <fcntl.h>
-#include <sys/stat.h>
-
-int
-main(int   argc,
-     char *argv[])
-{
-  (void)utimensat;
-
-  return 0;
-}

libfuse/ecfd/tests/static_assert.h

@@ -1,4 +0,0 @@
-#pragma once
-
-#define STATIC_ASSERT(condition) \
-	((void)sizeof(char[1 - 2*!(condition)]))

libfuse/include/fuse.h

@@ -1,784 +0,0 @@
-/*
-  FUSE: Filesystem in Userspace
-  Copyright (C) 2001-2007  Miklos Szeredi <miklos@szeredi.hu>
-
-  This program can be distributed under the terms of the GNU LGPLv2.
-  See the file COPYING.LIB.
-*/
-
-#ifndef _FUSE_H_
-#define _FUSE_H_
-
-#include "extern_c.h"
-#include "fuse_common.h"
-
-#include <fcntl.h>
-#include <time.h>
-#include <utime.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/statvfs.h>
-#include <sys/uio.h>
-
-EXTERN_C_BEGIN
-
-/* ----------------------------------------------------------- *
- * Basic FUSE API					       *
- * ----------------------------------------------------------- */
-
-/** Handle for a FUSE filesystem */
-struct fuse;
-
-/** Structure containing a raw command */
-struct fuse_cmd;
-
-struct fuse_dirents_t;
-typedef struct fuse_dirents_t fuse_dirents_t;
-
-/**
- * The file system operations:
- *
- * Most of these should work very similarly to the well known UNIX
- * file system operations.  A major exception is that instead of
- * returning an error in 'errno', the operation should return the
- * negated error value (-errno) directly.
- *
- * All methods are optional, but some are essential for a useful
- * filesystem (e.g. getattr).  Open, flush, release, fsync, opendir,
- * releasedir, fsyncdir, access, create, ftruncate, fgetattr, lock,
- * init and destroy are special purpose methods, without which a full
- * featured filesystem can still be implemented.
- *
- * Almost all operations take a path which can be of any length.
- *
- * Changed in fuse 2.8.0 (regardless of API version)
- * Previously, paths were limited to a length of PATH_MAX.
- *
- * See http://fuse.sourceforge.net/wiki/ for more information.  There
- * is also a snapshot of the relevant wiki pages in the doc/ folder.
- */
-struct fuse_operations
-{
-  /** Get file attributes.
-   *
-   * Similar to stat().  The 'st_dev' and 'st_blksize' fields are
-   * ignored.	 The 'st_ino' field is ignored except if the 'use_ino'
-   * mount option is given.
-   */
-  int (*getattr) (const char *, struct stat *, fuse_timeouts_t *);
-
-  /** Read the target of a symbolic link
-   *
-   * The buffer should be filled with a null terminated string.  The
-   * buffer size argument includes the space for the terminating
-   * null character.	If the linkname is too long to fit in the
-   * buffer, it should be truncated.	The return value should be 0
-   * for success.
-   */
-  int (*readlink) (const char *, char *, size_t);
-
-  /** Create a file node
-   *
-   * This is called for creation of all non-directory, non-symlink
-   * nodes.  If the filesystem defines a create() method, then for
-   * regular files that will be called instead.
-   */
-  int (*mknod) (const char *, mode_t, dev_t);
-
-  /** Create a directory
-   *
-   * Note that the mode argument may not have the type specification
-   * bits set, i.e. S_ISDIR(mode) can be false.  To obtain the
-   * correct directory type bits use  mode|S_IFDIR
-   * */
-  int (*mkdir) (const char *, mode_t);
-
-  /** Hide files unlinked / renamed over
-   *
-   * Allows storing of a file handle when a file is unlinked
-   * while open. Helps manage the fact the kernel usually does
-   * not send fh with getattr requests.
-   */
-  int (*prepare_hide)(const char *name_, uint64_t *fh_);
-  int (*free_hide)(const uint64_t fh_);
-
-  /** Remove a file */
-  int (*unlink) (const char *);
-
-  /** Remove a directory */
-  int (*rmdir) (const char *);
-
-  /** Create a symbolic link */
-  int (*symlink) (const char *, const char *, struct stat *, fuse_timeouts_t *);
-
-  /** Rename a file */
-  int (*rename) (const char *, const char *);
-
-  /** Create a hard link to a file */
-  int (*link) (const char *, const char *, struct stat *, fuse_timeouts_t *);
-
-  /** Change the permission bits of a file */
-  int (*chmod) (const char *, mode_t);
-  int (*fchmod)(const fuse_file_info_t *, const mode_t);
-
-  /** Change the owner and group of a file */
-  int (*chown) (const char *, uid_t, gid_t);
-  int (*fchown)(const fuse_file_info_t *, const uid_t, const gid_t);
-
-  /** Change the size of a file */
-  int (*truncate) (const char *, off_t);
-
-  /** File open operation
-   *
-   * No creation (O_CREAT, O_EXCL) and by default also no
-   * truncation (O_TRUNC) flags will be passed to open(). If an
-   * application specifies O_TRUNC, fuse first calls truncate()
-   * and then open(). Only if 'atomic_o_trunc' has been
-   * specified and kernel version is 2.6.24 or later, O_TRUNC is
-   * passed on to open.
-   *
-   * Unless the 'default_permissions' mount option is given,
-   * open should check if the operation is permitted for the
-   * given flags. Optionally open may also return an arbitrary
-   * filehandle in the fuse_file_info structure, which will be
-   * passed to all file operations.
-   *
-   * Changed in version 2.2
-   */
-  int (*open) (const char *, fuse_file_info_t *);
-
-  /** Get file system statistics
-   *
-   * The 'f_frsize', 'f_favail', 'f_fsid' and 'f_flag' fields are ignored
-   *
-   * Replaced 'struct statfs' parameter with 'struct statvfs' in
-   * version 2.5
-   */
-  int (*statfs) (const char *, struct statvfs *);
-
-  /** Possibly flush cached data
-   *
-   * BIG NOTE: This is not equivalent to fsync().  It's not a
-   * request to sync dirty data.
-   *
-   * Flush is called on each close() of a file descriptor.  So if a
-   * filesystem wants to return write errors in close() and the file
-   * has cached dirty data, this is a good place to write back data
-   * and return any errors.  Since many applications ignore close()
-   * errors this is not always useful.
-   *
-   * NOTE: The flush() method may be called more than once for each
-   * open().	This happens if more than one file descriptor refers
-   * to an opened file due to dup(), dup2() or fork() calls.	It is
-   * not possible to determine if a flush is final, so each flush
-   * should be treated equally.  Multiple write-flush sequences are
-   * relatively rare, so this shouldn't be a problem.
-   *
-   * Filesystems shouldn't assume that flush will always be called
-   * after some writes, or that if will be called at all.
-   *
-   * Changed in version 2.2
-   */
-  int (*flush) (const fuse_file_info_t *);
-
-  /** Release an open file
-   *
-   * Release is called when there are no more references to an open
-   * file: all file descriptors are closed and all memory mappings
-   * are unmapped.
-   *
-   * For every open() call there will be exactly one release() call
-   * with the same flags and file descriptor.	 It is possible to
-   * have a file opened more than once, in which case only the last
-   * release will mean, that no more reads/writes will happen on the
-   * file.  The return value of release is ignored.
-   *
-   * Changed in version 2.2
-   */
-  int (*release) (const fuse_file_info_t *);
-
-  /** Synchronize file contents
-   *
-   * If the datasync parameter is non-zero, then only the user data
-   * should be flushed, not the meta data.
-   *
-   * Changed in version 2.2
-   */
-  int (*fsync) (const fuse_file_info_t *, int);
-
-  /** Set extended attributes */
-  int (*setxattr) (const char *, const char *, const char *, size_t, int);
-
-  /** Get extended attributes */
-  int (*getxattr) (const char *, const char *, char *, size_t);
-
-  /** List extended attributes */
-  int (*listxattr) (const char *, char *, size_t);
-
-  /** Remove extended attributes */
-  int (*removexattr) (const char *, const char *);
-
-  /** Open directory
-   *
-   * Unless the 'default_permissions' mount option is given,
-   * this method should check if opendir is permitted for this
-   * directory. Optionally opendir may also return an arbitrary
-   * filehandle in the fuse_file_info structure, which will be
-   * passed to readdir, closedir and fsyncdir.
-   *
-   * Introduced in version 2.3
-   */
-  int (*opendir) (const char *,
-                  fuse_file_info_t *);
-
-  /** Read directory
-   *
-   * This supersedes the old getdir() interface.  New applications
-   * should use this.
-   *
-   * The filesystem may choose between two modes of operation:
-   *
-   * 1) The readdir implementation ignores the offset parameter, and
-   * passes zero to the filler function's offset.  The filler
-   * function will not return '1' (unless an error happens), so the
-   * whole directory is read in a single readdir operation.  This
-   * works just like the old getdir() method.
-   *
-   * 2) The readdir implementation keeps track of the offsets of the
-   * directory entries.  It uses the offset parameter and always
-   * passes non-zero offset to the filler function.  When the buffer
-   * is full (or an error happens) the filler function will return
-   * '1'.
-   *
-   * Introduced in version 2.3
-   */
-  int (*readdir)(const fuse_file_info_t *,
-                 fuse_dirents_t *);
-
-  int (*readdir_plus)(const fuse_file_info_t *,
-                      fuse_dirents_t *);
-
-
-  /** Release directory
-   *
-   * Introduced in version 2.3
-   */
-  int (*releasedir) (const fuse_file_info_t *);
-
-  /** Synchronize directory contents
-   *
-   * If the datasync parameter is non-zero, then only the user data
-   * should be flushed, not the meta data
-   *
-   * Introduced in version 2.3
-   */
-  int (*fsyncdir) (const fuse_file_info_t *, int);
-
-  /**
-   * Initialize filesystem
-   *
-   * The return value will passed in the private_data field of
-   * fuse_context to all file operations and as a parameter to the
-   * destroy() method.
-   *
-   * Introduced in version 2.3
-   * Changed in version 2.6
-   */
-  void *(*init) (struct fuse_conn_info *conn);
-
-  /**
-   * Clean up filesystem
-   *
-   * Called on filesystem exit.
-   *
-   * Introduced in version 2.3
-   */
-  void (*destroy) (void);
-
-  /**
-   * Check file access permissions
-   *
-   * This will be called for the access() system call.  If the
-   * 'default_permissions' mount option is given, this method is not
-   * called.
-   *
-   * This method is not called under Linux kernel versions 2.4.x
-   *
-   * Introduced in version 2.5
-   */
-  int (*access) (const char *, int);
-
-  /**
-   * Create and open a file
-   *
-   * If the file does not exist, first create it with the specified
-   * mode, and then open it.
-   *
-   * If this method is not implemented or under Linux kernel
-   * versions earlier than 2.6.15, the mknod() and open() methods
-   * will be called instead.
-   *
-   * Introduced in version 2.5
-   */
-  int (*create) (const char *, mode_t, fuse_file_info_t *);
-
-  /**
-   * Change the size of an open file
-   *
-   * This method is called instead of the truncate() method if the
-   * truncation was invoked from an ftruncate() system call.
-   *
-   * If this method is not implemented or under Linux kernel
-   * versions earlier than 2.6.15, the truncate() method will be
-   * called instead.
-   *
-   * Introduced in version 2.5
-   */
-  int (*ftruncate) (const fuse_file_info_t *, off_t);
-
-  /**
-   * Get attributes from an open file
-   *
-   * This method is called instead of the getattr() method if the
-   * file information is available.
-   *
-   * Currently this is only called after the create() method if that
-   * is implemented (see above).  Later it may be called for
-   * invocations of fstat() too.
-   *
-   * Introduced in version 2.5
-   */
-  int (*fgetattr) (const fuse_file_info_t *, struct stat *, fuse_timeouts_t *);
-
-  /**
-   * Perform POSIX file locking operation
-   *
-   * The cmd argument will be either F_GETLK, F_SETLK or F_SETLKW.
-   *
-   * For the meaning of fields in 'struct flock' see the man page
-   * for fcntl(2).  The l_whence field will always be set to
-   * SEEK_SET.
-   *
-   * For checking lock ownership, the 'fuse_file_info->owner'
-   * argument must be used.
-   *
-   * For F_GETLK operation, the library will first check currently
-   * held locks, and if a conflicting lock is found it will return
-   * information without calling this method.	 This ensures, that
-   * for local locks the l_pid field is correctly filled in.	The
-   * results may not be accurate in case of race conditions and in
-   * the presence of hard links, but it's unlikely that an
-   * application would rely on accurate GETLK results in these
-   * cases.  If a conflicting lock is not found, this method will be
-   * called, and the filesystem may fill out l_pid by a meaningful
-   * value, or it may leave this field zero.
-   *
-   * For F_SETLK and F_SETLKW the l_pid field will be set to the pid
-   * of the process performing the locking operation.
-   *
-   * Note: if this method is not implemented, the kernel will still
-   * allow file locking to work locally.  Hence it is only
-   * interesting for network filesystems and similar.
-   *
-   * Introduced in version 2.6
-   */
-  int (*lock) (const fuse_file_info_t *,
-               int cmd,
-               struct flock *);
-
-  /**
-   * Change the access and modification times of a file with
-   * nanosecond resolution
-   *
-   * This supersedes the old utime() interface.  New applications
-   * should use this.
-   *
-   * See the utimensat(2) man page for details.
-   *
-   * Introduced in version 2.6
-   */
-  int (*utimens)(const char *, const struct timespec tv[2]);
-  int (*futimens)(const fuse_file_info_t *ffi_, const struct timespec tv_[2]);
-
-  /**
-   * Map block index within file to block index within device
-   *
-   * Note: This makes sense only for block device backed filesystems
-   * mounted with the 'blkdev' option
-   *
-   * Introduced in version 2.6
-   */
-  int (*bmap) (const char *, size_t blocksize, uint64_t *idx);
-
-  /**
-   * Ioctl
-   *
-   * flags will have FUSE_IOCTL_COMPAT set for 32bit ioctls in
-   * 64bit environment.  The size and direction of data is
-   * determined by _IOC_*() decoding of cmd.  For _IOC_NONE,
-   * data will be NULL, for _IOC_WRITE data is out area, for
-   * _IOC_READ in area and if both are set in/out area.  In all
-   * non-NULL cases, the area is of _IOC_SIZE(cmd) bytes.
-   *
-   * If flags has FUSE_IOCTL_DIR then the fuse_file_info refers to a
-   * directory file handle.
-   *
-   * Introduced in version 2.8
-   */
-  int (*ioctl) (const fuse_file_info_t *ffi,
-                unsigned long           cmd,
-                void                   *arg,
-                unsigned int            flags,
-                void                   *data,
-                uint32_t               *out_bufsz);
-
-  /**
-   * Poll for IO readiness events
-   *
-   * Note: If ph is non-NULL, the client should notify
-   * when IO readiness events occur by calling
-   * fuse_notify_poll() with the specified ph.
-   *
-   * Regardless of the number of times poll with a non-NULL ph
-   * is received, single notification is enough to clear all.
-   * Notifying more times incurs overhead but doesn't harm
-   * correctness.
-   *
-   * The callee is responsible for destroying ph with
-   * fuse_pollhandle_destroy() when no longer in use.
-   *
-   * Introduced in version 2.8
-   */
-  int (*poll) (const fuse_file_info_t *ffi,
-               fuse_pollhandle_t      *ph,
-               unsigned               *reventsp);
-
-  /** Write contents of buffer to an open file
-   *
-   * Similar to the write() method, but data is supplied in a
-   * generic buffer.  Use fuse_buf_copy() to transfer data to
-   * the destination.
-   *
-   * Introduced in version 2.9
-   */
-  int (*write) (const fuse_file_info_t *ffi,
-                const char             *data,
-                size_t                  size,
-                off_t                   off);
-
-  /** Store data from an open file in a buffer
-   *
-   * Similar to the read() method, but data is stored and
-   * returned in a generic buffer.
-   *
-   * No actual copying of data has to take place, the source
-   * file descriptor may simply be stored in the buffer for
-   * later data transfer.
-   *
-   * The buffer must be allocated dynamically and stored at the
-   * location pointed to by bufp.  If the buffer contains memory
-   * regions, they too must be allocated using malloc().  The
-   * allocated memory will be freed by the caller.
-   *
-   * Introduced in version 2.9
-   */
-  int (*read)(const fuse_file_info_t *ffi,
-              char                   *buf,
-              size_t                  size,
-              off_t                   off);
-  /**
-   * Perform BSD file locking operation
-   *
-   * The op argument will be either LOCK_SH, LOCK_EX or LOCK_UN
-   *
-   * Nonblocking requests will be indicated by ORing LOCK_NB to
-   * the above operations
-   *
-   * For more information see the flock(2) manual page.
-   *
-   * Additionally fi->owner will be set to a value unique to
-   * this open file.  This same value will be supplied to
-   * ->release() when the file is released.
-   *
-   * Note: if this method is not implemented, the kernel will still
-   * allow file locking to work locally.  Hence it is only
-   * interesting for network filesystems and similar.
-   *
-   * Introduced in version 2.9
-   */
-  int (*flock) (const fuse_file_info_t *, int op);
-
-  /**
-   * Allocates space for an open file
-   *
-   * This function ensures that required space is allocated for specified
-   * file.  If this function returns success then any subsequent write
-   * request to specified range is guaranteed not to fail because of lack
-   * of space on the file system media.
-   *
-   * Introduced in version 2.9.1
-   */
-  int (*fallocate) (const fuse_file_info_t *, int, off_t, off_t);
-
-  /**
-   * Copy a range of data from one file to another
-   *
-   * Performs an optimized copy between two file descriptors without
-   * the additional cost of transferring data through the FUSE kernel
-   * module to user space (glibc) and then back into the FUSE filesystem
-   * again.
-   *
-   * In case this method is not implemented, glibc falls back to
-   * reading data from the source and writing to the
-   * destination. Effectively doing an inefficient copy of the
-   * data.
-   */
-  ssize_t (*copy_file_range)(const fuse_file_info_t *fi_in,
-                             off_t                   offset_in,
-                             const fuse_file_info_t *fi_out,
-                             off_t                   offset_out,
-                             size_t                  size,
-                             int                     flags);
-
-  ssize_t (*setupmapping)(uint64_t *fh_,
-                          uint64_t  foffset_,
-                          uint64_t  len_,
-                          uint64_t  flags_,
-                          uint64_t  moffset_);
-
-  int (*removemapping)();
-  int (*syncfs)();
-  int (*tmpfile)(const char *, mode_t, fuse_file_info_t *);
-};
-
-/** Extra context that may be needed by some filesystems
- *
- * The uid, gid and pid fields are not filled in case of a writepage
- * operation.
- */
-struct fuse_context
-{
-  /** Pointer to the fuse object */
-  struct fuse *fuse;
-
-  /** User ID of the calling process */
-  uid_t uid;
-
-  /** Group ID of the calling process */
-  gid_t gid;
-
-  /** Thread ID of the calling process */
-  pid_t pid;
-
-  /** Umask of the calling process (introduced in version 2.8) */
-  mode_t umask;
-};
-
-/**
- * Main function of FUSE.
- *
- * This is for the lazy.  This is all that has to be called from the
- * main() function.
- *
- * This function does the following:
- *   - parses command line options (-d -s and -h)
- *   - passes relevant mount options to the fuse_mount()
- *   - installs signal handlers for INT, HUP, TERM and PIPE
- *   - registers an exit handler to unmount the filesystem on program exit
- *   - creates a fuse handle
- *   - registers the operations
- *   - calls either the single-threaded or the multi-threaded event loop
- *
- * Note: this is currently implemented as a macro.
- *
- * @param argc the argument counter passed to the main() function
- * @param argv the argument vector passed to the main() function
- * @param op the file system operation
- * @return 0 on success, nonzero on failure
- */
-/*
-  int fuse_main(int argc, char *argv[], const struct fuse_operations *op);
-*/
-#define fuse_main(argc, argv, op)                    \
-  fuse_main_real(argc, argv, op, sizeof(*(op)))
-
-/* ----------------------------------------------------------- *
- * More detailed API					       *
- * ----------------------------------------------------------- */
-
-/**
- * Create a new FUSE filesystem.
- *
- * @param ch the communication channel
- * @param args argument vector
- * @param op the filesystem operations
- * @param op_size the size of the fuse_operations structure
- * @return the created FUSE handle
- */
-struct fuse *fuse_new(struct fuse_chan *ch, struct fuse_args *args,
-                      const struct fuse_operations *op, size_t op_size);
-
-/**
- * Destroy the FUSE handle.
- *
- * The communication channel attached to the handle is also destroyed.
- *
- * NOTE: This function does not unmount the filesystem.	 If this is
- * needed, call fuse_unmount() before calling this function.
- *
- * @param f the FUSE handle
- */
-void fuse_destroy(struct fuse *f);
-
-/**
- * Exit from event loop
- *
- * @param f the FUSE handle
- */
-void fuse_exit(struct fuse *f);
-
-int fuse_config_read_thread_count(const struct fuse *f);
-int fuse_config_process_thread_count(const struct fuse *f);
-int fuse_config_process_thread_queue_depth(const struct fuse *f);
-const char* fuse_config_pin_threads(const struct fuse *f);
-
-/**
- * FUSE event loop with multiple threads
- *
- * Requests from the kernel are processed, and the appropriate
- * operations are called.  Request are processed in parallel by
- * distributing them between multiple threads.
- *
- * Calling this function requires the pthreads library to be linked to
- * the application.
- *
- * @param f the FUSE handle
- * @return 0 if no error occurred, -1 otherwise
- */
-int fuse_loop_mt(struct fuse *f);
-
-/**
- * Get the current context
- *
- * The context is only valid for the duration of a filesystem
- * operation, and thus must not be stored and used later.
- *
- * @return the context
- */
-struct fuse_context *fuse_get_context(void);
-
-/**
- * Check if the current request has already been interrupted
- *
- * @return 1 if the request has been interrupted, 0 otherwise
- */
-int fuse_interrupted(void);
-
-/**
- * Obsolete, doesn't do anything
- *
- * @return -EINVAL
- */
-int fuse_invalidate(struct fuse *f, const char *path);
-
-/* Deprecated, don't use */
-int fuse_is_lib_option(const char *opt);
-
-/**
- * The real main function
- *
- * Do not call this directly, use fuse_main()
- */
-int fuse_main_real(int argc, char *argv[], const struct fuse_operations *op, size_t op_size);
-
-int  fuse_start_maintenance_thread(struct fuse *fuse);
-void fuse_stop_maintenance_thread(struct fuse *fuse);
-
-int  fuse_log_metrics_get(void);
-void fuse_log_metrics_set(int enabled);
-
-
-/**
- * Iterate over cache removing stale entries
- * use in conjunction with "-oremember"
- *
- * NOTE: This is already done for the standard sessions
- *
- * @param fuse struct fuse pointer for fuse instance
- * @return the number of seconds until the next cleanup
- */
-int fuse_clean_cache(struct fuse *fuse);
-
-/*
- * Stacking API
- */
-
-/**
- * Fuse filesystem object
- *
- * This is opaque object represents a filesystem layer
- */
-struct fuse_fs;
-
-/*
- * These functions call the relevant filesystem operation, and return
- * the result.
- *
- * If the operation is not defined, they return -ENOSYS, with the
- * exception of fuse_fs_open, fuse_fs_release, fuse_fs_opendir,
- * fuse_fs_releasedir and fuse_fs_statfs, which return 0.
- */
-
-int fuse_notify_poll(fuse_pollhandle_t *ph);
-
-/**
- * Create a new fuse filesystem object
- *
- * This is usually called from the factory of a fuse module to create
- * a new instance of a filesystem.
- *
- * @param op the filesystem operations
- * @param op_size the size of the fuse_operations structure
- * @return a new filesystem object
- */
-struct fuse_fs *fuse_fs_new(const struct fuse_operations *op, size_t op_size);
-
-/* ----------------------------------------------------------- *
- * Advanced API for event handling, don't worry about this...  *
- * ----------------------------------------------------------- */
-
-/* NOTE: the following functions are deprecated, and will be removed
-   from the 3.0 API.  Use the lowlevel session functions instead */
-
-/** Function type used to process commands */
-typedef void (*fuse_processor_t)(struct fuse *, struct fuse_cmd *, void *);
-
-/** This is the part of fuse_main() before the event loop */
-struct fuse *fuse_setup(int argc, char *argv[],
-                        const struct fuse_operations *op, size_t op_size,
-                        char **mountpoint);
-
-/** This is the part of fuse_main() after the event loop */
-void fuse_teardown(struct fuse *fuse, char *mountpoint);
-
-/** Multi threaded event loop, which calls the custom command
-    processor function */
-int fuse_loop_mt_proc(struct fuse *f, fuse_processor_t proc, void *data);
-
-/** Return the exited flag, which indicates if fuse_exit() has been
-    called */
-int fuse_exited(struct fuse *f);
-
-/** This function is obsolete and implemented as a no-op */
-void fuse_set_getcontext_func(struct fuse_context *(*func)(void));
-
-/** Get session from fuse object */
-struct fuse_session *fuse_get_session(struct fuse *f);
-
-void fuse_gc1();
-void fuse_gc();
-void fuse_invalidate_all_nodes();
-
-EXTERN_C_END
-
-#endif /* _FUSE_H_ */

libfuse/include/fuse_dirents.h

@@ -1,80 +0,0 @@
-/*
-  ISC License
-
-  Copyright (c) 2019, Antonio SJ Musumeci <trapexit@spawn.link>
-
-  Permission to use, copy, modify, and/or distribute this software for any
-  purpose with or without fee is hereby granted, provided that the above
-  copyright notice and this permission notice appear in all copies.
-
-  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-*/
-
-#pragma once
-
-#include "extern_c.h"
-
-EXTERN_C_BEGIN
-
-#include "kvec.h"
-#include "fuse_dirent.h"
-#include "fuse_direntplus.h"
-#include "fuse_entry.h"
-#include "linux_dirent64.h"
-
-#include <dirent.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-enum fuse_dirents_type_e
-{
-  UNSET = 0,
-  NORMAL,
-  PLUS
-};
-typedef enum fuse_dirents_type_e fuse_dirents_type_t;
-
-typedef struct fuse_dirents_t fuse_dirents_t;
-struct fuse_dirents_t
-{
-  kvec_t(char)        data;
-  kvec_t(uint32_t)    offs;
-  fuse_dirents_type_t type;
-};
-
-int  fuse_dirents_init(fuse_dirents_t *d);
-void fuse_dirents_free(fuse_dirents_t *d);
-void fuse_dirents_reset(fuse_dirents_t *d);
-
-int  fuse_dirents_add(fuse_dirents_t      *d,
-                      const struct dirent *de,
-                      const uint64_t       namelen);
-int  fuse_dirents_add_plus(fuse_dirents_t      *d,
-                           const struct dirent *de,
-                           const uint64_t       namelen,
-                           const fuse_entry_t  *entry,
-                           const struct stat   *st);
-int  fuse_dirents_add_linux(fuse_dirents_t         *d,
-                            const linux_dirent64_t *de,
-                            const uint64_t          namelen);
-int  fuse_dirents_add_linux_plus(fuse_dirents_t         *d,
-                                 const linux_dirent64_t *de,
-                                 const uint64_t          namelen,
-                                 const fuse_entry_t     *entry,
-                                 const struct stat      *st);
-
-void *fuse_dirents_find(fuse_dirents_t *d,
-                        const uint64_t  ino);
-
-int fuse_dirents_convert_plus2normal(fuse_dirents_t *d);
-
-EXTERN_C_END

libfuse/include/linux_dirent64.h

@@ -1,16 +0,0 @@
-#pragma once
-
-#include <stdint.h>
-#include <string.h>
-
-#define DIRENT_NAMELEN(X) (strlen((X)->name))
-
-typedef struct linux_dirent64_t linux_dirent64_t;
-struct linux_dirent64_t
-{
-  uint64_t ino;
-  int64_t  off;
-  uint16_t reclen;
-  uint8_t  type;
-  char     name[];
-};

libfuse/include/thread_pool.hpp

@@ -1,318 +0,0 @@
-#pragma once
-
-#include "moodycamel/blockingconcurrentqueue.h"
-
-#include <algorithm>
-#include <atomic>
-#include <csignal>
-#include <cstring>
-#include <future>
-#include <memory>
-#include <mutex>
-#include <stdexcept>
-#include <string>
-#include <thread>
-#include <vector>
-
-#include <syslog.h>
-
-
-struct ThreadPoolTraits : public moodycamel::ConcurrentQueueDefaultTraits
-{
-  static const int MAX_SEMA_SPINS = 1;
-};
-
-
-class ThreadPool
-{
-private:
-  using Func  = std::function<void(void)>;
-  using Queue = moodycamel::BlockingConcurrentQueue<Func,ThreadPoolTraits>;
-
-public:
-  explicit
-  ThreadPool(unsigned const thread_count_    = std::thread::hardware_concurrency(),
-             unsigned const max_queue_depth_ = std::thread::hardware_concurrency(),
-             std::string const name_         = {})
-    : _queue(),
-      _queue_depth(0),
-      _max_queue_depth(std::max(thread_count_,max_queue_depth_)),
-      _name(name_)
-  {
-    syslog(LOG_DEBUG,
-           "threadpool (%s): spawning %u threads w/ max queue depth %u%s",
-           _name.c_str(),
-           thread_count_,
-           _max_queue_depth,
-           ((_max_queue_depth != max_queue_depth_) ? " (adjusted)" : ""));
-
-    sigset_t oldset;
-    sigset_t newset;
-
-    sigfillset(&newset);
-    pthread_sigmask(SIG_BLOCK,&newset,&oldset);
-
-    _threads.reserve(thread_count_);
-    for(std::size_t i = 0; i < thread_count_; ++i)
-      {
-        int rv;
-        pthread_t t;
-
-        rv = pthread_create(&t,NULL,ThreadPool::start_routine,this);
-        if(rv != 0)
-          {
-            syslog(LOG_WARNING,
-                   "threadpool (%s): error spawning thread - %d (%s)",
-                   _name.c_str(),
-                   rv,
-                   strerror(rv));
-            continue;
-          }
-
-        if(!_name.empty())
-          pthread_setname_np(t,_name.c_str());
-
-        _threads.push_back(t);
-      }
-
-    pthread_sigmask(SIG_SETMASK,&oldset,NULL);
-
-    if(_threads.empty())
-      throw std::runtime_error("threadpool: failed to spawn any threads");
-  }
-
-  ~ThreadPool()
-  {
-    syslog(LOG_DEBUG,
-           "threadpool (%s): destroying %lu threads",
-           _name.c_str(),
-           _threads.size());
-
-    auto func = []() { pthread_exit(NULL); };
-    for(std::size_t i = 0; i < _threads.size(); i++)
-      _queue.enqueue(func);
-
-    for(auto t : _threads)
-      pthread_cancel(t);
-
-    for(auto t : _threads)
-      pthread_join(t,NULL);
-  }
-
-private:
-  static
-  void*
-  start_routine(void *arg_)
-  {
-    ThreadPool *btp = static_cast<ThreadPool*>(arg_);
-    ThreadPool::Func func;
-    ThreadPool::Queue &q = btp->_queue;
-    std::atomic<unsigned> &queue_depth = btp->_queue_depth;
-    moodycamel::ConsumerToken ctok(btp->_queue);
-
-    while(true)
-      {
-        q.wait_dequeue(ctok,func);
-
-        func();
-
-        queue_depth.fetch_sub(1,std::memory_order_release);
-      }
-
-    return NULL;
-  }
-
-public:
-  int
-  add_thread(std::string const name_ = {})
-  {
-    int rv;
-    pthread_t t;
-    sigset_t oldset;
-    sigset_t newset;
-    std::string name;
-
-    name = (name_.empty() ? _name : name_);
-
-    sigfillset(&newset);
-    pthread_sigmask(SIG_BLOCK,&newset,&oldset);
-    rv = pthread_create(&t,NULL,ThreadPool::start_routine,this);
-    pthread_sigmask(SIG_SETMASK,&oldset,NULL);
-
-    if(rv != 0)
-      {
-        syslog(LOG_WARNING,
-               "threadpool (%s): error spawning thread - %d (%s)",
-               _name.c_str(),
-               rv,
-               strerror(rv));
-        return -rv;
-      }
-
-    if(!name.empty())
-      pthread_setname_np(t,name.c_str());
-
-    {
-      std::lock_guard<std::mutex> lg(_threads_mutex);
-      _threads.push_back(t);
-    }
-
-    syslog(LOG_DEBUG,
-           "threadpool (%s): 1 thread added named '%s'",
-           _name.c_str(),
-           name.c_str());
-
-    return 0;
-  }
-
-  int
-  remove_thread(void)
-  {
-    {
-      std::lock_guard<std::mutex> lg(_threads_mutex);
-      if(_threads.size() <= 1)
-        return -EINVAL;
-    }
-
-    std::promise<pthread_t> promise;
-    auto func = [&]()
-    {
-      pthread_t t;
-
-      t = pthread_self();
-      promise.set_value(t);
-
-      {
-        std::lock_guard<std::mutex> lg(_threads_mutex);
-
-        for(auto i = _threads.begin(); i != _threads.end(); ++i)
-          {
-            if(*i != t)
-              continue;
-
-            _threads.erase(i);
-            break;
-          }
-      }
-
-      syslog(LOG_DEBUG,
-             "threadpool (%s): 1 thread removed",
-             _name.c_str());
-
-      pthread_exit(NULL);
-    };
-
-    enqueue_work(func);
-    pthread_join(promise.get_future().get(),NULL);
-
-    return 0;
-  }
-
-  int
-  set_threads(std::size_t const count_)
-  {
-    int diff;
-    {
-      std::lock_guard<std::mutex> lg(_threads_mutex);
-
-      diff = ((int)count_ - (int)_threads.size());
-    }
-
-    for(auto i = diff; i > 0; --i)
-      add_thread();
-    for(auto i = diff; i < 0; ++i)
-      remove_thread();
-
-    return diff;
-  }
-
-public:
-  template<typename FuncType>
-  void
-  enqueue_work(moodycamel::ProducerToken  &ptok_,
-               FuncType                  &&f_)
-  {
-    timespec ts = {0,1000};
-    for(unsigned i = 0; i < 1000000; i++)
-      {
-        if(_queue_depth.load(std::memory_order_acquire) < _max_queue_depth)
-          break;
-        ::nanosleep(&ts,NULL);
-      }
-
-    _queue.enqueue(ptok_,f_);
-    _queue_depth.fetch_add(1,std::memory_order_release);
-  }
-
-  template<typename FuncType>
-  void
-  enqueue_work(FuncType &&f_)
-  {
-    timespec ts = {0,1000};
-    for(unsigned i = 0; i < 1000000; i++)
-      {
-        if(_queue_depth.load(std::memory_order_acquire) < _max_queue_depth)
-          break;
-        ::nanosleep(&ts,NULL);
-      }
-
-    _queue.enqueue(f_);
-    _queue_depth.fetch_add(1,std::memory_order_release);
-  }
-
-  template<typename FuncType>
-  [[nodiscard]]
-  std::future<typename std::result_of<FuncType()>::type>
-  enqueue_task(FuncType&& f_)
-  {
-    using TaskReturnType = typename std::result_of<FuncType()>::type;
-    using Promise        = std::promise<TaskReturnType>;
-
-    auto promise = std::make_shared<Promise>();
-    auto future  = promise->get_future();
-
-    auto work = [=]()
-    {
-      auto rv = f_();
-      promise->set_value(rv);
-    };
-
-    timespec ts = {0,1000};
-    for(unsigned i = 0; i < 1000000; i++)
-      {
-        if(_queue_depth.load(std::memory_order_acquire) < _max_queue_depth)
-          break;
-        ::nanosleep(&ts,NULL);
-      }
-
-    _queue.enqueue(work);
-    _queue_depth.fetch_add(1,std::memory_order_release);
-
-    return future;
-  }
-
-public:
-  std::vector<pthread_t>
-  threads() const
-  {
-    std::lock_guard<std::mutex> lg(_threads_mutex);
-
-    return _threads;
-  }
-
-  moodycamel::ProducerToken
-  ptoken()
-  {
-    return moodycamel::ProducerToken(_queue);
-  }
-
-private:
-  Queue _queue;
-  std::atomic<unsigned> _queue_depth;
-  unsigned const        _max_queue_depth;
-
-private:
-  std::string const      _name;
-  std::vector<pthread_t> _threads;
-  mutable std::mutex     _threads_mutex;
-};

libfuse/lib/buffer.c

@@ -1,317 +0,0 @@
-/*
-  FUSE: Filesystem in Userspace
-  Copyright (C) 2010  Miklos Szeredi <miklos@szeredi.hu>
-
-  This program can be distributed under the terms of the GNU LGPLv2.
-  See the file COPYING.LIB
-*/
-
-#define _GNU_SOURCE
-
-#include "config.h"
-#include "fuse_i.h"
-#include "fuse_lowlevel.h"
-#include <string.h>
-#include <unistd.h>
-#include <errno.h>
-#include <assert.h>
-
-size_t fuse_buf_size(const struct fuse_bufvec *bufv)
-{
-  size_t i;
-  size_t size = 0;
-
-  for (i = 0; i < bufv->count; i++) {
-    if (bufv->buf[i].size == SIZE_MAX)
-      size = SIZE_MAX;
-    else
-      size += bufv->buf[i].size;
-  }
-
-  return size;
-}
-
-static size_t min_size(size_t s1, size_t s2)
-{
-  return s1 < s2 ? s1 : s2;
-}
-
-static ssize_t fuse_buf_write(const struct fuse_buf *dst, size_t dst_off,
-			      const struct fuse_buf *src, size_t src_off,
-			      size_t len)
-{
-  ssize_t res = 0;
-  size_t copied = 0;
-
-  while (len) {
-    if (dst->flags & FUSE_BUF_FD_SEEK) {
-      res = pwrite(dst->fd, src->mem + src_off, len,
-                   dst->pos + dst_off);
-    } else {
-      res = write(dst->fd, src->mem + src_off, len);
-    }
-    if (res == -1) {
-      if (!copied)
-        return -errno;
-      break;
-    }
-    if (res == 0)
-      break;
-
-    copied += res;
-    if (!(dst->flags & FUSE_BUF_FD_RETRY))
-      break;
-
-    src_off += res;
-    dst_off += res;
-    len -= res;
-  }
-
-  return copied;
-}
-
-static ssize_t fuse_buf_read(const struct fuse_buf *dst, size_t dst_off,
-			     const struct fuse_buf *src, size_t src_off,
-			     size_t len)
-{
-  ssize_t res = 0;
-  size_t copied = 0;
-
-  while (len) {
-    if (src->flags & FUSE_BUF_FD_SEEK) {
-      res = pread(src->fd, dst->mem + dst_off, len,
-                  src->pos + src_off);
-    } else {
-      res = read(src->fd, dst->mem + dst_off, len);
-    }
-    if (res == -1) {
-      if (!copied)
-        return -errno;
-      break;
-    }
-    if (res == 0)
-      break;
-
-    copied += res;
-    if (!(src->flags & FUSE_BUF_FD_RETRY))
-      break;
-
-    dst_off += res;
-    src_off += res;
-    len -= res;
-  }
-
-  return copied;
-}
-
-static ssize_t fuse_buf_fd_to_fd(const struct fuse_buf *dst, size_t dst_off,
-				 const struct fuse_buf *src, size_t src_off,
-				 size_t len)
-{
-  char buf[4096];
-  struct fuse_buf tmp = {
-    .size = sizeof(buf),
-    .flags = 0,
-  };
-  ssize_t res;
-  size_t copied = 0;
-
-  tmp.mem = buf;
-
-  while (len) {
-    size_t this_len = min_size(tmp.size, len);
-    size_t read_len;
-
-    res = fuse_buf_read(&tmp, 0, src, src_off, this_len);
-    if (res < 0) {
-      if (!copied)
-        return res;
-      break;
-    }
-    if (res == 0)
-      break;
-
-    read_len = res;
-    res = fuse_buf_write(dst, dst_off, &tmp, 0, read_len);
-    if (res < 0) {
-      if (!copied)
-        return res;
-      break;
-    }
-    if (res == 0)
-      break;
-
-    copied += res;
-
-    if (res < this_len)
-      break;
-
-    dst_off += res;
-    src_off += res;
-    len -= res;
-  }
-
-  return copied;
-}
-
-#ifdef HAVE_SPLICE
-static ssize_t fuse_buf_splice(const struct fuse_buf *dst, size_t dst_off,
-			       const struct fuse_buf *src, size_t src_off,
-			       size_t len, enum fuse_buf_copy_flags flags)
-{
-  int splice_flags = 0;
-  off_t *srcpos = NULL;
-  off_t *dstpos = NULL;
-  off_t srcpos_val;
-  off_t dstpos_val;
-  ssize_t res;
-  size_t copied = 0;
-
-  if (flags & FUSE_BUF_SPLICE_MOVE)
-    splice_flags |= SPLICE_F_MOVE;
-  if (flags & FUSE_BUF_SPLICE_NONBLOCK)
-    splice_flags |= SPLICE_F_NONBLOCK;
-
-  if (src->flags & FUSE_BUF_FD_SEEK) {
-    srcpos_val = src->pos + src_off;
-    srcpos = &srcpos_val;
-  }
-  if (dst->flags & FUSE_BUF_FD_SEEK) {
-    dstpos_val = dst->pos + dst_off;
-    dstpos = &dstpos_val;
-  }
-
-  while (len) {
-    res = splice(src->fd, srcpos, dst->fd, dstpos, len, splice_flags);
-    if (res == -1) {
-      if (copied)
-        break;
-
-      if (errno != EINVAL || (flags & FUSE_BUF_FORCE_SPLICE))
-        return -errno;
-
-      /* Maybe splice is not supported for this combination */
-      return fuse_buf_fd_to_fd(dst, dst_off, src, src_off,
-                               len);
-    }
-    if (res == 0)
-      break;
-
-    copied += res;
-    if (!(src->flags & FUSE_BUF_FD_RETRY) &&
-        !(dst->flags & FUSE_BUF_FD_RETRY)) {
-      break;
-    }
-
-    len -= res;
-  }
-
-  return copied;
-}
-#else
-static ssize_t fuse_buf_splice(const struct fuse_buf *dst, size_t dst_off,
-			       const struct fuse_buf *src, size_t src_off,
-			       size_t len, enum fuse_buf_copy_flags flags)
-{
-  (void) flags;
-
-  return fuse_buf_fd_to_fd(dst, dst_off, src, src_off, len);
-}
-#endif
-
-
-static ssize_t fuse_buf_copy_one(const struct fuse_buf *dst, size_t dst_off,
-				 const struct fuse_buf *src, size_t src_off,
-				 size_t len, enum fuse_buf_copy_flags flags)
-{
-  int src_is_fd = src->flags & FUSE_BUF_IS_FD;
-  int dst_is_fd = dst->flags & FUSE_BUF_IS_FD;
-
-  if (!src_is_fd && !dst_is_fd) {
-    char *dstmem = dst->mem + dst_off;
-    char *srcmem = src->mem + src_off;
-
-    if (dstmem != srcmem) {
-      if (dstmem + len <= srcmem || srcmem + len <= dstmem)
-        memcpy(dstmem, srcmem, len);
-      else
-        memmove(dstmem, srcmem, len);
-    }
-
-    return len;
-  } else if (!src_is_fd) {
-    return fuse_buf_write(dst, dst_off, src, src_off, len);
-  } else if (!dst_is_fd) {
-    return fuse_buf_read(dst, dst_off, src, src_off, len);
-  } else if (flags & FUSE_BUF_NO_SPLICE) {
-    return fuse_buf_fd_to_fd(dst, dst_off, src, src_off, len);
-  } else {
-    return fuse_buf_splice(dst, dst_off, src, src_off, len, flags);
-  }
-}
-
-static const struct fuse_buf *fuse_bufvec_current(struct fuse_bufvec *bufv)
-{
-  if (bufv->idx < bufv->count)
-    return &bufv->buf[bufv->idx];
-  else
-    return NULL;
-}
-
-static int fuse_bufvec_advance(struct fuse_bufvec *bufv, size_t len)
-{
-  const struct fuse_buf *buf = fuse_bufvec_current(bufv);
-
-  bufv->off += len;
-  assert(bufv->off <= buf->size);
-  if (bufv->off == buf->size) {
-    assert(bufv->idx < bufv->count);
-    bufv->idx++;
-    if (bufv->idx == bufv->count)
-      return 0;
-    bufv->off = 0;
-  }
-  return 1;
-}
-
-ssize_t fuse_buf_copy(struct fuse_bufvec *dstv, struct fuse_bufvec *srcv,
-		      enum fuse_buf_copy_flags flags)
-{
-  size_t copied = 0;
-
-  if (dstv == srcv)
-    return fuse_buf_size(dstv);
-
-  for (;;) {
-    const struct fuse_buf *src = fuse_bufvec_current(srcv);
-    const struct fuse_buf *dst = fuse_bufvec_current(dstv);
-    size_t src_len;
-    size_t dst_len;
-    size_t len;
-    ssize_t res;
-
-    if (src == NULL || dst == NULL)
-      break;
-
-    src_len = src->size - srcv->off;
-    dst_len = dst->size - dstv->off;
-    len = min_size(src_len, dst_len);
-
-    res = fuse_buf_copy_one(dst, dstv->off, src, srcv->off, len, flags);
-    if (res < 0) {
-      if (!copied)
-        return res;
-      break;
-    }
-    copied += res;
-
-    if (!fuse_bufvec_advance(srcv, res) ||
-        !fuse_bufvec_advance(dstv, res))
-      break;
-
-    if (res < len)
-      break;
-  }
-
-  return copied;
-}

libfuse/lib/fmp.h

@@ -1,380 +0,0 @@
-/*
-  ISC License
-
-  Copyright (c) 2021, Antonio SJ Musumeci <trapexit@spawn.link>
-
-  Permission to use, copy, modify, and/or distribute this software for any
-  purpose with or without fee is hereby granted, provided that the above
-  copyright notice and this permission notice appear in all copies.
-
-  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-*/
-
-#pragma once
-
-#include "kvec.h"
-
-#include <errno.h>
-#include <stdint.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/mman.h>
-#include <unistd.h>
-
-#define ROUND_UP(N,S) ((((N) + (S) - 1) / (S)) * (S))
-
-typedef kvec_t(void*) slab_kvec_t;
-
-typedef struct mem_stack_t mem_stack_t;
-struct mem_stack_t
-{
-  mem_stack_t *next;
-};
-
-typedef struct fmp_t fmp_t;
-struct fmp_t
-{
-  mem_stack_t *objs;
-  slab_kvec_t  slabs;
-  uint64_t     avail_objs;
-  uint64_t     obj_size;
-  uint64_t     page_size;
-  uint64_t     slab_size;
-};
-
-static
-inline
-uint64_t
-fmp_page_size()
-{
-  return sysconf(_SC_PAGESIZE);
-}
-
-static
-inline
-void
-fmp_init(fmp_t          *fmp_,
-         const uint64_t  obj_size_,
-         const uint64_t  page_multiple_)
-{
-  kv_init(fmp_->slabs);
-  fmp_->objs       = NULL;
-  fmp_->avail_objs = 0;
-  fmp_->obj_size   = ROUND_UP(obj_size_,sizeof(void*));
-  fmp_->page_size  = fmp_page_size();
-  fmp_->slab_size  = (fmp_->page_size * page_multiple_);
-}
-
-static
-inline
-uint64_t
-fmp_slab_count(fmp_t *fmp_)
-{
-  return kv_size(fmp_->slabs);
-}
-
-static
-inline
-void*
-fmp_slab_alloc_posix_memalign(fmp_t *fmp_)
-{
-  int rv;
-  void *mem;
-  const size_t alignment = fmp_->page_size;
-  const size_t size      = fmp_->slab_size;
-
-  rv = posix_memalign(&mem,alignment,size);
-  if(rv != 0)
-    return NULL;
-
-  return NULL;
-}
-
-static
-inline
-void*
-fmp_slab_alloc_mmap(fmp_t *fmp_)
-{
-  void         *mem;
-  void         *address = NULL;
-  const size_t  length  = fmp_->slab_size;
-  const int     protect = PROT_READ|PROT_WRITE;
-  const int     flags   = MAP_PRIVATE|MAP_ANONYMOUS;
-  const int     filedes = -1;
-  const off_t   offset  = 0;
-
-  mem = mmap(address,length,protect,flags,filedes,offset);
-  if(mem == MAP_FAILED)
-    return NULL;
-
-  return mem;
-}
-
-static
-inline
-void
-fmp_slab_free_posix_memalign(fmp_t*  fmp_,
-                             void   *mem_)
-{
-  (void)fmp_;
-  free(mem_);
-}
-
-static
-inline
-void
-fmp_slab_free_mmap(fmp_t*  fmp_,
-                   void   *mem_)
-{
-  void   *addr   = mem_;
-  size_t  length = fmp_->slab_size;
-
-  (void)munmap(addr,length);
-}
-
-static
-inline
-int
-fmp_slab_alloc(fmp_t *fmp_)
-{
-  char *i;
-  void *mem;
-
-  mem = fmp_slab_alloc_mmap(fmp_);
-  if(mem == NULL)
-    return -ENOMEM;
-
-  kv_push(void*,fmp_->slabs,mem);
-
-  i = ((char*)mem + fmp_->slab_size - fmp_->obj_size);
-  while(i >= (char*)mem)
-    {
-      mem_stack_t *obj = (mem_stack_t*)i;
-
-      obj->next  = fmp_->objs;
-      fmp_->objs = obj;
-      fmp_->avail_objs++;
-
-      i -= fmp_->obj_size;
-    }
-
-  return 0;
-}
-
-static
-inline
-void*
-fmp_alloc(fmp_t *fmp_)
-{
-  void *rv;
-
-  if(fmp_->objs == NULL)
-    fmp_slab_alloc(fmp_);
-  if(fmp_->objs == NULL)
-    return NULL;
-
-  rv = fmp_->objs;
-
-  fmp_->objs = fmp_->objs->next;
-  fmp_->avail_objs--;
-
-  return rv;
-}
-
-static
-inline
-void*
-fmp_calloc(fmp_t *fmp_)
-{
-  void *obj;
-
-  obj = fmp_alloc(fmp_);
-  if(obj == NULL)
-    return NULL;
-
-  memset(obj,0,fmp_->obj_size);
-
-  return obj;
-}
-
-static
-inline
-void
-fmp_free(fmp_t *fmp_,
-         void  *obj_)
-{
-  mem_stack_t *obj = (mem_stack_t*)obj_;
-
-  obj->next  = fmp_->objs;
-  fmp_->objs = obj;
-  fmp_->avail_objs++;
-}
-
-static
-inline
-void
-fmp_clear(fmp_t *fmp_)
-{
-  while(kv_size(fmp_->slabs))
-    {
-      void *slab = kv_pop(fmp_->slabs);
-
-      fmp_slab_free_mmap(fmp_,slab);
-    }
-
-  fmp_->objs       = NULL;
-  fmp_->avail_objs = 0;
-}
-
-static
-inline
-void
-fmp_destroy(fmp_t *fmp_)
-{
-  fmp_clear(fmp_);
-  kv_destroy(fmp_->slabs);
-}
-
-static
-inline
-uint64_t
-fmp_avail_objs(fmp_t *fmp_)
-{
-  return fmp_->avail_objs;
-}
-
-static
-inline
-uint64_t
-fmp_objs_per_slab(fmp_t *fmp_)
-{
-  return (fmp_->slab_size / fmp_->obj_size);
-}
-
-static
-inline
-uint64_t
-fmp_objs_in_slab(fmp_t *fmp_,
-                 void  *slab_)
-{
-  char *slab;
-  uint64_t objs_per_slab;
-  uint64_t objs_in_slab;
-
-  slab          = (char*)slab_;
-  objs_in_slab  = 0;
-  objs_per_slab = fmp_objs_per_slab(fmp_);
-  for(mem_stack_t *stack = fmp_->objs; stack != NULL; stack = stack->next)
-    {
-      char *obj = (char*)stack;
-      if((obj >= slab) && (obj < (slab + fmp_->slab_size)))
-        objs_in_slab++;
-      if(objs_in_slab >= objs_per_slab)
-        break;
-    }
-
-  return objs_in_slab;
-}
-
-static
-inline
-void
-fmp_remove_objs_in_slab(fmp_t *fmp_,
-                        void  *slab_)
-{
-  char *slab;
-  uint64_t objs_per_slab;
-  uint64_t objs_in_slab;
-  mem_stack_t **p;
-
-  p             = &fmp_->objs;
-  slab          = (char*)slab_;
-  objs_in_slab  = 0;
-  objs_per_slab = fmp_objs_per_slab(fmp_);
-  while((*p) != NULL)
-    {
-      char *obj = (char*)*p;
-
-      if((obj >= slab) && (obj < (slab + fmp_->slab_size)))
-        {
-          objs_in_slab++;
-          *p = (*p)->next;
-          fmp_->avail_objs--;
-
-          if(objs_in_slab >= objs_per_slab)
-            break;
-          continue;
-        }
-
-      p = &(*p)->next;
-    }
-}
-
-static
-inline
-int
-fmp_gc_slab(fmp_t    *fmp_,
-            uint64_t  slab_idx_)
-{
-  char *slab;
-  uint64_t objs_in_slab;
-  uint64_t objs_per_slab;
-
-  slab_idx_ = (slab_idx_ % kv_size(fmp_->slabs));
-
-  slab = kv_A(fmp_->slabs,slab_idx_);
-
-  objs_per_slab = fmp_objs_per_slab(fmp_);
-  objs_in_slab  = fmp_objs_in_slab(fmp_,slab);
-  if(objs_in_slab != objs_per_slab)
-    return 0;
-
-  fmp_remove_objs_in_slab(fmp_,slab);
-  kv_delete(fmp_->slabs,slab_idx_);
-  fmp_slab_free_mmap(fmp_,slab);
-
-  return 1;
-}
-
-
-static
-inline
-int
-fmp_gc(fmp_t *fmp_)
-{
-  uint64_t slab_idx;
-
-  slab_idx = rand();
-
-  return fmp_gc_slab(fmp_,slab_idx);
-}
-
-static
-inline
-double
-fmp_slab_usage_ratio(fmp_t *fmp_)
-{
-  double avail_objs;
-  double objs_per_slab;
-  double nums_of_slabs;
-
-  avail_objs    = fmp_->avail_objs;
-  objs_per_slab = fmp_objs_per_slab(fmp_);
-  nums_of_slabs = kv_size(fmp_->slabs);
-
-  return (avail_objs / (objs_per_slab * nums_of_slabs));
-}
-
-static
-inline
-uint64_t
-fmp_total_allocated_memory(fmp_t *fmp_)
-{
-  return (fmp_->slab_size * kv_size(fmp_->slabs));
-}

libfuse/lib/fmt/color.h

@@ -1,651 +0,0 @@
-// Formatting library for C++ - color support
-//
-// Copyright (c) 2018 - present, Victor Zverovich and fmt contributors
-// All rights reserved.
-//
-// For the license information refer to format.h.
-
-#ifndef FMT_COLOR_H_
-#define FMT_COLOR_H_
-
-#include "format.h"
-
-FMT_BEGIN_NAMESPACE
-FMT_MODULE_EXPORT_BEGIN
-
-enum class color : uint32_t {
-  alice_blue = 0xF0F8FF,               // rgb(240,248,255)
-  antique_white = 0xFAEBD7,            // rgb(250,235,215)
-  aqua = 0x00FFFF,                     // rgb(0,255,255)
-  aquamarine = 0x7FFFD4,               // rgb(127,255,212)
-  azure = 0xF0FFFF,                    // rgb(240,255,255)
-  beige = 0xF5F5DC,                    // rgb(245,245,220)
-  bisque = 0xFFE4C4,                   // rgb(255,228,196)
-  black = 0x000000,                    // rgb(0,0,0)
-  blanched_almond = 0xFFEBCD,          // rgb(255,235,205)
-  blue = 0x0000FF,                     // rgb(0,0,255)
-  blue_violet = 0x8A2BE2,              // rgb(138,43,226)
-  brown = 0xA52A2A,                    // rgb(165,42,42)
-  burly_wood = 0xDEB887,               // rgb(222,184,135)
-  cadet_blue = 0x5F9EA0,               // rgb(95,158,160)
-  chartreuse = 0x7FFF00,               // rgb(127,255,0)
-  chocolate = 0xD2691E,                // rgb(210,105,30)
-  coral = 0xFF7F50,                    // rgb(255,127,80)
-  cornflower_blue = 0x6495ED,          // rgb(100,149,237)
-  cornsilk = 0xFFF8DC,                 // rgb(255,248,220)
-  crimson = 0xDC143C,                  // rgb(220,20,60)
-  cyan = 0x00FFFF,                     // rgb(0,255,255)
-  dark_blue = 0x00008B,                // rgb(0,0,139)
-  dark_cyan = 0x008B8B,                // rgb(0,139,139)
-  dark_golden_rod = 0xB8860B,          // rgb(184,134,11)
-  dark_gray = 0xA9A9A9,                // rgb(169,169,169)
-  dark_green = 0x006400,               // rgb(0,100,0)
-  dark_khaki = 0xBDB76B,               // rgb(189,183,107)
-  dark_magenta = 0x8B008B,             // rgb(139,0,139)
-  dark_olive_green = 0x556B2F,         // rgb(85,107,47)
-  dark_orange = 0xFF8C00,              // rgb(255,140,0)
-  dark_orchid = 0x9932CC,              // rgb(153,50,204)
-  dark_red = 0x8B0000,                 // rgb(139,0,0)
-  dark_salmon = 0xE9967A,              // rgb(233,150,122)
-  dark_sea_green = 0x8FBC8F,           // rgb(143,188,143)
-  dark_slate_blue = 0x483D8B,          // rgb(72,61,139)
-  dark_slate_gray = 0x2F4F4F,          // rgb(47,79,79)
-  dark_turquoise = 0x00CED1,           // rgb(0,206,209)
-  dark_violet = 0x9400D3,              // rgb(148,0,211)
-  deep_pink = 0xFF1493,                // rgb(255,20,147)
-  deep_sky_blue = 0x00BFFF,            // rgb(0,191,255)
-  dim_gray = 0x696969,                 // rgb(105,105,105)
-  dodger_blue = 0x1E90FF,              // rgb(30,144,255)
-  fire_brick = 0xB22222,               // rgb(178,34,34)
-  floral_white = 0xFFFAF0,             // rgb(255,250,240)
-  forest_green = 0x228B22,             // rgb(34,139,34)
-  fuchsia = 0xFF00FF,                  // rgb(255,0,255)
-  gainsboro = 0xDCDCDC,                // rgb(220,220,220)
-  ghost_white = 0xF8F8FF,              // rgb(248,248,255)
-  gold = 0xFFD700,                     // rgb(255,215,0)
-  golden_rod = 0xDAA520,               // rgb(218,165,32)
-  gray = 0x808080,                     // rgb(128,128,128)
-  green = 0x008000,                    // rgb(0,128,0)
-  green_yellow = 0xADFF2F,             // rgb(173,255,47)
-  honey_dew = 0xF0FFF0,                // rgb(240,255,240)
-  hot_pink = 0xFF69B4,                 // rgb(255,105,180)
-  indian_red = 0xCD5C5C,               // rgb(205,92,92)
-  indigo = 0x4B0082,                   // rgb(75,0,130)
-  ivory = 0xFFFFF0,                    // rgb(255,255,240)
-  khaki = 0xF0E68C,                    // rgb(240,230,140)
-  lavender = 0xE6E6FA,                 // rgb(230,230,250)
-  lavender_blush = 0xFFF0F5,           // rgb(255,240,245)
-  lawn_green = 0x7CFC00,               // rgb(124,252,0)
-  lemon_chiffon = 0xFFFACD,            // rgb(255,250,205)
-  light_blue = 0xADD8E6,               // rgb(173,216,230)
-  light_coral = 0xF08080,              // rgb(240,128,128)
-  light_cyan = 0xE0FFFF,               // rgb(224,255,255)
-  light_golden_rod_yellow = 0xFAFAD2,  // rgb(250,250,210)
-  light_gray = 0xD3D3D3,               // rgb(211,211,211)
-  light_green = 0x90EE90,              // rgb(144,238,144)
-  light_pink = 0xFFB6C1,               // rgb(255,182,193)
-  light_salmon = 0xFFA07A,             // rgb(255,160,122)
-  light_sea_green = 0x20B2AA,          // rgb(32,178,170)
-  light_sky_blue = 0x87CEFA,           // rgb(135,206,250)
-  light_slate_gray = 0x778899,         // rgb(119,136,153)
-  light_steel_blue = 0xB0C4DE,         // rgb(176,196,222)
-  light_yellow = 0xFFFFE0,             // rgb(255,255,224)
-  lime = 0x00FF00,                     // rgb(0,255,0)
-  lime_green = 0x32CD32,               // rgb(50,205,50)
-  linen = 0xFAF0E6,                    // rgb(250,240,230)
-  magenta = 0xFF00FF,                  // rgb(255,0,255)
-  maroon = 0x800000,                   // rgb(128,0,0)
-  medium_aquamarine = 0x66CDAA,        // rgb(102,205,170)
-  medium_blue = 0x0000CD,              // rgb(0,0,205)
-  medium_orchid = 0xBA55D3,            // rgb(186,85,211)
-  medium_purple = 0x9370DB,            // rgb(147,112,219)
-  medium_sea_green = 0x3CB371,         // rgb(60,179,113)
-  medium_slate_blue = 0x7B68EE,        // rgb(123,104,238)
-  medium_spring_green = 0x00FA9A,      // rgb(0,250,154)
-  medium_turquoise = 0x48D1CC,         // rgb(72,209,204)
-  medium_violet_red = 0xC71585,        // rgb(199,21,133)
-  midnight_blue = 0x191970,            // rgb(25,25,112)
-  mint_cream = 0xF5FFFA,               // rgb(245,255,250)
-  misty_rose = 0xFFE4E1,               // rgb(255,228,225)
-  moccasin = 0xFFE4B5,                 // rgb(255,228,181)
-  navajo_white = 0xFFDEAD,             // rgb(255,222,173)
-  navy = 0x000080,                     // rgb(0,0,128)
-  old_lace = 0xFDF5E6,                 // rgb(253,245,230)
-  olive = 0x808000,                    // rgb(128,128,0)
-  olive_drab = 0x6B8E23,               // rgb(107,142,35)
-  orange = 0xFFA500,                   // rgb(255,165,0)
-  orange_red = 0xFF4500,               // rgb(255,69,0)
-  orchid = 0xDA70D6,                   // rgb(218,112,214)
-  pale_golden_rod = 0xEEE8AA,          // rgb(238,232,170)
-  pale_green = 0x98FB98,               // rgb(152,251,152)
-  pale_turquoise = 0xAFEEEE,           // rgb(175,238,238)
-  pale_violet_red = 0xDB7093,          // rgb(219,112,147)
-  papaya_whip = 0xFFEFD5,              // rgb(255,239,213)
-  peach_puff = 0xFFDAB9,               // rgb(255,218,185)
-  peru = 0xCD853F,                     // rgb(205,133,63)
-  pink = 0xFFC0CB,                     // rgb(255,192,203)
-  plum = 0xDDA0DD,                     // rgb(221,160,221)
-  powder_blue = 0xB0E0E6,              // rgb(176,224,230)
-  purple = 0x800080,                   // rgb(128,0,128)
-  rebecca_purple = 0x663399,           // rgb(102,51,153)
-  red = 0xFF0000,                      // rgb(255,0,0)
-  rosy_brown = 0xBC8F8F,               // rgb(188,143,143)
-  royal_blue = 0x4169E1,               // rgb(65,105,225)
-  saddle_brown = 0x8B4513,             // rgb(139,69,19)
-  salmon = 0xFA8072,                   // rgb(250,128,114)
-  sandy_brown = 0xF4A460,              // rgb(244,164,96)
-  sea_green = 0x2E8B57,                // rgb(46,139,87)
-  sea_shell = 0xFFF5EE,                // rgb(255,245,238)
-  sienna = 0xA0522D,                   // rgb(160,82,45)
-  silver = 0xC0C0C0,                   // rgb(192,192,192)
-  sky_blue = 0x87CEEB,                 // rgb(135,206,235)
-  slate_blue = 0x6A5ACD,               // rgb(106,90,205)
-  slate_gray = 0x708090,               // rgb(112,128,144)
-  snow = 0xFFFAFA,                     // rgb(255,250,250)
-  spring_green = 0x00FF7F,             // rgb(0,255,127)
-  steel_blue = 0x4682B4,               // rgb(70,130,180)
-  tan = 0xD2B48C,                      // rgb(210,180,140)
-  teal = 0x008080,                     // rgb(0,128,128)
-  thistle = 0xD8BFD8,                  // rgb(216,191,216)
-  tomato = 0xFF6347,                   // rgb(255,99,71)
-  turquoise = 0x40E0D0,                // rgb(64,224,208)
-  violet = 0xEE82EE,                   // rgb(238,130,238)
-  wheat = 0xF5DEB3,                    // rgb(245,222,179)
-  white = 0xFFFFFF,                    // rgb(255,255,255)
-  white_smoke = 0xF5F5F5,              // rgb(245,245,245)
-  yellow = 0xFFFF00,                   // rgb(255,255,0)
-  yellow_green = 0x9ACD32              // rgb(154,205,50)
-};                                     // enum class color
-
-enum class terminal_color : uint8_t {
-  black = 30,
-  red,
-  green,
-  yellow,
-  blue,
-  magenta,
-  cyan,
-  white,
-  bright_black = 90,
-  bright_red,
-  bright_green,
-  bright_yellow,
-  bright_blue,
-  bright_magenta,
-  bright_cyan,
-  bright_white
-};
-
-enum class emphasis : uint8_t {
-  bold = 1,
-  faint = 1 << 1,
-  italic = 1 << 2,
-  underline = 1 << 3,
-  blink = 1 << 4,
-  reverse = 1 << 5,
-  conceal = 1 << 6,
-  strikethrough = 1 << 7,
-};
-
-// rgb is a struct for red, green and blue colors.
-// Using the name "rgb" makes some editors show the color in a tooltip.
-struct rgb {
-  FMT_CONSTEXPR rgb() : r(0), g(0), b(0) {}
-  FMT_CONSTEXPR rgb(uint8_t r_, uint8_t g_, uint8_t b_) : r(r_), g(g_), b(b_) {}
-  FMT_CONSTEXPR rgb(uint32_t hex)
-      : r((hex >> 16) & 0xFF), g((hex >> 8) & 0xFF), b(hex & 0xFF) {}
-  FMT_CONSTEXPR rgb(color hex)
-      : r((uint32_t(hex) >> 16) & 0xFF),
-        g((uint32_t(hex) >> 8) & 0xFF),
-        b(uint32_t(hex) & 0xFF) {}
-  uint8_t r;
-  uint8_t g;
-  uint8_t b;
-};
-
-FMT_BEGIN_DETAIL_NAMESPACE
-
-// color is a struct of either a rgb color or a terminal color.
-struct color_type {
-  FMT_CONSTEXPR color_type() noexcept : is_rgb(), value{} {}
-  FMT_CONSTEXPR color_type(color rgb_color) noexcept : is_rgb(true), value{} {
-    value.rgb_color = static_cast<uint32_t>(rgb_color);
-  }
-  FMT_CONSTEXPR color_type(rgb rgb_color) noexcept : is_rgb(true), value{} {
-    value.rgb_color = (static_cast<uint32_t>(rgb_color.r) << 16) |
-                      (static_cast<uint32_t>(rgb_color.g) << 8) | rgb_color.b;
-  }
-  FMT_CONSTEXPR color_type(terminal_color term_color) noexcept
-      : is_rgb(), value{} {
-    value.term_color = static_cast<uint8_t>(term_color);
-  }
-  bool is_rgb;
-  union color_union {
-    uint8_t term_color;
-    uint32_t rgb_color;
-  } value;
-};
-
-FMT_END_DETAIL_NAMESPACE
-
-/** A text style consisting of foreground and background colors and emphasis. */
-class text_style {
- public:
-  FMT_CONSTEXPR text_style(emphasis em = emphasis()) noexcept
-      : set_foreground_color(), set_background_color(), ems(em) {}
-
-  FMT_CONSTEXPR text_style& operator|=(const text_style& rhs) {
-    if (!set_foreground_color) {
-      set_foreground_color = rhs.set_foreground_color;
-      foreground_color = rhs.foreground_color;
-    } else if (rhs.set_foreground_color) {
-      if (!foreground_color.is_rgb || !rhs.foreground_color.is_rgb)
-        FMT_THROW(format_error("can't OR a terminal color"));
-      foreground_color.value.rgb_color |= rhs.foreground_color.value.rgb_color;
-    }
-
-    if (!set_background_color) {
-      set_background_color = rhs.set_background_color;
-      background_color = rhs.background_color;
-    } else if (rhs.set_background_color) {
-      if (!background_color.is_rgb || !rhs.background_color.is_rgb)
-        FMT_THROW(format_error("can't OR a terminal color"));
-      background_color.value.rgb_color |= rhs.background_color.value.rgb_color;
-    }
-
-    ems = static_cast<emphasis>(static_cast<uint8_t>(ems) |
-                                static_cast<uint8_t>(rhs.ems));
-    return *this;
-  }
-
-  friend FMT_CONSTEXPR text_style operator|(text_style lhs,
-                                            const text_style& rhs) {
-    return lhs |= rhs;
-  }
-
-  FMT_CONSTEXPR bool has_foreground() const noexcept {
-    return set_foreground_color;
-  }
-  FMT_CONSTEXPR bool has_background() const noexcept {
-    return set_background_color;
-  }
-  FMT_CONSTEXPR bool has_emphasis() const noexcept {
-    return static_cast<uint8_t>(ems) != 0;
-  }
-  FMT_CONSTEXPR detail::color_type get_foreground() const noexcept {
-    FMT_ASSERT(has_foreground(), "no foreground specified for this style");
-    return foreground_color;
-  }
-  FMT_CONSTEXPR detail::color_type get_background() const noexcept {
-    FMT_ASSERT(has_background(), "no background specified for this style");
-    return background_color;
-  }
-  FMT_CONSTEXPR emphasis get_emphasis() const noexcept {
-    FMT_ASSERT(has_emphasis(), "no emphasis specified for this style");
-    return ems;
-  }
-
- private:
-  FMT_CONSTEXPR text_style(bool is_foreground,
-                           detail::color_type text_color) noexcept
-      : set_foreground_color(), set_background_color(), ems() {
-    if (is_foreground) {
-      foreground_color = text_color;
-      set_foreground_color = true;
-    } else {
-      background_color = text_color;
-      set_background_color = true;
-    }
-  }
-
-  friend FMT_CONSTEXPR text_style fg(detail::color_type foreground) noexcept;
-
-  friend FMT_CONSTEXPR text_style bg(detail::color_type background) noexcept;
-
-  detail::color_type foreground_color;
-  detail::color_type background_color;
-  bool set_foreground_color;
-  bool set_background_color;
-  emphasis ems;
-};
-
-/** Creates a text style from the foreground (text) color. */
-FMT_CONSTEXPR inline text_style fg(detail::color_type foreground) noexcept {
-  return text_style(true, foreground);
-}
-
-/** Creates a text style from the background color. */
-FMT_CONSTEXPR inline text_style bg(detail::color_type background) noexcept {
-  return text_style(false, background);
-}
-
-FMT_CONSTEXPR inline text_style operator|(emphasis lhs, emphasis rhs) noexcept {
-  return text_style(lhs) | rhs;
-}
-
-FMT_BEGIN_DETAIL_NAMESPACE
-
-template <typename Char> struct ansi_color_escape {
-  FMT_CONSTEXPR ansi_color_escape(detail::color_type text_color,
-                                  const char* esc) noexcept {
-    // If we have a terminal color, we need to output another escape code
-    // sequence.
-    if (!text_color.is_rgb) {
-      bool is_background = esc == string_view("\x1b[48;2;");
-      uint32_t value = text_color.value.term_color;
-      // Background ASCII codes are the same as the foreground ones but with
-      // 10 more.
-      if (is_background) value += 10u;
-
-      size_t index = 0;
-      buffer[index++] = static_cast<Char>('\x1b');
-      buffer[index++] = static_cast<Char>('[');
-
-      if (value >= 100u) {
-        buffer[index++] = static_cast<Char>('1');
-        value %= 100u;
-      }
-      buffer[index++] = static_cast<Char>('0' + value / 10u);
-      buffer[index++] = static_cast<Char>('0' + value % 10u);
-
-      buffer[index++] = static_cast<Char>('m');
-      buffer[index++] = static_cast<Char>('\0');
-      return;
-    }
-
-    for (int i = 0; i < 7; i++) {
-      buffer[i] = static_cast<Char>(esc[i]);
-    }
-    rgb color(text_color.value.rgb_color);
-    to_esc(color.r, buffer + 7, ';');
-    to_esc(color.g, buffer + 11, ';');
-    to_esc(color.b, buffer + 15, 'm');
-    buffer[19] = static_cast<Char>(0);
-  }
-  FMT_CONSTEXPR ansi_color_escape(emphasis em) noexcept {
-    uint8_t em_codes[num_emphases] = {};
-    if (has_emphasis(em, emphasis::bold)) em_codes[0] = 1;
-    if (has_emphasis(em, emphasis::faint)) em_codes[1] = 2;
-    if (has_emphasis(em, emphasis::italic)) em_codes[2] = 3;
-    if (has_emphasis(em, emphasis::underline)) em_codes[3] = 4;
-    if (has_emphasis(em, emphasis::blink)) em_codes[4] = 5;
-    if (has_emphasis(em, emphasis::reverse)) em_codes[5] = 7;
-    if (has_emphasis(em, emphasis::conceal)) em_codes[6] = 8;
-    if (has_emphasis(em, emphasis::strikethrough)) em_codes[7] = 9;
-
-    size_t index = 0;
-    for (size_t i = 0; i < num_emphases; ++i) {
-      if (!em_codes[i]) continue;
-      buffer[index++] = static_cast<Char>('\x1b');
-      buffer[index++] = static_cast<Char>('[');
-      buffer[index++] = static_cast<Char>('0' + em_codes[i]);
-      buffer[index++] = static_cast<Char>('m');
-    }
-    buffer[index++] = static_cast<Char>(0);
-  }
-  FMT_CONSTEXPR operator const Char*() const noexcept { return buffer; }
-
-  FMT_CONSTEXPR const Char* begin() const noexcept { return buffer; }
-  FMT_CONSTEXPR_CHAR_TRAITS const Char* end() const noexcept {
-    return buffer + std::char_traits<Char>::length(buffer);
-  }
-
- private:
-  static constexpr size_t num_emphases = 8;
-  Char buffer[7u + 3u * num_emphases + 1u];
-
-  static FMT_CONSTEXPR void to_esc(uint8_t c, Char* out,
-                                   char delimiter) noexcept {
-    out[0] = static_cast<Char>('0' + c / 100);
-    out[1] = static_cast<Char>('0' + c / 10 % 10);
-    out[2] = static_cast<Char>('0' + c % 10);
-    out[3] = static_cast<Char>(delimiter);
-  }
-  static FMT_CONSTEXPR bool has_emphasis(emphasis em, emphasis mask) noexcept {
-    return static_cast<uint8_t>(em) & static_cast<uint8_t>(mask);
-  }
-};
-
-template <typename Char>
-FMT_CONSTEXPR ansi_color_escape<Char> make_foreground_color(
-    detail::color_type foreground) noexcept {
-  return ansi_color_escape<Char>(foreground, "\x1b[38;2;");
-}
-
-template <typename Char>
-FMT_CONSTEXPR ansi_color_escape<Char> make_background_color(
-    detail::color_type background) noexcept {
-  return ansi_color_escape<Char>(background, "\x1b[48;2;");
-}
-
-template <typename Char>
-FMT_CONSTEXPR ansi_color_escape<Char> make_emphasis(emphasis em) noexcept {
-  return ansi_color_escape<Char>(em);
-}
-
-template <typename Char> inline void fputs(const Char* chars, FILE* stream) {
-  int result = std::fputs(chars, stream);
-  if (result < 0)
-    FMT_THROW(system_error(errno, FMT_STRING("cannot write to file")));
-}
-
-template <> inline void fputs<wchar_t>(const wchar_t* chars, FILE* stream) {
-  int result = std::fputws(chars, stream);
-  if (result < 0)
-    FMT_THROW(system_error(errno, FMT_STRING("cannot write to file")));
-}
-
-template <typename Char> inline void reset_color(FILE* stream) {
-  fputs("\x1b[0m", stream);
-}
-
-template <> inline void reset_color<wchar_t>(FILE* stream) {
-  fputs(L"\x1b[0m", stream);
-}
-
-template <typename Char> inline void reset_color(buffer<Char>& buffer) {
-  auto reset_color = string_view("\x1b[0m");
-  buffer.append(reset_color.begin(), reset_color.end());
-}
-
-template <typename T> struct styled_arg {
-  const T& value;
-  text_style style;
-};
-
-template <typename Char>
-void vformat_to(buffer<Char>& buf, const text_style& ts,
-                basic_string_view<Char> format_str,
-                basic_format_args<buffer_context<type_identity_t<Char>>> args) {
-  bool has_style = false;
-  if (ts.has_emphasis()) {
-    has_style = true;
-    auto emphasis = detail::make_emphasis<Char>(ts.get_emphasis());
-    buf.append(emphasis.begin(), emphasis.end());
-  }
-  if (ts.has_foreground()) {
-    has_style = true;
-    auto foreground = detail::make_foreground_color<Char>(ts.get_foreground());
-    buf.append(foreground.begin(), foreground.end());
-  }
-  if (ts.has_background()) {
-    has_style = true;
-    auto background = detail::make_background_color<Char>(ts.get_background());
-    buf.append(background.begin(), background.end());
-  }
-  detail::vformat_to(buf, format_str, args, {});
-  if (has_style) detail::reset_color<Char>(buf);
-}
-
-FMT_END_DETAIL_NAMESPACE
-
-template <typename S, typename Char = char_t<S>>
-void vprint(std::FILE* f, const text_style& ts, const S& format,
-            basic_format_args<buffer_context<type_identity_t<Char>>> args) {
-  basic_memory_buffer<Char> buf;
-  detail::vformat_to(buf, ts, detail::to_string_view(format), args);
-  if (detail::is_utf8()) {
-    detail::print(f, basic_string_view<Char>(buf.begin(), buf.size()));
-  } else {
-    buf.push_back(Char(0));
-    detail::fputs(buf.data(), f);
-  }
-}
-
-/**
-  \rst
-  Formats a string and prints it to the specified file stream using ANSI
-  escape sequences to specify text formatting.
-
-  **Example**::
-
-    fmt::print(fmt::emphasis::bold | fg(fmt::color::red),
-               "Elapsed time: {0:.2f} seconds", 1.23);
-  \endrst
- */
-template <typename S, typename... Args,
-          FMT_ENABLE_IF(detail::is_string<S>::value)>
-void print(std::FILE* f, const text_style& ts, const S& format_str,
-           const Args&... args) {
-  vprint(f, ts, format_str,
-         fmt::make_format_args<buffer_context<char_t<S>>>(args...));
-}
-
-/**
-  \rst
-  Formats a string and prints it to stdout using ANSI escape sequences to
-  specify text formatting.
-
-  **Example**::
-
-    fmt::print(fmt::emphasis::bold | fg(fmt::color::red),
-               "Elapsed time: {0:.2f} seconds", 1.23);
-  \endrst
- */
-template <typename S, typename... Args,
-          FMT_ENABLE_IF(detail::is_string<S>::value)>
-void print(const text_style& ts, const S& format_str, const Args&... args) {
-  return print(stdout, ts, format_str, args...);
-}
-
-template <typename S, typename Char = char_t<S>>
-inline std::basic_string<Char> vformat(
-    const text_style& ts, const S& format_str,
-    basic_format_args<buffer_context<type_identity_t<Char>>> args) {
-  basic_memory_buffer<Char> buf;
-  detail::vformat_to(buf, ts, detail::to_string_view(format_str), args);
-  return fmt::to_string(buf);
-}
-
-/**
-  \rst
-  Formats arguments and returns the result as a string using ANSI
-  escape sequences to specify text formatting.
-
-  **Example**::
-
-    #include <fmt/color.h>
-    std::string message = fmt::format(fmt::emphasis::bold | fg(fmt::color::red),
-                                      "The answer is {}", 42);
-  \endrst
-*/
-template <typename S, typename... Args, typename Char = char_t<S>>
-inline std::basic_string<Char> format(const text_style& ts, const S& format_str,
-                                      const Args&... args) {
-  return fmt::vformat(ts, detail::to_string_view(format_str),
-                      fmt::make_format_args<buffer_context<Char>>(args...));
-}
-
-/**
-  Formats a string with the given text_style and writes the output to ``out``.
- */
-template <typename OutputIt, typename Char,
-          FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, Char>::value)>
-OutputIt vformat_to(
-    OutputIt out, const text_style& ts, basic_string_view<Char> format_str,
-    basic_format_args<buffer_context<type_identity_t<Char>>> args) {
-  auto&& buf = detail::get_buffer<Char>(out);
-  detail::vformat_to(buf, ts, format_str, args);
-  return detail::get_iterator(buf);
-}
-
-/**
-  \rst
-  Formats arguments with the given text_style, writes the result to the output
-  iterator ``out`` and returns the iterator past the end of the output range.
-
-  **Example**::
-
-    std::vector<char> out;
-    fmt::format_to(std::back_inserter(out),
-                   fmt::emphasis::bold | fg(fmt::color::red), "{}", 42);
-  \endrst
-*/
-template <typename OutputIt, typename S, typename... Args,
-          bool enable = detail::is_output_iterator<OutputIt, char_t<S>>::value&&
-              detail::is_string<S>::value>
-inline auto format_to(OutputIt out, const text_style& ts, const S& format_str,
-                      Args&&... args) ->
-    typename std::enable_if<enable, OutputIt>::type {
-  return vformat_to(out, ts, detail::to_string_view(format_str),
-                    fmt::make_format_args<buffer_context<char_t<S>>>(args...));
-}
-
-template <typename T, typename Char>
-struct formatter<detail::styled_arg<T>, Char> : formatter<T, Char> {
-  template <typename FormatContext>
-  auto format(const detail::styled_arg<T>& arg, FormatContext& ctx) const
-      -> decltype(ctx.out()) {
-    const auto& ts = arg.style;
-    const auto& value = arg.value;
-    auto out = ctx.out();
-
-    bool has_style = false;
-    if (ts.has_emphasis()) {
-      has_style = true;
-      auto emphasis = detail::make_emphasis<Char>(ts.get_emphasis());
-      out = std::copy(emphasis.begin(), emphasis.end(), out);
-    }
-    if (ts.has_foreground()) {
-      has_style = true;
-      auto foreground =
-          detail::make_foreground_color<Char>(ts.get_foreground());
-      out = std::copy(foreground.begin(), foreground.end(), out);
-    }
-    if (ts.has_background()) {
-      has_style = true;
-      auto background =
-          detail::make_background_color<Char>(ts.get_background());
-      out = std::copy(background.begin(), background.end(), out);
-    }
-    out = formatter<T, Char>::format(value, ctx);
-    if (has_style) {
-      auto reset_color = string_view("\x1b[0m");
-      out = std::copy(reset_color.begin(), reset_color.end(), out);
-    }
-    return out;
-  }
-};
-
-/**
-  \rst
-  Returns an argument that will be formatted using ANSI escape sequences,
-  to be used in a formatting function.
-
-  **Example**::
-
-    fmt::print("Elapsed time: {0:.2f} seconds",
-               fmt::styled(1.23, fmt::fg(fmt::color::green) |
-                                 fmt::bg(fmt::color::blue)));
-  \endrst
- */
-template <typename T>
-FMT_CONSTEXPR auto styled(const T& value, text_style ts)
-    -> detail::styled_arg<remove_cvref_t<T>> {
-  return detail::styled_arg<remove_cvref_t<T>>{value, ts};
-}
-
-FMT_MODULE_EXPORT_END
-FMT_END_NAMESPACE
-
-#endif  // FMT_COLOR_H_

libfuse/lib/fmt/compile.h

@@ -1,611 +0,0 @@
-// Formatting library for C++ - experimental format string compilation
-//
-// Copyright (c) 2012 - present, Victor Zverovich and fmt contributors
-// All rights reserved.
-//
-// For the license information refer to format.h.
-
-#ifndef FMT_COMPILE_H_
-#define FMT_COMPILE_H_
-
-#include "format.h"
-
-FMT_BEGIN_NAMESPACE
-namespace detail {
-
-template <typename Char, typename InputIt>
-FMT_CONSTEXPR inline counting_iterator copy_str(InputIt begin, InputIt end,
-                                                counting_iterator it) {
-  return it + (end - begin);
-}
-
-template <typename OutputIt> class truncating_iterator_base {
- protected:
-  OutputIt out_;
-  size_t limit_;
-  size_t count_ = 0;
-
-  truncating_iterator_base() : out_(), limit_(0) {}
-
-  truncating_iterator_base(OutputIt out, size_t limit)
-      : out_(out), limit_(limit) {}
-
- public:
-  using iterator_category = std::output_iterator_tag;
-  using value_type = typename std::iterator_traits<OutputIt>::value_type;
-  using difference_type = std::ptrdiff_t;
-  using pointer = void;
-  using reference = void;
-  FMT_UNCHECKED_ITERATOR(truncating_iterator_base);
-
-  OutputIt base() const { return out_; }
-  size_t count() const { return count_; }
-};
-
-// An output iterator that truncates the output and counts the number of objects
-// written to it.
-template <typename OutputIt,
-          typename Enable = typename std::is_void<
-              typename std::iterator_traits<OutputIt>::value_type>::type>
-class truncating_iterator;
-
-template <typename OutputIt>
-class truncating_iterator<OutputIt, std::false_type>
-    : public truncating_iterator_base<OutputIt> {
-  mutable typename truncating_iterator_base<OutputIt>::value_type blackhole_;
-
- public:
-  using value_type = typename truncating_iterator_base<OutputIt>::value_type;
-
-  truncating_iterator() = default;
-
-  truncating_iterator(OutputIt out, size_t limit)
-      : truncating_iterator_base<OutputIt>(out, limit) {}
-
-  truncating_iterator& operator++() {
-    if (this->count_++ < this->limit_) ++this->out_;
-    return *this;
-  }
-
-  truncating_iterator operator++(int) {
-    auto it = *this;
-    ++*this;
-    return it;
-  }
-
-  value_type& operator*() const {
-    return this->count_ < this->limit_ ? *this->out_ : blackhole_;
-  }
-};
-
-template <typename OutputIt>
-class truncating_iterator<OutputIt, std::true_type>
-    : public truncating_iterator_base<OutputIt> {
- public:
-  truncating_iterator() = default;
-
-  truncating_iterator(OutputIt out, size_t limit)
-      : truncating_iterator_base<OutputIt>(out, limit) {}
-
-  template <typename T> truncating_iterator& operator=(T val) {
-    if (this->count_++ < this->limit_) *this->out_++ = val;
-    return *this;
-  }
-
-  truncating_iterator& operator++() { return *this; }
-  truncating_iterator& operator++(int) { return *this; }
-  truncating_iterator& operator*() { return *this; }
-};
-
-// A compile-time string which is compiled into fast formatting code.
-class compiled_string {};
-
-template <typename S>
-struct is_compiled_string : std::is_base_of<compiled_string, S> {};
-
-/**
-  \rst
-  Converts a string literal *s* into a format string that will be parsed at
-  compile time and converted into efficient formatting code. Requires C++17
-  ``constexpr if`` compiler support.
-
-  **Example**::
-
-    // Converts 42 into std::string using the most efficient method and no
-    // runtime format string processing.
-    std::string s = fmt::format(FMT_COMPILE("{}"), 42);
-  \endrst
- */
-#if defined(__cpp_if_constexpr) && defined(__cpp_return_type_deduction)
-#  define FMT_COMPILE(s) \
-    FMT_STRING_IMPL(s, fmt::detail::compiled_string, explicit)
-#else
-#  define FMT_COMPILE(s) FMT_STRING(s)
-#endif
-
-#if FMT_USE_NONTYPE_TEMPLATE_ARGS
-template <typename Char, size_t N,
-          fmt::detail_exported::fixed_string<Char, N> Str>
-struct udl_compiled_string : compiled_string {
-  using char_type = Char;
-  explicit constexpr operator basic_string_view<char_type>() const {
-    return {Str.data, N - 1};
-  }
-};
-#endif
-
-template <typename T, typename... Tail>
-const T& first(const T& value, const Tail&...) {
-  return value;
-}
-
-#if defined(__cpp_if_constexpr) && defined(__cpp_return_type_deduction)
-template <typename... Args> struct type_list {};
-
-// Returns a reference to the argument at index N from [first, rest...].
-template <int N, typename T, typename... Args>
-constexpr const auto& get([[maybe_unused]] const T& first,
-                          [[maybe_unused]] const Args&... rest) {
-  static_assert(N < 1 + sizeof...(Args), "index is out of bounds");
-  if constexpr (N == 0)
-    return first;
-  else
-    return detail::get<N - 1>(rest...);
-}
-
-template <typename Char, typename... Args>
-constexpr int get_arg_index_by_name(basic_string_view<Char> name,
-                                    type_list<Args...>) {
-  return get_arg_index_by_name<Args...>(name);
-}
-
-template <int N, typename> struct get_type_impl;
-
-template <int N, typename... Args> struct get_type_impl<N, type_list<Args...>> {
-  using type =
-      remove_cvref_t<decltype(detail::get<N>(std::declval<Args>()...))>;
-};
-
-template <int N, typename T>
-using get_type = typename get_type_impl<N, T>::type;
-
-template <typename T> struct is_compiled_format : std::false_type {};
-
-template <typename Char> struct text {
-  basic_string_view<Char> data;
-  using char_type = Char;
-
-  template <typename OutputIt, typename... Args>
-  constexpr OutputIt format(OutputIt out, const Args&...) const {
-    return write<Char>(out, data);
-  }
-};
-
-template <typename Char>
-struct is_compiled_format<text<Char>> : std::true_type {};
-
-template <typename Char>
-constexpr text<Char> make_text(basic_string_view<Char> s, size_t pos,
-                               size_t size) {
-  return {{&s[pos], size}};
-}
-
-template <typename Char> struct code_unit {
-  Char value;
-  using char_type = Char;
-
-  template <typename OutputIt, typename... Args>
-  constexpr OutputIt format(OutputIt out, const Args&...) const {
-    return write<Char>(out, value);
-  }
-};
-
-// This ensures that the argument type is convertible to `const T&`.
-template <typename T, int N, typename... Args>
-constexpr const T& get_arg_checked(const Args&... args) {
-  const auto& arg = detail::get<N>(args...);
-  if constexpr (detail::is_named_arg<remove_cvref_t<decltype(arg)>>()) {
-    return arg.value;
-  } else {
-    return arg;
-  }
-}
-
-template <typename Char>
-struct is_compiled_format<code_unit<Char>> : std::true_type {};
-
-// A replacement field that refers to argument N.
-template <typename Char, typename T, int N> struct field {
-  using char_type = Char;
-
-  template <typename OutputIt, typename... Args>
-  constexpr OutputIt format(OutputIt out, const Args&... args) const {
-    return write<Char>(out, get_arg_checked<T, N>(args...));
-  }
-};
-
-template <typename Char, typename T, int N>
-struct is_compiled_format<field<Char, T, N>> : std::true_type {};
-
-// A replacement field that refers to argument with name.
-template <typename Char> struct runtime_named_field {
-  using char_type = Char;
-  basic_string_view<Char> name;
-
-  template <typename OutputIt, typename T>
-  constexpr static bool try_format_argument(
-      OutputIt& out,
-      // [[maybe_unused]] due to unused-but-set-parameter warning in GCC 7,8,9
-      [[maybe_unused]] basic_string_view<Char> arg_name, const T& arg) {
-    if constexpr (is_named_arg<typename std::remove_cv<T>::type>::value) {
-      if (arg_name == arg.name) {
-        out = write<Char>(out, arg.value);
-        return true;
-      }
-    }
-    return false;
-  }
-
-  template <typename OutputIt, typename... Args>
-  constexpr OutputIt format(OutputIt out, const Args&... args) const {
-    bool found = (try_format_argument(out, name, args) || ...);
-    if (!found) {
-      FMT_THROW(format_error("argument with specified name is not found"));
-    }
-    return out;
-  }
-};
-
-template <typename Char>
-struct is_compiled_format<runtime_named_field<Char>> : std::true_type {};
-
-// A replacement field that refers to argument N and has format specifiers.
-template <typename Char, typename T, int N> struct spec_field {
-  using char_type = Char;
-  formatter<T, Char> fmt;
-
-  template <typename OutputIt, typename... Args>
-  constexpr FMT_INLINE OutputIt format(OutputIt out,
-                                       const Args&... args) const {
-    const auto& vargs =
-        fmt::make_format_args<basic_format_context<OutputIt, Char>>(args...);
-    basic_format_context<OutputIt, Char> ctx(out, vargs);
-    return fmt.format(get_arg_checked<T, N>(args...), ctx);
-  }
-};
-
-template <typename Char, typename T, int N>
-struct is_compiled_format<spec_field<Char, T, N>> : std::true_type {};
-
-template <typename L, typename R> struct concat {
-  L lhs;
-  R rhs;
-  using char_type = typename L::char_type;
-
-  template <typename OutputIt, typename... Args>
-  constexpr OutputIt format(OutputIt out, const Args&... args) const {
-    out = lhs.format(out, args...);
-    return rhs.format(out, args...);
-  }
-};
-
-template <typename L, typename R>
-struct is_compiled_format<concat<L, R>> : std::true_type {};
-
-template <typename L, typename R>
-constexpr concat<L, R> make_concat(L lhs, R rhs) {
-  return {lhs, rhs};
-}
-
-struct unknown_format {};
-
-template <typename Char>
-constexpr size_t parse_text(basic_string_view<Char> str, size_t pos) {
-  for (size_t size = str.size(); pos != size; ++pos) {
-    if (str[pos] == '{' || str[pos] == '}') break;
-  }
-  return pos;
-}
-
-template <typename Args, size_t POS, int ID, typename S>
-constexpr auto compile_format_string(S format_str);
-
-template <typename Args, size_t POS, int ID, typename T, typename S>
-constexpr auto parse_tail(T head, S format_str) {
-  if constexpr (POS !=
-                basic_string_view<typename S::char_type>(format_str).size()) {
-    constexpr auto tail = compile_format_string<Args, POS, ID>(format_str);
-    if constexpr (std::is_same<remove_cvref_t<decltype(tail)>,
-                               unknown_format>())
-      return tail;
-    else
-      return make_concat(head, tail);
-  } else {
-    return head;
-  }
-}
-
-template <typename T, typename Char> struct parse_specs_result {
-  formatter<T, Char> fmt;
-  size_t end;
-  int next_arg_id;
-};
-
-constexpr int manual_indexing_id = -1;
-
-template <typename T, typename Char>
-constexpr parse_specs_result<T, Char> parse_specs(basic_string_view<Char> str,
-                                                  size_t pos, int next_arg_id) {
-  str.remove_prefix(pos);
-  auto ctx = compile_parse_context<Char>(str, max_value<int>(), nullptr, {},
-                                         next_arg_id);
-  auto f = formatter<T, Char>();
-  auto end = f.parse(ctx);
-  return {f, pos + fmt::detail::to_unsigned(end - str.data()),
-          next_arg_id == 0 ? manual_indexing_id : ctx.next_arg_id()};
-}
-
-template <typename Char> struct arg_id_handler {
-  arg_ref<Char> arg_id;
-
-  constexpr int operator()() {
-    FMT_ASSERT(false, "handler cannot be used with automatic indexing");
-    return 0;
-  }
-  constexpr int operator()(int id) {
-    arg_id = arg_ref<Char>(id);
-    return 0;
-  }
-  constexpr int operator()(basic_string_view<Char> id) {
-    arg_id = arg_ref<Char>(id);
-    return 0;
-  }
-
-  constexpr void on_error(const char* message) {
-    FMT_THROW(format_error(message));
-  }
-};
-
-template <typename Char> struct parse_arg_id_result {
-  arg_ref<Char> arg_id;
-  const Char* arg_id_end;
-};
-
-template <int ID, typename Char>
-constexpr auto parse_arg_id(const Char* begin, const Char* end) {
-  auto handler = arg_id_handler<Char>{arg_ref<Char>{}};
-  auto arg_id_end = parse_arg_id(begin, end, handler);
-  return parse_arg_id_result<Char>{handler.arg_id, arg_id_end};
-}
-
-template <typename T, typename Enable = void> struct field_type {
-  using type = remove_cvref_t<T>;
-};
-
-template <typename T>
-struct field_type<T, enable_if_t<detail::is_named_arg<T>::value>> {
-  using type = remove_cvref_t<decltype(T::value)>;
-};
-
-template <typename T, typename Args, size_t END_POS, int ARG_INDEX, int NEXT_ID,
-          typename S>
-constexpr auto parse_replacement_field_then_tail(S format_str) {
-  using char_type = typename S::char_type;
-  constexpr auto str = basic_string_view<char_type>(format_str);
-  constexpr char_type c = END_POS != str.size() ? str[END_POS] : char_type();
-  if constexpr (c == '}') {
-    return parse_tail<Args, END_POS + 1, NEXT_ID>(
-        field<char_type, typename field_type<T>::type, ARG_INDEX>(),
-        format_str);
-  } else if constexpr (c != ':') {
-    FMT_THROW(format_error("expected ':'"));
-  } else {
-    constexpr auto result = parse_specs<typename field_type<T>::type>(
-        str, END_POS + 1, NEXT_ID == manual_indexing_id ? 0 : NEXT_ID);
-    if constexpr (result.end >= str.size() || str[result.end] != '}') {
-      FMT_THROW(format_error("expected '}'"));
-      return 0;
-    } else {
-      return parse_tail<Args, result.end + 1, result.next_arg_id>(
-          spec_field<char_type, typename field_type<T>::type, ARG_INDEX>{
-              result.fmt},
-          format_str);
-    }
-  }
-}
-
-// Compiles a non-empty format string and returns the compiled representation
-// or unknown_format() on unrecognized input.
-template <typename Args, size_t POS, int ID, typename S>
-constexpr auto compile_format_string(S format_str) {
-  using char_type = typename S::char_type;
-  constexpr auto str = basic_string_view<char_type>(format_str);
-  if constexpr (str[POS] == '{') {
-    if constexpr (POS + 1 == str.size())
-      FMT_THROW(format_error("unmatched '{' in format string"));
-    if constexpr (str[POS + 1] == '{') {
-      return parse_tail<Args, POS + 2, ID>(make_text(str, POS, 1), format_str);
-    } else if constexpr (str[POS + 1] == '}' || str[POS + 1] == ':') {
-      static_assert(ID != manual_indexing_id,
-                    "cannot switch from manual to automatic argument indexing");
-      constexpr auto next_id =
-          ID != manual_indexing_id ? ID + 1 : manual_indexing_id;
-      return parse_replacement_field_then_tail<get_type<ID, Args>, Args,
-                                               POS + 1, ID, next_id>(
-          format_str);
-    } else {
-      constexpr auto arg_id_result =
-          parse_arg_id<ID>(str.data() + POS + 1, str.data() + str.size());
-      constexpr auto arg_id_end_pos = arg_id_result.arg_id_end - str.data();
-      constexpr char_type c =
-          arg_id_end_pos != str.size() ? str[arg_id_end_pos] : char_type();
-      static_assert(c == '}' || c == ':', "missing '}' in format string");
-      if constexpr (arg_id_result.arg_id.kind == arg_id_kind::index) {
-        static_assert(
-            ID == manual_indexing_id || ID == 0,
-            "cannot switch from automatic to manual argument indexing");
-        constexpr auto arg_index = arg_id_result.arg_id.val.index;
-        return parse_replacement_field_then_tail<get_type<arg_index, Args>,
-                                                 Args, arg_id_end_pos,
-                                                 arg_index, manual_indexing_id>(
-            format_str);
-      } else if constexpr (arg_id_result.arg_id.kind == arg_id_kind::name) {
-        constexpr auto arg_index =
-            get_arg_index_by_name(arg_id_result.arg_id.val.name, Args{});
-        if constexpr (arg_index != invalid_arg_index) {
-          constexpr auto next_id =
-              ID != manual_indexing_id ? ID + 1 : manual_indexing_id;
-          return parse_replacement_field_then_tail<
-              decltype(get_type<arg_index, Args>::value), Args, arg_id_end_pos,
-              arg_index, next_id>(format_str);
-        } else {
-          if constexpr (c == '}') {
-            return parse_tail<Args, arg_id_end_pos + 1, ID>(
-                runtime_named_field<char_type>{arg_id_result.arg_id.val.name},
-                format_str);
-          } else if constexpr (c == ':') {
-            return unknown_format();  // no type info for specs parsing
-          }
-        }
-      }
-    }
-  } else if constexpr (str[POS] == '}') {
-    if constexpr (POS + 1 == str.size())
-      FMT_THROW(format_error("unmatched '}' in format string"));
-    return parse_tail<Args, POS + 2, ID>(make_text(str, POS, 1), format_str);
-  } else {
-    constexpr auto end = parse_text(str, POS + 1);
-    if constexpr (end - POS > 1) {
-      return parse_tail<Args, end, ID>(make_text(str, POS, end - POS),
-                                       format_str);
-    } else {
-      return parse_tail<Args, end, ID>(code_unit<char_type>{str[POS]},
-                                       format_str);
-    }
-  }
-}
-
-template <typename... Args, typename S,
-          FMT_ENABLE_IF(detail::is_compiled_string<S>::value)>
-constexpr auto compile(S format_str) {
-  constexpr auto str = basic_string_view<typename S::char_type>(format_str);
-  if constexpr (str.size() == 0) {
-    return detail::make_text(str, 0, 0);
-  } else {
-    constexpr auto result =
-        detail::compile_format_string<detail::type_list<Args...>, 0, 0>(
-            format_str);
-    return result;
-  }
-}
-#endif  // defined(__cpp_if_constexpr) && defined(__cpp_return_type_deduction)
-}  // namespace detail
-
-FMT_MODULE_EXPORT_BEGIN
-
-#if defined(__cpp_if_constexpr) && defined(__cpp_return_type_deduction)
-
-template <typename CompiledFormat, typename... Args,
-          typename Char = typename CompiledFormat::char_type,
-          FMT_ENABLE_IF(detail::is_compiled_format<CompiledFormat>::value)>
-FMT_INLINE std::basic_string<Char> format(const CompiledFormat& cf,
-                                          const Args&... args) {
-  auto s = std::basic_string<Char>();
-  cf.format(std::back_inserter(s), args...);
-  return s;
-}
-
-template <typename OutputIt, typename CompiledFormat, typename... Args,
-          FMT_ENABLE_IF(detail::is_compiled_format<CompiledFormat>::value)>
-constexpr FMT_INLINE OutputIt format_to(OutputIt out, const CompiledFormat& cf,
-                                        const Args&... args) {
-  return cf.format(out, args...);
-}
-
-template <typename S, typename... Args,
-          FMT_ENABLE_IF(detail::is_compiled_string<S>::value)>
-FMT_INLINE std::basic_string<typename S::char_type> format(const S&,
-                                                           Args&&... args) {
-  if constexpr (std::is_same<typename S::char_type, char>::value) {
-    constexpr auto str = basic_string_view<typename S::char_type>(S());
-    if constexpr (str.size() == 2 && str[0] == '{' && str[1] == '}') {
-      const auto& first = detail::first(args...);
-      if constexpr (detail::is_named_arg<
-                        remove_cvref_t<decltype(first)>>::value) {
-        return fmt::to_string(first.value);
-      } else {
-        return fmt::to_string(first);
-      }
-    }
-  }
-  constexpr auto compiled = detail::compile<Args...>(S());
-  if constexpr (std::is_same<remove_cvref_t<decltype(compiled)>,
-                             detail::unknown_format>()) {
-    return fmt::format(
-        static_cast<basic_string_view<typename S::char_type>>(S()),
-        std::forward<Args>(args)...);
-  } else {
-    return fmt::format(compiled, std::forward<Args>(args)...);
-  }
-}
-
-template <typename OutputIt, typename S, typename... Args,
-          FMT_ENABLE_IF(detail::is_compiled_string<S>::value)>
-FMT_CONSTEXPR OutputIt format_to(OutputIt out, const S&, Args&&... args) {
-  constexpr auto compiled = detail::compile<Args...>(S());
-  if constexpr (std::is_same<remove_cvref_t<decltype(compiled)>,
-                             detail::unknown_format>()) {
-    return fmt::format_to(
-        out, static_cast<basic_string_view<typename S::char_type>>(S()),
-        std::forward<Args>(args)...);
-  } else {
-    return fmt::format_to(out, compiled, std::forward<Args>(args)...);
-  }
-}
-#endif
-
-template <typename OutputIt, typename S, typename... Args,
-          FMT_ENABLE_IF(detail::is_compiled_string<S>::value)>
-format_to_n_result<OutputIt> format_to_n(OutputIt out, size_t n,
-                                         const S& format_str, Args&&... args) {
-  auto it = fmt::format_to(detail::truncating_iterator<OutputIt>(out, n),
-                           format_str, std::forward<Args>(args)...);
-  return {it.base(), it.count()};
-}
-
-template <typename S, typename... Args,
-          FMT_ENABLE_IF(detail::is_compiled_string<S>::value)>
-FMT_CONSTEXPR20 size_t formatted_size(const S& format_str,
-                                      const Args&... args) {
-  return fmt::format_to(detail::counting_iterator(), format_str, args...)
-      .count();
-}
-
-template <typename S, typename... Args,
-          FMT_ENABLE_IF(detail::is_compiled_string<S>::value)>
-void print(std::FILE* f, const S& format_str, const Args&... args) {
-  memory_buffer buffer;
-  fmt::format_to(std::back_inserter(buffer), format_str, args...);
-  detail::print(f, {buffer.data(), buffer.size()});
-}
-
-template <typename S, typename... Args,
-          FMT_ENABLE_IF(detail::is_compiled_string<S>::value)>
-void print(const S& format_str, const Args&... args) {
-  print(stdout, format_str, args...);
-}
-
-#if FMT_USE_NONTYPE_TEMPLATE_ARGS
-inline namespace literals {
-template <detail_exported::fixed_string Str> constexpr auto operator""_cf() {
-  using char_t = remove_cvref_t<decltype(Str.data[0])>;
-  return detail::udl_compiled_string<char_t, sizeof(Str.data) / sizeof(char_t),
-                                     Str>();
-}
-}  // namespace literals
-#endif
-
-FMT_MODULE_EXPORT_END
-FMT_END_NAMESPACE
-
-#endif  // FMT_COMPILE_H_