wrolpi/scripts/reset_api_db.sh
Roland d9303a0ea8
Postgres -> SQLite hard cutover: the database moves into the media directory.
The database now lives at <media>/config/wrolpi.db so a library (files,
configs, AND database) travels with the drive between WROLPi systems.

Core:
- wrolpi/db.py: lazy SQLite engine factory (WAL, busy_timeout=30s,
  foreign_keys=ON); get_db_curs yields a plain sqlite3.Cursor; native
  sqlite3 paramstyle everywhere (no compatibility shims); global sqlite3
  adapters keep raw-SQL datetime formats identical to the ORM's.
- wrolpi/fts.py: FTS5 external-content search replacing tsvector/GIN.
  Injection-proof websearch->FTS5 translator, bm25(10,4,2,1) reproducing
  A/B/C/D weighting, fast(abc)/deep column filtering, snippet headlines.
  Stemming contract pinned by dedicated tests (watch/watches/watched/
  watching are interchangeable).
- wrolpi/schema_ddl.py: SQLite triggers shared verbatim by the alembic
  baseline and test DBs; fixes the channel video_count DELETE/UPDATE
  bugs and a latent total_size bug (it used the video id as channel id).
- wrolpi/db_bootstrap.py: startup auto-create/migrate; refuses databases
  written by a newer WROLPi (db_version_mismatch); SQLite 3.40 floor;
  network-filesystem refusal; never creates/migrates/trusts a database
  beneath an unmounted production media directory (shadow-DB guard).
- Alembic: 85 Postgres-era migrations squashed into one baseline;
  revision ids are dates (2026_07_10_1350) so filenames self-sort and
  alembic_version says when a schema was created; render_as_batch=True.
- All raw Postgres SQL rewritten (ANY->json_each IN, array_agg @> ->
  HAVING COUNT(DISTINCT), unnest->executemany/UPDATE..FROM,
  generate_series histograms->strftime GROUP BY, DISTINCT ON->
  row_number(), writable CTEs->two statements, jsonb_*->json_*, explicit
  NULLS FIRST/LAST, LIMIT-before-OFFSET).  Simple statements converted
  to SQLAlchemy instead (flag upsert, download retry/summary/tag checks,
  channel-by-tag estimate, Directory delete).
- Config imports count skipped entries; background dumps are blocked
  after a lossy import so partial imports can never overwrite YAML
  configs (they are the sole source of truth for rebuilds now).
- Search tolerates explicit JSON nulls for limit/offset (Postgres
  treated OFFSET NULL as 0; SQLite errors).
- file_group.id/doc_section.id render as INTEGER PRIMARY KEY on SQLite
  (BIGINT is not a rowid alias; FTS5 content_rowid requires it).

Ops teardown: docker-compose db service, CI postgres sidecars,
initialize_api_db.sh, controller postgresql service, psycopg2-binary all
removed.  upgrade.sh stops/disables postgresql (data is NOT deleted;
`systemctl enable --now postgresql` restores it); systemd units no
longer Want postgresql.service.

Existing-user upgrade: first boot creates+migrates the DB, configs
import (tags recreate their FileGroups from disk), a refresh rebuilds
the library index.  QA'd on the 10.0.0.8 RPi: rebuild matched the
Postgres baseline exactly; survived an uncontrolled hard reboot with
clean integrity checks.

Accepted behavior changes: FTS5 has no stopwords; bm25 length
normalization shifts some rank orders; fast-path d_headline is
un-highlighted; all-negative queries match nothing.

Deferred: Debian/trixie package lists (incl. sqlite3 CLI), Cypress
re-baseline, VACUUM INTO snapshots, exFAT/NTFS warning, auto-kicked
rebuild refresh with progress UX.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-12 14:09:37 -06:00

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#!/usr/bin/env bash
source /opt/wrolpi/wrolpi/scripts/lib.sh
# Re-execute this script if it wasn't called with sudo.
if [ $EUID != 0 ]; then
sudo "$0" "$@"
exit $?
fi
DB_FILE=/media/wrolpi/config/wrolpi.db
if [ -f "${DB_FILE}" ]; then
yes_or_no "Are you sure you want to reset the API database? All data will be lost." || exit 0
fi
set -x
systemctl stop wrolpi-api
# Delete the SQLite database (and its WAL sidecars), if it exists.
rm -f "${DB_FILE}" "${DB_FILE}-wal" "${DB_FILE}-shm"
# Recreate the database, run all migrations.
sudo -iu wrolpi /bin/bash -c 'cd /opt/wrolpi && /opt/wrolpi/venv/bin/python3 main.py db upgrade'
systemctl start wrolpi-api