peter/tsapi-seriesdb-shared-sql
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run_setup: refuse an existing installation; remove --clean-slate

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- Removed --clean-slate: it dropped every schema in the database,
  including user data. Nothing used it.
- Pre-check (same rule as the Python client's init_postgres_db()): refuse
  if meta or log exists, series is not empty, or the prevent_series_drops
  trigger exists, naming the installed version. User schemas and tables
  are allowed and never touched; an empty series schema is reused.
- --drop-existing drops every registered series schema plus meta and log,
  and refuses if a series schema holds non-series objects.
- All files run in one transaction: a failure leaves nothing behind.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
peter 2026-10-06 11:58:46 +01:00
parent eb0f93e032
commit 9032fd3a45
2 changed files with 109 additions and 48 deletions
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@ -52,10 +52,18 @@ cp db_config.json.example db_config.json # then edit host/user/password
# 2. create the schema
python run_setup.py # uses db_config.json / defaults
python run_setup.py --host 192.168.1.7 --user claude --password claudepwd
python run_setup.py --drop-existing # drop meta+series+log first
python run_setup.py --clean-slate # drop ALL user objects first
python run_setup.py --drop-existing # drop the existing installation first
# (ALL series data); user schemas untouched
```
The database may hold the user's own schemas and tables; provisioning never
touches them. It **refuses** a database that already holds the library's
objects -- `meta`, `log`, a non-empty `series` schema, or the
`prevent_series_drops` event trigger -- and reports the installed version.
There are no migrations: re-provision with `--drop-existing` (deletes all
series) or use another database. All files run in one transaction, so a
failure leaves the database untouched.
Requires `psycopg2` and a PostgreSQL user with CREATE privileges on the target
database.