ConnorYohandJames Brunton f60a75c253 chore(saas): remove unused Flyway migration system (#7100)
## What this PR does

Removes the **Flyway** migration system from the SaaS build:

- drops `flyway-core` + `flyway-database-postgresql` from
`app/saas/build.gradle`
- deletes all `Vxx__*.sql` files under
`app/saas/src/main/resources/db/migration/`
- removes the `spring.flyway.*` config from
`application-saas.properties`
- clears the now-inert `SPRING_FLYWAY_ENABLED` override and stale Flyway
comments in `testing/compose/docker-compose-saas.yml`

`ddl-auto` is **left on `update`** (unchanged) — that's a separate
decision (see "Not in this PR").

## Why — Flyway never actually ran anywhere

From a full schema-management review
(`notes/FLYWAY_MIGRATION_REVIEW.md`), verified against the live
databases:

- **Prod & dev (v3):** no `flyway_schema_history` table exists in any
schema → Flyway has never executed. Schema is authored by the Supabase
migrations in `Stirling-PDF-SaaS` and applied by that repo's **GitHub
integration** (merge to `main` → prod).
- **Tests:** the saas module has zero `@SpringBootTest`; the only
real-DB integration tests (in `proprietary`) use `ddl-auto=create-drop`
and don't have Flyway on the classpath.
- **The mock-DB harness** (`testing/compose/docker-compose-saas.yml`,
PAYG cucumber) *explicitly disabled* Flyway, because the `Vxx`
migrations can't run against a clean Postgres — they assume Supabase has
already provisioned `users`/`teams` (`V2` ALTERs `users`, `V5`
references `teams`).

So Flyway was dead weight, and its 4 duplicate versions
(`V25/V26/V30/V31`) were a latent trap: re-enabling it would crash boot
on the collision. Everything it contained (schema + seeds like the
default pricing policy) is already mirrored by the Supabase migrations,
and by `saas-seed.sql` for the cucumber stack.

## ⚠️ Required follow-up (item #1) — capture the Flyway-only tables into
Supabase migrations

**This is documentation of the next step, not done in this PR.**

Seven tables were defined in Flyway with **no matching Supabase
migration**. They exist in prod today only because `ddl-auto=update`
created them from their entities. Before `ddl-auto` is ever tightened to
`validate` (see #3 below), and so any fresh Supabase branch is complete,
they must be added as Supabase migrations in
`Stirling-PDF-SaaS/supabase/migrations/`.

**Capture (CREATE) — 6 live tables** (definitions are visible in the
deleted files in this PR's diff):

| Table | Source (deleted here) | Backing entity |
|---|---|---|
| `resource_grants` | `V25__resource_grants.sql` | `ResourceGrant` |
| `integration_configs` | `V26__integration_configs.sql` |
`IntegrationConfig` |
| `policy_sources` | `V22__policy_engine_tables.sql` | `SourceEntity` |
| `policy_source_doc_counts` | `V23__policy_source_doc_counts.sql` |
`SourceDocCountEntity` |
| `policy_source_doc_totals` | `V23__policy_source_doc_counts.sql` |
`SourceDocTotalEntity` |
| `saas_user_extensions` | `V9__saas_user_team_extensions.sql` |
`SaasUserExtensions` |

Write them as `CREATE TABLE IF NOT EXISTS stirling_pdf.<name> (...)`
(idempotent — no-op against the existing prod/v3 tables). Preserve
column types/defaults/constraints from the deleted `Vxx` files.

**Drop (do NOT recreate) — 1 orphaned table:**

- `classification_labels` — created by `V30` and dropped by `V39` within
Flyway; its `ClassificationLabel` is now a plain `record`, not a JPA
entity. It lingers in prod only because Flyway's `V39` drop never ran.
The follow-up should emit a `DROP TABLE IF EXISTS
stirling_pdf.classification_labels` (mirroring `V39`'s intent), after
confirming nothing reads it.

## Not in this PR (deliberately)

- **#3 — flip saas `ddl-auto` `update` → `validate`.** Held pending team
confirmation; it has boot-risk and should be gated by a CI
"validate-boot against a fresh Supabase branch" first. Self-hosted stays
on `update` regardless.
- **#4 — `billing_subscriptions` split-brain** (prod `public` has 23,164
rows, `stirling_pdf` has 0, Java reads the empty one). Tracked
separately.

## Verification

- `:saas:compileJava` succeeds with Flyway removed (no code imports
`org.flywaydb.*`).
- No test or ArchUnit rule references Flyway or the migration files.
- No runtime/data impact: Flyway never ran against any live database.

---------

Co-authored-by: James Brunton <jbrunton96@gmail.com>
2026-07-21 09:32:56 +00:00
2026-07-11 12:48:53 +01:00
2026-03-25 11:00:40 +00:00
2026-07-17 10:16:06 +00:00
2026-03-25 11:00:40 +00:00

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