15 KiB
phase, verified, status, score, re_verification, gaps, human_verification
| phase | verified | status | score | re_verification | gaps | human_verification | ||||||||||||||||||||||||||||||||||||||
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| 03-postgresql-support | 2026-03-24T10:00:00Z | gaps_found | 9/10 must-haves verified | false |
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Phase 03: PostgreSQL Support Verification Report
Phase Goal: Users running PostgreSQL infrastructure can point DiunDashboard at a Postgres database via DATABASE_URL and the dashboard works identically to the SQLite deployment Verified: 2026-03-24T10:00:00Z Status: gaps_found Re-verification: No — initial verification
Goal Achievement
Observable Truths
| # | Truth | Status | Evidence |
|---|---|---|---|
| 1 | Setting DATABASE_URL starts the app using PostgreSQL; omitting it falls back to SQLite | ✓ VERIFIED | main.go L20-46: branches on os.Getenv("DATABASE_URL"), correct startup log for each path |
| 2 | A fresh PostgreSQL deployment receives all schema tables via automatic migration | ✓ VERIFIED | RunPostgresMigrations wired in main.go L27; migrations/postgres/0001_initial_schema.up.sql creates all 3 tables |
| 3 | Existing SQLite users upgrade without data loss (baseline migration = current schema) | ✓ VERIFIED | SQLite migration unchanged; RunSQLiteMigrations called in else branch; CREATE TABLE IF NOT EXISTS pattern is idempotent |
| 4 | App can be run with Docker Compose using an optional postgres service profile | ✓ VERIFIED | compose.yml and compose.dev.yml both have profiles: [postgres]; docker compose config validates |
| 5 | PostgresStore implements all 9 Store interface methods | ✓ VERIFIED | 9 methods found; go build ./pkg/diunwebhook/ succeeds (compiler enforces interface compliance) |
| 6 | PostgreSQL migration creates identical 3-table schema to SQLite | ✓ VERIFIED | 0001_initial_schema.up.sql: updates, tags (SERIAL PK), tag_assignments with FK cascade |
| 7 | Duplicate tag creation returns 409 on both backends | ✓ VERIFIED | diunwebhook.go L172: strings.Contains(strings.ToLower(err.Error()), "unique") — case-insensitive |
| 8 | All existing SQLite tests pass | ✓ VERIFIED | go test -count=1 ./pkg/diunwebhook/ — 22 tests, all PASS, 0 failures |
| 9 | Startup log identifies active backend | ✓ VERIFIED | main.go L31: "Using PostgreSQL database" / L45: "Using SQLite database at %s" |
| 10 | pgx/v5 is a direct dependency in go.mod | ✗ FAILED | Listed as // indirect in go.mod; go mod tidy shows it should be in the direct require block |
Score: 9/10 truths verified
Required Artifacts
| Artifact | Expected | Status | Details |
|---|---|---|---|
pkg/diunwebhook/postgres_store.go |
PostgresStore implementing all 9 methods | ✓ VERIFIED | 9 methods, no mutex, SetMaxOpenConns(25), RETURNING id in CreateTag, ON CONFLICT DO UPDATE in AssignTag |
pkg/diunwebhook/migrate.go |
RunSQLiteMigrations + RunPostgresMigrations | ✓ VERIFIED | Both functions present, both go:embed directives present, pgx5 driver name correct |
pkg/diunwebhook/migrations/postgres/0001_initial_schema.up.sql |
PostgreSQL baseline schema (3 tables) | ✓ VERIFIED | SERIAL PRIMARY KEY, all 3 tables, TEXT timestamps matching scan logic |
pkg/diunwebhook/migrations/postgres/0001_initial_schema.down.sql |
PostgreSQL rollback | ✓ VERIFIED | DROP TABLE IF EXISTS for all 3 in dependency order |
cmd/diunwebhook/main.go |
DATABASE_URL branching logic | ✓ VERIFIED | Full branching logic, both startup paths, pgx/v5/stdlib blank import |
compose.yml |
Production compose with postgres profile | ✓ VERIFIED | profiles: [postgres], pg_isready healthcheck, required: false, postgres-data volume |
compose.dev.yml |
Dev compose with postgres profile | ✓ VERIFIED | profiles: [postgres], port 5432 exposed, required: false |
pkg/diunwebhook/postgres_test.go |
Build-tagged PostgreSQL integration helper | ✓ VERIFIED | //go:build postgres, NewTestPostgresServer, TEST_DATABASE_URL env var |
pkg/diunwebhook/diunwebhook.go |
Case-insensitive UNIQUE detection | ✓ VERIFIED | strings.Contains(strings.ToLower(err.Error()), "unique") at L172 |
go.mod |
pgx/v5 as direct dependency | ✗ GAP | github.com/jackc/pgx/v5 v5.9.1 in indirect block; go mod tidy diff confirms direct block is required |
Key Link Verification
| From | To | Via | Status | Details |
|---|---|---|---|---|
cmd/diunwebhook/main.go |
pkg/diunwebhook/postgres_store.go |
diun.NewPostgresStore(db) |
✓ WIRED | Line 30: store = diun.NewPostgresStore(db) |
cmd/diunwebhook/main.go |
pkg/diunwebhook/migrate.go |
diun.RunPostgresMigrations(db) |
✓ WIRED | Line 27: diun.RunPostgresMigrations(db) — also RunSQLiteMigrations at L41 |
cmd/diunwebhook/main.go |
pgx/v5/stdlib |
blank import for driver reg | ✓ WIRED | Line 15: _ "github.com/jackc/pgx/v5/stdlib" |
pkg/diunwebhook/postgres_store.go |
pkg/diunwebhook/store.go |
implements Store interface | ✓ WIRED | Compiler-enforced: go build succeeds; 9 method signatures match interface |
pkg/diunwebhook/migrate.go |
migrations/postgres/ |
go:embed directive | ✓ WIRED | //go:embed migrations/postgres with var postgresMigrations embed.FS |
Data-Flow Trace (Level 4)
Not applicable. This phase delivers persistence infrastructure (store, migrations, startup wiring) — no new UI components or data-rendering paths were added. The existing frontend polls the same /api/updates endpoint; the data source change is at the backend store layer, which is verified via interface compliance and compilation.
Behavioral Spot-Checks
| Behavior | Command | Result | Status |
|---|---|---|---|
| Full project compiles (both stores + drivers) | go build ./... | Exit 0 | ✓ PASS |
| go vet clean (no suspicious constructs) | go vet ./... | Exit 0 | ✓ PASS |
| All 22 SQLite tests pass | go test -count=1 ./pkg/diunwebhook/ | ok (0.046s) | ✓ PASS |
| postgres_test.go excluded without build tag | go test -count=1 ./pkg/diunwebhook/ (no -tags postgres) | Passes (no pgx import error) | ✓ PASS |
| compose.yml validates | docker compose config --quiet | Exit 0 | ✓ PASS |
| compose --profile postgres validates | docker compose --profile postgres config --quiet | Exit 0 | ✓ PASS |
| go mod tidy reports pgx/v5 indirect as wrong | go mod tidy -diff | Diff shows pgx/v5 should be direct | ✗ FAIL |
Requirements Coverage
| Requirement | Source Plans | Description | Status | Evidence |
|---|---|---|---|---|
| DB-01 | 03-01, 03-02 | PostgreSQL is supported as an alternative to SQLite via pgx v5 driver | ✓ SATISFIED | PostgresStore implements Store, pgx/v5/stdlib blank-imported in main.go, builds and vets cleanly |
| DB-02 | 03-02 | Database backend is selected via DATABASE_URL env var (present=PG, absent=SQLite) | ✓ SATISFIED | main.go L20-46: os.Getenv("DATABASE_URL") branches to correct store and migration runner |
| DB-03 | 03-01, 03-02 | Existing SQLite users can upgrade without data loss (baseline migration = current schema) | ✓ SATISFIED | SQLite migration path unchanged; RunSQLiteMigrations called when DATABASE_URL absent; schema tables match |
Orphaned requirements check: No requirements assigned to Phase 3 in REQUIREMENTS.md beyond DB-01, DB-02, DB-03. None are orphaned.
Anti-Patterns Found
| File | Line | Pattern | Severity | Impact |
|---|---|---|---|---|
| go.mod | 16 | pgx/v5 v5.9.1 // indirect |
⚠️ Warning | go mod tidy flags this as incorrect. Direct blank import in main.go means it should be in the direct require block. Does not affect compilation or runtime, but violates Go module hygiene conventions and the plan's stated acceptance criteria. |
Human Verification Required
1. PostgreSQL End-to-End Connectivity
Test: Start the app with a real PostgreSQL instance (e.g., docker compose --profile postgres up -d), set DATABASE_URL=postgres://diun:diun@localhost:5432/diundashboard?sslmode=disable, send a webhook POST, then fetch /api/updates
Expected: App logs "Using PostgreSQL database", webhook stores data in Postgres, GET /api/updates returns the event with correct fields, tags and acknowledgments work identically to SQLite
Why human: No PostgreSQL instance available in automated environment
2. Docker Compose postgres profile end-to-end
Test: Run docker compose --profile postgres up with a .env containing DATABASE_URL=postgres://diun:diun@postgres:5432/diundashboard?sslmode=disable, confirm app waits for postgres health check, connects, and serves the dashboard
Expected: postgres service starts, pg_isready passes, app container starts after it, dashboard loads in browser
Why human: Full compose stack requires running Docker daemon and inter-container networking
3. SQLite backward-compatibility upgrade
Test: Take a diun.db file created by a pre-Phase-3 binary (with existing rows in updates, tags, tag_assignments), start the new binary pointing at it (DATABASE_URL unset, DB_PATH set to that file)
Expected: golang-migrate detects schema is already at migration version 1 (ErrNoChange, no-op), all existing rows appear in the dashboard without any manual schema changes
Why human: Requires a pre-existing SQLite database from a previous binary version
Gaps Summary
One gap found: github.com/jackc/pgx/v5 is marked // indirect in go.mod even though cmd/diunwebhook/main.go directly imports _ "github.com/jackc/pgx/v5/stdlib". Running go mod tidy moves it to the direct require block. This is a module hygiene issue — the binary compiles and runs correctly — but it violates the DB-01 plan acceptance criterion ("pgx/v5 is in go.mod as a direct dependency") and will cause confusion for anyone reading go.mod expecting to understand the project's direct dependencies.
Fix: Run go mod tidy in the project root. This requires no code changes and takes under 1 second.
Verified: 2026-03-24T10:00:00Z Verifier: Claude (gsd-verifier)