feat(my-deepagent): v0.2 PR #1 — Postgres migration (ahead of M8-Py FastAPI)

Switches the production backing store from SQLite to PostgreSQL 16, per DR-2. The migration trigger is two concurrent writers on the my-deepagent ORM tables — which first appears with FastAPI (M8-Py). Doing the cut now keeps the surface area small while M8-Py is still planning. Production deps: `asyncpg`, `psycopg[binary]`, `langgraph-checkpoint-postgres`. Test deps: `aiosqlite` (the bulk of unit + integration tests stay on sqlite tmp_path for speed; the E2E suite and the new checkpointer tests exercise the live Postgres path). Highlights - `persistence/db.py`: dialect-aware connect listener. SQLite still gets WAL + busy_timeout=5000 + foreign_keys=ON; Postgres gets `SET TIME ZONE 'UTC'`. Added `Database.dialect_name` + `drop_schema` (test-only). - `persistence/checkpointer.py`: SqliteSaver → AsyncPostgresSaver. API is now async (`async with`) and takes a connection string. SQLAlchemy URL prefixes (`+asyncpg`, `+psycopg`) are auto-stripped to a plain libpq DSN (`_to_psycopg_dsn` helper, 4 unit tests). - `persistence/upsert.py` (new): `insert_for(session)` — dialect-aware UPSERT helper. Picks `postgresql.insert` or `sqlite.insert` based on the bound engine. Replaces 5 hardcoded `sqlite_insert` call sites in `budget.py`, `recovery.py`, `cli/doctor.py`. - `persistence/models.py`: `RunRow` partial unique index declares both `postgresql_where=` and `sqlite_where=` for cross-dialect correctness. - `config.py`: default `database_url` now `postgresql+asyncpg://devflow:devflow@localhost:55432/mydeepagent`. v3 `devflow` DB preserved untouched; v4 lives in a fresh `mydeepagent` DB. - `cli/doctor.py` check 8: dialect-aware DB liveness probe. Postgres path runs `SELECT 1` (pg_isready equivalent); SQLite keeps `PRAGMA integrity_check`. - `alembic/env.py`: env-aware URL resolution (`MYDEEPAGENT_DATABASE_URL` > `DATABASE_URL` > default). Async driver prefixes are mapped to the sync equivalents alembic needs. - `alembic/versions/9f2a6c79667e_v0_2_baseline_schema_postgres.py` (new): fresh baseline autogenerated against live Postgres. Old SQLite migrations (`79945fdc2649`, `839f2233e346`) deleted — v0.2 starts a clean history. - `tests/conftest.py` (new): `pg_db_url` async fixture creates a fresh DB per test against docker-compose `devflow-postgres` and drops it on teardown after terminating lingering backends. - `tests/integration/test_checkpointer.py`: rewritten for AsyncPostgresSaver (4 pure DSN-converter unit tests + 3 async context-manager integration tests). - `tests/integration/test_e2e_workflow.py`: switched to `pg_db_url`. Real OpenRouter E2E now exercises the production Postgres path end-to-end. Recovery - Previous SQLite database at the platformdirs data_dir is NOT auto-migrated; v0.1.0 was the only release that wrote to it. Set `MYDEEPAGENT_DATABASE_URL=sqlite+aiosqlite:///<path>` to read it. - The v3 `devflow` Postgres DB is preserved untouched (separate database name); to inspect: `psql -h localhost -p 55432 -U devflow -d devflow`. Gates - ruff check + ruff format --check + mypy --strict: PASS (102 source files) - pytest non-E2E: 576 PASS (5.46 s) - pytest E2E real OpenRouter on Postgres: 1 PASS (122.93 s, ~$0.05/run) --no-verify: lefthook still TS-only (deleted in 0e61b2d but still queryable in git history). Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-16 18:11:19 +09:00
parent 55be4f3aa0
commit e21a5241bf
17 changed files with 730 additions and 936 deletions
--- a/my-deepagent/uv.lock
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@@ -1097,8 +1138,8 @@ name = "my-deepagent"
 version = "0.1.0"
 source = { editable = "." }
 dependencies = [
-    { name = "aiosqlite" },
    { name = "alembic" },
+    { name = "asyncpg" },
    { name = "deepagents" },
    { name = "greenlet" },
    { name = "httpx" },
@@ -1108,10 +1149,11 @@ dependencies = [
    { name = "langchain-core" },
    { name = "langchain-openai" },
    { name = "langgraph" },
-    { name = "langgraph-checkpoint-sqlite" },
+    { name = "langgraph-checkpoint-postgres" },
    { name = "openai" },
    { name = "platformdirs" },
    { name = "prompt-toolkit" },
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    { name = "pydantic" },
    { name = "pydantic-settings" },
    { name = "pyyaml" },
@@ -1124,6 +1166,7 @@ dependencies = [

 [package.dev-dependencies]
 dev = [
+    { name = "aiosqlite" },
    { name = "mypy" },
    { name = "pre-commit" },
    { name = "pytest" },
@@ -1138,8 +1181,8 @@ dev = [

 [package.metadata]
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