Mint: table locks (#566)

* clean up db

* db: table lock

* db.table_with_schema

* fix encrypt.py

* postgres nowait

* add timeout to lock

* melt quote state in db

* kinda working

* kinda working with postgres

* remove dispose

* getting there

* porperly clean up db for tests

* faster tests

* configure connection pooling

* try github with connection pool

* invoice dispatcher does not lock db

* fakewallet: pay_if_regtest waits

* pay fakewallet invoices

* add more

* faster

* slower

* pay_if_regtest async

* do not lock the invoice dispatcher

* test: do I get disk I/O errors if we disable the invoice_callback_dispatcher?

* fix fake so it workss without a callback dispatchert

* test on github

* readd tasks

* refactor

* increase time for lock invoice disatcher

* try avoiding a race

* remove task

* github actions: test regtest with postgres

* mint per module

* no connection pool for testing

* enable pool

* do not resend paid event

* reuse connection

* close db connections

* sessions

* enable debug

* dispose engine

* disable connection pool for tests

* enable connection pool for postgres only

* clean up shutdown routine

* remove wait for lightning fakewallet lightning invoice

* cancel invoice listener tasks on shutdown

* fakewallet conftest: decrease outgoing delay

* delay payment and set postgres only if needed

* disable fail fast for regtest

* clean up regtest.yml

* change order of tests_db.py

* row-specific mint_quote locking

* refactor

* fix lock statement

* refactor swap

* refactor

* remove psycopg2

* add connection string example to .env.example

* remove unnecessary pay

* shorter sleep in test_wallet_subscription_swap

.github/workflows/tests.yml

@@ -23,21 +23,12 @@ jobs:
   poetry:
     name: Run (db ${{ inputs.mint-database }}, deprecated api ${{ inputs.mint-only-deprecated }})
     runs-on: ${{ inputs.os }}
-    services:
-      postgres:
-        image: postgres:latest
-        env:
-          POSTGRES_USER: cashu
-          POSTGRES_PASSWORD: cashu
-          POSTGRES_DB: cashu
-        ports:
-          - 5432:5432
-        options: >-
-          --health-cmd pg_isready
-          --health-interval 10s
-          --health-timeout 5s
-          --health-retries 5
     steps:
+      - name: Start PostgreSQL service
+        if: contains(inputs.mint-database, 'postgres')
+        run: |
+          docker run -d --name postgres -e POSTGRES_USER=cashu -e POSTGRES_PASSWORD=cashu -e POSTGRES_DB=cashu -p 5432:5432 postgres:latest
+          until docker exec postgres pg_isready; do sleep 1; done
       - name: Checkout repository and submodules
         uses: actions/checkout@v2
       - uses: ./.github/actions/prepare