PostreSQL backend support (#62)

[GH-53]
Changes:
- Add the implementation of the Storage trait for a PostgreSQL DB
  backend using SQLx.
- Add a script to start a development container with a PosgreSQL DB.
- Add prepared SQL statements for the offline checks.
- Add initial DB schema as a migration
- Updated deps

* Add unit tests for the PostgreSQL Storage implementation

[GH-53]
- Add a reusable module that generates Logs fixtures
- Adds unit tests for all the methods of the trait Storage

* Extend CI script to support the new DB backend (#53)
* Otimised PosgreSQL backend to use batched inserts (#53)
* Run tests for all features in the CI (#53)
* Insert db version into the meta table (#53)
* Make all DB backends available at runtime (#53)
* Fix for test latest_block (#53)
* Use BYTEA for all the addresses stored in the DB (#53)
* Add docs for the new DB backend (#53)
* Migrate the DB before running tests in CI
* Use prepared SQL queries to build the container
* Automatic detection of the chosen DB backend based on the connection path (#53)
* Update DATABASE_URL for testing environment
* Update docs after CLI change (#53)
* Error when DB content is wrong (#62)

Author: felipet

.github/workflows/ci.yaml

@@ -3,6 +3,8 @@ name: Rust Main
 
 env:
   CARGO_TERM_COLOR: always
+  SQLX_VERSION: 0.8.6
+  SQLX_FEATURES: "postgres"
 
 # Run for every event affecting the main branch
 on:
@@ -46,7 +48,7 @@ jobs:
         with:
           components: rustfmt clippy
       - name: Build with all features
-        run: cargo check --all-features --future-incompat-report
+        run: SQLX_OFFLINE=true cargo check --all-features --future-incompat-report
 
   clippy:
     name: Clippy linter
@@ -59,20 +61,45 @@ jobs:
         with:
           components: rustfmt clippy
       - name: Linting with all features
-        run: cargo clippy --all-features --no-deps -- -D warnings
+        run: SQLX_OFFLINE=true cargo clippy --all-features --no-deps -- -D warnings
 
   # Comprehensive test with all features
   test:
     name: Test
     needs: clippy
     runs-on: ubuntu-latest
+    services:
+      postgres:
+        image: postgres:16
+        env:
+          POSTGRES_USER: postgres
+          POSTGRES_PASSWORD: password
+          POSTGRES_DB: quixote_test
+        ports:
+          - 5432:5432
+        options: >-
+          --health-cmd "pg_isready -U postgres"
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
     steps:
       - uses: actions/checkout@v6
       - uses: Swatinem/rust-cache@v2.8.2
       - uses: dtolnay/rust-toolchain@stable
+      - name: Install SQLx-cli
+        run:
+            cargo install sqlx-cli
+            --version=${{ env.SQLX_VERSION }}
+            --features ${{ env.SQLX_FEATURES }}
+            --no-default-features
+            --locked
+      - name: Migrate database
+        run: SKIP_DOCKER=true ./script/init_postgresql.bash
       - name: Tests
+        env:
+          DATABASE_URL: postgres://postgres:password@localhost:5432/quixote
         run: |
           QUIXOTE_TEST_RPC=${{ secrets.QUIXOTE_TEST_RPC }} \
           QUIXOTE_TEST_RPC_USER=${{ secrets.QUIXOTE_TEST_RPC_USER }} \
           QUIXOTE_TEST_RPC_PASSWORD=${{ secrets.QUIXOTE_TEST_RPC_PASSWORD }} \
-          cargo test
+          cargo test --all-features