name: Postgres

on:
  pull_request:
  push:
    branches:
      - master

jobs:
  postgres:

    runs-on: ubuntu-latest

    strategy:
      matrix:
        postgres: [9.4.25, 10.11, 12.1]

    services:
      postgres:
        image: postgres:${{ matrix.postgres }}
        env:
          POSTGRES_USER: postgres
          POSTGRES_PASSWORD: postgres
          POSTGRES_DB: postgres
        ports:
        # will assign a random free host port
        - 5432/tcp
        # needed because the postgres container does not provide a healthcheck
        options: --health-cmd pg_isready --health-interval 10s --health-timeout 5s --health-retries 5

    steps:
    - uses: actions/checkout@v1

    # Rust ------------------------------------------------

    - name: Install Rust toolchain
      uses: actions-rs/toolchain@v1
      if: steps.cache_rust.outputs.cache-hit != 'true'
      with:
        toolchain: stable
        profile: minimal
        override: true

    - name: Cache target/
      uses: actions/cache@v1
      with:
        path: target
        key: ${{ runner.os }}-cargo-build-target-postgres-${{ hashFiles('**/Cargo.lock') }}

    # -----------------------------------------------------

    # Check that we build with TLS support (TODO: we need a postgres image with SSL certs to test)
    - run: cargo check -p sqlx-core --no-default-features --features 'postgres macros uuid chrono tls'

    - run: cargo test -p sqlx --no-default-features --features 'postgres macros uuid chrono'
      env:
        DATABASE_URL: postgres://postgres:postgres@localhost:${{ job.services.postgres.ports[5432] }}/postgres

    # Rust ------------------------------------------------

    - name: Prepare build directory for cache
      run: |
        find ./target/debug -maxdepth 1 -type f -delete \
        && rm -fr ./target/debug/{deps,.fingerprint}/*sqlx* \
        && rm -f  ./target/.rustc_info.json

    # -----------------------------------------------------