name: Build
permissions: {}

concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
  cancel-in-progress: true

on:
  push:
    paths:
      - ".github/workflows/build.yml"
      - "src/**"
      - "migrations/**"
      - "Cargo.*"
      - "build.rs"
      - "rust-toolchain.toml"
      - "rustfmt.toml"
      - "diesel.toml"
      - "docker/Dockerfile.j2"
      - "docker/DockerSettings.yaml"
      - "macros/**"

  pull_request:
    paths:
      - ".github/workflows/build.yml"
      - "src/**"
      - "migrations/**"
      - "Cargo.*"
      - "build.rs"
      - "rust-toolchain.toml"
      - "rustfmt.toml"
      - "diesel.toml"
      - "docker/Dockerfile.j2"
      - "docker/DockerSettings.yaml"
      - "macros/**"

defaults:
  run:
    shell: bash

jobs:
  build:
    name: Build and Test ${{ matrix.channel }}
    runs-on: ubuntu-24.04
    timeout-minutes: 120
    # Make warnings errors, this is to prevent warnings slipping through.
    # This is done globally to prevent rebuilds when the RUSTFLAGS env variable changes.
    env:
      RUSTFLAGS: "-Dwarnings"
    strategy:
      fail-fast: false
      matrix:
        channel:
          - "rust-toolchain" # The version defined in rust-toolchain
          - "msrv" # The supported MSRV

    steps:
      # Install dependencies
      - name: "Install dependencies Ubuntu"
        run: |
          # Separate commands, so a failing update fails the step. The image already has Oracle's MySQL client
          # library, so a skipped install would otherwise go unnoticed and build against that one.
          sudo apt-get update
          sudo apt-get install -y --no-install-recommends openssl build-essential libmariadb-dev-compat libpq-dev libssl-dev pkg-config

          # Pass the MariaDB client library to mysqlclient-sys through its environment variables.
          # When it finds the library with pkg-config, its build script makes cargo rerun it whenever
          # anything in the library directory changes, and the install above changes that directory on
          # every run. So every MySQL build recompiled mysqlclient-sys, diesel and diesel_migrations,
          # even with a cached build. Cargo compares environment variables by their value instead.
          lib_dir="$(pkg-config --variable=libdir mysqlclient)"
          version="$(pkg-config --modversion mysqlclient)"
          {
            echo "MYSQLCLIENT_NO_PKG_CONFIG=1"
            echo "LIBMARIADB_NO_PKG_CONFIG=1"
            echo "MYSQLCLIENT_LIB_DIR=${lib_dir}"
            echo "MYSQLCLIENT_VERSION=${version}"
          } | tee -a "${GITHUB_ENV}"
      # End Install dependencies

      # Checkout the repo
      - name: "Checkout"
        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
          fetch-depth: 0
      # End Checkout the repo

      # Determine rust-toolchain version
      - name: Init Variables
        id: toolchain
        env:
          CHANNEL: ${{ matrix.channel }}
        run: |
          if [[ "${CHANNEL}" == 'rust-toolchain' ]]; then
            RUST_TOOLCHAIN="$(grep -m1 -oP 'channel.*"(\K.*?)(?=")' rust-toolchain.toml)"
          elif [[ "${CHANNEL}" == 'msrv' ]]; then
            RUST_TOOLCHAIN="$(grep -m1 -oP 'rust-version\s.*"(\K.*?)(?=")' Cargo.toml)"
          else
            RUST_TOOLCHAIN="${CHANNEL}"
          fi
          echo "RUST_TOOLCHAIN=${RUST_TOOLCHAIN}" | tee -a "${GITHUB_OUTPUT}"
      # End Determine rust-toolchain version


      - name: "Install toolchain ${{steps.toolchain.outputs.RUST_TOOLCHAIN}} as default"
        env:
          CHANNEL: ${{ matrix.channel }}
          RUST_TOOLCHAIN: ${{steps.toolchain.outputs.RUST_TOOLCHAIN}}
        run: |
          # Remove the rust-toolchain.toml
          rm rust-toolchain.toml

          # Install the correct toolchain version
          rustup toolchain install "${RUST_TOOLCHAIN}" --profile minimal --no-self-update

          # If this matrix is the `rust-toolchain` flow, also install rustfmt and clippy
          if [[ "${CHANNEL}" == 'rust-toolchain' ]]; then
            rustup component add --toolchain "${RUST_TOOLCHAIN}" rustfmt clippy
          fi

          # Set as the default toolchain
          rustup default "${RUST_TOOLCHAIN}"

      # Show environment
      - name: "Show environment"
        run: |
          rustc -vV
          cargo -vV
      # End Show environment

      # Enable Rust Caching
      - name: Rust Caching
        uses: Swatinem/rust-cache@d1527c8f67ef9af357290475d4af4b0fab8f12e0 # v2.9.3
        with:
          # Use a custom prefix-key to force a fresh start. This is sometimes needed with bigger changes.
          # Like changing the build host from Ubuntu 20.04 to 22.04 for example.
          # Only update when really needed! Use a <year>.<month>[.<inc>] format.
          prefix-key: "v2026.11-rust"
          # Only main saves caches. The repository can keep 10 GB of caches, and the ones saved by pull
          # requests and other branches were mostly copies of main's that pushed other caches out.
          save-if: ${{ github.ref == 'refs/heads/main' || github.ref == 'refs/heads/ci/build-speed' }}
      # End Enable Rust Caching

      # Run cargo tests
      # First test all features together, afterwards test them separately.
      # enable_mimalloc only selects the allocator, so it is tested on and off, not with every combination.
      - name: "test features: sqlite,mysql,postgresql,enable_mimalloc,s3"
        id: test_sqlite_mysql_postgresql_mimalloc_s3
        if: ${{ !cancelled() }}
        run: |
          cargo test --profile ci --features sqlite,mysql,postgresql,enable_mimalloc,s3

      - name: "test features: sqlite,mysql,postgresql"
        id: test_sqlite_mysql_postgresql
        if: ${{ !cancelled() }}
        run: |
          cargo test --profile ci --features sqlite,mysql,postgresql

      - name: "test features: sqlite"
        id: test_sqlite
        if: ${{ !cancelled() }}
        run: |
          cargo test --profile ci --features sqlite

      - name: "test features: mysql"
        id: test_mysql
        if: ${{ !cancelled() }}
        run: |
          cargo test --profile ci --features mysql

      - name: "test features: postgresql"
        id: test_postgresql
        if: ${{ !cancelled() }}
        run: |
          cargo test --profile ci --features postgresql

      # The test seeder only exists with this feature, which no release build has
      - name: "test features: sqlite,unsafe_test_mode"
        id: test_unsafe_test_mode
        if: ${{ !cancelled() }}
        run: |
          cargo test --profile ci --features sqlite,unsafe_test_mode
      # End Run cargo tests


      # Run cargo clippy, and fail on warnings
      - name: "clippy features: sqlite,mysql,postgresql,enable_mimalloc,s3"
        id: clippy
        if: ${{ !cancelled() && matrix.channel == 'rust-toolchain' }}
        run: |
          cargo clippy --profile ci --features sqlite,mysql,postgresql,enable_mimalloc,s3

      - name: "clippy features: sqlite,unsafe_test_mode"
        id: clippy_unsafe_test_mode
        if: ${{ !cancelled() && matrix.channel == 'rust-toolchain' }}
        run: |
          cargo clippy --profile ci --features sqlite,unsafe_test_mode
      # End Run cargo clippy


      # Run cargo fmt (Only run on rust-toolchain defined version)
      - name: "check formatting"
        id: formatting
        if: ${{ !cancelled() && matrix.channel == 'rust-toolchain' }}
        run: |
          cargo fmt --all -- --check
      # End Run cargo fmt


      # Check for any previous failures, if there are stop, else continue.
      # This is useful so all test/clippy/fmt actions are done, and they can all be addressed
      - name: "Some checks failed"
        if: ${{ failure() }}
        env:
          TEST_DB_M_S3: ${{ steps.test_sqlite_mysql_postgresql_mimalloc_s3.outcome }}
          TEST_DB: ${{ steps.test_sqlite_mysql_postgresql.outcome }}
          TEST_SQLITE: ${{ steps.test_sqlite.outcome }}
          TEST_MYSQL: ${{ steps.test_mysql.outcome }}
          TEST_POSTGRESQL: ${{ steps.test_postgresql.outcome }}
          TEST_UNSAFE_TEST_MODE: ${{ steps.test_unsafe_test_mode.outcome }}
          CLIPPY: ${{ steps.clippy.outcome }}
          CLIPPY_UNSAFE_TEST_MODE: ${{ steps.clippy_unsafe_test_mode.outcome }}
          FMT: ${{ steps.formatting.outcome }}
        run: |
          echo "### :x: Checks Failed!" >> "${GITHUB_STEP_SUMMARY}"
          echo "" >> "${GITHUB_STEP_SUMMARY}"
          echo "|Job|Status|" >> "${GITHUB_STEP_SUMMARY}"
          echo "|---|------|" >> "${GITHUB_STEP_SUMMARY}"
          echo "|test (sqlite,mysql,postgresql,enable_mimalloc,s3)|${TEST_DB_M_S3}|" >> "${GITHUB_STEP_SUMMARY}"
          echo "|test (sqlite,mysql,postgresql)|${TEST_DB}|" >> "${GITHUB_STEP_SUMMARY}"
          echo "|test (sqlite)|${TEST_SQLITE}|" >> "${GITHUB_STEP_SUMMARY}"
          echo "|test (mysql)|${TEST_MYSQL}|" >> "${GITHUB_STEP_SUMMARY}"
          echo "|test (postgresql)|${TEST_POSTGRESQL}|" >> "${GITHUB_STEP_SUMMARY}"
          echo "|test (sqlite,unsafe_test_mode)|${TEST_UNSAFE_TEST_MODE}|" >> "${GITHUB_STEP_SUMMARY}"
          echo "|clippy (sqlite,mysql,postgresql,enable_mimalloc,s3)|${CLIPPY}|" >> "${GITHUB_STEP_SUMMARY}"
          echo "|clippy (sqlite,unsafe_test_mode)|${CLIPPY_UNSAFE_TEST_MODE}|" >> "${GITHUB_STEP_SUMMARY}"
          echo "|fmt|${FMT}|" >> "${GITHUB_STEP_SUMMARY}"
          echo "" >> "${GITHUB_STEP_SUMMARY}"
          echo "Please check the failed jobs and fix where needed." >> "${GITHUB_STEP_SUMMARY}"
          echo "" >> "${GITHUB_STEP_SUMMARY}"
          exit 1


      # Check for any previous failures, if there are stop, else continue.
      # This is useful so all test/clippy/fmt actions are done, and they can all be addressed
      - name: "All checks passed"
        if: ${{ success() }}
        run: |
          echo "### :tada: Checks Passed!" >> "${GITHUB_STEP_SUMMARY}"
          echo "" >> "${GITHUB_STEP_SUMMARY}"