actions.yml

name: CI

# We run full CI on push builds to main and on all pull requests
#
# Tags are automatically published
#
# Manual builds (workflow_dispatch) to the main branch are also published
#
# To maximize bug-catching changes while keeping CI times reasonable, we run:
# - All tests on Linux/Java17
# - Fewer tests on Linux/Java8 and Windows/Java17
# - Fewest tests on Windows/Java8

on:
  push:
    branches:
      - main
    tags:
      - '**'
  pull_request:
  merge_group:
  workflow_dispatch:

# cancel older runs of a pull request;
# this will not cancel anything for normal git pushes
concurrency:
  group: cancel-old-pr-runs-${{ github.workflow }}-${{ github.head_ref || github.run_id }}
  cancel-in-progress: true

jobs:
  build-linux:
    uses: ./.github/workflows/run-mill-action.yml
    with:
      java-version: 11
      millargs: __.compile
      populate_cache: true
  build-windows:
    uses: ./.github/workflows/run-mill-action.yml
    with:
      os: windows-latest
      java-version: 11
      millargs: __.compile
      populate_cache: true

  test-docs:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with: { fetch-depth: 0 }

      - run: git fetch --tags && ./mill -i docs.githubPages

  itest:
    needs: build-linux
    strategy:
      fail-fast: false
      matrix:
        include:
          # bootstrap tests
          - java-version: 11 # Have one job on oldest JVM
            buildcmd: ci/test-mill-dev.sh && ci/test-mill-release.sh && ./mill -i -k __.ivyDepsTree && ./mill -i -k __.ivyDepsTree --withRuntime
          - java-version: 17 # Have one job on default JVM
            buildcmd: ci/test-mill-bootstrap.sh

    uses: ./.github/workflows/run-mill-action.yml
    with:
      java-version: ${{ matrix.java-version }}
      buildcmd: ${{ matrix.buildcmd }}

  linux:
    needs: build-linux
    strategy:
      fail-fast: false
      matrix:

        include:
          # For most tests, run them arbitrarily on Java 11 or Java 17 on Linux, and
          # on the opposite version on Windows below, so we get decent coverage of
          # each test on each Java version and each operating system
          # We also try to group tests together to manuaully balance out the runtimes of each jobs
          - java-version: 17
            millargs: "'{main,scalalib,testrunner,bsp,testkit}.__.testCached'"
          - java-version: 11
            millargs: "'{scalajslib,scalanativelib}.__.testCached'"
          - java-version: 17
            millargs: "contrib.__.testCached"

          - java-version: 17
            millargs: "'example.javalib.__.local.testCached'"
          - java-version: 17
            millargs: "'example.scalalib.__.local.testCached'"
          - java-version: 11
            millargs: "'example.thirdparty[{mockito,acyclic,commons-io}].local.testCached'"
          - java-version: 17
            millargs: "'example.thirdparty[{fansi,jimfs,netty,gatling}].local.testCached'"
          - java-version: 11
            millargs: "'example.{depth,extending}.__.local.testCached'"

            # Most of these integration tests should not depend on which mode they
            # are run in, so just run them in `local`
          - java-version: 11
            millargs: "'integration.{failure,feature,ide}.__.local.testCached'"

            # These invalidation tests need to be exercised in both execution modes
            # to make sure they work with and without -i/--no-server being passed
          - java-version: 17
            millargs: "'integration.invalidation.__.fork.testCached'"
          - java-version: 17
            millargs: "'integration.invalidation.__.server.testCached'"

    uses: ./.github/workflows/run-mill-action.yml
    with:
      java-version: ${{ matrix.java-version }}
      millargs: ${{ matrix.millargs }}

  compiler-bridge:
    needs: build-linux
    uses: ./.github/workflows/run-mill-action.yml
    with:
      java-version: '8'
      millargs: bridge.__.publishLocal
      env-bridge-versions: 'essential'

  lint-autofix:
    needs: build-linux
    uses: ./.github/workflows/run-mill-action.yml
    with:
      java-version: '11'
      buildcmd: ./mill -i mill.scalalib.scalafmt.ScalafmtModule/checkFormatAll __.sources + __.mimaReportBinaryIssues + __.fix --check

  windows:
    needs: build-windows
    strategy:
      fail-fast: false
      matrix:
        include:
          # just run a subset of examples/ on Windows, because for some reason running
          # the whole suite can take hours on windows v.s. half an hour on linux
          - java-version: 11
            millargs: '"{main,scalalib,bsp}.__.testCached"'
          - java-version: 11
            millargs: '"example.scalalib.{basic,web}.__.fork.testCached"'
          - java-version: 17
            millargs: "'integration.{feature,failure}[_].fork.testCached'"
          - java-version: 11
            millargs: "'integration.invalidation[_].server.testCached'"
          - java-version: 11
            millargs: "contrib.__.testCached"

    uses: ./.github/workflows/run-mill-action.yml
    with:
      os: windows-latest
      java-version: ${{ matrix.java-version }}
      millargs: ${{ matrix.millargs }}

  publish-sonatype:
    # when in master repo, publish all tags and manual runs on main
    if: github.repository == 'com-lihaoyi/mill' && (startsWith( github.ref, 'refs/tags/') || (github.ref == 'refs/heads/main' && github.event_name == 'workflow_dispatch' ) )
    needs: [linux, windows, compiler-bridge, lint-autofix, itest, test-docs]

    runs-on: ubuntu-latest

    # only run one publish job for the same sha at the same time
    # e.g. when a main-branch push is also tagged
    concurrency: publish-sonatype-${{ github.sha }}

    env:
      SONATYPE_PGP_SECRET: ${{ secrets.SONATYPE_PGP_SECRET }}
      SONATYPE_USERNAME: ${{ secrets.SONATYPE_DEPLOY_USER }}
      SONATYPE_PASSWORD: ${{ secrets.SONATYPE_DEPLOY_PASSWORD }}
      SONATYPE_PGP_PASSWORD: ${{ secrets.SONATYPE_PGP_PASSWORD }}
      LANG: "en_US.UTF-8"
      LC_MESSAGES: "en_US.UTF-8"
      LC_ALL: "en_US.UTF-8"

    steps:
      - uses: actions/checkout@v4
        with: {fetch-depth: 0}

      - uses: coursier/cache-action@v6

      - uses: actions/setup-java@v4
        with:
          java-version: 8
          distribution: temurin

      - run: ci/release-maven.sh

  release-github:
    # when in master repo, publish all tags and manual runs on main
    if: github.repository == 'com-lihaoyi/mill' && (startsWith( github.ref, 'refs/tags/') || (github.ref == 'refs/heads/main' && github.event_name == 'workflow_dispatch' ) )
    needs: publish-sonatype
    runs-on: ubuntu-latest

    env:
      REPO_ACCESS_TOKEN: ${{ secrets.REPO_ACCESS_TOKEN }}

    steps:
      - uses: actions/checkout@v4
        with: {fetch-depth: 0}

      - uses: coursier/cache-action@v6

      - uses: actions/setup-java@v4
        with:
          java-version: 8
          distribution: temurin

      - run: ./mill -i uploadToGithub $REPO_ACCESS_TOKEN