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:

  itest:
    strategy:
      fail-fast: false
      matrix:
        include:
          # bootstrap tests
          - java-version: 11 # Have one job on oldest JVM
            buildcmd: ci/test-mill-dev.sh
          - java-version: 17 # Have one job on default JVM
            buildcmd: ci/test-mill-release.sh
          - java-version: 17
            buildcmd: ci/test-mill-bootstrap.sh
          # Just some reporting to enable reasoning about library upgrades
          - java-version: 11
            buildcmd: |
              ./mill -i -k __.ivyDepsTree
              ./mill -i -k __.ivyDepsTree --withRuntime

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

  linux:
    strategy:
      fail-fast: false
      matrix:
        java-version: [11, 17]
        millargs:
          # Run unit and module tests on both oldest and newest Java versions
          - '"{main,scalalib,testrunner,bsp}.__.test"'
        include:
          # For most tests, run them arbitrarily on Java 8 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
          - java-version: 11
            millargs: '"scalajslib.__.test"'
          - java-version: 11
            millargs: '"scalanativelib.__.test"'
          - java-version: 17
            millargs: "contrib._.test"

          # Group these tests together to try and balance out the runtimes of each job
          # Just running in `local` mode since they shouldn't depend on the mode
          - java-version: 17
            millargs: "'example.javalib.__.local.test'"
          - java-version: 17
            millargs: "'example.scalalib.__.local.test'"
          - java-version: 11
            millargs: "'example.thirdparty[{mockito,acyclic,commons-io}].local.test'"
          - java-version: 17
            millargs: "'example.thirdparty[{fansi,jimfs,netty,gatling}].local.test'"
          - java-version: 11
            millargs: "'example.depth.__.local.test'"
          - java-version: 17
            millargs: "'example.extending.__.local.test'"

            # 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.test'"

            # These invalidation tests need to be exercised in all three execution modes
            # to make sure they work with and without -i/--no-server being passed
          - java-version: 17
            millargs: "'integration.invalidation[_].local.test'"
          - java-version: 17
            millargs: "'integration.invalidation[_].fork.test'"
          - java-version: 17
            millargs: "'integration.invalidation[_].server.test'"

          # Check docsite compiles
          - java-version: 17
            millargs: docs.githubPages


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

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

  format-check:
    uses: ./.github/workflows/run-mill-action.yml
    with:
      java-version: '11'
      millargs: mill.scalalib.scalafmt.ScalafmtModule/checkFormatAll __.sources

  scalafix-check:
    uses: ./.github/workflows/run-mill-action.yml
    with:
      java-version: '11'
      millargs: -i -k __.fix --check

  bincompat-check:
    uses: ./.github/workflows/run-mill-action.yml
    with:
      java-version: '11'
      millargs: __.mimaReportBinaryIssues
      continue-on-error: true

  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}.__.test"'
          - java-version: 17
            millargs: '"scalajslib.__.test"'
          - java-version: 11
            millargs: '"example.scalalib.basic.__.fork.test"'
          - java-version: 17
            millargs: "'integration.feature[_].fork.test'"
          - java-version: 11
            millargs: "'integration.invalidation[_].server.test'"
          - java-version: 17
            millargs: "'integration.failure[_].fork.test'"
          - java-version: 11
            millargs: "contrib.__.test"

    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, format-check, bincompat-check, scalafix-check, itest]

    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