action.yml

name: Melos action
description: Setup Melos for you GitHub workflow
author: Lukas Klingsbo
branding:
  icon: loader
  color: purple
inputs:
  melos-version:
    description: 'The Melos version to make available on the path'
    required: false
  run-bootstrap:
    description: 'Whether bootstrap should run or not (default: true)'
    required: false
    default: 'true'
  bootstrap-no-example:
    description: 'Whether to pass the --no-example flag to melos bootstrap, this helps avoid race conditions in flutter packages, where pub get can be executed on the example project before melos has had a chance to generate its pubspec_overrides.yaml (default: false)'
    required: false
    default: 'false'
  enforce-lockfile:
    description: 'Whether the versions in the lockfiles should be enforced (default: false)'
    required: false
    default: 'false'
  run-versioning:
    description: 'Whether packages should be versioned (default: false)'
    required: false
    default: 'false'
  run-versioning-prerelease:
    description: 'Whether packages should be versioned as a prerelease (default: false)'
    required: false
    default: 'false'
  include-private:
    description: 'Whether to include or exclude packages with `publish_to: "none"` (default: false)'
    required: false
    default: 'false'
  publish-dry-run:
    description: 'Whether packages should be dry-run published (default: false)'
    required: false
    default: 'false'
  tag:
    description: 'Whether packages should be tagged and pushed to the repository (default: false)'
    required: false
    default: 'false'
  publish:
    description: 'Whether packages should be published to pub.dev (default: false)'
    required: false
    default: 'false'
  create-pr:
    description: 'Whether a PR should be created with the versioning changes (default: false)'
    required: false
    default: 'false'
  git-email:
    description: 'The email to use when committing changes'
    required: false
    default: 'github-actions[bot]@users.noreply.github.com'
  git-name:
    description: 'The name to use when committing changes'
    required: false
    default: 'github-actions[bot]'
runs:
  using: composite
  steps:
    - name: 'Activate melos'
      run: dart pub global activate melos ${{ inputs.melos-version }}
      shell: bash
    - name: 'Run melos bootstrap'
      if: ${{ inputs.run-bootstrap == 'true' }}
      run: dart pub global run melos bootstrap ${{ inputs.enforce-lockfile == 'true' && '--enforce-lockfile' || '' }} ${{ inputs.bootstrap-no-example == 'true' && '--no-example' || '' }}
      shell: bash    
    - name: 'Add melos to PATH'
      run: command -v melos || echo "$HOME/.pub-cache/bin" >> $GITHUB_PATH
      shell: bash
    - name: 'Set up git config for email and name'
      if: ${{ inputs.publish == 'true' || inputs.run-versioning == 'true' || inputs.run-versioning-prerelease == 'true' }}
      run: |
        git config --global user.email "${{ inputs.git-email }}"
        git config --global user.name "${{ inputs.git-name }}"
      shell: bash
    - name: 'Run melos version'
      if: ${{ inputs.run-versioning == 'true' }}
      run: melos version --yes --no-git-tag-version ${{ (inputs.include-private == 'true' && '--all') || '' }}
      shell: bash
    - name: 'Run melos version as a prerelease'
      if: ${{ inputs.run-versioning-prerelease == 'true' }}
      run: melos version --yes --no-git-tag-version --prerelease ${{ (inputs.include-private == 'true' && '--all') || '' }}
      shell: bash
    - name: 'Run melos publish (dry run)'
      if: ${{ inputs.publish-dry-run == 'true' }}
      run: melos publish -y --dry-run
      shell: bash
    - name: 'Create Pull Request with changes'
      if: ${{ inputs.create-pr == 'true' }}
      uses: peter-evans/create-pull-request@v6
      with:
        title: 'chore(release): Publish packages'
        body: 'Prepared all packages to be released to pub.dev'
        branch: release-${{github.run_id}}
    - name: 'Create and push tags to the repository'
      if: ${{ inputs.tag == 'true' }}
      run: |
        # We don't care about errors due to creating new tags (`|| true`)
        # since for all packages that didn't get a new release, the tag already exists.
        melos exec -c 1 ${{ (inputs.include-private == 'true' && '--private') || '--no-private' }} -- git tag \$MELOS_PACKAGE_NAME-v\$MELOS_PACKAGE_VERSION || true
        git push --tags
      shell: bash
    - name: 'Extract tag info'
      if: ${{ inputs.publish == 'true' }}
      env:
        GITHUBREF: ${{ github.ref }}
      # Support semver, e.g.: "refs/tags/my_package-v1.2.3+alpha.1"
      run: |
        PACKAGE_NAME=$(sed -E 's/refs\/tags\/([a-z0-9_]+)-v([0-9]+\.[0-9]+\.[0-9]+.*)$/\1/' <<< $GITHUBREF) && \
        echo "PACKAGE_NAME=$PACKAGE_NAME" >> $GITHUB_ENV
        echo "Package name: $PACKAGE_NAME"
      shell: bash
    - name: 'Installs the Dart SDK and sets up the pipeline for usage with pub.dev (this sets up OIDC)'
      if: ${{ inputs.publish == 'true' }}
      uses: dart-lang/setup-dart@v1
    - name: 'Publish package related to tag to pub.dev'
      if: ${{ inputs.publish == 'true' }}
      run: melos publish -y --no-dry-run --scope=$PACKAGE_NAME
      shell: bash