main.yml

name: main

on:
  push:
    branches:
      - main
  pull_request:
    branches:
      - main
  release:
    types:
      - published

env:
  # Setting these variables allows .NET CLI to use rich color codes in console output
  TERM: xterm
  DOTNET_SYSTEM_CONSOLE_ALLOW_ANSI_COLOR_REDIRECTION: true
  # Skip boilerplate output
  DOTNET_SKIP_FIRST_TIME_EXPERIENCE: true
  DOTNET_NOLOGO: true
  DOTNET_CLI_TELEMETRY_OPTOUT: true

# Note that as much as we'd love to avoid repetitive work, splitting the pipeline into separate jobs
# makes it very difficult to share artifacts between them. Even if we succeed, we'll still end up
# pushing and pulling gigabytes worth of data, which makes the jobs so much slower that we might as
# well just repeat the checkout-restore-build steps instead.

# Having a setup that involves separate jobs gives us significant benefits, on the other hand, namely:
# - Most of the jobs can run in parallel, which reduces the overall execution time significantly,
#   despite the repetitive work.
# - We can catch more issues this way, for example if the formatting job fails, we can still see the
#   the test results too.
# - If one of the jobs fails due to reasons unrelated to our code (e.g. NuGet server is down), we get
#   the option to rerun only that job, saving us time.
# - It's easier to understand what each job does (and later, read its output) because the scope is much
#   more narrow.
# - We can set permissions on a more granular (per-job) level, which allows us to expose only a few select
#   steps to more sensitive access scopes.

jobs:
  # Determine version
  version:
    runs-on: ubuntu-latest
    permissions:
      contents: read

    steps:
      - name: Determine stable version
        id: stable-version
        if: ${{ github.event_name == 'release' }}
        run: |
          if ! [[ "${{ github.event.release.tag_name }}" =~ ^[0-9]+\.[0-9]+\.[0-9]+(-[a-zA-Z].*)?$ ]]; then
              echo "Invalid version: ${{ github.event.release.tag_name }}"
              exit 1
          fi
          
          echo "version=${{ github.event.release.tag_name }}" >> $GITHUB_OUTPUT

      - name: Determine prerelease version
        id: pre-version
        if: ${{ github.event_name != 'release' }}
        run: |
          hash="${{ github.event.pull_request.head.sha || github.sha }}"
          echo "version=0.0.0-ci-${hash:0:7}" >> $GITHUB_OUTPUT

    outputs:
      version: ${{ steps.stable-version.outputs.version || steps.pre-version.outputs.version }}

  # Check formatting
  format:
    runs-on: ubuntu-latest
    permissions:
      contents: read

    steps:
      - name: Checkout
        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7

      - name: Install .NET
        uses: actions/setup-dotnet@6bd8b7f7774af54e05809fcc5431931b3eb1ddee # v4.0.1

      - name: Validate format
        run: dotnet format --verify-no-changes

  # Run tests
  test:
    strategy:
      fail-fast: false
      matrix:
        os:
          - ubuntu-latest
          # Windows runners don't support Linux Docker containers (needed for tests),
          # so we currently cannot run tests on Windows.
          # - windows-latest

    runs-on: ${{ matrix.os }}
    permissions:
      contents: read

    steps:
      - name: Checkout
        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7

      - name: Install .NET
        uses: actions/setup-dotnet@6bd8b7f7774af54e05809fcc5431931b3eb1ddee # v4.0.1

      - name: Run restore
        run: dotnet restore

      - name: Run build
        run: >
          dotnet build
          --no-restore
          --configuration Release

      - name: Run tests
        run: >
          dotnet test
          --no-restore
          --no-build
          --configuration Release
          ${{ runner.os == 'Windows' && '-p:IncludeNetCoreAppTargets=false' || '' }}
          --logger "GitHubActions;summary.includePassedTests=true;summary.includeSkippedTests=true"
          --collect:"XPlat Code Coverage"
          --
          RunConfiguration.CollectSourceInformation=true
          DataCollectionRunSettings.DataCollectors.DataCollector.Configuration.Format=opencover

      - name: Upload coverage
        uses: codecov/codecov-action@e28ff129e5465c2c0dcc6f003fc735cb6ae0c673 # v4.5.0
        with:
          token: ${{ secrets.CODECOV_TOKEN }}

  # Pack the output into NuGet packages
  pack:
    needs: version
    runs-on: ubuntu-latest
    permissions:
      actions: write
      contents: read

    steps:
      - name: Checkout
        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7

      - name: Install .NET
        uses: actions/setup-dotnet@6bd8b7f7774af54e05809fcc5431931b3eb1ddee # v4.0.1

      - name: Run restore
        run: dotnet restore

      - name: Run build
        run: >
          dotnet build
          --no-restore
          --configuration Release
          -p:ContinuousIntegrationBuild=true

      - name: Run pack
        run: >
          dotnet pack
          -p:Version=${{ needs.version.outputs.version }}
          -p:ContinuousIntegrationBuild=true
          --no-restore
          --no-build
          --configuration Release

      - name: Upload artifacts
        uses: actions/upload-artifact@834a144ee995460fba8ed112a2fc961b36a5ec5a # v4.3.6
        with:
          name: packages
          path: "**/*.nupkg"

  # Dispatch a separate deployment workflow in a private repository
  deploy:
    # Remove this if we end up adding more environments than just NuGet
    if:  ${{ github.event_name == 'release' }}

    needs:
      - version
      - format
      - test
      - pack

    strategy:
      matrix:
        environment:
          - nuget
          # - myget
        exclude:
          # Exclude NuGet if not triggered by a release event
          # https://stackoverflow.com/questions/65384420/how-do-i-make-a-github-action-matrix-element-conditional
          - environment: ${{ github.event_name != 'release' && 'nuget' }}

    runs-on: ubuntu-latest
    permissions: {} # no permissions required

    steps:
      - name: Dispatch deployment
        env:
          GITHUB_TOKEN: ${{ secrets.DEPLOYMENT_GITHUB_TOKEN }}
        run: >
          gh workflow run deploy-passwordless-dotnet
          --repo bitwarden/passwordless-devops
          --field repository=${{ github.repository }}
          --field run-id=${{ github.run_id }}
          --field artifact=packages
          --field environment=${{ matrix.environment }}
          --field version=${{ needs.version.outputs.version }}