dispatch-build-bottle.yml

name: Dispatch build bottle (for chosen OS versions)

run-name: Build bottle of ${{ inputs.formula }} on ${{ inputs.runner }}

on:
  workflow_dispatch:
    inputs:
      runner:
        description: Build runner(s) (macOS version or Linux)
        required: true
      formula:
        description: Formula name
        required: true
      timeout:
        description: "Build timeout (in minutes, default: 60 minutes)"
        type: number
        default: 60
        required: false
      issue:
        description: Issue number, where comment on failure would be posted
        type: number
        required: false
      upload:
        description: "Upload built bottles? (default: false)"
        type: boolean
        default: false
        required: false

env:
  HOMEBREW_DEVELOPER: 1
  HOMEBREW_GITHUB_ACTIONS: 1
  HOMEBREW_NO_AUTO_UPDATE: 1
  HOMEBREW_NO_INSTALL_FROM_API: 1
  HOMEBREW_NO_BUILD_ERROR_ISSUES: 1
  RUN_URL: ${{github.event.repository.html_url}}/actions/runs/${{github.run_id}}
  DISPATCH_BUILD_BOTTLE_SENDER: ${{ github.event.sender.login }}
  DISPATCH_BUILD_BOTTLE_FORMULA: ${{ inputs.formula }}
  DISPATCH_BUILD_BOTTLE_RUNNER: ${{ inputs.runner }}
  DISPATCH_BUILD_BOTTLE_TIMEOUT: ${{ inputs.timeout }}
  DISPATCH_BUILD_BOTTLE_ISSUE: ${{ inputs.issue }}
  DISPATCH_BUILD_BOTTLE_UPLOAD: ${{ inputs.upload }}

defaults:
  run:
    shell: bash -xeuo pipefail {0}

# Intentionally the same as dispatch-rebottle
concurrency: bottle-${{ github.event.inputs.formula }}

permissions:
  contents: read

jobs:
  prepare:
    runs-on: ubuntu-22.04
    container:
      image: ghcr.io/homebrew/ubuntu22.04:master
    outputs:
      runners: ${{steps.runner-matrix.outputs.result}}
    steps:
      - name: Set up Homebrew
        id: set-up-homebrew
        uses: Homebrew/actions/setup-homebrew@master
        with:
          core: true
          cask: false
          test-bot: false

      - name: Prepare runner matrix
        id: runner-matrix
        uses: actions/github-script@v7
        with:
          script: |
            const macOSRegex = /^(\d+(?:\.\d+)?)(?:-(arm64|x86_64))?$/;
            const linuxRegex = /^(?:ubuntu-|linux-self-hosted-)/;
            return context.payload.inputs.runner.split(",")
                                                .map(s => s.trim())
                                                .filter(Boolean)
                                                .map(s => {
              const macOSMatch = macOSRegex.exec(s);
              if (macOSMatch && s != "11-arm64") // Ephemeral runners
                return {runner: `${macOSMatch[1]}-${macOSMatch[2] ?? "x86_64"}-${context.runId}-dispatch`, cleanup: false};
              else if (linuxRegex.test(s))
                return {
                  runner:    s,
                  container: {
                    image:   "ghcr.io/homebrew/ubuntu22.04:master",
                    options: "--user=linuxbrew -e GITHUB_ACTIONS_HOMEBREW_SELF_HOSTED"
                  },
                  workdir:   "/github/home",
                  cleanup:   false
                };
              else
                return {runner: s, cleanup: true};
            });

      - name: Ensure homebrew/core is up-to-date
        if: endsWith(github.ref, 'master')
        run: brew update

      - name: Check for existing bottle
        shell: brew ruby {0}
        env:
          HOMEBREW_RUNNER_MATRIX: ${{ steps.runner-matrix.outputs.result }}
          HOMEBREW_DISPATCHED_FORMULA: ${{ inputs.formula }}
        run: |
          matrix = JSON.parse(ENV.fetch("HOMEBREW_RUNNER_MATRIX"))
          formula_name = ENV.fetch("HOMEBREW_DISPATCHED_FORMULA")
          formula = Formulary.factory(formula_name)
          exit_code = 0

          matrix.each do |entry|
            runner = entry.fetch("runner")

            bottle_tag = if runner.start_with?("ubuntu") || runner.start_with?("linux")
              Utils::Bottles.tag(:x86_64_linux)
            elsif runner.match?(/^\d+-/)
              os_version, arch, _ = *runner.split("-")
              system = MacOSVersion.new(os_version).to_sym
              arch = arch.to_sym

              Utils::Bottles::Tag.new(system:, arch:)
            end
            next if bottle_tag.blank?

            bottled_on_current_runner = formula.bottle_specification.tag?(bottle_tag, no_older_versions: true)
            next unless bottled_on_current_runner

            exit_code = 1
            puts GitHub::Actions::Annotation.new(
              :error,
              "#{formula_name} already has a bottle for #{bottle_tag}!",
            )
          end

          exit exit_code

  bottle:
    needs: prepare
    strategy:
      matrix:
        include: ${{fromJson(needs.prepare.outputs.runners)}}
    runs-on: ${{matrix.runner}}
    container: ${{matrix.container}}
    timeout-minutes: ${{fromJson(github.event.inputs.timeout)}}
    permissions:
      contents: read
    defaults:
      run:
        shell: /bin/bash -xeuo pipefail {0}
        working-directory: ${{matrix.workdir || github.workspace}}
    env:
      GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
      HOMEBREW_GITHUB_API_TOKEN: ${{secrets.GITHUB_TOKEN}}
      BOTTLES_DIR: ${{ matrix.workdir || github.workspace }}/bottles
    steps:
      - name: ${{inputs.formula}}
        id: print_details
        run: |
          echo sender="${DISPATCH_BUILD_BOTTLE_SENDER}"
          echo formula="${DISPATCH_BUILD_BOTTLE_FORMULA}"
          echo runner="${DISPATCH_BUILD_BOTTLE_RUNNER}"
          echo timeout="${DISPATCH_BUILD_BOTTLE_TIMEOUT}"
          echo issue="${DISPATCH_BUILD_BOTTLE_ISSUE}"
          echo upload="${DISPATCH_BUILD_BOTTLE_UPLOAD}"

      - name: Pre-test steps
        uses: Homebrew/actions/pre-build@master
        with:
          bottles-directory: ${{ env.BOTTLES_DIR }}
          cleanup: ${{ matrix.cleanup }}

      - working-directory: ${{ env.BOTTLES_DIR }}
        run: |
          brew test-bot \
            --only-formulae \
            --keep-old \
            --only-json-tab \
            --skip-online-checks \
            --skip-dependents \
            "${DISPATCH_BUILD_BOTTLE_FORMULA}"

      - name: Post-build steps
        if: always()
        uses: Homebrew/actions/post-build@master
        with:
          runner: ${{ matrix.runner }}
          cleanup: ${{ matrix.cleanup }}
          bottles-directory: ${{ env.BOTTLES_DIR }}
          logs-directory: ${{ env.BOTTLES_DIR }}/logs

  upload:
    permissions:
      contents: read
      issues: write # for Homebrew/actions/post-comment
      pull-requests: write # for `gh pr edit`
      attestations: write # for actions/attest-build-provenance
      id-token: write # for actions/attest-build-provenance
    runs-on: ubuntu-latest
    needs: bottle
    if: inputs.upload
    container:
      image: ghcr.io/homebrew/ubuntu22.04:master
    env:
      HOMEBREW_SIMULATE_MACOS_ON_LINUX: 1
      GH_REPO: ${{github.repository}}
      GH_NO_UPDATE_NOTIFIER: 1
      GH_PROMPT_DISABLED: 1
      BOTTLE_BRANCH: ${{github.actor}}/dispatch/${{inputs.formula}}/${{github.run_id}}
      BOTTLES_DIR: ${{ github.workspace }}/bottles
    steps:
      - name: Set up Homebrew
        id: set-up-homebrew
        uses: Homebrew/actions/setup-homebrew@master
        with:
          core: true
          cask: false
          test-bot: false

      - name: Download bottles from GitHub Actions
        uses: actions/download-artifact@v4
        with:
          pattern: bottles_*
          path: ${{ env.BOTTLES_DIR }}
          merge-multiple: true

      - name: Configure Git user
        id: git-user-config
        uses: Homebrew/actions/git-user-config@master
        with:
          username: ${{ (github.actor != 'github-actions[bot]' && github.actor) || 'BrewTestBot' }}

      - name: Set up commit signing
        uses: Homebrew/actions/setup-commit-signing@master
        with:
          signing_key: ${{ secrets.BREWTESTBOT_GPG_SIGNING_SUBKEY }}

      - name: Generate build provenance
        uses: actions/attest-build-provenance@v1
        with:
          subject-path: ${{ env.BOTTLES_DIR }}/*.tar.gz

      - name: Checkout branch for bottle commit
        working-directory: ${{steps.set-up-homebrew.outputs.repository-path}}
        run: git checkout -b "$BOTTLE_BRANCH" origin/master

      - name: Upload bottles to GitHub Packages
        id: upload
        env:
          HOMEBREW_GITHUB_PACKAGES_USER: brewtestbot
          HOMEBREW_GITHUB_PACKAGES_TOKEN: ${{secrets.HOMEBREW_CORE_GITHUB_PACKAGES_TOKEN}}
          HOMEBREW_GPG_PASSPHRASE: ${{ secrets.BREWTESTBOT_GPG_SIGNING_SUBKEY_PASSPHRASE }}
          BREWTESTBOT_NAME_EMAIL: "BrewTestBot <1589480+BrewTestBot@users.noreply.github.com>"
          HOMEBREW_CORE_PATH: ${{steps.set-up-homebrew.outputs.repository-path}}
        working-directory: ${{ env.BOTTLES_DIR }}
        run: |
          brew pr-upload --verbose --keep-old --committer="$BREWTESTBOT_NAME_EMAIL" --root-url="https://ghcr.io/v2/homebrew/core"
          echo "title=$(git -C "$HOMEBREW_CORE_PATH" log -1 --format='%s' "$BOTTLE_BRANCH")" >> "$GITHUB_OUTPUT"
          echo "head_sha=$(git -C "$HOMEBREW_CORE_PATH" rev-parse HEAD)" >> "$GITHUB_OUTPUT"

      - name: Push commits
        uses: Homebrew/actions/git-try-push@master
        with:
          token: ${{secrets.HOMEBREW_GITHUB_PUBLIC_REPO_TOKEN}}
          directory: ${{steps.set-up-homebrew.outputs.repository-path}}
          branch: ${{env.BOTTLE_BRANCH}}
        env:
          GIT_COMMITTER_NAME: BrewTestBot
          GIT_COMMITTER_EMAIL: 1589480+BrewTestBot@users.noreply.github.com
          HOMEBREW_GPG_PASSPHRASE: ${{ secrets.BREWTESTBOT_GPG_SIGNING_SUBKEY_PASSPHRASE }}

      - name: Open PR with bottle commit
        id: create-pr
        uses: Homebrew/actions/create-pull-request@master
        with:
          token: ${{secrets.HOMEBREW_GITHUB_PUBLIC_REPO_TOKEN}}
          base: ${{github.ref}}
          head: ${{env.BOTTLE_BRANCH}}
          title: ${{steps.upload.outputs.title}}
          body: Created by [`brew dispatch-build-bottle`](${{env.RUN_URL}})
          labels: CI-published-bottle-commits
          reviewers: ${{github.actor}}

      - name: Enable automerge
        env:
          GH_TOKEN: ${{secrets.HOMEBREW_GITHUB_PUBLIC_REPO_TOKEN}}
          NODE_ID: ${{steps.create-pr.outputs.node_id}}
          SHA: ${{steps.upload.outputs.head_sha}}
          MUTATION: |-
            mutation ($input: EnablePullRequestAutoMergeInput!) {
              enablePullRequestAutoMerge(input: $input) {
                clientMutationId
              }
            }
        run: |
          gh api graphql \
            --field "input[pullRequestId]=$NODE_ID" \
            --field "input[expectedHeadOid]=$SHA" \
            --raw-field query="$MUTATION"

      - name: Approve PR
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          PR: ${{steps.create-pr.outputs.number}}
        run: |
          gh api \
            --method POST \
            --header "Accept: application/vnd.github+json" \
            --header "X-GitHub-Api-Version: 2022-11-28" \
            "/repos/$GITHUB_REPOSITORY/pulls/$PR/reviews" \
            --field "event=APPROVE"

      - name: Wait until PR is merged
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          PR: ${{ steps.create-pr.outputs.number }}
        run: |
          # Hold the `concurrency` lock for up to another 10 minutes while the PR has not yet been merged.
          sleep 300

          attempt=0
          max_attempts=5
          sleep_time=10

          while (( attempt < max_attempts ))
          do
            if jq --exit-status .merged_at
            then
              break
            fi < <( # We could use `gh pr view`, but that uses 2 API calls.
              gh api \
                --header "Accept: application/vnd.github+json" \
                --header "X-GitHub-Api-Version: 2022-11-28" \
                "/repos/$GITHUB_REPOSITORY/pulls/$PR"
            )

            sleep "$sleep_time"

            sleep_time=$(( sleep_time * 2 ))
            attempt=$(( attempt + 1 ))
          done

  comment:
    permissions:
      issues: write # for Homebrew/actions/post-comment
      pull-requests: write # for Homebrew/actions/post-comment
    needs: [bottle, upload]
    if: failure() && inputs.issue > 0
    runs-on: ubuntu-latest
    steps:
      - name: Post comment on failure
        uses: Homebrew/actions/post-comment@master
        with:
          token: ${{secrets.GITHUB_TOKEN}}
          issue: ${{inputs.issue}}
          body: ":x: @${{github.actor}} bottle request for ${{inputs.formula}} [failed](${{env.RUN_URL}})."
          bot_body: ":x: Bottle request for ${{inputs.formula}} [failed](${{env.RUN_URL}})."
          bot: BrewTestBot