name: Commit Message Check
on:
  pull_request:
    types:
      - opened
      - reopened
      - synchronize

env:
  error_msg: |+
    See the document below for help on formatting commits for the project.

    https://github.com/kata-containers/community/blob/master/CONTRIBUTING.md#patch-forma

jobs:
  commit-message-check:
    runs-on: ubuntu-latest
    name: Commit Message Check
    steps:
    - name: Get PR Commits
      id: 'get-pr-commits'
      uses: tim-actions/get-pr-commits@v1.0.0
      with:
        token: ${{ secrets.GITHUB_TOKEN }}

    - name: DCO Check
      uses: tim-actions/dco@2fd0504dc0d27b33f542867c300c60840c6dcb20
      with:
        commits: ${{ steps.get-pr-commits.outputs.commits }}

    - name: Commit Body Missing Check
      if: ${{ success() || failure() }}
      uses: tim-actions/commit-body-check@v1.0.2
      with:
        commits: ${{ steps.get-pr-commits.outputs.commits }}

    - name: Check Subject Line Length
      if: ${{ success() || failure() }}
      uses: tim-actions/commit-message-checker-with-regex@v0.3.1
      with:
        commits: ${{ steps.get-pr-commits.outputs.commits }}
        pattern: '^.{0,75}(\n.*)*$'
        error: 'Subject too long (max 75)'
        post_error: ${{ env.error_msg }}

    - name: Check Body Line Length
      if: ${{ success() || failure() }}
      uses: tim-actions/commit-message-checker-with-regex@v0.3.1
      with:
        commits: ${{ steps.get-pr-commits.outputs.commits }}
        pattern: '^.+(\n.{0,72})*$|^.+\n\s*[^a-zA-Z\s\n]|^.+\n\S+$'
        error: 'Body line too long (max 72)'
        post_error: ${{ env.error_msg }}

    - name: Check Fixes
      if: ${{ success() || failure() }}
      uses: tim-actions/commit-message-checker-with-regex@v0.3.1
      with:
        commits: ${{ steps.get-pr-commits.outputs.commits }}
        pattern: '\s*Fixes\s*:?\s*(#\d+|github\.com\/kata-containers\/[a-z-.]*#\d+)'
        flags: 'i'
        error: 'No "Fixes" found'
        post_error: ${{ env.error_msg }}
        one_pass_all_pass: 'true'

    - name: Check Subsystem
      if: ${{ success() || failure() }}
      uses: tim-actions/commit-message-checker-with-regex@v0.3.1
      with:
        commits: ${{ steps.get-pr-commits.outputs.commits }}
        pattern: '^[\s\t]*[^:\s\t]+[\s\t]*:'
        error: 'Failed to find subsystem in subject'
        post_error: ${{ env.error_msg }}