link-pr-issue.yml

name: link pr to issue

on:
  pull_request:
    types: [opened, edited, reopened]
  branch_protection_rule:
    types: [edited]

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  link-issue:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v3

      - name: Extract branch name
        shell: bash
        env:
          BRANCH_NAME: ${{ github.head_ref || github.ref_name }} 
        run: |
          issue_id=$(echo ${{ env.BRANCH_NAME }} | grep -oE '[0-9]+$')
          echo "issue_id=$issue_id" >> $GITHUB_ENV

      - name: Check if Issue ID Exists
        id: check
        run: |
          if [ -z "${{ env.issue_id }}" ]; then
            echo "No issue ID found in branch name."
            exit 1
          fi

      - name: Update PR Description
        if: steps.check.outcome == 'success'
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          gh pr edit ${{ github.event.pull_request.number }} --body "$(cat << EOF
          > Always leave the code behind in a better state than you found it.

          Closes #${{ env.issue_id }}
          EOF
          )"