create_issue_branch.yml

name: Create Issue Branch
on:
  issues:
    types: [labeled]
    
concurrency: 
  group: create-branch-${{ github.event.issue.number }}
  cancel-in-progress: true

jobs:
  create_branch:
    runs-on: ubuntu-latest
    if: ${{ github.event.label.name == "Accepted" }}
    steps:
      - name: Checkout
        uses: actions/checkout@v2
        with:
          ref: main
          token: ${{ secrets.GITHUB_TOKEN }}
      - name: Create Branch
        uses: actions/github-script@v5
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            const branchName = `issue-${{ github.event.issue.number }}`
            const branchExists = await github.repos.getBranch({
              owner: context.repo.owner,
              repo: context.repo.repo,
              branch: branchName
            }).catch(() => false)
            if (!branchExists) {
              await github.git.createRef({
                owner: context.repo.owner,
                repo: context.repo.repo,
                ref: `refs/heads/${branchName}`,
                sha: context.sha
              })
            }
            await github.issues.createComment({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: context.issue.number,
              body: `Branch created: ${branchName}`
            })