generate_post_from_pr.yaml

name: Generate post from PR
description: When a PR that has label `post` is merged, this action will generate a new post from the PR's body.

on:
  pull_request:
    types:
      - closed

jobs:
  generate_post:
    if: ${{ github.event.pull_request.merged == true && contains(github.event.pull_request.labels.*.name, 'post') }}
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Create post file
        id: create_post
        run: |
          PR_TITLE=${{ github.event.pull_request.title }}
          DRAFT_TITLE=${PR_TITLE#post/}

          # Remove the draft item
          git rm drafts/${DRAFT_TITLE}

          DATE=$(date +'%Y-%m-%d')
          POST_FILE="posts/${DATE}-${DRAFT_TITLE}.md"
          echo "Target: ${POST_FILE}"
          cat >$POST_FILE <<EOL
          ${{ github.event.pull_request.body }}
          EOL
          echo "Done creating post"

      - name: Commit and push changes
        run: |
          git config --global user.name 'github-actions[bot]'
          git config --global user.email 'github-actions[bot]@users.noreply.github.com'
          git add posts/
          git commit -m "Create post: ${{ github.event.pull_request.title }}"
          git push origin main