blog.yml

name: Page Builder by ALMO

on:
  push:
    branches:
      - main
    paths:
      - 'github/workflows/blog.yml'
      - 'posts/**.md'
      - 'config/**'
      - 'assets/**'
      - 'blog_builder/**'
      - '.rebuild'


permissions:
  contents: write
  pages: write
  id-token: write

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


jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout Repository
        uses: actions/checkout@v2

      - name: Setup Git
        run: |
            cd ${{ github.workspace }}
            git config --global user.email "actions@example.com"
            git config --global user.name "GitHub Actions"

      - name: Setup ALMO
        run: |
            git submodule update --init --recursive --remote 

      - name: Compile almo.cpp
        run: |
          cd ./almo
          bash ./scripts/setup.sh
          g++ -std=c++23 ./build/almo.cpp -o ./build/almo

      - name: Checkout Repository
        uses: actions/checkout@v2
        with:
          fetch-depth: 0
      
      - name: Get changed files
        id: changed-files
        uses: tj-actions/changed-files@v44
        with:
          files: 'posts/**.md'
          json: true
      
      - name: Output changed files
        run:  echo "${{ steps.changed-files.outputs.all_changed_files }}" > changed_files.json

      - name: Check need rebuild
        id: check
        uses: tj-actions/changed-files@v44
        with:
          files: |
            .github/workflows/blog.yml
            config/**
            assets/**
            blog_builder/**
            .rebuild
          
      - name: Output need rebuild
        if:  ${{ steps.check.outputs.all_changed_files }} != ""
        run: echo "REBUILD=true" >> $GITHUB_ENV
      
      - name: Generate HTML
        run: |
          python3 blog_builder/build.py

      - name: Update RSS
        run: |
          python3 blog_builder/rss.py
      
      - name: Clean up
        run: |
          rm changed_files.json
          rm tmp.json

      - name: Check change
        run: |
          git diff-index --quiet HEAD || echo "CHANGE=true" >> $GITHUB_ENV
        
      - name: Commit changes
        run: |
          git add .
          git commit --allow-empty -m "Update blog"

      - name: Push changes
        uses: ad-m/github-push-action@master  
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}
          branch: main