main.yml

name: Collect Bing.com daily images

on:
  schedule:
    - cron:  '0 1 * * *'

jobs:
  # This workflow contains a single job called "build"
  build:
    # The type of runner that the job will run on
    runs-on: ubuntu-latest

    # Steps represent a sequence of tasks that will be executed as part of the job
    steps:
    # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
    - uses: actions/checkout@v2

    - name: Download image
      run: |
        tail=`curl "https://www.bing.com/HPImageArchive.aspx?format=js&idx=0&n=1" | grep -oP "th\?id=.*?jpg"`
        image_name=`echo $tail | grep -oP 'OHR\.\K([a-zA-Z]+)'`
        wget -O "images/${image_name}.jpg" https://bing.com/${tail}

    - name: Upadte README
      run: |
        image=`ls -t images/*.jpg | head -1`
        echo latest image is $image
        sed -i "s/last update:.*/last update:`date +"%F %H:%M:%S"` UTC/g" README.md
        sed -i "s#\!\[\](images/.*)#\!\[\]($image)#g" README.md

    - name: Commit
      run: |
        git config user.name "github-actions[bot]"
        git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
        git status
        git add images/*.jpg README.md
        git commit -m "auto commit from github actions" 
        
    - name: Push
      uses: ad-m/github-push-action@master
      with:
        github_token: ${{ secrets.GITHUB_TOKEN }}
        branch: master