main.yml

name: Pull Files from Another Repository on Push
env:
  SOURCE_REPO: lwcorp/lwserver
  AUTOMATIC_MONITOR: true
  FILES: "*.au3 LICENSE" # separate multiple entries with ,
  FILES_NEW: "*.au3 LICENSE*" # separate multiple entries with ,
  EXTRA: mv LICENSE LICENSE_LWServer # do an extra command like renaming
  USERNAME: ${{ github.actor }}
  ADDRESS_SUFFIX: users.noreply.github.com
  TOKEN_NAME: ACCESS_TOKEN # name of token defined in the target repo's settings, needed for private repos
  # SOURCE_BRANCH: source_alternate_branch # uncomment to takes files from a non default source branch
  # TARGET_BRANCH: target_alternate_branch # uncomment to monitor a non default target branch
  # TARGET_PATH: target_alternate_path # uncomment to monitor a non default target branch
  THE_SERVER: ${{ github.server_url }}
  PATH_SOURCE_CHECKOUT: temp_folder
  THE_SECRET: ${{ secrets.TOKEN_NAME || 'default_value' }}

on: # Remove # below for non default branches
  workflow_dispatch:
  push:
#    branches:
#      - ${{ env.TARGET_BRANCH }}
#    paths:
#      - ${{ env.TARGET_PATH }}

jobs:
  pull-file:
    runs-on: ubuntu-latest
    steps:
      - name: Check whether to automatically monitor
        if: ${{ github.event_name != 'workflow_dispatch' && env.AUTOMATIC_MONITOR == false }}
        run: |
          echo "Set not to run automatically. Exiting."
          echo "exiting1=true" >> $GITHUB_ENV

      - name: Checkout
        if: env.exiting1 != 'true'
        uses: actions/checkout@v3

      - name: Checkout source with token and branch
        if: env.exiting1 != 'true' && env.THE_SECRET != 'default_value' && env.SOURCE_BRANCH
        uses: actions/checkout@v3
        with:
          repository: ${{ env.SOURCE_REPO }}
          ref: ${{ env.SOURCE_BRANCH }}
          token: ${{ secrets[env.TOKEN_NAME] }}
          path: ${{ env.PATH_SOURCE_CHECKOUT }}

      - name: Checkout source with token but without branch
        if: env.exiting1 != 'true' && env.THE_SECRET != 'default_value' && !env.SOURCE_BRANCH
        uses: actions/checkout@v3
        with:
          repository: ${{ env.SOURCE_REPO }}
          token: ${{ secrets[env.TOKEN_NAME] }}
          path: ${{ env.PATH_SOURCE_CHECKOUT }}

      - name: Checkout source without token but with branch
        if: env.exiting1 != 'true' && env.THE_SECRET == 'default_value' && env.SOURCE_BRANCH
        uses: actions/checkout@v3
        with:
          repository: ${{ env.SOURCE_REPO }}
          ref: ${{ env.SOURCE_BRANCH }}
          path: ${{ env.PATH_SOURCE_CHECKOUT }}

      - name: Checkout source without token and without branch
        if: env.exiting1 != 'true' && env.THE_SECRET == 'default_value' && !env.SOURCE_BRANCH
        uses: actions/checkout@v3
        with:
          repository: ${{ env.SOURCE_REPO }}
          path: ${{ env.PATH_SOURCE_CHECKOUT }}

      - name: Update
        if: env.exiting1 != 'true'
        run: |
          cd $PATH_SOURCE_CHECKOUT
          $EXTRA
          cp -u $FILES_NEW ../
          cd ..

      - name: Check for changes
        if: env.exiting1 != 'true'
        run: |
          if git diff --quiet; then
            echo "No changes detected. Exiting."
            echo "exiting2=true" >> $GITHUB_ENV
          fi
          
      - name: Commit
        if: env.exiting1 != 'true' && env.exiting2 != 'true'
        run: |
          git config user.name "$USERNAME"
          git config user.email "$USERNAME@$ADDRESS_SUFFIX"
          git add $FILES_NEW
          git commit -m "Pulled files from $THE_SERVER/$SOURCE_REPO."

      - name: Push
        if: env.exiting1 != 'true' && env.exiting2 != 'true'
        run: |
          if [ -n "$TARGET_BRANCH" ]; then
            git push origin $TARGET_BRANCH
          else
            git push
          fi