shrink-credits.yml

name: 'Shrink credits'

on:
  workflow_dispatch:
  push:
    branches:
      - main
    paths:
      - credits.json

jobs:
  build:
    name: 'Shrink credits'
    runs-on: ubuntu-latest

    steps:
      - name: Shrink credits
        uses: actions/checkout@v3
        with:
          fetch-depth: 0

      - uses: actions/github-script@v6
        with:
          script: |
            const { readFileSync, writeFileSync } = require('fs');

            const contents = readFileSync('src/credits.json');
            const shrunk = JSON.stringify(JSON.parse(contents));

            writeFileSync('credits.json', shrunk);

      - name: Checkout gh-pages
        id: checkout
        run: |
          git add credits.json
          git stash
          git checkout gh-pages

          # Prevent conflicts by overwriting the file with the one in the stash
          git checkout stash -- credits.json

          changes=$(git status --porcelain credits.json | wc -l)
          echo "::set-output name=changes::$changes"

      - name: Commit and push changes
        if: ${{ steps.checkout.outputs.changes != 0 }}
        run: |
          git config --global user.name 'zbrabot'
          git config --global user.email 'zbrabot@users.noreply.github.com'

          # Make sure only the credits.json file gets committed
          git reset
          git add credits.json
          git commit --message "chore(credits): automated update at $(date '+%F %T')"

          git push