minify.yml

name: Minify

on:
    push:
        branches: [main]
        paths:
            - "list/*"
            - "scripts/*"
            - ".github/workflows/minify.yml"

    schedule:
        - cron: "0 0 * * *"

    workflow_dispatch:

jobs:
    psl:
        name: PSL
        runs-on: ubuntu-latest

        steps:
            - uses: actions/checkout@v4

            - uses: actions/setup-node@v4
              with:
                  node-version: 20.x

            - run: mkdir -p list

            - name: Check if the old file exists
              run: |
                  if [ -f list/public_suffix_list.dat ]; then
                      echo "Old file exists"
                      echo "old_file_exists=true" >> $GITHUB_ENV
                  else
                      echo "Old file does not exist"
                      echo "old_file_exists=false" >> $GITHUB_ENV
                  fi

            - name: Backup the old file
              if: ${{ env.old_file_exists }} == 'true'
              run: cp list/public_suffix_list.dat list/public_suffix_list.dat.old

            - name: Download public_suffix_list.dat
              run: curl -o list/public_suffix_list.dat https://publicsuffix.org/list/public_suffix_list.dat

            - name: Check if the file has changed
              run: |
                  if [ -f list/public_suffix_list.dat.old ]; then
                      git diff --exit-code list/public_suffix_list.dat list/public_suffix_list.dat.old
                      if [ $? -eq 0 ]; then
                          echo "No changes in the file"
                          echo "changed=false" >> $GITHUB_ENV
                      else
                          echo "Changes detected in the file"
                          echo "changed=true" >> $GITHUB_ENV
                      fi
                  else
                      echo "Old file does not exist"
                      echo "changed=true" >> $GITHUB_ENV
                  fi

            - name: Minify PSL
              if: ${{ env.changed }} == 'true'
              run: |
                  OUTPUT=$(node scripts/minify.js)
                  echo "${OUTPUT}"
                  echo "minify_percent=${OUTPUT}" >> $GITHUB_ENV

            - name: Commit
              if: ${{ env.changed }} == 'true'
              env:
                  MINIFY_PERCENT: ${{ env.minify_percent }}
              run: |
                  git config --global user.name "GitHub Actions"
                  git config --global user.email "actions@github.com"
                  git add list/*.dat
                  git commit -m "chore: minify PSL (saved ${MINIFY_PERCENT})"
                  git push