pr-checks.yml

name: pr-checks

on:
  pull_request_target:
    branches: ["main"]

  workflow_dispatch:

permissions:
  pull-requests: write
  contents: write

jobs:
  changed_files:
    runs-on: ubuntu-latest
    name: PR automated checks
    steps:
      - uses: actions/checkout@v4
        with:
          repository: ${{ github.event.pull_request.head.repo.full_name }}
          fetch-depth: 0

      - name: Get changed files
        id: changed-files
        uses: tj-actions/changed-files@v42

      - name: Process changed files
        id: changes-errors
        env:
          ALL_CHANGED_FILES: ${{ steps.changed-files.outputs.all_changed_files }}
        run: |
          echo 'errorsStr<<EOF' >> $GITHUB_OUTPUT

          # Filter out .yml files
          FILTERED_FILES=$(echo "$ALL_CHANGED_FILES" | tr ' ' '\n' | grep -v '\.yml$' | tr '\n' ' ')

          for file in $FILTERED_FILES; do
            echo "Processing file: $file"

            if [[ $file != images/* ]] && [[ $file != platforms/* ]] && [[ $file != chains/* ]] ;
            then
              errorText="Only additions of token icons (in the /images folder) or platform logos (in the /platforms folder) are permitted"
              errorOutputText="- Error with \`$file\`: $errorText"
              echo "::error file=$file::$errorText"
              echo "$errorOutputText" >> $GITHUB_OUTPUT
            fi
            
            # Only check token icon additions, not platform icons which don't have anything automated
            if [[ $file == images/assets* ]] ;
            then
              if [[ $file != *.png ]] ;
              then
                errorText="The new icon must be a PNG file"
                errorOutputText="- Error with \`$file\`: $errorText"
                echo "::error file=$file::$errorText"
                echo "$errorOutputText" >> $GITHUB_OUTPUT
              elif [[ ! $file =~ ^images/assets(-[a-z]+)*/[a-z0-9]+\.png$ ]] ;
              then
                errorText="The new icon's filename must be entirely lowercase"
                errorOutputText="- Error with \`$file\`: $errorText"
                echo "::error file=$file::$errorText"
                echo "$errorOutputText" >> $GITHUB_OUTPUT
              fi
            fi
          done

          echo 'EOF' >> $GITHUB_OUTPUT

      - name: Check if errors
        id: check-if-errors
        env:
          ERRORS: ${{ steps.changes-errors.outputs.errorsStr }}
        run: |
          errorsStrLength=${#ERRORS}
          echo "prev output : $ERRORS $errorsStrLength"

          if (( errorsStrLength == 0 ));
          then
            echo 'hasErrors=false'
            echo "hasErrors=false" >> "$GITHUB_OUTPUT"
          else
            echo 'hasErrors=true'
            echo "hasErrors=true" >> "$GITHUB_OUTPUT"
          fi

      - name: Comment on PR if error
        env:
          ERRORS: ${{ steps.changes-errors.outputs.errorsStr }}
          HAS_ERRORS: ${{ steps.check-if-errors.outputs.hasErrors }}
        uses: thollander/actions-comment-pull-request@v2
        if: ${{ env.HAS_ERRORS == 'true' }}
        with:
          message: |
            Changes are required before your pull request can be reviewed:

            ${{ env.ERRORS }}
      - name: Exit with error
        env:
          ERRORS: ${{ steps.changes-errors.outputs.errorsStr }}
          HAS_ERRORS: ${{ steps.check-if-errors.outputs.hasErrors }}
        if: ${{ env.HAS_ERRORS == 'true' }}
        run: |
          mapfile myarray <<< $ERRORS
          for ((i = 0; i < ${#myarray[@]}; ++i)); do
            echo "::error::${myarray[i]}"
          done
          exit 1

  update_tokenlist:
    uses: ./.github/workflows/upload-tokenlist.yml
    needs: changed_files
    if: ${{ !failure() }}
    secrets: inherit