ts-ignore-counter.yml

name: TypeScript '@ts-ignore' counter
on: push
jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Dump GitHub context
        env:
          GITHUB_CONTEXT: ${{ toJson(github) }}
        run: echo "$GITHUB_CONTEXT"
      - uses: actions/checkout@v2
        with:
          ref: master
      - name: Count ts-ignore on master
        id: before
        run: |
          export BEFORE=`find . -type f \( -name "*.ts" -or -name "*.tsx" \) -exec grep -o "@ts-ignore" {} \; |wc -l`
          echo "::set-output name=count::$BEFORE"
      - uses: actions/checkout@v2
      - name: Count ts-ignore on this commit
        id: after
        run: |
          export AFTER=`find . -type f \( -name "*.ts" -or -name "*.tsx" \) -exec grep -o "@ts-ignore" {} \; |wc -l`
          echo "::set-output name=count::$AFTER"
      - name: Do the math
        id: result
        run: |
          export BEFORE="${{ steps.before.outputs.count }}"
          export AFTER="${{ steps.after.outputs.count }}"
          if [[ `expr $AFTER - $BEFORE` -gt 0 ]]; then
            export DIFF=`expr $AFTER - $BEFORE`
            export CHANGE="(went up by $DIFF) "
            for n in $(seq $DIFF); do export CHANGE="$CHANGE:broken_heart:"; done
          elif [[ `expr $BEFORE - $AFTER` -gt 0 ]]; then
            export DIFF=`expr $BEFORE - $AFTER`
            export CHANGE="(went down by $DIFF) "
            for n in $(seq $DIFF); do export CHANGE="$CHANGE:sparkles:"; done
          else
            export CHANGE="(unchanged)"
          fi
          echo "::set-output name=comment::**ts-ignore**'s: $AFTER $CHANGE"
      - name: Post issue comment
        run: |
          jq --arg msg "${{ steps.result.outputs.comment }}" -nc '{"body": $msg}' | \
          curl -sL  -X POST -d @- \
            -H "Content-Type: application/json" \
            -H "Authorization: token ${{ secrets.GITHUB_TOKEN }}" \
            "https://api.github.com/repos/$GITHUB_REPOSITORY/commits/$GITHUB_SHA/comments"