assigned-label.yml

name: Manage label based on assignee changes

on:
  issues:
    types: [opened, edited, reopened, assigned, unassigned, labeled, unlabeled]

jobs:
  manage_label:
    runs-on: ubuntu-latest
    steps:
      - name: Check if issue has an assignee
        id: check_assignee
        run: echo "::set-output name=assignee::$(jq -r '.issue.assignee.login // empty' $GITHUB_EVENT_PATH)"

      - name: Determine if assignee changes
        id: check_assignee_changes
        run: |
          current_assignee=$(jq -r '.issue.assignee.login // empty' $GITHUB_EVENT_PATH)
          previous_assignee=$(jq -r '.changes.assignee.previous_value // empty' $GITHUB_EVENT_PATH)
          if [ "$current_assignee" != "$previous_assignee" ]; then
            echo "::set-output name=assignee_changes::true"
          else
            echo "::set-output name=assignee_changes::false"
          fi

      - name: Add label if issue has an assignee
        if: steps.check_assignee.outputs.assignee != '' && steps.check_assignee_changes.outputs.assignee_changes == 'true'
        run: |
          echo "Adding label..."
          curl -X POST \
            -H "Accept: application/vnd.github.v3+json" \
            -H "Authorization: Bearer ${{ secrets.GITHUB_TOKEN }}" \
            https://api.github.com/repos/${{ github.repository }}/issues/${{ github.event.issue.number }}/labels \
            -d '["assigned :computer:"]'

      - name: Remove label if issue has no assignee
        if: steps.check_assignee.outputs.assignee == ''
        run: |
          echo "Removing label..."
          curl -X DELETE \
            -H "Accept: application/vnd.github.v3+json" \
            -H "Authorization: Bearer ${{ secrets.GITHUB_TOKEN }}" \
            https://api.github.com/repos/${{ github.repository }}/issues/${{ github.event.issue.number }}/labels/assigned%20%3Acomputer%3A