remove-labels-on-issue-close.yaml

# This workflow will remove almost all labels from closed issues beside ones that could be relevant for future tracking like: "port:", "type:", "priority:", "regression" and "stat:imported"

name: Remove labels when issue is closed

on:
  issues:
    types: [closed] # We want it to run on closed issues

jobs:
  remove_labels:
    name: Calculate and remove issue labels
    if: ${{ !github.event.issue.pull_request  }} # This is needed to distinguish from PRs (which we don't want to affect)
    runs-on: ubuntu-latest
    permissions:
      issues: write

    steps:
      - name: Find labels to remove
        id: data
        run: |
          # Convert labels to array and filter out type: labels
          LABELS_TO_REMOVE=($(echo "$EXISTING_LABELS" | jq -r '.[] | select(startswith("type:") or startswith("port:") or startswith("priority:") or . == "regression" or . == "stat:imported" | not)'))
          
          # Only proceed if we have labels to remove
          if [ ${#LABELS_TO_REMOVE[@]} -gt 0 ]; then
            echo "REMOVE_LABELS=$(IFS=,; echo "${LABELS_TO_REMOVE[*]}")" >> $GITHUB_ENV
            echo "HAS_LABELS=true" >> $GITHUB_ENV
          else
            echo "HAS_LABELS=false" >> $GITHUB_ENV
          fi
        env:
          EXISTING_LABELS: ${{ toJson(github.event.issue.labels.*.name) }}

      - name: Remove labels
        if: ${{ env.REMOVE_LABELS != '' }}
        run: gh issue edit "$NUMBER" --remove-label "$REMOVE_LABELS"
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          GH_REPO: ${{ github.repository }}
          NUMBER: ${{ github.event.issue.number }}