# WARNING:
# When extending this action, be aware that $GITHUB_TOKEN allows some write
# access to the GitHub API. This means that it should not evaluate user input in
# a way that allows code injection.

name: Labels

on:
  schedule:
    - cron: '07,17,27,37,47,57 * * * *'
  workflow_call:
    inputs:
      headBranch:
        required: true
        type: string
    secrets:
      NIXPKGS_CI_APP_PRIVATE_KEY:
        required: true
  workflow_dispatch:

concurrency:
  # This explicitly avoids using `run_id` for the concurrency key to make sure that only
  # *one* scheduled run can run at a time.
  group: labels-${{ github.workflow }}-${{ github.event_name }}-${{ github.event.pull_request.number }}
  # PR-triggered runs will be cancelled, but scheduled runs will be queued.
  cancel-in-progress: ${{ github.event_name != 'schedule' }}

# This is used as fallback without app only.
# This happens when testing in forks without setting up that app.
permissions:
  issues: write
  pull-requests: write

defaults:
  run:
    shell: bash

jobs:
  update:
    runs-on: ubuntu-24.04-arm
    if: github.event_name != 'schedule' || github.repository_owner == 'NixOS'
    steps:
      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
        with:
          sparse-checkout: |
            ci/github-script

      - name: Install dependencies
        run: npm install @actions/artifact bottleneck

      # Use a GitHub App, because it has much higher rate limits: 12,500 instead of 5,000 req / hour.
      - uses: actions/create-github-app-token@0f859bf9e69e887678d5bbfbee594437cb440ffe # v2.1.0
        if: vars.NIXPKGS_CI_APP_ID
        id: app-token
        with:
          app-id: ${{ vars.NIXPKGS_CI_APP_ID }}
          private-key: ${{ secrets.NIXPKGS_CI_APP_PRIVATE_KEY }}
          permission-issues: write
          permission-pull-requests: write

      - name: Log current API rate limits
        env:
          GH_TOKEN: ${{ steps.app-token.outputs.token || github.token }}
        run: gh api /rate_limit | jq

      - name: Labels from API data and Eval results
        uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1
        with:
          github-token: ${{ steps.app-token.outputs.token || github.token }}
          retries: 3
          script: |
            require('./ci/github-script/labels.js')({
              github,
              context,
              core,
              dry: context.eventName == 'pull_request'
            })

      - name: Log current API rate limits
        env:
          GH_TOKEN: ${{ steps.app-token.outputs.token || github.token }}
        run: gh api /rate_limit | jq

      - uses: actions/labeler@8558fd74291d67161a8a78ce36a881fa63b766a9 # v5.0.0
        name: Labels from touched files
        if: |
          github.event_name == 'pull_request_target' &&
          !contains(fromJSON(inputs.headBranch).type, 'development')
        with:
          repo-token: ${{ steps.app-token.outputs.token }}
          configuration-path: .github/labeler.yml # default
          sync-labels: true

      - uses: actions/labeler@8558fd74291d67161a8a78ce36a881fa63b766a9 # v5.0.0
        name: Labels from touched files (no sync)
        if: |
          github.event_name == 'pull_request_target' &&
          !contains(fromJSON(inputs.headBranch).type, 'development')
        with:
          repo-token: ${{ steps.app-token.outputs.token }}
          configuration-path: .github/labeler-no-sync.yml
          sync-labels: false

      - uses: actions/labeler@8558fd74291d67161a8a78ce36a881fa63b766a9 # v5.0.0
        name: Labels from touched files (development branches)
        # Development branches like staging-next, haskell-updates and python-updates get special labels.
        # This is to avoid the mass of labels there, which is mostly useless - and really annoying for
        # the backport labels.
        if: |
          github.event_name == 'pull_request_target' &&
          contains(fromJSON(inputs.headBranch).type, 'development')
        with:
          repo-token: ${{ steps.app-token.outputs.token }}
          configuration-path: .github/labeler-development-branches.yml
          sync-labels: true

      - name: Log current API rate limits
        env:
          GH_TOKEN: ${{ steps.app-token.outputs.token || github.token }}
        run: gh api /rate_limit | jq