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path: root/.github/workflows/check_misc.yml
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name: Misc
on: [push, pull_request, merge_group]

concurrency:
  group: ${{ github.workflow }} / ${{ startsWith(github.event_name, 'pull') && github.ref_name || github.sha }}
  cancel-in-progress: ${{ startsWith(github.event_name, 'pull') }}

permissions:
  contents: read

jobs:
  checks:
    name: Miscellaneous checks

    permissions:
      contents: write # for Git to git push

    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
        with:
          token: ${{ (github.repository == 'ruby/ruby' && !startsWith(github.event_name, 'pull')) && secrets.MATZBOT_GITHUB_TOKEN || secrets.GITHUB_TOKEN }}

      - uses: ./.github/actions/setup/directories
        with:
          makeup: true
          # Skip overwriting MATZBOT_GITHUB_TOKEN
          checkout: '' # false (ref: https://github.com/actions/runner/issues/2238)

      - name: Check if C-sources are US-ASCII
        run: |
          grep -r -n --include='*.[chyS]' --include='*.asm' $'[^\t-~]' -- . && exit 1 || :

      - name: Check for trailing spaces
        run: |
          git grep -I -n $'[\t ]$' -- '*.rb' '*.[chy]' '*.rs' '*.yml' && exit 1 || :
          git grep -n $'^[\t ][\t ]*$' -- '*.md' && exit 1 || :

      - name: Check for bash specific substitution in configure.ac
        run: |
          git grep -n '\${[A-Za-z_0-9]*/' -- configure.ac && exit 1 || :

      - name: Check for header macros
        run: |
          fail=
          for header in ruby/*.h; do
            git grep -l -F -e $header -e HAVE_`echo $header | tr a-z./ A-Z__` -- . > /dev/null && continue
            fail=1
            echo $header
          done
          exit $fail
        working-directory: include

      - name: Generate docs
        id: docs
        run: |
          ruby -W0 --disable-gems -I./lib tool/rdoc-srcdir -q --op html .
          echo htmlout=ruby-html-${GITHUB_SHA:0:10} >> $GITHUB_OUTPUT
        # Generate only when document commit/PR
        if: >-
          ${{false
          || contains(github.event.head_commit.message, '[ruby/rdoc]')
          || contains(github.event.head_commit.message, '[DOC]')
          || contains(github.event.head_commit.message, 'Document')
          || contains(github.event.pull_request.title, '[DOC]')
          || contains(github.event.pull_request.title, 'Document')
          || contains(github.event.pull_request.labels.*.name, 'Documentation')
          }}

      - name: Upload docs
        uses: actions/upload-artifact@v4
        with:
          path: html
          name: ${{ steps.docs.outputs.htmlout }}
        if: ${{ steps.docs.outcome == 'success' }}

      - uses: ./.github/actions/slack
        with:
          SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
        if: ${{ failure() }}