name: bundled_gems

env:
  UPDATE_ENABLED: true

on:
  push:
    branches: ['master']
    paths:
      - '.github/workflows/bundled_gems.yml'
      - 'gems/bundled_gems'
  pull_request:
    branches: ['master']
    paths:
      - '.github/workflows/bundled_gems.yml'
      - 'gems/bundled_gems'
  merge_group:
  schedule:
    - cron: '45 6 * * *'
  workflow_dispatch:

permissions: # added using https://github.com/step-security/secure-workflows
  contents: read

jobs:
  update:
    permissions:
      contents: write # for Git to git push

    if: ${{ github.event_name != 'schedule' || github.repository == 'ruby/ruby' }}

    name: update ${{ github.workflow }}

    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
        with:
          token: ${{ (github.repository == 'ruby/ruby' && !startsWith(github.event_name, 'pull')) && secrets.MATZBOT_AUTO_UPDATE_TOKEN || secrets.GITHUB_TOKEN }}

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

      - name: Set ENV
        run: |
          echo "TODAY=$(date +%F)" >> $GITHUB_ENV

      - name: Download previous gems list
        run: |
          mkdir -p .downloaded-cache
          for data in bundled_gems.json default_gems.json; do
            ln -s .downloaded-cache/$data .
            curl -O -R -z ./$data https://stdgems.org/$data
          done

      - name: Update bundled gems list
        id: bundled_gems
        run: |
          ruby -i~ tool/update-bundled_gems.rb gems/bundled_gems >> $GITHUB_OUTPUT
        if: ${{ env.UPDATE_ENABLED == 'true' }}

      - name: Update spec/bundler/support/builders.rb
        run: |
          #!ruby
          rake_version = File.read("gems/bundled_gems")[/^rake\s+(\S+)/, 1]
          print ARGF.read.sub(/^ *def rake_version\s*\K".*?"/) {rake_version.dump}
        shell: ruby -i~ {0} spec/bundler/support/builders.rb
        if: ${{ env.UPDATE_ENABLED == 'true' }}

      - name: Maintain updated gems list in NEWS
        run: |
          ruby tool/update-NEWS-gemlist.rb bundled
        if: ${{ env.UPDATE_ENABLED == 'true' }}

      - name: Check diffs
        id: diff
        run: |
          news= gems=
          git diff --color --no-ext-diff --ignore-submodules --exit-code -- NEWS.md ||
          news=true
          git diff --color --no-ext-diff --ignore-submodules --exit-code -- gems/bundled_gems ||
          gems=true
          git add -- NEWS.md gems/bundled_gems
          git add -- spec/bundler/support/builders.rb
          echo news=$news >> $GITHUB_OUTPUT
          echo gems=$gems >> $GITHUB_OUTPUT
          echo update=${news:-$gems} >> $GITHUB_OUTPUT

      - name: Commit
        id: commit
        run: |
          git pull --ff-only origin ${GITHUB_REF#refs/heads/}
          message="Update bundled gems list"
          if [ -z "${gems}" ]; then
            git commit --message="[DOC] ${message} at ${GITHUB_SHA:0:30}"
          else
            git commit --message="${message} as of ${TODAY}"
          fi
        env:
          TODAY: ${{ steps.bundled_gems.outputs.latest_date || env.TODAY }}
          EMAIL: svn-admin@ruby-lang.org
          GIT_AUTHOR_NAME: git
          GIT_COMMITTER_NAME: git
          gems: ${{ steps.diff.outputs.gems }}
        if: ${{ steps.diff.outputs.update }}

      - name: Development revision of bundled gems
        run: |
          #!ruby
          file = "gems/bundled_gems"

          SECONDS_IN_DAY = 86400
          today = Time.new("#{ENV['TODAY']}Z")
          if !(december = today.month == 12)
            days = 30
          elsif (days = 26 - today.day).positive?
            days += 4
          else
            puts "::info:: just after released"
            exit
          end

          since = "#{today.year-1}-12-26"
          ref = ENV['GITHUB_REF']
          puts "::group::\e[94mfetching \e[1m#{file}\e[22m since \e[1m#{since}\e[22m from \e[1m#{ref}\e[m"
          system(*%W[git fetch --shallow-since=#{since} --no-tags origin #{ref}], exception: true)
          puts "::endgroup::"

          puts "\e[94mchecking development version bundled gems older than \e[1m#{days}\e[22m days\e[m"
          limit = today.to_i - days * SECONDS_IN_DAY
          old = 0
          IO.popen(%W"git blame --line-porcelain -- #{file}") do |blame|
            while head = blame.gets("\n\t") and s = blame.gets
              next unless (gem = s.split(/\s+|#.*/)).size > 3
              time = head[/^committer-time \K\d+/].to_i
              next if (d = limit - time) <= 0
              d /= SECONDS_IN_DAY
              line = head[/\A\h+ \d+ \K\d+/].to_i
              level = if d < days; 'warning'; else old += 1; 'error'; end
              d += days
              puts "::#{level} file=#{file},line=#{line},title=Older than #{d} days::#{gem[0]} #{gem[3]}"
            end
          end
          abort "::error title=Too long-standing gems::The release comes soon." if december and old.nonzero?
        shell: ruby {0}
        env:
          file: ${{ steps.logs.outputs.file }}
          days: ${{ steps.logs.outputs.days }}

      - name: Install libraries
        uses: ./.github/actions/setup/ubuntu
        if: ${{ steps.diff.outputs.gems }}

      - name: Build
        run: |
          ./autogen.sh
          ./configure -C --disable-install-doc
          make
        if: ${{ steps.diff.outputs.gems }}

      - name: Prepare bundled gems
        run: |
          make -s prepare-gems
        if: ${{ steps.diff.outputs.gems }}

      - name: Test bundled gems
        run: |
          make -s test-bundled-gems
        timeout-minutes: 30
        env:
          RUBY_TESTOPTS: '-q --tty=no'
          TEST_BUNDLED_GEMS_ALLOW_FAILURES: ''
        if: ${{ steps.diff.outputs.gems }}

      - name: Push
        run: |
          git push origin ${GITHUB_REF#refs/heads/}
        if: >-
          ${{
          github.repository == 'ruby/ruby' &&
          !startsWith(github.event_name, 'pull') &&
          steps.commit.outcome == 'success'
          }}

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