Add release engineering related tools

1 files changed, 45 insertions, 0 deletions

diff --git a/tool/releng/gen-release-note.rb b/tool/releng/gen-release-note.rb
new file mode 100755
index 0000000000..e3dbe13945
--- /dev/null
+++ b/tool/releng/gen-release-note.rb
@@ -0,0 +1,45 @@
+#!/usr/bin/env ruby
+require "open-uri"
+require "yaml"
+
+# Confirm current directory is www.ruby-lang.org's working directory
+def confirm_w_r_l_o_wd
+  File.foreach('.git/config') do |line|
+    return true if line.include?('git@github.com:ruby/www.ruby-lang.org.git')
+  end
+  abort "Run this script in www.ruby-lang.org's working directory"
+end
+confirm_w_r_l_o_wd
+
+releases = YAML.load_file('_data/releases.yml')
+
+%w[
+    https://hackmd.io/@naruse/ruby-relnote-en/download
+    https://hackmd.io/@naruse/ruby-relnote-ja/download
+].each do |url|
+  src = URI(url).read
+  src.gsub!(/[ \t]+$/, "")
+  src.sub!(/\s+\z/, "\n")
+  src.sub!(/^breaks: false\n/, '')
+  if /^\{% assign release = site.data.releases \| where: "version", "([^"]+)" \| first %\}/ =~ src
+    version = $1
+  else
+    abort %[#{url} doesn't include `{% assign release = site.data.releases | where: "version", "<version>" | first %}`]
+  end
+  puts "#{url} -> #{version}"
+
+  release = releases.find{|rel|rel['version'] == version}
+  unless release
+   abort "#{version} is not found in '_data/releases.yml'"
+  end
+
+  # Write release note article
+  lang = url[/ja|en/]
+  if %r<\A/en/news/(\d+/\d+/\d+/ruby-[\w\-]+-released)> =~ release['post']
+    path = "#{lang}/news/_posts/#{$1.tr('/', '-')}.md"
+  else
+    abort "unexpected path pattern '#{release['post']}'"
+  end
+  puts path
+  File.write(path, src)
+end