1 files changed, 38 insertions, 0 deletions
diff --git a/tool/update-NEWS-refs.rb b/tool/update-NEWS-refs.rb
new file mode 100644
index 0000000000..f48cac5ee1
--- /dev/null
+++ b/tool/update-NEWS-refs.rb
@@ -0,0 +1,38 @@
+# Usage: ruby tool/update-NEWS-refs.rb
+
+orig_src = File.read(File.join(__dir__, "../NEWS.md"))
+lines = orig_src.lines(chomp: true)
+
+links = {}
+while lines.last =~ %r{\A\[(.*?)\]:\s+(.*)\z}
+  links[$1] = $2
+  lines.pop
+end
+
+if links.empty? || lines.last != ""
+  raise "NEWS.md must end with a sequence of links"
+end
+
+trackers = ["Feature", "Bug", "Misc"]
+labels = links.keys.reject {|k| k.start_with?(*trackers)}
+new_src = lines.join("\n").gsub(/\[?\[(#{Regexp.union(trackers)}\s+#(\d+))\]\]?/) do
+  links[$1] ||= "https://bugs.ruby-lang.org/issues/#$2"
+  "[[#$1]]"
+end.gsub(/\[\[#{Regexp.union(labels)}\]\]?/) do
+  "[#$1]"
+end.chomp + "\n\n"
+
+label_width = links.max_by {|k, _| k.size}.first.size + 4
+redmine_links, non_redmine_links = links.partition {|k,| k =~ /\A#{Regexp.union(trackers)}\s+#\d+\z/ }
+
+(redmine_links.sort_by {|k,| k[/\d+/].to_i } + non_redmine_links.reverse).each do |k, v|
+  new_src << "[#{k}]:".ljust(label_width) << v << "\n"
+end
+
+if orig_src != new_src
+  print "Update NEWS.md? [y/N]"
+  $stdout.flush
+  if gets.chomp == "y"
+    File.write(File.join(__dir__, "../NEWS.md"), new_src)
+  end
+end