[Truffle] Add the update copyright tool in repo.

jruby · Oct 24, 2014 · 0845d2b · 0845d2b
1 parent 7ec332a
commit 0845d2b
Showing 1 changed file with 83 additions and 0 deletions.
diff --git a/tool/update_truffle_copyright.rb b/tool/update_truffle_copyright.rb
@@ -0,0 +1,83 @@
+# Copyright (c) 2014 Oracle and/or its affiliates. All rights reserved. This
+# code is released under a tri EPL/GPL/LGPL license. You can use it,
+# redistribute it and/or modify it under the terms of the:
+# 
+# Eclipse Public License version 1.0
+# GNU General Public License version 2
+# GNU Lesser General Public License version 2.1
+
+require 'rugged'
+
+COPYRIGHT = /Copyright \(c\) (?<year1>\d{4})(?:, (?<year2>\d{4}))? Oracle\b/
+
+OTHER_COPYRIGHTS = [
+  /Copyright \(c\) \d{4}(?:-\d{4})?, Evan Phoenix/
+]
+
+truffle_paths = %w[
+  bench/truffle/compare.rb
+  bench/truffle/report/report.rb
+  core/src/main/java/org/jruby/truffle
+  core/src/main/ruby/jruby/truffle/core
+  test/truffle/pe/pe.rb
+] + [__FILE__]
+
+truffle_paths.each do |path|
+  puts "WARNING: incorrect path #{path}" unless File.exist? path
+end
+
+abort "USAGE: ruby #{$0} DAYS" unless ARGV.first
+days = Integer(ARGV.first)
+since = Time.now - days * 24 * 3600
+
+puts "Fixing copyright years for commits in the last #{days} days"
+
+now_year = Time.now.year
+abort "Too far back in time: #{since} but we are in #{now_year}" unless since.year == now_year
+
+repo = Rugged::Repository.new('.')
+
+head_commit = repo.head.target
+first_commit = nil
+
+repo.walk(head_commit, Rugged::SORT_DATE) { |commit|
+  break if commit.time < since
+  first_commit = commit
+}
+
+abort "No commit in that range" unless first_commit
+
+diff = first_commit.diff(head_commit)
+
+paths = diff.each_delta.to_a.map { |delta|
+  delta.new_file[:path]
+}.select { |path|
+  truffle_paths.any? { |prefix| path.start_with? prefix }
+}
+
+paths.each do |file|
+  next unless File.exist? file
+
+  header = File.read(file, 200)
+
+  unless COPYRIGHT =~ header
+    if OTHER_COPYRIGHTS.none? { |copyright| copyright =~ header }
+      puts "WARNING: No copyright in #{file}"
+      puts header
+    end
+    next
+  end
+
+  year1, year2 = $~[:year1], $~[:year2]
+  year1 = Integer(year1)
+  year2 = year2 ? Integer(year2) : year1
+
+  if now_year > year2
+    contents = File.read(file)
+    years = "#{year1}, #{now_year}"
+    contents.sub!(COPYRIGHT, "Copyright (c) #{years} Oracle")
+    File.write(file, contents)
+
+    puts "Updated year in #{file}"
+  end
+end