Very nice! I love the compactness and readability of Ruby (no joke!).
If you are interested in a more overengineered solution to that problem,
there is CodeWrestler at
http://henning.schmiedehausen.org/eyewiki/Wiki.jsp?page=CodeWrestler
Especially the license.ReLicense and license.CheckLicense modules.
I use this tool on the projects that I work on and e.g. the last
Velocity Release got its license headers 'codewrestled'... :-)
Best regards
Henning
Matthieu Riou schrieb:
Hi,
I've just written a small Ruby script to check whether all your files
have the Apache license headers and optionally add them where they're
missing. It's as simple as:
ruby check_license_headers.rb # list files with no header
ruby check_license_headers.rb add # add headers automatically
It scans for 'java', 'xml', 'bpel', 'wsdl', 'c' and 'cpp' files but it's
rather easy to add more files type. Might not be bullet proof but it
worked well enough for me. Thought I'd just post it here in case someone
else finds it useful.
Cheers,
Matthieu
==========================================================================
module FileBrowser
def browse(root)
queue = Array.new.push(root)
while !queue.empty?
filename = queue.pop
if File.file?(filename)
yield(filename)
else
Dir.new(filename).each do |child|
unless ['..', '.','.svn'].include? child
queue.push(filename + "/" + child)
end
end
end
end
end
end
class HeadersCheck
EXT = ['java', 'xml', 'bpel', 'wsdl', 'c', 'cpp']
include FileBrowser
def check_files(dir, dry_run)
count = 0
browse(dir) do |filename|
if /\.#{EXT.join('$|\.')}$/ =~ filename
match = nil
f = File.new (filename)
# Checking for the Apache header in the 4 first lines
4.times do
match ||= (/Licensed to the Apache Software Foundation/ =~
f.readline) rescue nil
#puts("File #{filename} too short to check.")
end
f.close
unless match
if dry_run
puts "Missing header in #{filename}"
else
add_header(filename)
end
count += 1
end
end
end
if dry_run
puts "#{count} files don't have an Apache license header."
else
puts "#{count} files have been changed to include the Apache
license header."
end
end
def add_header(filename)
# Extracting file extension
ext = /\.([^\.]*)$/.match(filename[1..-1])[1]
header = HEADERS[ext]
content = File.new(filename, 'r').read
if content[0..4] == '<?xml'
# If the file has a xml header, the license needs to be appended after
content = content[0..content.index("\n")] + header +
content[(content.index ("\n") + 1)..-1]
else
content = header + content
end
File.new(filename, 'w').write(content)
end
end
JAVA_HEADER = <<JAVA
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
<http://www.apache.org/licenses/LICENSE-2.0>
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
JAVA
XML_HEADER = <<XML
<!--
~ Licensed to the Apache Software Foundation (ASF) under one
~ or more contributor license agreements. See the NOTICE file
~ distributed with this work for additional information
~ regarding copyright ownership. The ASF licenses this file
~ to you under the Apache License, Version 2.0 (the
~ "License"); you may not use this file except in compliance
~ with the License. You may obtain a copy of the License at
~
~ http://www.apache.org/licenses/LICENSE-2.0
~
~ Unless required by applicable law or agreed to in writing,
~ software distributed under the License is distributed on an
~ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
~ KIND, either express or implied. See the License for the
~ specific language governing permissions and limitations
~ under the License.
-->
XML
HEADERS = {
'java' => JAVA_HEADER,
'c' => JAVA_HEADER,
'cpp' => JAVA_HEADER,
'xml' => XML_HEADER,
'bpel' => XML_HEADER,
'wsdl' => XML_HEADER
}
if ['-h', '--help', 'help'].include? ARGV[0]
puts "Scans the current directory for files with missing Apache "
puts "license headers."
puts " ruby check_license_headers.rb # list files"
puts " ruby check_license_headers.rb add # add headers automatically"
else
HeadersCheck.new.check_files('.', ARGV[0] != 'add')
end
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