blob: ab873f74412465f00c0b541c734b652b79a031db [file] [log] [blame]
#!/usr/bin/env python
# Copyright (c) 2012 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Build the NOTICE file distributed with the NaCl SDK from a set of given
license files."""
import argparse
import os
import sys
def Trace(msg):
if Trace.verbose:
print msg
Trace.verbose = False
def FindFiles(files):
found = [f for f in files if os.path.exists(f)]
if Trace.verbose:
for f in sorted(set(files) - set(found)):
Trace('Skipping %s. File doesn\'t exist.\n' % (f,))
return found
def CreateLicenseDict(files):
# Many of the license files are duplicates. Create a map of license text to
# filename.
license_dict = {}
for filename in files:
license_text = open(filename).read()
license_text = license_text.replace('\r\n', '\n')
license_dict.setdefault(license_text, []).append(filename)
# Flip the dictionary (map tuple of filenames -> license text).
return dict((tuple(value), key) for key, value in license_dict.iteritems())
def WriteLicense(output_file, root, license_text, license_filenames):
Trace('Writing license for files:\n' + '\n'.join(license_filenames))
output_file.write('=' * 70 + '\n')
for filename in sorted(license_filenames):
filename = os.path.relpath(filename, root)
license_dir = os.path.dirname(filename)
if not license_dir:
license_dir = 'native_client_sdk'
output_file.write('%s is licensed as follows\n' % (license_dir,))
output_file.write(' (Cf. %s):\n' % (filename,))
output_file.write('=' * 70 + '\n')
def Generate(output_filename, root, files):
found_files = FindFiles(files)
license_dict = CreateLicenseDict(found_files)
with open(output_filename, 'w') as output_file:
for i, license_filenames in enumerate(sorted(license_dict.iterkeys())):
license_text = license_dict[license_filenames]
if i:
WriteLicense(output_file, root, license_text, license_filenames)
def main(args):
parser = argparse.ArgumentParser(description=__doc__)
parser.add_argument('-v', '--verbose', help='Verbose output.',
parser.add_argument('-o', '--output', help='Output file')
parser.add_argument('--root', help='Root for all paths')
parser.add_argument('files', nargs='*')
options = parser.parse_args(args)
Trace.verbose = options.verbose
if not options.output:
parser.error('No output file given. See -o.')
if not options.root:
parser.error('No root directory given. See --root.')
Generate(options.output, options.root, options.files)
return 0
if __name__ == '__main__':