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96feb2ac1c
BUG=webrtc:6372 Review-Url: https://codereview.webrtc.org/2735173002 Cr-Commit-Position: refs/heads/master@{#17212}
125 lines
4.7 KiB
Python
Executable file
125 lines
4.7 KiB
Python
Executable file
#!/usr/bin/python
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# Copyright 2016 The WebRTC project authors. All Rights Reserved.
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#
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# Use of this source code is governed by a BSD-style license
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# that can be found in the LICENSE file in the root of the source
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# tree. An additional intellectual property rights grant can be found
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# in the file PATENTS. All contributing project authors may
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# be found in the AUTHORS file in the root of the source tree.
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"""Generates license HTML for a prebuilt version of WebRTC for iOS."""
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import sys
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import argparse
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import cgi
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import os
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import re
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import textwrap
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import subprocess
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LIB_TO_LICENSES_DICT = {
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'boringssl': ['third_party/boringssl/src/LICENSE'],
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'expat': ['third_party/expat/files/COPYING'],
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'jsoncpp': ['third_party/jsoncpp/LICENSE'],
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'opus': ['third_party/opus/src/COPYING'],
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'protobuf': ['third_party/protobuf/LICENSE'],
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'libsrtp': ['third_party/libsrtp/LICENSE'],
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'usrsctp': ['third_party/usrsctp/LICENSE'],
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'webrtc': ['webrtc/LICENSE', 'webrtc/LICENSE_THIRD_PARTY'],
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'libvpx': ['third_party/libvpx/source/libvpx/LICENSE'],
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'libyuv': ['third_party/libyuv/LICENSE'],
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}
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SCRIPT_DIR = os.path.dirname(os.path.realpath(sys.argv[0]))
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CHECKOUT_ROOT = os.path.abspath(os.path.join(SCRIPT_DIR, os.pardir, os.pardir))
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WEBRTC_ROOT = os.path.join(CHECKOUT_ROOT, 'webrtc')
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def GetThirdPartyLibraries(buildfile_dir, target_name):
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def extractLibName(s):
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# Sample input:
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# [" //third_party/usrsctp:usrsctp", " //webrtc:webrtc_common"]
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# Sample output:
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# ["usrsctp"]
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return re.sub(r'\(.*\)', '', s).strip().split(os.path.sep)[-1].split(':')[0]
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output = subprocess.check_output(
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["gn", "desc", buildfile_dir, target_name, '--all']) .split(os.linesep)
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return [extractLibName(x) for x in output if re.search(r'third_party', x)]
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class LicenseBuilder(object):
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def __init__(self, buildfile_dirs, target_name):
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self.buildfile_dirs = buildfile_dirs
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self.target_name = target_name
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def GenerateLicenseText(self, output_dir):
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# Get a list of third_party libs from gn. For fat libraries we must consider
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# all architectures, hence the multiple buildfile directories.
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# The `sum` function flattens the 2d list.
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third_party_libs = sum([GetThirdPartyLibraries(buildfile, self.target_name)
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for buildfile in self.buildfile_dirs], [])
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# Generate amalgamated list of libraries. Will exit with error if a
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# lib is unrecognized.
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license_libs = set()
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for static_lib in third_party_libs:
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license_path = LIB_TO_LICENSES_DICT.get(static_lib)
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if static_lib == 'yasm':
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# yasm is a build-time dep only, and doesn't need a license.
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continue
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if license_path is None:
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print 'Missing license path for lib: %s' % static_lib
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return 1
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license_libs.add(static_lib)
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# Put webrtc at the front of the list.
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license_libs = sorted(license_libs)
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license_libs.insert(0, 'webrtc')
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# Generate HTML.
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output_license_file = open(os.path.join(output_dir, 'LICENSE.html'), 'w+')
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output_license_file.write('<!DOCTYPE html>\n')
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output_license_file.write('<html>\n<head>\n')
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output_license_file.write('<meta charset="UTF-8">\n')
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output_license_file.write('<title>Licenses</title>\n')
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style_tag = textwrap.dedent('''\
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<style>
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body { margin: 0; font-family: sans-serif; }
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pre { background-color: #eeeeee; padding: 1em; white-space: pre-wrap; }
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p { margin: 1em; white-space: nowrap; }
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</style>
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''')
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output_license_file.write(style_tag)
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output_license_file.write('</head>\n')
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for license_lib in license_libs:
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output_license_file.write('<p>%s<br/></p>\n' % license_lib)
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output_license_file.write('<pre>\n')
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for path in LIB_TO_LICENSES_DICT[license_lib]:
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license_path = os.path.join(CHECKOUT_ROOT, path)
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with open(license_path, 'r') as license_file:
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license_text = cgi.escape(license_file.read(), quote=True)
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output_license_file.write(license_text)
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output_license_file.write('\n')
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output_license_file.write('</pre>\n')
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output_license_file.write('</body>\n')
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output_license_file.write('</html>')
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output_license_file.close()
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return 0
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if __name__ == '__main__':
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parser = argparse.ArgumentParser(description='Generate WebRTC LICENSE.html')
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parser.add_argument('target_name',
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help='Name of the GN target to generate a license for')
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parser.add_argument('output_dir',
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help='Directory to output LICENSE.html to.')
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parser.add_argument('buildfile_dirs', nargs="+",
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help='Directories containing gn generated ninja files')
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args = parser.parse_args()
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builder = LicenseBuilder(args.buildfile_dirs, args.target_name)
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sys.exit(builder.GenerateLicenseText(args.output_dir))
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