tools/checklicenses/checklicenses.py

   1 #!/usr/bin/env python
   2 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
   3 # Use of this source code is governed by a BSD-style license that can be
   4 # found in the LICENSE file.
   5
   6 """Makes sure that all files contain proper licensing information."""
   7
   8
   9 import json
  10 import optparse
  11 import os.path
  12 import subprocess
  13 import sys
  14
  15
  16 def PrintUsage():
  17   print """Usage: python checklicenses.py [--root <root>] [tocheck]
  18   --root   Specifies the repository root. This defaults to "../.." relative
  19            to the script file. This will be correct given the normal location
  20            of the script in "<root>/tools/checklicenses".
  21
  22   --ignore-suppressions  Ignores path-specific license whitelist. Useful when
  23                          trying to remove a suppression/whitelist entry.
  24
  25   tocheck  Specifies the directory, relative to root, to check. This defaults
  26            to "." so it checks everything.
  27
  28 Examples:
  29   python checklicenses.py
  30   python checklicenses.py --root ~/chromium/src third_party"""
  31
  32
  33 WHITELISTED_LICENSES = [
  34     'Anti-Grain Geometry',
  35     'Apache (v2.0)',
  36     'Apache (v2.0) BSD (2 clause)',
  37     'Apache (v2.0) GPL (v2)',
  38     'Apple MIT',  # https://fedoraproject.org/wiki/Licensing/Apple_MIT_License
  39     'APSL (v2)',
  40     'APSL (v2) BSD (4 clause)',
  41     'BSD',
  42     'BSD (2 clause)',
  43     'BSD (2 clause) ISC',
  44     'BSD (2 clause) MIT/X11 (BSD like)',
  45     'BSD (3 clause)',
  46     'BSD (3 clause) GPL (v2)',
  47     'BSD (3 clause) ISC',
  48     'BSD (3 clause) LGPL (v2 or later)',
  49     'BSD (3 clause) LGPL (v2.1 or later)',
  50     'BSD (3 clause) MIT/X11 (BSD like)',
  51     'BSD (4 clause)',
  52     'BSD-like',
  53
  54     # TODO(phajdan.jr): Make licensecheck not print BSD-like twice.
  55     'BSD-like MIT/X11 (BSD like)',
  56
  57     'BSL (v1.0)',
  58     'FreeType (BSD like)',
  59     'FreeType (BSD like) with patent clause',
  60     'GPL (v2) LGPL (v2.1 or later)',
  61     'GPL (v2 or later) with Bison parser exception',
  62     'GPL (v2 or later) with libtool exception',
  63     'GPL (v3 or later) with Bison parser exception',
  64     'GPL with Bison parser exception',
  65     'Independent JPEG Group License',
  66     'ISC',
  67     'LGPL (unversioned/unknown version)',
  68     'LGPL (v2)',
  69     'LGPL (v2 or later)',
  70     'LGPL (v2.1)',
  71     'LGPL (v2.1 or later)',
  72     'LGPL (v3 or later)',
  73     'MIT/X11 (BSD like)',
  74     'MIT/X11 (BSD like) LGPL (v2.1 or later)',
  75     'MPL (v1.0) LGPL (v2 or later)',
  76     'MPL (v1.1)',
  77     'MPL (v1.1) BSD (3 clause) GPL (v2) LGPL (v2.1 or later)',
  78     'MPL (v1.1) BSD (3 clause) LGPL (v2.1 or later)',
  79     'MPL (v1.1) BSD-like',
  80     'MPL (v1.1) BSD-like GPL (unversioned/unknown version)',
  81     'MPL (v1.1) BSD-like GPL (v2) LGPL (v2.1 or later)',
  82     'MPL (v1.1) GPL (v2)',
  83     'MPL (v1.1) GPL (v2) LGPL (v2 or later)',
  84     'MPL (v1.1) GPL (v2) LGPL (v2.1 or later)',
  85     'MPL (v1.1) GPL (unversioned/unknown version)',
  86     'MPL (v1.1) LGPL (v2 or later)',
  87     'MPL (v1.1) LGPL (v2.1 or later)',
  88     'MPL (v2.0)',
  89     'Ms-PL',
  90     'Public domain',
  91     'Public domain BSD',
  92     'Public domain BSD (3 clause)',
  93     'Public domain BSD-like',
  94     'Public domain LGPL (v2.1 or later)',
  95     'libpng',
  96     'zlib/libpng',
  97     'SGI Free Software License B',
  98     'SunSoft (BSD like)',
  99     'University of Illinois/NCSA Open Source License (BSD like)',
 100     ('University of Illinois/NCSA Open Source License (BSD like) '
 101      'MIT/X11 (BSD like)'),
 102 ]
 103
 104
 105 PATH_SPECIFIC_WHITELISTED_LICENSES = {
 106     'base/third_party/icu': [  # http://crbug.com/98087
 107         'UNKNOWN',
 108     ],
 109
 110     # http://code.google.com/p/google-breakpad/issues/detail?id=450
 111     'breakpad/src': [
 112         'UNKNOWN',
 113     ],
 114
 115     'buildtools/third_party/libc++/trunk/test': [
 116         # http://llvm.org/bugs/show_bug.cgi?id=18291
 117         'UNKNOWN',
 118     ],
 119
 120     'chrome/common/extensions/docs/examples': [  # http://crbug.com/98092
 121         'UNKNOWN',
 122     ],
 123     # This contains files copied from elsewhere from the tree. Since the copied
 124     # directories might have suppressions below (like simplejson), whitelist the
 125     # whole directory. This is also not shipped code.
 126     'chrome/common/extensions/docs/server2/third_party': [
 127         'UNKNOWN',
 128     ],
 129     'courgette/third_party/bsdiff_create.cc': [  # http://crbug.com/98095
 130         'UNKNOWN',
 131     ],
 132     'courgette/third_party/qsufsort.h': [  # http://crbug.com/98095
 133         'UNKNOWN',
 134     ],
 135     'native_client': [  # http://crbug.com/98099
 136         'UNKNOWN',
 137     ],
 138     'native_client/toolchain': [
 139         'BSD GPL (v2 or later)',
 140         'BSD MIT/X11 (BSD like)',
 141         'BSD (2 clause) GPL (v2 or later)',
 142         'BSD (3 clause) GPL (v2 or later)',
 143         'BSD (4 clause) ISC',
 144         'BSL (v1.0) GPL',
 145         'BSL (v1.0) GPL (v3.1)',
 146         'GPL',
 147         'GPL (unversioned/unknown version)',
 148         'GPL (v2)',
 149         'GPL (v2 or later)',
 150         'GPL (v3.1)',
 151         'GPL (v3 or later)',
 152         'MPL (v1.1) LGPL (unversioned/unknown version)',
 153     ],
 154     'third_party/WebKit': [
 155         'UNKNOWN',
 156     ],
 157
 158     # http://code.google.com/p/angleproject/issues/detail?id=217
 159     'third_party/angle': [
 160         'UNKNOWN',
 161     ],
 162
 163     # http://crbug.com/222828
 164     # http://bugs.python.org/issue17514
 165     'third_party/chromite/third_party/argparse.py': [
 166         'UNKNOWN',
 167     ],
 168
 169     # http://crbug.com/326117
 170     # https://bitbucket.org/chrisatlee/poster/issue/21
 171     'third_party/chromite/third_party/poster': [
 172         'UNKNOWN',
 173     ],
 174
 175     # http://crbug.com/333508
 176     'third_party/clang_format/script': [
 177         'UNKNOWN',
 178     ],
 179
 180     # http://crbug.com/333508
 181     'buildtools/clang_format/script': [
 182         'UNKNOWN',
 183     ],
 184
 185     # https://mail.python.org/pipermail/cython-devel/2014-July/004062.html
 186     'third_party/cython': [
 187         'UNKNOWN',
 188     ],
 189
 190     'third_party/devscripts': [
 191         'GPL (v2 or later)',
 192     ],
 193     'third_party/catapult/tracing/third_party/devscripts': [
 194         'GPL (v2 or later)',
 195     ],
 196
 197     # https://github.com/shazow/apiclient/issues/8
 198     # MIT license.
 199     'third_party/catapult/third_party/apiclient': [
 200         'UNKNOWN',
 201     ],
 202     'third_party/catapult/dashboard/third_party/apiclient': [
 203         'UNKNOWN',
 204     ],
 205
 206     # https://bugs.launchpad.net/beautifulsoup/+bug/1481316
 207     # MIT license.
 208     'third_party/catapult/third_party/beautifulsoup': [
 209         'UNKNOWN'
 210     ],
 211     'third_party/catapult/dashboard/third_party/beautifulsoup': [
 212         'UNKNOWN'
 213     ],
 214
 215     # https://code.google.com/p/graphy/issues/detail?id=6
 216     # Apache (v2.0)
 217     'third_party/catapult/third_party/graphy': [
 218         'UNKNOWN',
 219     ],
 220     'third_party/catapult/dashboard/third_party/graphy': [
 221         'UNKNOWN',
 222     ],
 223
 224     # https://github.com/html5lib/html5lib-python/issues/125
 225     # MIT license.
 226     'third_party/catapult/third_party/html5lib-python': [
 227         'UNKNOWN',
 228     ],
 229
 230     # https://github.com/jcgregorio/httplib2/issues/307
 231     # MIT license.
 232     'third_party/catapult/third_party/httplib2': [
 233         'UNKNOWN',
 234     ],
 235     'third_party/catapult/dashboard/third_party/httplib2': [
 236         'UNKNOWN',
 237     ],
 238
 239     # https://github.com/GoogleCloudPlatform/appengine-mapreduce/issues/71
 240     # Apache (v2.0)
 241     'third_party/catapult/third_party/mapreduce': [
 242         'UNKNOWN',
 243     ],
 244     'third_party/catapult/dashboard/third_party/mapreduce': [
 245         'UNKNOWN',
 246     ],
 247
 248     # https://code.google.com/p/webapp-improved/issues/detail?id=103
 249     # Apache (v2.0).
 250     'third_party/catapult/third_party/webapp2': [
 251         'UNKNOWN',
 252     ],
 253     'third_party/catapult/dashboard/third_party/webapp2': [
 254         'UNKNOWN',
 255     ],
 256
 257     # https://github.com/Pylons/webob/issues/211
 258     # MIT license.
 259     'third_party/catapult/third_party/WebOb': [
 260         'UNKNOWN',
 261     ],
 262     'third_party/catapult/dashboard/third_party/WebOb': [
 263         'UNKNOWN',
 264     ],
 265
 266     # https://github.com/Pylons/webtest/issues/141
 267     # MIT license.
 268     'third_party/catapult/third_party/webtest': [
 269         'UNKNOWN',
 270     ],
 271     'third_party/catapult/dashboard/third_party/webtest': [
 272         'UNKNOWN',
 273     ],
 274
 275     # https://bitbucket.org/ianb/paste/issues/12/add-license-headers-to-source-files
 276     # MIT license.
 277     'third_party/catapult/third_party/Paste': [
 278         'UNKNOWN',
 279     ],
 280     'third_party/catapult/dashboard/third_party/Paste': [
 281         'UNKNOWN',
 282     ],
 283
 284     # https://github.com/google/oauth2client/issues/231
 285     # Apache v2.0.
 286     'third_party/catapult/third_party/oauth2client': [
 287         'UNKNOWN',
 288     ],
 289     'third_party/catapult/dashboard/third_party/oauth2client': [
 290         'UNKNOWN',
 291     ],
 292
 293     # https://bitbucket.org/gutworth/six/issues/129/add-license-headers-to-source-files
 294     # MIT license.
 295     'third_party/catapult/third_party/six': [
 296         'UNKNOWN',
 297     ],
 298     'third_party/catapult/dashboard/third_party/six': [
 299         'UNKNOWN',
 300     ],
 301
 302     'third_party/expat/files/lib': [  # http://crbug.com/98121
 303         'UNKNOWN',
 304     ],
 305     'third_party/ffmpeg': [
 306         'GPL',
 307         'GPL (v2)',
 308         'GPL (v2 or later)',
 309         'GPL (v3 or later)',
 310         'UNKNOWN',  # http://crbug.com/98123
 311     ],
 312     'third_party/fontconfig': [
 313         # https://bugs.freedesktop.org/show_bug.cgi?id=73401
 314         'UNKNOWN',
 315     ],
 316     'third_party/freetype2': [ # http://crbug.com/177319
 317         'UNKNOWN',
 318     ],
 319     'third_party/hunspell': [  # http://crbug.com/98134
 320         'UNKNOWN',
 321     ],
 322     'third_party/iccjpeg': [  # http://crbug.com/98137
 323         'UNKNOWN',
 324     ],
 325     'third_party/icu': [  # http://crbug.com/98301
 326         'UNKNOWN',
 327     ],
 328     'third_party/jsoncpp/source': [
 329         # https://github.com/open-source-parsers/jsoncpp/issues/234
 330         'UNKNOWN',
 331     ],
 332     'third_party/junit/src': [
 333         # https://github.com/junit-team/junit/issues/1132
 334         'UNKNOWN',
 335     ],
 336     'third_party/lcov': [  # http://crbug.com/98304
 337         'UNKNOWN',
 338     ],
 339     'third_party/lcov/contrib/galaxy/genflat.pl': [
 340         'GPL (v2 or later)',
 341     ],
 342     'third_party/libevent': [  # http://crbug.com/98309
 343         'UNKNOWN',
 344     ],
 345     'third_party/libjingle/source/talk': [  # http://crbug.com/98310
 346         'UNKNOWN',
 347     ],
 348     'third_party/libjpeg_turbo': [  # http://crbug.com/98314
 349         'UNKNOWN',
 350     ],
 351
 352     # Many liblouis files are mirrored but not used in the NaCl module.
 353     # They are not excluded from the mirror because of lack of infrastructure
 354     # support.  Getting license headers added to the files where missing is
 355     # tracked in https://github.com/liblouis/liblouis/issues/22.
 356     'third_party/liblouis/src': [
 357         'GPL (v3 or later)',
 358         'UNKNOWN',
 359     ],
 360
 361     'third_party/libpng': [  # http://crbug.com/98318
 362         'UNKNOWN',
 363     ],
 364
 365     # The following files lack license headers, but are trivial.
 366     'third_party/libusb/src/libusb/os/poll_posix.h': [
 367         'UNKNOWN',
 368     ],
 369
 370     'third_party/libvpx/source': [  # http://crbug.com/98319
 371         'UNKNOWN',
 372     ],
 373     'third_party/libxml': [
 374         'UNKNOWN',
 375     ],
 376     'third_party/libxslt': [
 377         'UNKNOWN',
 378     ],
 379     'third_party/lzma_sdk': [
 380         'UNKNOWN',
 381     ],
 382     'third_party/mesa/src': [
 383         'GPL (v2)',
 384         'GPL (v3 or later)',
 385         'MIT/X11 (BSD like) GPL (v3 or later) with Bison parser exception',
 386         'UNKNOWN',  # http://crbug.com/98450
 387     ],
 388     'third_party/modp_b64': [
 389         'UNKNOWN',
 390     ],
 391     'third_party/openmax_dl/dl' : [
 392         'Khronos Group',
 393     ],
 394     'third_party/openssl': [  # http://crbug.com/98451
 395         'UNKNOWN',
 396     ],
 397     'third_party/boringssl': [
 398         # There are some files in BoringSSL which came from OpenSSL and have no
 399         # license in them. We don't wish to add the license header ourselves
 400         # thus we don't expect to pass license checks.
 401         'UNKNOWN',
 402     ],
 403     'third_party/ots/tools/ttf-checksum.py': [  # http://code.google.com/p/ots/issues/detail?id=2
 404         'UNKNOWN',
 405     ],
 406     'third_party/molokocacao': [  # http://crbug.com/98453
 407         'UNKNOWN',
 408     ],
 409     'third_party/ocmock/OCMock': [  # http://crbug.com/98454
 410         'UNKNOWN',
 411     ],
 412     'third_party/protobuf': [  # http://crbug.com/98455
 413         'UNKNOWN',
 414     ],
 415
 416     # https://bitbucket.org/ned/coveragepy/issue/313/add-license-file-containing-2-3-or-4
 417     # BSD 2-clause license.
 418     'third_party/pycoverage': [
 419         'UNKNOWN',
 420     ],
 421
 422     'third_party/pyelftools': [ # http://crbug.com/222831
 423         'UNKNOWN',
 424     ],
 425     'third_party/scons-2.0.1/engine/SCons': [  # http://crbug.com/98462
 426         'UNKNOWN',
 427     ],
 428     'third_party/simplejson': [
 429         'UNKNOWN',
 430     ],
 431     'third_party/skia': [  # http://crbug.com/98463
 432         'UNKNOWN',
 433     ],
 434     'third_party/snappy/src': [  # http://crbug.com/98464
 435         'UNKNOWN',
 436     ],
 437     'third_party/smhasher/src': [  # http://crbug.com/98465
 438         'UNKNOWN',
 439     ],
 440     'third_party/speech-dispatcher/libspeechd.h': [
 441         'GPL (v2 or later)',
 442     ],
 443     'third_party/sqlite': [
 444         'UNKNOWN',
 445     ],
 446
 447     # http://crbug.com/334668
 448     # MIT license.
 449     'tools/swarming_client/third_party/httplib2': [
 450         'UNKNOWN',
 451     ],
 452
 453     # http://crbug.com/334668
 454     # Apache v2.0.
 455     'tools/swarming_client/third_party/oauth2client': [
 456         'UNKNOWN',
 457     ],
 458
 459     # http://crbug.com/471372
 460     # BSD
 461     'tools/swarming_client/third_party/pyasn1': [
 462         'UNKNOWN',
 463     ],
 464
 465     # http://crbug.com/471372
 466     # Apache v2.0.
 467     'tools/swarming_client/third_party/rsa': [
 468         'UNKNOWN',
 469     ],
 470
 471     # https://github.com/kennethreitz/requests/issues/1610
 472     'tools/swarming_client/third_party/requests': [
 473         'UNKNOWN',
 474     ],
 475
 476     'third_party/talloc': [
 477         'GPL (v3 or later)',
 478         'UNKNOWN',  # http://crbug.com/98588
 479     ],
 480     'third_party/tcmalloc': [
 481         'UNKNOWN',  # http://crbug.com/98589
 482     ],
 483     'third_party/tlslite': [
 484         'UNKNOWN',
 485     ],
 486     'third_party/webdriver': [  # http://crbug.com/98590
 487         'UNKNOWN',
 488     ],
 489
 490     # https://github.com/html5lib/html5lib-python/issues/125
 491     # https://github.com/KhronosGroup/WebGL/issues/435
 492     'third_party/webgl/src': [
 493         'UNKNOWN',
 494     ],
 495
 496     'third_party/webrtc': [  # http://crbug.com/98592
 497         'UNKNOWN',
 498     ],
 499     'third_party/xdg-utils': [  # http://crbug.com/98593
 500         'UNKNOWN',
 501     ],
 502     'third_party/yasm/source': [  # http://crbug.com/98594
 503         'UNKNOWN',
 504     ],
 505     'third_party/zlib/contrib/minizip': [
 506         'UNKNOWN',
 507     ],
 508     'third_party/zlib/trees.h': [
 509         'UNKNOWN',
 510     ],
 511     'tools/emacs': [  # http://crbug.com/98595
 512         'UNKNOWN',
 513     ],
 514     'tools/gyp/test': [
 515         'UNKNOWN',
 516     ],
 517     'tools/python/google/__init__.py': [
 518         'UNKNOWN',
 519     ],
 520     'tools/stats_viewer/Properties/AssemblyInfo.cs': [
 521         'UNKNOWN',
 522     ],
 523     'tools/symsrc/pefile.py': [
 524         'UNKNOWN',
 525     ],
 526     # Not shipped, MIT license but the header files contain no licensing info.
 527     'tools/telemetry/third_party/altgraph': [
 528         'UNKNOWN',
 529     ],
 530     # Not shipped, downloaded on trybots sometimes.
 531     'tools/telemetry/third_party/gsutil': [
 532         'BSD MIT/X11 (BSD like)',
 533         'UNKNOWN',
 534     ],
 535     # Not shipped, MIT license but the header files contain no licensing info.
 536     'tools/telemetry/third_party/modulegraph': [
 537         'UNKNOWN',
 538     ],
 539     'tools/telemetry/third_party/pyserial': [
 540         # https://sourceforge.net/p/pyserial/feature-requests/35/
 541         'UNKNOWN',
 542     ],
 543     'v8/test/cctest': [  # http://crbug.com/98597
 544         'UNKNOWN',
 545     ],
 546     'v8/src/third_party/kernel/tools/perf/util/jitdump.h': [  # http://crbug.com/391716
 547         'UNKNOWN',
 548     ],
 549 }
 550
 551
 552 def check_licenses(options, args):
 553   # Figure out which directory we have to check.
 554   if len(args) == 0:
 555     # No directory to check specified, use the repository root.
 556     start_dir = options.base_directory
 557   elif len(args) == 1:
 558     # Directory specified. Start here. It's supposed to be relative to the
 559     # base directory.
 560     start_dir = os.path.abspath(os.path.join(options.base_directory, args[0]))
 561   else:
 562     # More than one argument, we don't handle this.
 563     PrintUsage()
 564     return 1
 565
 566   print "Using base directory:", options.base_directory
 567   print "Checking:", start_dir
 568   print
 569
 570   licensecheck_path = os.path.abspath(os.path.join(options.base_directory,
 571                                                    'third_party',
 572                                                    'devscripts',
 573                                                    'licensecheck.pl'))
 574
 575   licensecheck = subprocess.Popen([licensecheck_path,
 576                                    '-l', '100',
 577                                    '-r', start_dir],
 578                                   stdout=subprocess.PIPE,
 579                                   stderr=subprocess.PIPE)
 580   stdout, stderr = licensecheck.communicate()
 581   if options.verbose:
 582     print '----------- licensecheck stdout -----------'
 583     print stdout
 584     print '--------- end licensecheck stdout ---------'
 585   if licensecheck.returncode != 0 or stderr:
 586     print '----------- licensecheck stderr -----------'
 587     print stderr
 588     print '--------- end licensecheck stderr ---------'
 589     print "\nFAILED\n"
 590     return 1
 591
 592   used_suppressions = set()
 593   errors = []
 594
 595   for line in stdout.splitlines():
 596     filename, license = line.split(':', 1)
 597     filename = os.path.relpath(filename.strip(), options.base_directory)
 598
 599     # All files in the build output directory are generated one way or another.
 600     # There's no need to check them.
 601     if filename.startswith('out/'):
 602       continue
 603
 604     # For now we're just interested in the license.
 605     license = license.replace('*No copyright*', '').strip()
 606
 607     # Skip generated files.
 608     if 'GENERATED FILE' in license:
 609       continue
 610
 611     if license in WHITELISTED_LICENSES:
 612       continue
 613
 614     if not options.ignore_suppressions:
 615       matched_prefixes = [
 616           prefix for prefix in PATH_SPECIFIC_WHITELISTED_LICENSES
 617           if filename.startswith(prefix) and
 618           license in PATH_SPECIFIC_WHITELISTED_LICENSES[prefix]]
 619       if matched_prefixes:
 620         used_suppressions.update(set(matched_prefixes))
 621         continue
 622
 623     errors.append({'filename': filename, 'license': license})
 624
 625   if options.json:
 626     with open(options.json, 'w') as f:
 627       json.dump(errors, f)
 628
 629   if errors:
 630     for error in errors:
 631       print "'%s' has non-whitelisted license '%s'" % (
 632           error['filename'], error['license'])
 633     print "\nFAILED\n"
 634     print "Please read",
 635     print "http://www.chromium.org/developers/adding-3rd-party-libraries"
 636     print "for more info how to handle the failure."
 637     print
 638     print "Please respect OWNERS of checklicenses.py. Changes violating"
 639     print "this requirement may be reverted."
 640
 641     # Do not print unused suppressions so that above message is clearly
 642     # visible and gets proper attention. Too much unrelated output
 643     # would be distracting and make the important points easier to miss.
 644
 645     return 1
 646
 647   print "\nSUCCESS\n"
 648
 649   if not len(args):
 650     unused_suppressions = set(
 651         PATH_SPECIFIC_WHITELISTED_LICENSES.iterkeys()).difference(
 652             used_suppressions)
 653     if unused_suppressions:
 654       print "\nNOTE: unused suppressions detected:\n"
 655       print '\n'.join(unused_suppressions)
 656
 657   return 0
 658
 659
 660 def main():
 661   default_root = os.path.abspath(
 662       os.path.join(os.path.dirname(__file__), '..', '..'))
 663   option_parser = optparse.OptionParser()
 664   option_parser.add_option('--root', default=default_root,
 665                            dest='base_directory',
 666                            help='Specifies the repository root. This defaults '
 667                            'to "../.." relative to the script file, which '
 668                            'will normally be the repository root.')
 669   option_parser.add_option('-v', '--verbose', action='store_true',
 670                            default=False, help='Print debug logging')
 671   option_parser.add_option('--ignore-suppressions',
 672                            action='store_true',
 673                            default=False,
 674                            help='Ignore path-specific license whitelist.')
 675   option_parser.add_option('--json', help='Path to JSON output file')
 676   options, args = option_parser.parse_args()
 677   return check_licenses(options, args)
 678
 679
 680 if '__main__' == __name__:
 681   sys.exit(main())