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      1 #!/usr/bin/env python
      2 #
      3 # Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
      4 #
      5 # Use of this source code is governed by a BSD-style license
      6 # that can be found in the LICENSE file in the root of the source
      7 # tree. An additional intellectual property rights grant can be found
      8 # in the file PATENTS.  All contributing project authors may
      9 # be found in the AUTHORS file in the root of the source tree.
     10 
     11 # This script is used to run GYP for WebRTC. It contains selected parts of the
     12 # main function from the src/build/gyp_chromium file.
     13 
     14 import glob
     15 import os
     16 import shlex
     17 import sys
     18 
     19 script_dir = os.path.dirname(os.path.realpath(__file__))
     20 checkout_root = os.path.abspath(os.path.join(script_dir, os.pardir, os.pardir))
     21 
     22 sys.path.insert(0, os.path.join(checkout_root, 'build'))
     23 import gyp_chromium
     24 import gyp_helper
     25 import vs_toolchain
     26 
     27 sys.path.insert(0, os.path.join(checkout_root, 'tools', 'gyp', 'pylib'))
     28 import gyp
     29 
     30 def GetSupplementalFiles():
     31   """Returns a list of the supplemental files that are included in all GYP
     32   sources."""
     33   # Can't use the one in gyp_chromium since the directory location of the root
     34   # is different.
     35   return glob.glob(os.path.join(checkout_root, '*', 'supplement.gypi'))
     36 
     37 
     38 if __name__ == '__main__':
     39   args = sys.argv[1:]
     40 
     41   use_analyzer = len(args) and args[0] == '--analyzer'
     42   if use_analyzer:
     43     args.pop(0)
     44     os.environ['GYP_GENERATORS'] = 'analyzer'
     45     args.append('-Gconfig_path=' + args.pop(0))
     46     args.append('-Ganalyzer_output_path=' + args.pop(0))
     47 
     48   if int(os.environ.get('GYP_CHROMIUM_NO_ACTION', 0)):
     49     print 'Skipping gyp_webrtc due to GYP_CHROMIUM_NO_ACTION env var.'
     50     sys.exit(0)
     51 
     52   if 'SKIP_WEBRTC_GYP_ENV' not in os.environ:
     53     # Update the environment based on webrtc.gyp_env
     54     gyp_env_path = os.path.join(os.path.dirname(checkout_root),
     55                                 'webrtc.gyp_env')
     56     gyp_helper.apply_gyp_environment_from_file(gyp_env_path)
     57 
     58   # This could give false positives since it doesn't actually do real option
     59   # parsing.  Oh well.
     60   gyp_file_specified = False
     61   for arg in args:
     62     if arg.endswith('.gyp'):
     63       gyp_file_specified = True
     64       break
     65 
     66   # If we didn't get a file, assume 'all.gyp' in the root of the checkout.
     67   if not gyp_file_specified:
     68     # Because of a bug in gyp, simply adding the abspath to all.gyp doesn't
     69     # work, but chdir'ing and adding the relative path does. Spooky :/
     70     os.chdir(checkout_root)
     71     args.append('all.gyp')
     72 
     73   # There shouldn't be a circular dependency relationship between .gyp files,
     74   args.append('--no-circular-check')
     75 
     76   # Default to ninja unless GYP_GENERATORS is set.
     77   if not os.environ.get('GYP_GENERATORS'):
     78     os.environ['GYP_GENERATORS'] = 'ninja'
     79 
     80   # Enable check for missing sources in GYP files on Windows.
     81   if sys.platform.startswith('win'):
     82     gyp_generator_flags = os.getenv('GYP_GENERATOR_FLAGS', '')
     83     if not 'msvs_error_on_missing_sources' in gyp_generator_flags:
     84       os.environ['GYP_GENERATOR_FLAGS'] = (
     85           gyp_generator_flags + ' msvs_error_on_missing_sources=1')
     86 
     87   vs2013_runtime_dll_dirs = None
     88   if int(os.environ.get('DEPOT_TOOLS_WIN_TOOLCHAIN', '1')):
     89     vs2013_runtime_dll_dirs = vs_toolchain.SetEnvironmentAndGetRuntimeDllDirs()
     90 
     91   # Enforce gyp syntax checking. This adds about 20% execution time.
     92   args.append('--check')
     93 
     94   supplemental_includes = GetSupplementalFiles()
     95   gyp_vars = gyp_chromium.GetGypVars(supplemental_includes)
     96 
     97   # Automatically turn on crosscompile support for platforms that need it.
     98   if all(('ninja' in os.environ.get('GYP_GENERATORS', ''),
     99           gyp_vars.get('OS') in ['android', 'ios'],
    100           'GYP_CROSSCOMPILE' not in os.environ)):
    101     os.environ['GYP_CROSSCOMPILE'] = '1'
    102 
    103   args.extend(['-I' + i for i in
    104                gyp_chromium.additional_include_files(supplemental_includes,
    105                                                      args)])
    106 
    107   # Set the gyp depth variable to the root of the checkout.
    108   args.append('--depth=' + os.path.relpath(checkout_root))
    109 
    110   if not use_analyzer:
    111     print 'Updating projects from gyp files...'
    112     sys.stdout.flush()
    113 
    114   # Off we go...
    115   gyp_rc = gyp.main(args)
    116 
    117   if vs2013_runtime_dll_dirs and not use_analyzer:
    118     x64_runtime, x86_runtime = vs2013_runtime_dll_dirs
    119     vs_toolchain.CopyVsRuntimeDlls(
    120         os.path.join(checkout_root, gyp_chromium.GetOutputDirectory()),
    121         (x86_runtime, x64_runtime))
    122 
    123   sys.exit(gyp_rc)
    124