1 #!/usr/bin/python 2 # 3 # Copyright 2010 the V8 project authors. All rights reserved. 4 # Redistribution and use in source and binary forms, with or without 5 # modification, are permitted provided that the following conditions are 6 # met: 7 # 8 # * Redistributions of source code must retain the above copyright 9 # notice, this list of conditions and the following disclaimer. 10 # * Redistributions in binary form must reproduce the above 11 # copyright notice, this list of conditions and the following 12 # disclaimer in the documentation and/or other materials provided 13 # with the distribution. 14 # * Neither the name of Google Inc. nor the names of its 15 # contributors may be used to endorse or promote products derived 16 # from this software without specific prior written permission. 17 # 18 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 30 # This script is wrapper for V8 that adds some support for how GYP 31 # is invoked by V8 beyond what can be done in the gclient hooks. 32 33 import glob 34 import os 35 import shlex 36 import sys 37 38 script_dir = os.path.dirname(__file__) 39 v8_root = os.path.normpath(os.path.join(script_dir, os.pardir)) 40 41 sys.path.insert(0, os.path.join(v8_root, 'build', 'gyp', 'pylib')) 42 import gyp 43 44 def apply_gyp_environment(file_path=None): 45 """ 46 Reads in a *.gyp_env file and applies the valid keys to os.environ. 47 """ 48 if not file_path or not os.path.exists(file_path): 49 return 50 file_contents = open(file_path).read() 51 try: 52 file_data = eval(file_contents, {'__builtins__': None}, None) 53 except SyntaxError, e: 54 e.filename = os.path.abspath(file_path) 55 raise 56 supported_vars = ( 'V8_GYP_FILE', 57 'V8_GYP_SYNTAX_CHECK', 58 'GYP_DEFINES', 59 'GYP_GENERATOR_FLAGS', 60 'GYP_GENERATOR_OUTPUT', ) 61 for var in supported_vars: 62 val = file_data.get(var) 63 if val: 64 if var in os.environ: 65 print 'INFO: Environment value for "%s" overrides value in %s.' % ( 66 var, os.path.abspath(file_path) 67 ) 68 else: 69 os.environ[var] = val 70 71 def additional_include_files(args=[]): 72 """ 73 Returns a list of additional (.gypi) files to include, without 74 duplicating ones that are already specified on the command line. 75 """ 76 # Determine the include files specified on the command line. 77 # This doesn't cover all the different option formats you can use, 78 # but it's mainly intended to avoid duplicating flags on the automatic 79 # makefile regeneration which only uses this format. 80 specified_includes = set() 81 for arg in args: 82 if arg.startswith('-I') and len(arg) > 2: 83 specified_includes.add(os.path.realpath(arg[2:])) 84 85 result = [] 86 def AddInclude(path): 87 if os.path.realpath(path) not in specified_includes: 88 result.append(path) 89 90 # Always include common.gypi & features_override.gypi 91 AddInclude(os.path.join(script_dir, 'common.gypi')) 92 93 # Optionally add supplemental .gypi files if present. 94 supplements = glob.glob(os.path.join(v8_root, '*', 'supplement.gypi')) 95 for supplement in supplements: 96 AddInclude(supplement) 97 98 return result 99 100 if __name__ == '__main__': 101 args = sys.argv[1:] 102 103 if 'SKIP_V8_GYP_ENV' not in os.environ: 104 # Update the environment based on v8.gyp_env 105 gyp_env_path = os.path.join(os.path.dirname(v8_root), 'v8.gyp_env') 106 apply_gyp_environment(gyp_env_path) 107 108 # This could give false positives since it doesn't actually do real option 109 # parsing. Oh well. 110 gyp_file_specified = False 111 for arg in args: 112 if arg.endswith('.gyp'): 113 gyp_file_specified = True 114 break 115 116 # If we didn't get a file, check an env var, and then fall back to 117 # assuming 'all.gyp' from the same directory as the script. 118 if not gyp_file_specified: 119 gyp_file = os.environ.get('V8_GYP_FILE') 120 if gyp_file: 121 # Note that V8_GYP_FILE values can't have backslashes as 122 # path separators even on Windows due to the use of shlex.split(). 123 args.extend(shlex.split(gyp_file)) 124 else: 125 args.append(os.path.join(script_dir, 'all.gyp')) 126 127 args.extend(['-I' + i for i in additional_include_files(args)]) 128 129 # There shouldn't be a circular dependency relationship between .gyp files 130 args.append('--no-circular-check') 131 132 # Set the GYP DEPTH variable to the root of the V8 project. 133 args.append('--depth=' + v8_root) 134 135 # If V8_GYP_SYNTAX_CHECK is set to 1, it will invoke gyp with --check 136 # to enfore syntax checking. 137 syntax_check = os.environ.get('V8_GYP_SYNTAX_CHECK') 138 if syntax_check and int(syntax_check): 139 args.append('--check') 140 141 print 'Updating projects from gyp files...' 142 sys.stdout.flush() 143 144 # Off we go... 145 sys.exit(gyp.main(args)) 146
