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#!/usr/bin/python # # Copyright 2010 the V8 project authors. All rights reserved. # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions are # met: # # * Redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer. # * Redistributions in binary form must reproduce the above # copyright notice, this list of conditions and the following # disclaimer in the documentation and/or other materials provided # with the distribution. # * Neither the name of Google Inc. nor the names of its # contributors may be used to endorse or promote products derived # from this software without specific prior written permission. # # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS # “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

# This script is wrapper for V8 that adds some support for how GYP # is invoked by V8 beyond what can be done in the gclient hooks.

import glob import os import shlex import sys

script_dir = os.path.dirname(__file__) v8_root = os.path.normpath(os.path.join(script_dir, os.pardir))

sys.path.insert(0, os.path.join(v8_root, ‘build’, ‘gyp’, ‘pylib’)) import gyp

def apply_gyp_environment(file_path=None):

"""
Reads in a *.gyp_env file and applies the valid keys to os.environ.
"""
if not file_path or not os.path.exists(file_path):
  return
file_contents = open(file_path).read()
try:
  file_data = eval(file_contents, {'__builtins__': None}, None)
except SyntaxError, e:
  e.filename = os.path.abspath(file_path)
  raise
supported_vars = ( 'V8_GYP_FILE',
                   'V8_GYP_SYNTAX_CHECK',
                   'GYP_DEFINES',
                   'GYP_GENERATOR_FLAGS',
                   'GYP_GENERATOR_OUTPUT', )
for var in supported_vars:
  val = file_data.get(var)
  if val:
    if var in os.environ:
      print 'INFO: Environment value for "%s" overrides value in %s.' % (
          var, os.path.abspath(file_path)
      )
    else:
      os.environ[var] = val

def additional_include_files(args=[]):

"""
Returns a list of additional (.gypi) files to include, without
duplicating ones that are already specified on the command line.
"""
# Determine the include files specified on the command line.
# This doesn't cover all the different option formats you can use,
# but it's mainly intended to avoid duplicating flags on the automatic
# makefile regeneration which only uses this format.
specified_includes = set()
for arg in args:
  if arg.startswith('-I') and len(arg) > 2:
    specified_includes.add(os.path.realpath(arg[2:]))

result = []
def AddInclude(path):
  if os.path.realpath(path) not in specified_includes:
    result.append(path)

# Always include common.gypi & features_override.gypi
AddInclude(os.path.join(script_dir, 'common.gypi'))

# Optionally add supplemental .gypi files if present.
supplements = glob.glob(os.path.join(v8_root, '*', 'supplement.gypi'))
for supplement in supplements:
  AddInclude(supplement)

return result

if __name__ == ‘__main__’:

args = sys.argv[1:]

if 'SKIP_V8_GYP_ENV' not in os.environ:
  # Update the environment based on v8.gyp_env
  gyp_env_path = os.path.join(os.path.dirname(v8_root), 'v8.gyp_env')
  apply_gyp_environment(gyp_env_path)

# This could give false positives since it doesn't actually do real option
# parsing.  Oh well.
gyp_file_specified = False
for arg in args:
  if arg.endswith('.gyp'):
    gyp_file_specified = True
    break

# If we didn't get a file, check an env var, and then fall back to
# assuming 'all.gyp' from the same directory as the script.
if not gyp_file_specified:
  gyp_file = os.environ.get('V8_GYP_FILE')
  if gyp_file:
    # Note that V8_GYP_FILE values can't have backslashes as
    # path separators even on Windows due to the use of shlex.split().
    args.extend(shlex.split(gyp_file))
  else:
    args.append(os.path.join(script_dir, 'all.gyp'))

args.extend(['-I' + i for i in additional_include_files(args)])

# There shouldn't be a circular dependency relationship between .gyp files
args.append('--no-circular-check')

# Set the GYP DEPTH variable to the root of the V8 project.
args.append('--depth=' + v8_root)

# If V8_GYP_SYNTAX_CHECK is set to 1, it will invoke gyp with --check
# to enfore syntax checking.
syntax_check = os.environ.get('V8_GYP_SYNTAX_CHECK')
if syntax_check and int(syntax_check):
  args.append('--check')

print 'Updating projects from gyp files...'
sys.stdout.flush()

# Off we go...
sys.exit(gyp.main(args))

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