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import glob
import os.path
import sys
import __builtin__
top_level_dir = None
def top_level_path(*args):
global top_level_dir
if not top_level_dir:
top_level_dir = os.path.join(os.path.dirname(__file__), '..', '..')
return os.path.join(*(top_level_dir,) + args)
def get_dependencies_path(platform):
dependencies_dir = "%s%s" % ('Dependencies', platform.upper())
if 'WEBKIT_OUTPUTDIR' in os.environ:
return os.path.abspath(os.path.join(os.environ['WEBKIT_OUTPUTDIR'], dependencies_dir))
else:
return os.path.abspath(top_level_path('WebKitBuild', dependencies_dir))
def get_config_file_for_platform(platform):
return top_level_path('Tools', platform, 'jhbuildrc')
def enter_jhbuild_environment_if_available(platform):
if not os.path.exists(get_dependencies_path(platform)):
return False
# Sometimes jhbuild chooses to install in a way that reads the library from the source directory, so fall
# back to that method.
source_path = os.path.join(get_dependencies_path(platform), "Source", "jhbuild")
sys.path.insert(0, source_path)
# When loading jhbuild from the source checkout it fails if the SRCDIR, PKGDATADIR or DATADIR aren't present.
__builtin__.__dict__['SRCDIR'] = source_path
__builtin__.__dict__['PKGDATADIR'] = None
__builtin__.__dict__['DATADIR'] = None
# We don't know the Python version, so we just assume that we can safely take the first one in the list.
site_packages_path = glob.glob(os.path.join(get_dependencies_path(platform), "Root", "lib", "*", "site-packages"))
if len(site_packages_path):
site_packages_path = site_packages_path[0]
sys.path.insert(0, site_packages_path)
try:
import jhbuild.config
from jhbuild.errors import FatalError
config = jhbuild.config.Config(get_config_file_for_platform(platform), [])
except FatalError, exception:
sys.stderr.write('Could not load jhbuild config file: %s\n' % exception.args[0])
return False
return True
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