def apply_env_variables(self, overwrite=False):
"""
Change the current environment variables so that we can use the things
are in that environment.
overwrite - over write local environment variables, try to limit the
effect of other things installed on the system.
"""
env_paths = self.get_env_variables()
# Place the paths into our environment
for varname, pathinfo in env_paths.iteritems():
varpath, sep = pathinfo
cur_var = os.environ.get(varname, None)
if cur_var and not overwrite:
os.environ[varname] = varpath + sep + cur_var
else:
os.environ[varname] = varpath
# Setup the Xpkg path
os.environ[xpkg_root_var] = self._env_dir
# Apply toolset environment variables
# TODO: only use this sub on linux
subs = {'LD_SO_PATH' : paths.ld_linux_path(self._env_dir)}
self.toolset.apply_env_vars(subs)
def apply_env_variables(self, overwrite=False):
"""
Change the current environment variables so that we can use the things
are in that environment.
overwrite - over write local environment variables, try to limit the
effect of other things installed on the system.
"""
env_paths = self.get_env_variables()
# Place the paths into our environment
for varname, pathinfo in env_paths.iteritems():
varpath, sep = pathinfo
cur_var = os.environ.get(varname, None)
if cur_var and not overwrite:
os.environ[varname] = varpath + sep + cur_var
else:
os.environ[varname] = varpath
# Setup the Xpkg path
os.environ[xpkg_root_var] = self._env_dir
# Apply toolset environment variables
# TODO: only use this sub on linux
subs = {'LD_SO_PATH': paths.ld_linux_path(self._env_dir)}
self.toolset.apply_env_vars(subs)
def update_ld_so_symlink(root, target_dir=None):
"""
Maintains a symlink from <env_dir>/lib/ld-linux-xpkg.so to the
Environment's local one or the system copy.
root - the root directory of our environment
target_dir - where to place the symlink (defaults to root)
"""
# Use the current Python interpreters ld-linux path as the system
# version
interp_path = readelf_interp(sys.executable)
if interp_path is None:
msg = 'Could not find ELF program interpreter for: ' + sys.executable
raise Exception(msg)
# Search for system copies (this is kind of hacky right now)
search_dirs = [
'lib', 'lib64',
os.path.join('lib', 'x86_64-linux-gnu'),
os.path.join('lib', 'i386-linux-gnu')
]
search_paths = [os.path.join(root, d) for d in search_dirs]
search_patterns = ['ld-2.[0-9]+.so', 'ld64-uClibc.so.0']
search_regex = [re.compile(p) for p in search_patterns]
env_interp = None
for search_dir in [p for p in search_paths if os.path.exists(p)]:
for filename in os.listdir(search_dir):
for regex in search_regex:
match = regex.match(filename)
if match and match.span()[1] == len(filename):
env_interp = os.path.join(search_dir, filename)
# Chose the environment interp the source one
if env_interp:
source_interp = env_interp
else:
source_interp = interp_path
# Remove the existing symlink if present
if target_dir is None:
target_root = root
else:
target_root = target_dir
link_target = paths.ld_linux_path(target_root)
if os.path.lexists(link_target):
os.remove(link_target)
# Make sure the target directory is created
link_dir, _ = os.path.split(link_target)
util.ensure_dir(link_dir)
# Place down our symlink
os.symlink(source_interp, link_target)
return link_target
def get_toolset_env_info(self):
subs = {'LD_SO_PATH' : paths.ld_linux_path(self._env_dir)}
return self.toolset.get_env_var_info(subs)
def update_ld_so_symlink(root, target_dir = None):
"""
Maintains a symlink from <env_dir>/lib/ld-linux-xpkg.so to the
Environment's local one or the system copy.
root - the root directory of our environment
target_dir - where to place the symlink (defaults to root)
"""
# Use the current Python interpreters ld-linux path as the system
# version
interp_path = readelf_interp(sys.executable)
if interp_path is None:
msg = 'Could not find ELF program interpreter for: ' + sys.executable
raise Exception(msg)
# Search for system copies (this is kind of hacky right now)
search_dirs = [
'lib',
'lib64',
os.path.join('lib', 'x86_64-linux-gnu'),
os.path.join('lib', 'i386-linux-gnu')
]
search_paths = [os.path.join(root, d) for d in search_dirs]
search_patterns = [
'ld-2.[0-9]+.so',
'ld64-uClibc.so.0'
]
search_regex = [re.compile(p) for p in search_patterns]
env_interp = None
for search_dir in [p for p in search_paths if os.path.exists(p)]:
for filename in os.listdir(search_dir):
for regex in search_regex:
match = regex.match(filename)
if match and match.span()[1] == len(filename):
env_interp = os.path.join(search_dir, filename)
# Chose the environment interp the source one
if env_interp:
source_interp = env_interp
else:
source_interp = interp_path
# Remove the existing symlink if present
if target_dir is None:
target_root = root
else:
target_root = target_dir
link_target = paths.ld_linux_path(target_root)
if os.path.lexists(link_target):
os.remove(link_target)
# Make sure the target directory is created
link_dir, _ = os.path.split(link_target)
util.ensure_dir(link_dir)
# Place down our symlink
os.symlink(source_interp, link_target)
return link_target
def get_toolset_env_info(self):
subs = {'LD_SO_PATH': paths.ld_linux_path(self._env_dir)}
return self.toolset.get_env_var_info(subs)
