diff options
Diffstat (limited to 'contrib/tools/python3/src/Lib/distutils/spawn.py')
| -rw-r--r-- | contrib/tools/python3/src/Lib/distutils/spawn.py | 128 |
1 files changed, 64 insertions, 64 deletions
diff --git a/contrib/tools/python3/src/Lib/distutils/spawn.py b/contrib/tools/python3/src/Lib/distutils/spawn.py index c0cf6130163..31df3f7faca 100644 --- a/contrib/tools/python3/src/Lib/distutils/spawn.py +++ b/contrib/tools/python3/src/Lib/distutils/spawn.py @@ -1,90 +1,90 @@ -"""distutils.spawn - -Provides the 'spawn()' function, a front-end to various platform- -specific functions for launching another program in a sub-process. -Also provides the 'find_executable()' to search the path for a given -executable name. -""" - -import sys -import os +"""distutils.spawn + +Provides the 'spawn()' function, a front-end to various platform- +specific functions for launching another program in a sub-process. +Also provides the 'find_executable()' to search the path for a given +executable name. +""" + +import sys +import os import subprocess - -from distutils.errors import DistutilsPlatformError, DistutilsExecError -from distutils.debug import DEBUG -from distutils import log - + +from distutils.errors import DistutilsPlatformError, DistutilsExecError +from distutils.debug import DEBUG +from distutils import log + if sys.platform == 'darwin': _cfg_target = None _cfg_target_split = None -def spawn(cmd, search_path=1, verbose=0, dry_run=0): - """Run another program, specified as a command list 'cmd', in a new process. - - 'cmd' is just the argument list for the new process, ie. - cmd[0] is the program to run and cmd[1:] are the rest of its arguments. - There is no way to run a program with a name different from that of its - executable. - - If 'search_path' is true (the default), the system's executable - search path will be used to find the program; otherwise, cmd[0] - must be the exact path to the executable. If 'dry_run' is true, - the command will not actually be run. - - Raise DistutilsExecError if running the program fails in any way; just - return on success. - """ - # cmd is documented as a list, but just in case some code passes a tuple - # in, protect our %-formatting code against horrible death - cmd = list(cmd) - +def spawn(cmd, search_path=1, verbose=0, dry_run=0): + """Run another program, specified as a command list 'cmd', in a new process. + + 'cmd' is just the argument list for the new process, ie. + cmd[0] is the program to run and cmd[1:] are the rest of its arguments. + There is no way to run a program with a name different from that of its + executable. + + If 'search_path' is true (the default), the system's executable + search path will be used to find the program; otherwise, cmd[0] + must be the exact path to the executable. If 'dry_run' is true, + the command will not actually be run. + + Raise DistutilsExecError if running the program fails in any way; just + return on success. + """ + # cmd is documented as a list, but just in case some code passes a tuple + # in, protect our %-formatting code against horrible death + cmd = list(cmd) + log.info(' '.join(cmd)) if dry_run: return - - if search_path: + + if search_path: executable = find_executable(cmd[0]) if executable is not None: cmd[0] = executable - - env = None - if sys.platform == 'darwin': - global _cfg_target, _cfg_target_split - if _cfg_target is None: + + env = None + if sys.platform == 'darwin': + global _cfg_target, _cfg_target_split + if _cfg_target is None: from distutils import sysconfig _cfg_target = sysconfig.get_config_var( 'MACOSX_DEPLOYMENT_TARGET') or '' - if _cfg_target: - _cfg_target_split = [int(x) for x in _cfg_target.split('.')] - if _cfg_target: + if _cfg_target: + _cfg_target_split = [int(x) for x in _cfg_target.split('.')] + if _cfg_target: # Ensure that the deployment target of the build process is not # less than 10.3 if the interpreter was built for 10.3 or later. # This ensures extension modules are built with correct # compatibility values, specifically LDSHARED which can use # '-undefined dynamic_lookup' which only works on >= 10.3. - cur_target = os.environ.get('MACOSX_DEPLOYMENT_TARGET', _cfg_target) + cur_target = os.environ.get('MACOSX_DEPLOYMENT_TARGET', _cfg_target) cur_target_split = [int(x) for x in cur_target.split('.')] if _cfg_target_split[:2] >= [10, 3] and cur_target_split[:2] < [10, 3]: - my_msg = ('$MACOSX_DEPLOYMENT_TARGET mismatch: ' + my_msg = ('$MACOSX_DEPLOYMENT_TARGET mismatch: ' 'now "%s" but "%s" during configure;' 'must use 10.3 or later' - % (cur_target, _cfg_target)) - raise DistutilsPlatformError(my_msg) - env = dict(os.environ, - MACOSX_DEPLOYMENT_TARGET=cur_target) - + % (cur_target, _cfg_target)) + raise DistutilsPlatformError(my_msg) + env = dict(os.environ, + MACOSX_DEPLOYMENT_TARGET=cur_target) + try: proc = subprocess.Popen(cmd, env=env) proc.wait() exitcode = proc.returncode except OSError as exc: - if not DEBUG: + if not DEBUG: cmd = cmd[0] raise DistutilsExecError( "command %r failed: %s" % (cmd, exc.args[-1])) from exc - + if exitcode: if not DEBUG: cmd = cmd[0] @@ -92,16 +92,16 @@ def spawn(cmd, search_path=1, verbose=0, dry_run=0): "command %r failed with exit code %s" % (cmd, exitcode)) -def find_executable(executable, path=None): - """Tries to find 'executable' in the directories listed in 'path'. - - A string listing directories separated by 'os.pathsep'; defaults to - os.environ['PATH']. Returns the complete filename or None if not found. - """ +def find_executable(executable, path=None): + """Tries to find 'executable' in the directories listed in 'path'. + + A string listing directories separated by 'os.pathsep'; defaults to + os.environ['PATH']. Returns the complete filename or None if not found. + """ _, ext = os.path.splitext(executable) - if (sys.platform == 'win32') and (ext != '.exe'): - executable = executable + '.exe' - + if (sys.platform == 'win32') and (ext != '.exe'): + executable = executable + '.exe' + if os.path.isfile(executable): return executable @@ -118,7 +118,7 @@ def find_executable(executable, path=None): # PATH='' doesn't match, whereas PATH=':' looks in the current directory if not path: - return None + return None paths = path.split(os.pathsep) for p in paths: |