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-rw-r--r--venv/lib/python3.11/site-packages/setuptools/_distutils/spawn.py109
1 files changed, 109 insertions, 0 deletions
diff --git a/venv/lib/python3.11/site-packages/setuptools/_distutils/spawn.py b/venv/lib/python3.11/site-packages/setuptools/_distutils/spawn.py
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+++ b/venv/lib/python3.11/site-packages/setuptools/_distutils/spawn.py
@@ -0,0 +1,109 @@
+"""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 DistutilsExecError
+from distutils.debug import DEBUG
+from distutils import log
+
+
+def spawn(cmd, search_path=1, verbose=0, dry_run=0, env=None): # noqa: C901
+ """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(subprocess.list2cmdline(cmd))
+ if dry_run:
+ return
+
+ if search_path:
+ executable = find_executable(cmd[0])
+ if executable is not None:
+ cmd[0] = executable
+
+ env = env if env is not None else dict(os.environ)
+
+ if sys.platform == 'darwin':
+ from distutils.util import MACOSX_VERSION_VAR, get_macosx_target_ver
+
+ macosx_target_ver = get_macosx_target_ver()
+ if macosx_target_ver:
+ env[MACOSX_VERSION_VAR] = macosx_target_ver
+
+ try:
+ proc = subprocess.Popen(cmd, env=env)
+ proc.wait()
+ exitcode = proc.returncode
+ except OSError as exc:
+ if not DEBUG:
+ cmd = cmd[0]
+ raise DistutilsExecError(
+ "command {!r} failed: {}".format(cmd, exc.args[-1])
+ ) from exc
+
+ if exitcode:
+ if not DEBUG:
+ cmd = cmd[0]
+ raise DistutilsExecError(
+ "command {!r} failed with exit code {}".format(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.
+ """
+ _, ext = os.path.splitext(executable)
+ if (sys.platform == 'win32') and (ext != '.exe'):
+ executable = executable + '.exe'
+
+ if os.path.isfile(executable):
+ return executable
+
+ if path is None:
+ path = os.environ.get('PATH', None)
+ if path is None:
+ try:
+ path = os.confstr("CS_PATH")
+ except (AttributeError, ValueError):
+ # os.confstr() or CS_PATH is not available
+ path = os.defpath
+ # bpo-35755: Don't use os.defpath if the PATH environment variable is
+ # set to an empty string
+
+ # PATH='' doesn't match, whereas PATH=':' looks in the current directory
+ if not path:
+ return None
+
+ paths = path.split(os.pathsep)
+ for p in paths:
+ f = os.path.join(p, executable)
+ if os.path.isfile(f):
+ # the file exists, we have a shot at spawn working
+ return f
+ return None