NovaBryan/EVE_Dump
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spawn.py (3994B)

      1 #Embedded file name: C:\BuildAgent\work\20d73f1b24eed06e\eve\release\V24.01\carbon\common\stdlib\distutils\spawn.py
      2 __revision__ = '$Id: spawn.py 82110 2010-06-20 13:38:51Z kristjan.jonsson $'
      3 import sys
      4 import os
      5 from distutils.errors import DistutilsPlatformError, DistutilsExecError
      6 from distutils import log
      7 
      8 def spawn(cmd, search_path = 1, verbose = 0, dry_run = 0):
      9     if os.name == 'posix':
     10         _spawn_posix(cmd, search_path, dry_run=dry_run)
     11     elif os.name == 'nt':
     12         _spawn_nt(cmd, search_path, dry_run=dry_run)
     13     elif os.name == 'os2':
     14         _spawn_os2(cmd, search_path, dry_run=dry_run)
     15     else:
     16         raise DistutilsPlatformError, "don't know how to spawn programs on platform '%s'" % os.name
     17 
     18 
     19 def _nt_quote_args(args):
     20     for i, arg in enumerate(args):
     21         if ' ' in arg:
     22             args[i] = '"%s"' % arg
     23 
     24     return args
     25 
     26 
     27 def _spawn_nt(cmd, search_path = 1, verbose = 0, dry_run = 0):
     28     executable = cmd[0]
     29     cmd = _nt_quote_args(cmd)
     30     if search_path:
     31         executable = find_executable(executable) or executable
     32     log.info(' '.join([executable] + cmd[1:]))
     33     if not dry_run:
     34         try:
     35             rc = os.spawnv(os.P_WAIT, executable, cmd)
     36         except OSError as exc:
     37             raise DistutilsExecError, "command '%s' failed: %s" % (cmd[0], exc[-1])
     38 
     39         if rc != 0:
     40             raise DistutilsExecError, "command '%s' failed with exit status %d" % (cmd[0], rc)
     41 
     42 
     43 def _spawn_os2(cmd, search_path = 1, verbose = 0, dry_run = 0):
     44     executable = cmd[0]
     45     if search_path:
     46         executable = find_executable(executable) or executable
     47     log.info(' '.join([executable] + cmd[1:]))
     48     if not dry_run:
     49         try:
     50             rc = os.spawnv(os.P_WAIT, executable, cmd)
     51         except OSError as exc:
     52             raise DistutilsExecError, "command '%s' failed: %s" % (cmd[0], exc[-1])
     53 
     54         if rc != 0:
     55             log.debug("command '%s' failed with exit status %d" % (cmd[0], rc))
     56             raise DistutilsExecError, "command '%s' failed with exit status %d" % (cmd[0], rc)
     57 
     58 
     59 def _spawn_posix(cmd, search_path = 1, verbose = 0, dry_run = 0):
     60     log.info(' '.join(cmd))
     61     if dry_run:
     62         return
     63     exec_fn = search_path and os.execvp or os.execv
     64     pid = os.fork()
     65     if pid == 0:
     66         try:
     67             exec_fn(cmd[0], cmd)
     68         except OSError as e:
     69             sys.stderr.write('unable to execute %s: %s\n' % (cmd[0], e.strerror))
     70             os._exit(1)
     71 
     72         sys.stderr.write('unable to execute %s for unknown reasons' % cmd[0])
     73         os._exit(1)
     74     else:
     75         while 1:
     76             try:
     77                 pid, status = os.waitpid(pid, 0)
     78             except OSError as exc:
     79                 import errno
     80                 if exc.errno == errno.EINTR:
     81                     continue
     82                 raise DistutilsExecError, "command '%s' failed: %s" % (cmd[0], exc[-1])
     83 
     84             if os.WIFSIGNALED(status):
     85                 raise DistutilsExecError, "command '%s' terminated by signal %d" % (cmd[0], os.WTERMSIG(status))
     86             elif os.WIFEXITED(status):
     87                 exit_status = os.WEXITSTATUS(status)
     88                 if exit_status == 0:
     89                     return
     90                 raise DistutilsExecError, "command '%s' failed with exit status %d" % (cmd[0], exit_status)
     91             elif os.WIFSTOPPED(status):
     92                 continue
     93             else:
     94                 raise DistutilsExecError, "unknown error executing '%s': termination status %d" % (cmd[0], status)
     95 
     96 
     97 def find_executable(executable, path = None):
     98     if path is None:
     99         path = os.environ['PATH']
    100     paths = path.split(os.pathsep)
    101     base, ext = os.path.splitext(executable)
    102     if (sys.platform == 'win32' or os.name == 'os2') and ext != '.exe':
    103         executable = executable + '.exe'
    104     if not os.path.isfile(executable):
    105         for p in paths:
    106             f = os.path.join(p, executable)
    107             if os.path.isfile(f):
    108                 return f
    109 
    110         return
    111     else:
    112         return executable