def _execvpe(file, args, env=None):
if env is not None:
func = posix.execve
argrest = (args, env)
else:
func = posix.execv
argrest = (args, )
env = posix.environ
head, tail = os_path.split(file)
if head:
func(file, *argrest)
return
if 'PATH' in env:
envpath = env['PATH']
else:
envpath = os_path.defpath
PATH = envpath.split(os_path.pathsep)
saved_exc = None
saved_tb = None
for dir in PATH:
fullname = os_path.join(dir, file)
try:
func(fullname, *argrest)
except posix.error as e:
tb = sys.exc_info()[2]
if (e.errno != errno.ENOENT and e.errno != errno.ENOTDIR
and saved_exc is None):
saved_exc = e
saved_tb = tb
# TODO: Don't use this archaic syntax?
if saved_exc:
raise posix.error, saved_exc, saved_tb
raise posix.error, e, tb
def Matches(self, comp):
# type: (Api) -> Iterator[Union[Iterator, Iterator[str]]]
to_complete = comp.to_complete
# Problem: .. and ../.. don't complete /.
# TODO: Set display_pos before fixing this.
#import os
#to_complete = os.path.normpath(to_complete)
dirname, basename = os_path.split(to_complete)
if dirname == '': # We're completing in this directory
to_list = '.'
else: # We're completing in some other directory
to_list = dirname
if 0:
log('basename %r', basename)
log('to_list %r', to_list)
log('dirname %r', dirname)
try:
names = posix.listdir(to_list)
except OSError as e:
return # nothing
for name in names:
path = os_path.join(dirname, name)
if path.startswith(to_complete):
if self.dirs_only: # add_slash not used here
# NOTE: There is a duplicate isdir() check later to add a trailing
# slash. Consolidate the checks for fewer stat() ops. This is hard
# because all the completion actions must obey the same interface.
# We could have another type like candidate = File | Dir |
# OtherString ?
if path_stat.isdir(path):
yield path
continue
if self.exec_only:
# TODO: Handle exception if file gets deleted in between listing and
# check?
if not posix.access(path, posix.X_OK_):
continue
if self.add_slash and path_stat.isdir(path):
yield path + '/'
else:
yield path
