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Rewrite of the executables_in to also work on Windows where executables are defined by their extension.

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This commit is contained in:
Morten Enemark Lund 2016-05-30 08:00:19 +02:00
parent 82a03b0527
commit 15cfb752f1
1 changed files with 33 additions and 9 deletions
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42
xonsh/tools.py
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@ -317,18 +317,42 @@ class redirect_stderr(_RedirectStream):
_stream = "stderr"
def _executables_in_posix(path):
if PYTHON_VERSION_INFO < (3, 5, 0):
for fname in os.listdir(path):
fpath = os.path.join(path, fname)
if (os.path.exists(fpath) and os.access(fpath, os.X_OK) and \
(not os.path.isdir(fpath))):
yield fname
else:
yield from (x.name for x in scandir(path)
if x.is_file() and os.access(x.path, os.X_OK))
def _executables_in_windows(path):
extensions = builtins.__xonsh_env__.get('PATHEXT',['.COM', '.EXE', '.BAT'])
if PYTHON_VERSION_INFO < (3, 5, 0):
for fname in os.listdir(path):
fpath = os.path.join(path, fname)
if (os.path.exists(fpath) and not os.path.isdir(fpath)):
base_name, ext = os.path.splitext(fname)
if ext.upper() in extensions:
yield fname
else:
for fname in (x.name for x in scandir(path) if x.is_file()):
base_name, ext = os.path.splitext(fname)
if ext.upper() in extensions:
yield fname
def executables_in(path):
"""Returns a generator of files in `path` that the user could execute. """
if ON_WINDOWS:
func = _executables_in_windows
else:
func = _executables_in_posix
try:
if PYTHON_VERSION_INFO < (3, 5, 0):
for i in os.listdir(path):
name = os.path.join(path, i)
if (os.path.exists(name) and os.access(name, os.X_OK) and \
(not os.path.isdir(name))):
yield i
else:
yield from (x.name for x in scandir(path)
if x.is_file() and os.access(x.path, os.X_OK))
yield from func(path)
except PermissionError:
return