def find_executable(exe, path=None, _cache={}):
"""Return full path of a executable or None.
Symbolic links are not followed.
"""
key = exe, path
try:
return _cache[key]
except KeyError:
pass
log.debug('find_executable(%r)' % exe)
orig_exe = exe
if path is None:
path = os.environ.get('PATH',os.defpath)
if os.name=='posix':
realpath = os.path.realpath
else:
realpath = lambda a:a
if exe.startswith('"'):
exe = exe[1:-1]
suffixes = ['']
if os.name in ['nt','dos','os2']:
fn,ext = os.path.splitext(exe)
extra_suffixes = ['.exe','.com','.bat']
if ext.lower() not in extra_suffixes:
suffixes = extra_suffixes
if os.path.isabs(exe):
paths = ['']
else:
paths = [ os.path.abspath(p) for p in path.split(os.pathsep) ]
for path in paths:
fn = os.path.join(path, exe)
for s in suffixes:
f_ext = fn+s
if not os.path.islink(f_ext):
f_ext = realpath(f_ext)
if os.path.isfile(f_ext) and os.access(f_ext, os.X_OK):
log.good('Found executable %s' % f_ext)
_cache[key] = f_ext
return f_ext
log.warn('Could not locate executable %s' % orig_exe)
return None
def find_executable(exe, path=None, _cache={}):
"""Return full path of a executable or None.
Symbolic links are not followed.
"""
key = exe, path
try:
return _cache[key]
except KeyError:
pass
log.debug('find_executable(%r)' % exe)
orig_exe = exe
if path is None:
path = os.environ.get('PATH', os.defpath)
if os.name == 'posix':
realpath = os.path.realpath
else:
realpath = lambda a: a
if exe.startswith('"'):
exe = exe[1:-1]
suffixes = ['']
if os.name in ['nt', 'dos', 'os2']:
fn, ext = os.path.splitext(exe)
extra_suffixes = ['.exe', '.com', '.bat']
if ext.lower() not in extra_suffixes:
suffixes = extra_suffixes
if os.path.isabs(exe):
paths = ['']
else:
paths = [os.path.abspath(p) for p in path.split(os.pathsep)]
for path in paths:
fn = os.path.join(path, exe)
for s in suffixes:
f_ext = fn + s
if not os.path.islink(f_ext):
f_ext = realpath(f_ext)
if os.path.isfile(f_ext) and os.access(f_ext, os.X_OK):
log.good('Found executable %s' % f_ext)
_cache[key] = f_ext
return f_ext
log.warn('Could not locate executable %s' % orig_exe)
return None
def find_executable(exe, path=None, _cache={}):
"""Return full path of a executable or None.
Symbolic links are not followed.
"""
key = exe, path
try:
return _cache[key]
except KeyError:
pass
log.debug("find_executable(%r)" % exe)
orig_exe = exe
if path is None:
path = os.environ.get("PATH", os.defpath)
if os.name == "posix":
realpath = os.path.realpath
else:
realpath = lambda a: a
if exe.startswith('"'):
exe = exe[1:-1]
suffixes = [""]
if os.name in ["nt", "dos", "os2"]:
fn, ext = os.path.splitext(exe)
extra_suffixes = [".exe", ".com", ".bat"]
if ext.lower() not in extra_suffixes:
suffixes = extra_suffixes
if os.path.isabs(exe):
paths = [""]
else:
paths = [os.path.abspath(p) for p in path.split(os.pathsep)]
for path in paths:
fn = os.path.join(path, exe)
for s in suffixes:
f_ext = fn + s
if not os.path.islink(f_ext):
f_ext = realpath(f_ext)
if os.path.isfile(f_ext) and os.access(f_ext, os.X_OK):
log.good("Found executable %s" % f_ext)
_cache[key] = f_ext
return f_ext
log.warn("Could not locate executable %s" % orig_exe)
return None
