def relto(self, relpath):
""" return a string which is the relative part of the path
to the given 'relpath'.
"""
if not isinstance(relpath, (str, PathBase)):
raise TypeError("%r: not a string or path object" %(relpath,))
strrelpath = str(relpath)
if strrelpath and strrelpath[-1] != self.sep:
strrelpath += self.sep
#assert strrelpath[-1] == self.sep
#assert strrelpath[-2] != self.sep
strself = self.strpath
if sys.platform == "win32" or getattr(os, '_name', None) == 'nt':
if os.path.normcase(strself).startswith(
os.path.normcase(strrelpath)):
return strself[len(strrelpath):]
elif strself.startswith(strrelpath):
return strself[len(strrelpath):]
return ""
python类sep()的实例源码
def bestrelpath(self, dest):
""" return a string which is a relative path from self
(assumed to be a directory) to dest such that
self.join(bestrelpath) == dest and if not such
path can be determined return dest.
"""
try:
if self == dest:
return os.curdir
base = self.common(dest)
if not base: # can be the case on windows
return str(dest)
self2base = self.relto(base)
reldest = dest.relto(base)
if self2base:
n = self2base.count(self.sep) + 1
else:
n = 0
l = [os.pardir] * n
if reldest:
l.append(reldest)
target = dest.sep.join(l)
return target
except AttributeError:
return str(dest)
def __call__(self, path):
pattern = self.pattern
if (pattern.find(path.sep) == -1 and
iswin32 and
pattern.find(posixpath.sep) != -1):
# Running on Windows, the pattern has no Windows path separators,
# and the pattern has one or more Posix path separators. Replace
# the Posix path separators with the Windows path separator.
pattern = pattern.replace(posixpath.sep, path.sep)
if pattern.find(path.sep) == -1:
name = path.basename
else:
name = str(path) # path.strpath # XXX svn?
if not os.path.isabs(pattern):
pattern = '*' + path.sep + pattern
return py.std.fnmatch.fnmatch(name, pattern)
def relpath(path, start=curdir):
"""Return a relative version of a path"""
if not path:
raise ValueError("no path specified")
if type(start) is unicode:
start_list = unicode_abspath(start).split(sep)
else:
start_list = abspath(start).split(sep)
if type(path) is unicode:
path_list = unicode_abspath(path).split(sep)
else:
path_list = abspath(path).split(sep)
# Work out how much of the filepath is shared by start and path.
i = len(commonprefix([start_list, path_list]))
rel_list = [pardir] * (len(start_list)-i) + path_list[i:]
if not rel_list:
return curdir
return join(*rel_list)
# End Futures
def relto(self, relpath):
""" return a string which is the relative part of the path
to the given 'relpath'.
"""
if not isinstance(relpath, (str, PathBase)):
raise TypeError("%r: not a string or path object" %(relpath,))
strrelpath = str(relpath)
if strrelpath and strrelpath[-1] != self.sep:
strrelpath += self.sep
#assert strrelpath[-1] == self.sep
#assert strrelpath[-2] != self.sep
strself = self.strpath
if sys.platform == "win32" or getattr(os, '_name', None) == 'nt':
if os.path.normcase(strself).startswith(
os.path.normcase(strrelpath)):
return strself[len(strrelpath):]
elif strself.startswith(strrelpath):
return strself[len(strrelpath):]
return ""
def bestrelpath(self, dest):
""" return a string which is a relative path from self
(assumed to be a directory) to dest such that
self.join(bestrelpath) == dest and if not such
path can be determined return dest.
"""
try:
if self == dest:
return os.curdir
base = self.common(dest)
if not base: # can be the case on windows
return str(dest)
self2base = self.relto(base)
reldest = dest.relto(base)
if self2base:
n = self2base.count(self.sep) + 1
else:
n = 0
l = [os.pardir] * n
if reldest:
l.append(reldest)
target = dest.sep.join(l)
return target
except AttributeError:
return str(dest)
def __call__(self, path):
pattern = self.pattern
if (pattern.find(path.sep) == -1 and
iswin32 and
pattern.find(posixpath.sep) != -1):
# Running on Windows, the pattern has no Windows path separators,
# and the pattern has one or more Posix path separators. Replace
# the Posix path separators with the Windows path separator.
pattern = pattern.replace(posixpath.sep, path.sep)
if pattern.find(path.sep) == -1:
name = path.basename
else:
name = str(path) # path.strpath # XXX svn?
if not os.path.isabs(pattern):
pattern = '*' + path.sep + pattern
return py.std.fnmatch.fnmatch(name, pattern)
def relto(self, relpath):
""" return a string which is the relative part of the path
to the given 'relpath'.
"""
if not isinstance(relpath, (str, PathBase)):
raise TypeError("%r: not a string or path object" %(relpath,))
strrelpath = str(relpath)
if strrelpath and strrelpath[-1] != self.sep:
strrelpath += self.sep
#assert strrelpath[-1] == self.sep
#assert strrelpath[-2] != self.sep
strself = self.strpath
if sys.platform == "win32" or getattr(os, '_name', None) == 'nt':
if os.path.normcase(strself).startswith(
os.path.normcase(strrelpath)):
return strself[len(strrelpath):]
elif strself.startswith(strrelpath):
return strself[len(strrelpath):]
return ""
def bestrelpath(self, dest):
""" return a string which is a relative path from self
(assumed to be a directory) to dest such that
self.join(bestrelpath) == dest and if not such
path can be determined return dest.
"""
try:
if self == dest:
return os.curdir
base = self.common(dest)
if not base: # can be the case on windows
return str(dest)
self2base = self.relto(base)
reldest = dest.relto(base)
if self2base:
n = self2base.count(self.sep) + 1
else:
n = 0
l = [os.pardir] * n
if reldest:
l.append(reldest)
target = dest.sep.join(l)
return target
except AttributeError:
return str(dest)
def __call__(self, path):
pattern = self.pattern
if (pattern.find(path.sep) == -1 and
iswin32 and
pattern.find(posixpath.sep) != -1):
# Running on Windows, the pattern has no Windows path separators,
# and the pattern has one or more Posix path separators. Replace
# the Posix path separators with the Windows path separator.
pattern = pattern.replace(posixpath.sep, path.sep)
if pattern.find(path.sep) == -1:
name = path.basename
else:
name = str(path) # path.strpath # XXX svn?
if not os.path.isabs(pattern):
pattern = '*' + path.sep + pattern
return py.std.fnmatch.fnmatch(name, pattern)
def relto(self, relpath):
""" return a string which is the relative part of the path
to the given 'relpath'.
"""
if not isinstance(relpath, (str, PathBase)):
raise TypeError("%r: not a string or path object" %(relpath,))
strrelpath = str(relpath)
if strrelpath and strrelpath[-1] != self.sep:
strrelpath += self.sep
#assert strrelpath[-1] == self.sep
#assert strrelpath[-2] != self.sep
strself = self.strpath
if sys.platform == "win32" or getattr(os, '_name', None) == 'nt':
if os.path.normcase(strself).startswith(
os.path.normcase(strrelpath)):
return strself[len(strrelpath):]
elif strself.startswith(strrelpath):
return strself[len(strrelpath):]
return ""
def bestrelpath(self, dest):
""" return a string which is a relative path from self
(assumed to be a directory) to dest such that
self.join(bestrelpath) == dest and if not such
path can be determined return dest.
"""
try:
if self == dest:
return os.curdir
base = self.common(dest)
if not base: # can be the case on windows
return str(dest)
self2base = self.relto(base)
reldest = dest.relto(base)
if self2base:
n = self2base.count(self.sep) + 1
else:
n = 0
l = [os.pardir] * n
if reldest:
l.append(reldest)
target = dest.sep.join(l)
return target
except AttributeError:
return str(dest)
def test_all_table_entries(harness, files, request_uri, expected):
# set up the specified files
realfiles = tuple([ f if f.endswith('/') else (f, GENERIC_SPT) for f in files ])
harness.fs.www.mk(*realfiles)
try:
state = harness._hit('GET', request_uri, want='state',
return_after='dispatch_path_to_filesystem')
except exceptions.NotFound:
result = '404'
except exceptions.Redirect as err:
result = '302 ' + err.message
else:
result = '200'
path = format_result(**state)
if os.sep != posixpath.sep:
path = path.replace(os.sep, posixpath.sep)
path = path[len(harness.fs.www.root)+1:]
if path:
result += " " + path
if expected.endswith("*"):
expected = expected[:-1]
assert result == expected, "Requesting %r, got %r instead of %r" % (request_uri, result, expected)
def path_advance(thepath, sep=os.sep):
'''generator to iterate over a file path forwards
:param str thepath: the path to navigate forwards
:param str sep: *Default: os.sep* - the path separator to use
:returns: (iter)able of strings
'''
# handle a direct path
pre = ''
if thepath[0] == sep:
pre = sep
curpath = ''
parts = thepath.split(sep)
if pre:
if parts[0]:
parts[0] = pre + parts[0]
else:
parts[1] = pre + parts[1]
for part in parts:
curpath = os.path.join(curpath, part)
if curpath:
yield curpath
def path_retreat(thepath, sep=os.sep):
'''generator to iterate over a file path in reverse
:param str thepath: the path to retreat over
:param str sep: *Default: os.sep* - the path separator to use
:returns: (iter)able of strings
'''
pre = ''
if thepath[0] == sep:
pre = sep
parts = thepath.split(sep)
while parts:
if os.path.join(*parts):
yield '%s%s' % (pre, os.path.join(*parts))
parts = parts[:-1]
def reparent(newparent, oldpath):
'''when copying or moving a directory structure, you need to re-parent the
oldpath. When using os.path.join to calculate this new path, the
appearance of a / root path at the beginning of oldpath, supplants the
newparent and we don't want this to happen, so we need to make the oldpath
root appear as a child of the newparent.
:param: str newparent: the new parent location for oldpath (target)
:param str oldpath: the path being adopted by newparent (source)
:returns: (str) resulting adoptive path
'''
if oldpath[0] in (posixpath.sep, ntpath.sep):
oldpath = '.' + oldpath
return os.path.join(newparent, oldpath)
def relto(self, relpath):
""" return a string which is the relative part of the path
to the given 'relpath'.
"""
if not isinstance(relpath, (str, PathBase)):
raise TypeError("%r: not a string or path object" %(relpath,))
strrelpath = str(relpath)
if strrelpath and strrelpath[-1] != self.sep:
strrelpath += self.sep
#assert strrelpath[-1] == self.sep
#assert strrelpath[-2] != self.sep
strself = str(self)
if sys.platform == "win32" or getattr(os, '_name', None) == 'nt':
if os.path.normcase(strself).startswith(
os.path.normcase(strrelpath)):
return strself[len(strrelpath):]
elif strself.startswith(strrelpath):
return strself[len(strrelpath):]
return ""
def bestrelpath(self, dest):
""" return a string which is a relative path from self
(assumed to be a directory) to dest such that
self.join(bestrelpath) == dest and if not such
path can be determined return dest.
"""
try:
if self == dest:
return os.curdir
base = self.common(dest)
if not base: # can be the case on windows
return str(dest)
self2base = self.relto(base)
reldest = dest.relto(base)
if self2base:
n = self2base.count(self.sep) + 1
else:
n = 0
l = [os.pardir] * n
if reldest:
l.append(reldest)
target = dest.sep.join(l)
return target
except AttributeError:
return str(dest)
def __call__(self, path):
pattern = self.pattern
if (pattern.find(path.sep) == -1 and
iswin32 and
pattern.find(posixpath.sep) != -1):
# Running on Windows, the pattern has no Windows path separators,
# and the pattern has one or more Posix path separators. Replace
# the Posix path separators with the Windows path separator.
pattern = pattern.replace(posixpath.sep, path.sep)
if pattern.find(path.sep) == -1:
name = path.basename
else:
name = str(path) # path.strpath # XXX svn?
if not os.path.isabs(pattern):
pattern = '*' + path.sep + pattern
return py.std.fnmatch.fnmatch(name, pattern)
def relto(self, relpath):
""" return a string which is the relative part of the path
to the given 'relpath'.
"""
if not isinstance(relpath, (str, PathBase)):
raise TypeError("%r: not a string or path object" %(relpath,))
strrelpath = str(relpath)
if strrelpath and strrelpath[-1] != self.sep:
strrelpath += self.sep
#assert strrelpath[-1] == self.sep
#assert strrelpath[-2] != self.sep
strself = str(self)
if sys.platform == "win32" or getattr(os, '_name', None) == 'nt':
if os.path.normcase(strself).startswith(
os.path.normcase(strrelpath)):
return strself[len(strrelpath):]
elif strself.startswith(strrelpath):
return strself[len(strrelpath):]
return ""
def bestrelpath(self, dest):
""" return a string which is a relative path from self
(assumed to be a directory) to dest such that
self.join(bestrelpath) == dest and if not such
path can be determined return dest.
"""
try:
if self == dest:
return os.curdir
base = self.common(dest)
if not base: # can be the case on windows
return str(dest)
self2base = self.relto(base)
reldest = dest.relto(base)
if self2base:
n = self2base.count(self.sep) + 1
else:
n = 0
l = [os.pardir] * n
if reldest:
l.append(reldest)
target = dest.sep.join(l)
return target
except AttributeError:
return str(dest)
def relto(self, relpath):
""" return a string which is the relative part of the path
to the given 'relpath'.
"""
if not isinstance(relpath, (str, PathBase)):
raise TypeError("%r: not a string or path object" %(relpath,))
strrelpath = str(relpath)
if strrelpath and strrelpath[-1] != self.sep:
strrelpath += self.sep
#assert strrelpath[-1] == self.sep
#assert strrelpath[-2] != self.sep
strself = self.strpath
if sys.platform == "win32" or getattr(os, '_name', None) == 'nt':
if os.path.normcase(strself).startswith(
os.path.normcase(strrelpath)):
return strself[len(strrelpath):]
elif strself.startswith(strrelpath):
return strself[len(strrelpath):]
return ""
def bestrelpath(self, dest):
""" return a string which is a relative path from self
(assumed to be a directory) to dest such that
self.join(bestrelpath) == dest and if not such
path can be determined return dest.
"""
try:
if self == dest:
return os.curdir
base = self.common(dest)
if not base: # can be the case on windows
return str(dest)
self2base = self.relto(base)
reldest = dest.relto(base)
if self2base:
n = self2base.count(self.sep) + 1
else:
n = 0
l = [os.pardir] * n
if reldest:
l.append(reldest)
target = dest.sep.join(l)
return target
except AttributeError:
return str(dest)
def __call__(self, path):
pattern = self.pattern
if (pattern.find(path.sep) == -1 and
iswin32 and
pattern.find(posixpath.sep) != -1):
# Running on Windows, the pattern has no Windows path separators,
# and the pattern has one or more Posix path separators. Replace
# the Posix path separators with the Windows path separator.
pattern = pattern.replace(posixpath.sep, path.sep)
if pattern.find(path.sep) == -1:
name = path.basename
else:
name = str(path) # path.strpath # XXX svn?
if not os.path.isabs(pattern):
pattern = '*' + path.sep + pattern
return fnmatch.fnmatch(name, pattern)
def get_template(self, uri):
"""Return a :class:`.Template` object corresponding to the given
``uri``.
.. note:: The ``relativeto`` argument is not supported here at
the moment.
"""
try:
if self.filesystem_checks:
return self._check(uri, self._collection[uri])
else:
return self._collection[uri]
except KeyError:
u = re.sub(r'^\/+', '', uri)
for dir in self.directories:
# make sure the path seperators are posix - os.altsep is empty
# on POSIX and cannot be used.
dir = dir.replace(os.path.sep, posixpath.sep)
srcfile = posixpath.normpath(posixpath.join(dir, u))
if os.path.isfile(srcfile):
return self._load(srcfile, uri)
else:
raise exceptions.TopLevelLookupException(
"Cant locate template for uri %r" % uri)
def PullAppFilesImpl(device, package, files, directory):
device_dir = device.GetApplicationDataDirectory(package)
host_dir = os.path.join(directory, str(device))
for f in files:
device_file = posixpath.join(device_dir, f)
host_file = os.path.join(host_dir, *f.split(posixpath.sep))
host_file_base, ext = os.path.splitext(host_file)
for i in itertools.count():
host_file = '%s_%d%s' % (host_file_base, i, ext)
if not os.path.exists(host_file):
break
device.PullFile(device_file, host_file)
def _extract_local_archive(working_dir, cleanup_functions, env_name, local_archive):
"""Helper internal function for extracting a zipfile and ensure that a cleanup is queued.
Parameters
----------
working_dir : str
cleanup_functions : List[() -> NoneType]
env_name : str
local_archive : str
"""
with zipfile.ZipFile(local_archive) as z:
z.extractall(working_dir)
archive_filenames = z.namelist()
root_elements = {m.split(posixpath.sep, 1)[0] for m in archive_filenames}
abs_archive_filenames = [os.path.abspath(os.path.join(working_dir, f)) for f in root_elements]
def cleanup():
for fn in abs_archive_filenames:
if os.path.isdir(fn):
shutil.rmtree(fn)
else:
os.unlink(fn)
cleanup_functions.append(cleanup)
env_dir = os.path.join(working_dir, env_name)
# Because of a python deficiency (Issue15795), the execute bits aren't
# preserved when the zip file is unzipped. Need to add them back here.
_fix_permissions(env_dir)
return env_dir
def PullAppFilesImpl(device, package, files, directory):
device_dir = device.GetApplicationDataDirectory(package)
host_dir = os.path.join(directory, str(device))
for f in files:
device_file = posixpath.join(device_dir, f)
host_file = os.path.join(host_dir, *f.split(posixpath.sep))
host_file_base, ext = os.path.splitext(host_file)
for i in itertools.count():
host_file = '%s_%d%s' % (host_file_base, i, ext)
if not os.path.exists(host_file):
break
device.PullFile(device_file, host_file)
def get_template(self, uri):
"""Return a :class:`.Template` object corresponding to the given
``uri``.
.. note:: The ``relativeto`` argument is not supported here at
the moment.
"""
try:
if self.filesystem_checks:
return self._check(uri, self._collection[uri])
else:
return self._collection[uri]
except KeyError:
u = re.sub(r'^\/+', '', uri)
for dir in self.directories:
# make sure the path seperators are posix - os.altsep is empty
# on POSIX and cannot be used.
dir = dir.replace(os.path.sep, posixpath.sep)
srcfile = posixpath.normpath(posixpath.join(dir, u))
if os.path.isfile(srcfile):
return self._load(srcfile, uri)
else:
raise exceptions.TopLevelLookupException(
"Cant locate template for uri %r" % uri)
def get_template(self, uri):
"""Return a :class:`.Template` object corresponding to the given
``uri``.
.. note:: The ``relativeto`` argument is not supported here at
the moment.
"""
try:
if self.filesystem_checks:
return self._check(uri, self._collection[uri])
else:
return self._collection[uri]
except KeyError:
u = re.sub(r'^\/+', '', uri)
for dir in self.directories:
# make sure the path seperators are posix - os.altsep is empty
# on POSIX and cannot be used.
dir = dir.replace(os.path.sep, posixpath.sep)
srcfile = posixpath.normpath(posixpath.join(dir, u))
if os.path.isfile(srcfile):
return self._load(srcfile, uri)
else:
raise exceptions.TopLevelLookupException(
"Cant locate template for uri %r" % uri)
