def newer(source, target):
"""Tells if the target is newer than the source.
Return true if 'source' exists and is more recently modified than
'target', or if 'source' exists and 'target' doesn't.
Return false if both exist and 'target' is the same age or younger
than 'source'. Raise DistutilsFileError if 'source' does not exist.
Note that this test is not very accurate: files created in the same second
will have the same "age".
"""
if not os.path.exists(source):
raise DistutilsFileError("file '%s' does not exist" %
os.path.abspath(source))
if not os.path.exists(target):
return True
return os.stat(source)[ST_MTIME] > os.stat(target)[ST_MTIME]
python类ST_MTIME的实例源码
def _check(self, uri, template):
if template.filename is None:
return template
try:
template_stat = os.stat(template.filename)
if template.module._modified_time < \
template_stat[stat.ST_MTIME]:
self._collection.pop(uri, None)
return self._load(template.filename, uri)
else:
return template
except OSError:
self._collection.pop(uri, None)
raise exceptions.TemplateLookupException(
"Cant locate template for uri %r" % uri)
def _check(self, uri, template):
if template.filename is None:
return template
try:
template_stat = os.stat(template.filename)
if template.module._modified_time < \
template_stat[stat.ST_MTIME]:
self._collection.pop(uri, None)
return self._load(template.filename, uri)
else:
return template
except OSError:
self._collection.pop(uri, None)
raise exceptions.TemplateLookupException(
"Cant locate template for uri %r" % uri)
def _check(self, uri, template):
if template.filename is None:
return template
try:
template_stat = os.stat(template.filename)
if template.module._modified_time < \
template_stat[stat.ST_MTIME]:
self._collection.pop(uri, None)
return self._load(template.filename, uri)
else:
return template
except OSError:
self._collection.pop(uri, None)
raise exceptions.TemplateLookupException(
"Cant locate template for uri %r" % uri)
def _newest_file(dirpath):
"""Find the last modified RCS file in a directory"""
newest_file = None
newest_time = 0
### FIXME: This sucker is leaking unauthorized paths! ###
for subfile in os.listdir(dirpath):
### filter CVS locks? stale NFS handles?
if subfile[-2:] != ',v':
continue
path = os.path.join(dirpath, subfile)
info = os.stat(path)
if not stat.S_ISREG(info[stat.ST_MODE]):
continue
if info[stat.ST_MTIME] > newest_time:
kind, verboten = _check_path(path)
if kind == vclib.FILE and not verboten:
newest_file = subfile[:-2]
newest_time = info[stat.ST_MTIME]
return newest_file
def newer(source, target):
"""Tells if the target is newer than the source.
Return true if 'source' exists and is more recently modified than
'target', or if 'source' exists and 'target' doesn't.
Return false if both exist and 'target' is the same age or younger
than 'source'. Raise DistutilsFileError if 'source' does not exist.
Note that this test is not very accurate: files created in the same second
will have the same "age".
"""
if not os.path.exists(source):
raise DistutilsFileError("file '%s' does not exist" %
os.path.abspath(source))
if not os.path.exists(target):
return True
return os.stat(source)[ST_MTIME] > os.stat(target)[ST_MTIME]
def _check(self, uri, template):
if template.filename is None:
return template
try:
template_stat = os.stat(template.filename)
if template.module._modified_time < \
template_stat[stat.ST_MTIME]:
self._collection.pop(uri, None)
return self._load(template.filename, uri)
else:
return template
except OSError:
self._collection.pop(uri, None)
raise exceptions.TemplateLookupException(
"Cant locate template for uri %r" % uri)
def newer (source, target):
"""Return true if 'source' exists and is more recently modified than
'target', or if 'source' exists and 'target' doesn't. Return false if
both exist and 'target' is the same age or younger than 'source'.
Raise DistutilsFileError if 'source' does not exist.
"""
if not os.path.exists(source):
raise DistutilsFileError("file '%s' does not exist" %
os.path.abspath(source))
if not os.path.exists(target):
return 1
from stat import ST_MTIME
mtime1 = os.stat(source)[ST_MTIME]
mtime2 = os.stat(target)[ST_MTIME]
return mtime1 > mtime2
# newer ()
def updateDisplay(self, file_list):
""""""
for path in file_list:
file_stats = os.stat(path)
creation_time = time.strftime(
"%m/%d/%Y %I:%M %p",
time.localtime(file_stats[stat.ST_CTIME]))
modified_time = time.strftime(
"%m/%d/%Y %I:%M %p",
time.localtime(file_stats[stat.ST_MTIME]))
file_size = file_stats[stat.ST_SIZE]
if file_size > 1024:
file_size = file_size / 1024.0
file_size = "%.2f KB" % file_size
self.file_list.append(FileInfo(path,
creation_time,
modified_time,
file_size))
self.olv.SetObjects(self.file_list)
def __getitem__(self,key):
""" db['key'] reading """
fil = self.root / key
try:
mtime = (fil.stat()[stat.ST_MTIME])
except OSError:
raise KeyError(key)
if fil in self.cache and mtime == self.cache[fil][1]:
return self.cache[fil][0]
try:
# The cached item has expired, need to read
with fil.open("rb") as f:
obj = pickle.loads(f.read())
except:
raise KeyError(key)
self.cache[fil] = (obj,mtime)
return obj
def cmd_mdtm(self, line):
'show last modification time of file'
filename = line[1]
if not self.filesystem.isfile(filename):
self.respond('550 "%s" is not a file' % filename)
else:
mtime = time.gmtime(self.filesystem.stat(filename)[stat.ST_MTIME])
self.respond(
'213 %4d%02d%02d%02d%02d%02d' % (
mtime[0],
mtime[1],
mtime[2],
mtime[3],
mtime[4],
mtime[5]
)
)
def mdtm_completion(self, response):
status = response.getStatus()
if status == 200:
mtime = response._marshalledBody()[stat.ST_MTIME]
mtime = time.gmtime(mtime)
self.respond('213 %4d%02d%02d%02d%02d%02d' % (
mtime[0],
mtime[1],
mtime[2],
mtime[3],
mtime[4],
mtime[5]
))
elif status in (401, 403):
self.respond('530 Unauthorized.')
else:
self.respond('550 Error getting file modification time.')
def __getitem__(self,key):
""" db['key'] reading """
fil = self.root / key
try:
mtime = (fil.stat()[stat.ST_MTIME])
except OSError:
raise KeyError(key)
if fil in self.cache and mtime == self.cache[fil][1]:
return self.cache[fil][0]
try:
# The cached item has expired, need to read
with fil.open("rb") as f:
obj = pickle.loads(f.read())
except:
raise KeyError(key)
self.cache[fil] = (obj,mtime)
return obj
def _check(self, uri, template):
if template.filename is None:
return template
try:
template_stat = os.stat(template.filename)
if template.module._modified_time < \
template_stat[stat.ST_MTIME]:
self._collection.pop(uri, None)
return self._load(template.filename, uri)
else:
return template
except OSError:
self._collection.pop(uri, None)
raise exceptions.TemplateLookupException(
"Cant locate template for uri %r" % uri)
def _compile_from_file(self, path, filename):
if path is not None:
util.verify_directory(os.path.dirname(path))
filemtime = os.stat(filename)[stat.ST_MTIME]
if not os.path.exists(path) or \
os.stat(path)[stat.ST_MTIME] < filemtime:
data = util.read_file(filename)
_compile_module_file(
self,
data,
filename,
path,
self.module_writer)
module = compat.load_module(self.module_id, path)
del sys.modules[self.module_id]
if module._magic_number != codegen.MAGIC_NUMBER:
data = util.read_file(filename)
_compile_module_file(
self,
data,
filename,
path,
self.module_writer)
module = compat.load_module(self.module_id, path)
del sys.modules[self.module_id]
ModuleInfo(module, path, self, filename, None, None)
else:
# template filename and no module directory, compile code
# in memory
data = util.read_file(filename)
code, module = _compile_text(
self,
data,
filename)
self._source = None
self._code = code
ModuleInfo(module, None, self, filename, code, None)
return module
def get_modified_time(self):
"""Returns the time that ``self.absolute_path`` was last modified.
May be overridden in subclasses. Should return a `~datetime.datetime`
object or None.
.. versionadded:: 3.1
"""
stat_result = self._stat()
modified = datetime.datetime.utcfromtimestamp(
stat_result[stat.ST_MTIME])
return modified
def get_modified_time(self):
"""Returns the time that ``self.absolute_path`` was last modified.
May be overridden in subclasses. Should return a `~datetime.datetime`
object or None.
.. versionadded:: 3.1
"""
stat_result = self._stat()
modified = datetime.datetime.utcfromtimestamp(
stat_result[stat.ST_MTIME])
return modified
def get_modified_time(self):
"""Returns the time that ``self.absolute_path`` was last modified.
May be overridden in subclasses. Should return a `~datetime.datetime`
object or None.
.. versionadded:: 3.1
"""
stat_result = self._stat()
modified = datetime.datetime.utcfromtimestamp(
stat_result[stat.ST_MTIME])
return modified
def getmtime(self):
st = self.statinfo
if not st:
self.restat()
st = self.statinfo
return st[ST_MTIME]
def lookupTemplate(self, request):
"""
Use acquisition to look up the template named by self.templateFile,
located anywhere above this object in the heirarchy, and use it
as the template. The first time the template is used it is cached
for speed.
"""
if self.template:
return microdom.parseString(self.template)
if not self.templateDirectory:
mod = sys.modules[self.__module__]
if hasattr(mod, '__file__'):
self.templateDirectory = os.path.split(mod.__file__)[0]
# First see if templateDirectory + templateFile is a file
templatePath = os.path.join(self.templateDirectory, self.templateFile)
# Check to see if there is an already compiled copy of it
templateName = os.path.splitext(self.templateFile)[0]
compiledTemplateName = '.' + templateName + '.pxp'
compiledTemplatePath = os.path.join(self.templateDirectory, compiledTemplateName)
# No? Compile and save it
if (not os.path.exists(compiledTemplatePath) or
os.stat(compiledTemplatePath)[stat.ST_MTIME] < os.stat(templatePath)[stat.ST_MTIME]):
compiledTemplate = microdom.parse(templatePath)
pickle.dump(compiledTemplate, open(compiledTemplatePath, 'wb'), 1)
else:
compiledTemplate = pickle.load(open(compiledTemplatePath, "rb"))
return compiledTemplate
