Python File.touch方法代码示例

# 需要导入模块: from zim.fs import File [as 别名]
# 或者: from zim.fs.File import touch [as 别名]
	def runTest(self):
		from pprint import pprint

		from zim.fs import File
		file = File('./tests/data/TestTemplate.html')

		templ = Template(file)
		#~ pprint(templ.parts) # parser output

		output = []
		templ.process(output, {
			'title': 'THIS IS THE TITLE',
			'generator': {
				'name': 'ZIM VERSION',
			},
			'navigation': {
				'prev': None,
				'next': None,
			},
			'links': {},
			'pages': [
				{ # page
					'name': 'page',
					'heading': 'HEAD',
					'body': 'BODY',
					'properties': {
						'type': 'PAGE',
					},
					'backlinks': [
						{'name': 'LINK1'},
						{'name': 'LINK2'},
						{'name': 'LINK3'},
					],
					'attachments': [
						{'name': 'FILE1', 'basename': 'FILE1', 'size': '1k'},
						{'name': 'FILE2', 'basename': 'FILE2', 'size': '1k'},
					],
				},
			],
			'uri': ExpressionFunction(lambda l: "URL:%s" % l['name']),
			'anchor': ExpressionFunction(lambda l: "ANCHOR:%s" % l['name']),
		})
		#~ print ''.join(output)

		# TODO assert something

		### Test empty template OK as well
		dir = Dir(self.create_tmp_dir())
		file = dir.file('empty.html')

		self.assertRaises(FileNotFoundError, Template, file)

		file.touch()
		templ = Template(file)
		output = []
		templ.process(output, {})
		self.assertEqual(output, [])

# 需要导入模块: from zim.fs import File [as 别名]
# 或者: from zim.fs.File import touch [as 别名]
class ConfigFile(object):
	'''Container object for a config file

	Maps to a "base" file in the home folder, used to write new values,
	and one or more default files, e.g. in C{/usr/share/zim}, which
	are the fallback to get default values

	@ivar file: the underlying file object for the base config file
	in the home folder

	@note: this class implement similar API to the L{File} class but
	is explicitly not a sub-class of L{File} because config files should
	typically not be moved, renamed, etc. It just implements the reading
	and writing methods.
	'''

	def __init__(self, path, file=None):
		'''Constructor
		@param path: either basename as string or tuple with relative path,
		is resolved relative to the default config dir for zim.
		@param file: optional argument for some special case to
		override the base file in the home folder.
		'''
		if isinstance(path, basestring):
			path = (path,)
		self._path = tuple(path)
		if file:
			self.file = file
		else:
			self.file = File((XDG_CONFIG_HOME, 'zim') + self._path)

	def __repr__(self):
		return '<%s: %s>' % (self.__class__.__name__, self.file.path)

	def __eq__(self, other):
		return isinstance(other, ConfigFile) \
		and other._path == self._path \
		and other.file == self.file

	@property
	def basename(self):
		return self.file.basename

	def default_files(self):
		'''Generator that yields default config files (read-only) to
		use instead of the standard file when it is still empty.
		Typically only the first one is used.
		'''
		for dir in config_dirs():
			default = dir.file(self._path)
			if default.exists():
				yield default

	def touch(self):
		'''Ensure the custom file in the home folder exists. Either by
		copying a default config file, or touching an empty file.
		Intended to be called before trying to edit the file with an
		external editor.
		'''
		if not self.file.exists():
			for file in self.default_files():
				file.copyto(self.file)
				break
			else:
				self.file.touch() # create empty file

	def read(self, fail=False):
		'''Read the base file or first default file
		@param fail: if C{True} a L{FileNotFoundError} error is raised
		when neither the base file or a default file are found. If
		C{False} it will return C{''} for a non-existing file.
		@returns: file content as a string
		'''
		try:
			return self.file.read()
		except FileNotFoundError:
			for file in self.default_files():
				return file.read()
			else:
				if fail:
					raise
				else:
					return ''

	def readlines(self, fail=False):
		'''Read the base file or first default file
		@param fail: if C{True} a L{FileNotFoundError} error is raised
		when neither the base file or a default file are found. If
		C{False} it will return C{[]} for a non-existing file.
		@returns: file content as a list of lines
		'''
		try:
			return self.file.readlines()
		except FileNotFoundError:
			for file in self.default_files():
				return file.readlines()
			else:
				if fail:
					raise
				else:
#.........这里部分代码省略.........