/usr/lib/python2.7/dist-packages/apptools/io/file.py is in python-apptools 4.3.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 | #------------------------------------------------------------------------------
# Copyright (c) 2005, Enthought, Inc.
# All rights reserved.
#
# This software is provided without warranty under the terms of the BSD
# license included in enthought/LICENSE.txt and may be redistributed only
# under the conditions described in the aforementioned license. The license
# is also available online at http://www.enthought.com/licenses/BSD.txt
# Thanks for using Enthought open source!
#
# Author: Enthought, Inc.
# Description: <Enthought IO package component>
#------------------------------------------------------------------------------
""" A representation of files and folders in a file system. """
# Standard/built-in imports.
import mimetypes, os, shutil, stat
# Enthought library imports.
from traits.api import Bool, HasPrivateTraits, Instance, List, Property
from traits.api import Str
class File(HasPrivateTraits):
""" A representation of files and folders in a file system. """
#### 'File' interface #####################################################
# The absolute path name of this file/folder.
absolute_path = Property(Str)
# The folder's children (for files this is always None).
children = Property(List('File'))
# The file extension (for folders this is always the empty string).
#
# fixme: Currently the extension includes the '.' (ie. we have '.py' and
# not 'py'). This is because things like 'os.path.splitext' leave the '.'
# on, but I'm not sure that this is a good idea!
ext = Property(Str)
# Does the file/folder exist?
exists = Property(Bool)
# Is this an existing file?
is_file = Property(Bool)
# Is this an existing folder?
is_folder = Property(Bool)
# Is this a Python package (ie. a folder contaning an '__init__.py' file.
is_package = Property(Bool)
# Is the file/folder readonly?
is_readonly = Property(Bool)
# The MIME type of the file (for a folder this will always be
# 'context/unknown' (is that what it should be?)).
mime_type = Property(Str)
# The last component of the path without the extension.
name = Property(Str)
# The parent of this file/folder (None if it has no parent).
parent = Property(Instance('File'))
# The path name of this file/folder.
path = Str
# A URL reference to the file.
url = Property(Str)
###########################################################################
# 'object' interface.
###########################################################################
def __init__(self, path, **traits):
""" Creates a new representation of the specified path. """
super(File, self).__init__(path=path, **traits)
return
def __cmp__(self, other):
""" Comparison operators. """
if isinstance(other, File):
return cmp(self.path, other.path)
return 1
def __str__(self):
""" Returns an 'informal' string representation of the object. """
return 'File(%s)' % self.path
###########################################################################
# 'File' interface.
###########################################################################
#### Properties ###########################################################
def _get_absolute_path(self):
""" Returns the absolute path of this file/folder. """
return os.path.abspath(self.path)
def _get_children(self):
""" Returns the folder's children.
Returns None if the path does not exist or is not a folder.
"""
if self.is_folder:
children = []
for name in os.listdir(self.path):
children.append(File(os.path.join(self.path, name)))
else:
children = None
return children
def _get_exists(self):
""" Returns True if the file exists, otherwise False. """
return os.path.exists(self.path)
def _get_ext(self):
""" Returns the file extension. """
name, ext = os.path.splitext(self.path)
return ext
def _get_is_file(self):
""" Returns True if the path exists and is a file. """
return self.exists and os.path.isfile(self.path)
def _get_is_folder(self):
""" Returns True if the path exists and is a folder. """
return self.exists and os.path.isdir(self.path)
def _get_is_package(self):
""" Returns True if the path exists and is a Python package. """
return self.is_folder and '__init__.py' in os.listdir(self.path)
def _get_is_readonly(self):
""" Returns True if the file/folder is readonly, otherwise False. """
# If the File object is a folder, os.access cannot be used because it
# returns True for both read-only and writable folders on Windows
# systems.
if self.is_folder:
# Mask for the write-permission bits on the folder. If these bits
# are set to zero, the folder is read-only.
WRITE_MASK = 0x92
permissions = os.stat(self.path)[0]
if permissions & WRITE_MASK == 0:
readonly = True
else:
readonly = False
elif self.is_file:
readonly = not os.access(self.path, os.W_OK)
else:
readonly = False
return readonly
def _get_mime_type(self):
""" Returns the mime-type of this file/folder. """
mime_type, encoding = mimetypes.guess_type(self.path)
if mime_type is None:
mime_type = "content/unknown"
return mime_type
def _get_name(self):
""" Returns the last component of the path without the extension. """
basename = os.path.basename(self.path)
name, ext = os.path.splitext(basename)
return name
def _get_parent(self):
""" Returns the parent of this file/folder. """
return File(os.path.dirname(self.path))
def _get_url(self):
""" Returns the path as a URL. """
# Strip out the leading slash on POSIX systems.
return 'file:///%s' % self.absolute_path.lstrip('/')
#### Methods ##############################################################
def copy(self, destination):
""" Copies this file/folder. """
# Allow the destination to be a string.
if not isinstance(destination, File):
destination = File(destination)
if self.is_folder:
shutil.copytree(self.path, destination.path)
elif self.is_file:
shutil.copyfile(self.path, destination.path)
return
def create_file(self, contents=''):
""" Creates a file at this path. """
if self.exists:
raise ValueError("file %s already exists" % self.path)
f = file(self.path, 'w')
f.write(contents)
f.close()
return
def create_folder(self):
""" Creates a folder at this path.
All intermediate folders MUST already exist.
"""
if self.exists:
raise ValueError("folder %s already exists" % self.path)
os.mkdir(self.path)
return
def create_folders(self):
""" Creates a folder at this path.
This will attempt to create any missing intermediate folders.
"""
if self.exists:
raise ValueError("folder %s already exists" % self.path)
os.makedirs(self.path)
return
def create_package(self):
""" Creates a package at this path.
All intermediate folders/packages MUST already exist.
"""
if self.exists:
raise ValueError("package %s already exists" % self.path)
os.mkdir(self.path)
# Create the '__init__.py' file that actually turns the folder into a
# package!
init = File(os.path.join(self.path, '__init__.py'))
init.create_file()
return
def delete(self):
""" Deletes this file/folder.
Does nothing if the file/folder does not exist.
"""
if self.is_folder:
# Try to make sure that everything in the folder is writeable.
self.make_writeable()
# Delete it!
shutil.rmtree(self.path)
elif self.is_file:
# Try to make sure that the file is writeable.
self.make_writeable()
# Delete it!
os.remove(self.path)
return
def make_writeable(self):
""" Attempt to make the file/folder writeable. """
if self.is_folder:
# Try to make sure that everything in the folder is writeable
# (i.e., can be deleted!). This comes in especially handy when
# deleting '.svn' directories.
for path, dirnames, filenames in os.walk(self.path):
for name in dirnames + filenames:
filename = os.path.join(path, name)
if not os.access(filename, os.W_OK):
os.chmod(filename, stat.S_IWUSR)
elif self.is_file:
# Try to make sure that the file is writeable (i.e., can be
# deleted!).
if not os.access(self.path, os.W_OK):
os.chmod(self.path, stat.S_IWUSR)
return
def move(self, destination):
""" Moves this file/folder. """
# Allow the destination to be a string.
if not isinstance(destination, File):
destination = File(destination)
# Try to make sure that everything in the directory is writeable.
self.make_writeable()
# Move it!
shutil.move(self.path, destination.path)
return
#### EOF ######################################################################
|