release note: DPDEF144648 - Raptor failed to build tools_deb objects under Windows XP
# The MIT License
# Copyright (c) 2003 Doug Tolton
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
#
""" unzip.py
Version: 1.1
Extract a zip file to the directory provided
It first creates the directory structure to house the files
then it extracts the files to it.
Sample usage:
Windows command line
unzip.py -p 10 -z c:\testfile.zip -o c:\testoutput
Linux command line
unzip.py -p 10 -z /tmp/testfile.zip -o /tmp/testoutput
Python class:
import unzip
un = unzip.unzip()
un.extract(r'c:\testfile.zip', r'c:\testoutput') # Windows
un.extract(r'/tmp/testfile.zip', '/tmp/testoutput') # Linux
By Doug Tolton
Taken from http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/252508
Updated by Daniel Jacobs to be OS-neutral and more stable.
"""
import sys
import zipfile
import os
import os.path
import getopt
import errno
class unzip:
def __init__(self, verbose = False, percent = 10):
self.verbose = verbose
self.percent = percent
def extract(self, file, dir):
""" Extract all the files in the zip file, "file" to the directory "dir" with full path names."""
if not dir.endswith(':') and not os.path.exists(dir):
self._makedir(dir)
zf = zipfile.ZipFile(file)
# create directory structure to house files
self._createstructure(file, dir)
num_files = len(zf.namelist())
percent = self.percent
divisions = 100 / percent
perc = int(num_files / divisions)
# extract files to directory structure
for i, name in enumerate(zf.namelist()):
if self.verbose == True:
print "Extracting %s" % name
elif perc > 0 and (i % perc) == 0 and i > 0:
complete = int (i / perc) * percent
print "%s%% complete" % complete
if not name.endswith('/'):
# Normalise the path so that it is correct for the current OS
localdirname = os.path.normpath(os.path.join(dir, os.path.dirname(name)))
# Ensure that the directory hierarchy that contains the files exists so that
# writing to the file is valid. Note: some zip tools omit directory information
# and this will cause problems when trying to write file to non-existent directories.
self._makedir(localdirname)
# Write the file
outfile = open(os.path.join(localdirname, os.path.basename(name)), 'wb')
outfile.write(zf.read(name))
outfile.flush()
outfile.close()
zf.close()
def _createstructure(self, file, dir):
self._makedirs(self._listdirs(file), dir)
def _makedirs(self, directories, basedir):
""" Create any directories that don't currently exist """
for dir in directories:
curdir = os.path.join(basedir, dir)
# Normalise path for current OS.
curdir = os.path.normpath(curdir)
self._makedir(curdir)
def _makedir(self, directory):
""" Create a directory "safely", catching the "file exists" exception if the
directory has been created by another process. Creates all parent directories
recursively as requied. """
if not os.path.exists(directory):
# In multi-threaded uses, it is possible that this directory
# has been made in the meantime. Catch this exception.
try:
os.makedirs(directory)
except OSError, aOSError:
# If the OSError is that the file exists then we are OK - this
# might occur in a multi-threaded or multi-process environment;
# otherwise re-raise the exception since it's something else bad.
if aOSError.errno != errno.EEXIST:
raise aOSError
def _listdirs(self, file):
""" Grabs all the directories in the zip structure
This is necessary to create the structure before trying
to extract the file to it. """
zf = zipfile.ZipFile(file)
dirs = []
for name in zf.namelist():
if name.endswith('/'):
if self.verbose == True:
print "Directory \"" + name + "\" will be made."
dirs.append(name)
zf.close()
return dirs
def usage():
print """usage: unzip.py -z <zipfile> -o <targetdir>
<zipfile> is the source zipfile to extract
<targetdir> is the target destination
-z zipfile to extract
-o target location
-p sets the percentage notification
-v sets the extraction to verbose (overrides -p)
long options also work:
--verbose
--percent=10
--zipfile=<zipfile>
--outdir=<targetdir>"""
def main():
shortargs = 'vhp:z:o:'
longargs = ['verbose', 'help', 'percent=', 'zipfile=', 'outdir=']
unzipper = unzip()
try:
opts, args = getopt.getopt(sys.argv[1:], shortargs, longargs)
except getopt.GetoptError:
usage()
sys.exit(2)
zipsource = ""
zipdest = ""
for o, a in opts:
if o in ("-v", "--verbose"):
unzipper.verbose = True
if o in ("-p", "--percent"):
if not unzipper.verbose == True:
unzipper.percent = int(a)
if o in ("-z", "--zipfile"):
zipsource = a
if o in ("-o", "--outdir"):
zipdest = a
if o in ("-h", "--help"):
usage()
sys.exit()
if zipsource == "" or zipdest == "":
usage()
sys.exit()
unzipper.extract(zipsource, zipdest)
if __name__ == '__main__': main()