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ninoborges |
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""" pyrobocopy.py -
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Version: 1.0
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Report the difference in content
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of two directories, synchronize or
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update a directory from another, taking
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into account time-stamps of files etc.
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By Anand B Pillai
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(This program is inspired by the windows
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'Robocopy' program.)
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Mod Nov 11 Rewrote to use the filecmp module.
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"""
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import os, stat
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import time
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import shutil
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import filecmp
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def usage():
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return """
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Pyrobocopy: Command line directory diff, synchronization, update & copy
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Author: Anand Pillai
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Usage: %s <sourcedir> <targetdir> Options
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Main Options:\n
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\t-d --diff - Only report difference between sourcedir and targetdir
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\t-s, --synchronize - Synchronize content between sourcedir and targetdir
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\t-u, --update - Update existing content between sourcedir and targetdir
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Additional Options:\n
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\t-p, --purge - Purge files when synchronizing (does not purge by default).
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\t-f, --force - Force copying of files, by trying to change file permissions.
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\t-n, --nodirection - Update files in source directory from target
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\t directory (only updates target from source by default).
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\t-c, --create - Create target directory if it does not exist (By default,
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\t target directory should exist.)
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\t-m, --modtime - Only compare file's modification times for an update (By default,
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\t compares source file's creation time also).
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"""
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class PyRobocopier:
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""" An advanced directory synchronization, updation
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and file copying class """
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prog_name = "pyrobocopy.py"
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def __init__(self):
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self.__dir1 = ''
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self.__dir2 = ''
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self.__dcmp = None
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self.__copyfiles = True
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self.__forcecopy = False
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self.__copydirection = 0
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self.__updatefiles = True
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self.__creatdirs = True
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self.__purge =False
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self.__maketarget =False
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self.__modtimeonly =False
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self.__mainfunc = None
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# stat vars
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self.__numdirs =0
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self.__numfiles =0
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self.__numdelfiles =0
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self.__numdeldirs =0
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self.__numnewdirs =0
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self.__numupdates =0
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self.__starttime = 0.0
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self.__endtime = 0.0
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# failure stat vars
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self.__numcopyfld =0
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self.__numupdsfld =0
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self.__numdirsfld =0
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self.__numdelffld =0
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self.__numdeldfld =0
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def parse_args(self, arguments):
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""" Parse arguments """
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import getopt
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shortargs = "supncm"
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longargs = ["synchronize=", "update=", "purge=", "nodirection=", "create=", "modtime="]
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try:
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optlist, args = getopt.getopt( arguments, shortargs, longargs )
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except getopt.GetoptError, e:
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print e
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return None
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allargs = []
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if len(optlist):
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allargs = [x[0] for x in optlist]
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allargs.extend( args )
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self.__setargs( allargs )
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def __setargs(self, argslist):
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""" Sets internal variables using arguments """
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for option in argslist:
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if option.lower() in ('-s', '--synchronize'):
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self.__mainfunc = self.synchronize
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elif option.lower() in ('-u', '--update'):
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self.__mainfunc = self.update
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elif option.lower() in ('-d', '--diff'):
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self.__mainfunc = self.dirdiff
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elif option.lower() in ('-p', '--purge'):
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self.__purge = True
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elif option.lower() in ('-n', '--nodirection'):
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self.__copydirection = 2
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elif option.lower() in ('-f', '--force'):
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self.__forcecopy = True
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elif option.lower() in ('-c', '--create'):
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self.__maketarget = True
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elif option.lower() in ('-m', '--modtime'):
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self.__modtimeonly = True
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else:
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if self.__dir1=='':
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self.__dir1 = option
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elif self.__dir2=='':
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self.__dir2 = option
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if self.__dir1=='' or self.__dir2=='':
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sys.exit("Argument Error: Directory arguments not given!")
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if not os.path.isdir(self.__dir1):
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sys.exit("Argument Error: Source directory does not exist!")
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if not self.__maketarget and not os.path.isdir(self.__dir2):
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sys.exit("Argument Error: Target directory %s does not exist! (Try the -c option)." % self.__dir2)
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if self.__mainfunc is None:
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sys.exit("Argument Error: Specify an action (Diff, Synchronize or Update) ")
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self.__dcmp = filecmp.dircmp(self.__dir1, self.__dir2)
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def do_work(self):
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""" Do work """
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self.__starttime = time.time()
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if not os.path.isdir(self.__dir2):
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if self.__maketarget:
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print 'Creating directory', self.__dir2
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try:
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os.makedirs(self.__dir2)
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except Exception, e:
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print e
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return None
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# All right!
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self.__mainfunc()
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self.__endtime = time.time()
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def __dowork(self, dir1, dir2, copyfunc = None, updatefunc = None):
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""" Private attribute for doing work """
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print 'Source directory: ', dir1, ':'
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self.__numdirs += 1
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self.__dcmp = filecmp.dircmp(dir1, dir2)
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# Files & directories only in target directory
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if self.__purge:
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for f2 in self.__dcmp.right_only:
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fullf2 = os.path.join(dir2, f2)
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print 'Deleting ',fullf2
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try:
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if os.path.isfile(fullf2):
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try:
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os.remove(fullf2)
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self.__numdelfiles += 1
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except OSError, e:
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print e
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self.__numdelffld += 1
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elif os.path.isdir(fullf2):
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try:
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shutil.rmtree( fullf2, True )
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self.__numdeldirs += 1
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except shutil.Error, e:
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print e
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self.__numdeldfld += 1
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except Exception, e: # of any use ?
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print e
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continue
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# Files & directories only in source directory
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for f1 in self.__dcmp.left_only:
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try:
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st = os.stat(os.path.join(dir1, f1))
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except os.error:
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continue
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if stat.S_ISREG(st.st_mode):
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if copyfunc: copyfunc(f1, dir1, dir2)
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elif stat.S_ISDIR(st.st_mode):
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fulld1 = os.path.join(dir1, f1)
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fulld2 = os.path.join(dir2, f1)
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if self.__creatdirs:
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try:
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# Copy tree
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print 'Copying tree', fulld2
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shutil.copytree(fulld1, fulld2)
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self.__numnewdirs += 1
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print 'Done.'
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except shutil.Error, e:
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print e
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self.__numdirsfld += 1
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# jump to next file/dir in loop since this op failed
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continue
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# Call tail recursive
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# if os.path.exists(fulld2):
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# self.__dowork(fulld1, fulld2, copyfunc, updatefunc)
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# common files/directories
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for f1 in self.__dcmp.common:
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try:
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st = os.stat(os.path.join(dir1, f1))
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except os.error:
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continue
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if stat.S_ISREG(st.st_mode):
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if updatefunc: updatefunc(f1, dir1, dir2)
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elif stat.S_ISDIR(st.st_mode):
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fulld1 = os.path.join(dir1, f1)
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fulld2 = os.path.join(dir2, f1)
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# Call tail recursive
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self.__dowork(fulld1, fulld2, copyfunc, updatefunc)
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def __copy(self, filename, dir1, dir2):
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""" Private function for copying a file """
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# NOTE: dir1 is source & dir2 is target
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if self.__copyfiles:
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print 'Copying file', filename, dir1, dir2
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try:
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if self.__copydirection== 0 or self.__copydirection == 2: # source to target
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if not os.path.exists(dir2):
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if self.__forcecopy:
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os.chmod(os.path.dirname(dir2), 0777)
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try:
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os.makedirs(dir1)
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except OSError, e:
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print e
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self.__numdirsfld += 1
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if self.__forcecopy:
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os.chmod(dir2, 0777)
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sourcefile = os.path.join(dir1, filename)
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try:
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shutil.copy(sourcefile, dir2)
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self.__numfiles += 1
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except (IOError, OSError), e:
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print e
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self.__numcopyfld += 1
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elif self.__copydirection==1 or self.__copydirection == 2: # target to source
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if not os.path.exists(dir1):
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if self.__forcecopy:
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os.chmod(os.path.dirname(dir1), 0777)
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try:
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os.makedirs(dir1)
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except OSError, e:
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print e
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self.__numdirsfld += 1
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| 288 |
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targetfile = os.path.abspath(os.path.join(dir1, filename))
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if self.__forcecopy:
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os.chmod(dir1, 0777)
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| 291 |
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| 292 |
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sourcefile = os.path.join(dir2, filename)
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| 294 |
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try:
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| 295 |
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shutil.copy(sourcefile, dir1)
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self.__numfiles += 1
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except (IOError, OSError), e:
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print e
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| 299 |
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self.__numcopyfld += 1
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| 300 |
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| 301 |
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except Exception, e:
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| 302 |
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print 'Error copying file', filename, e
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| 303 |
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| 304 |
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def __cmptimestamps(self, filest1, filest2):
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""" Compare time stamps of two files and return True
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| 306 |
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if file1 (source) is more recent than file2 (target) """
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| 307 |
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| 308 |
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return ((filest1.st_mtime > filest2.st_mtime) or \
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| 309 |
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(not self.__modtimeonly and (filest1.st_ctime > filest2.st_mtime)))
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| 310 |
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| 311 |
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def __update(self, filename, dir1, dir2):
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| 312 |
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""" Private function for updating a file based on
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| 313 |
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last time stamp of modification """
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| 314 |
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|
| 315 |
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print 'Updating file', filename
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| 316 |
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| 317 |
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# NOTE: dir1 is source & dir2 is target
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| 318 |
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if self.__updatefiles:
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| 319 |
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| 320 |
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file1 = os.path.join(dir1, filename)
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| 321 |
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file2 = os.path.join(dir2, filename)
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| 322 |
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| 323 |
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try:
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| 324 |
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st1 = os.stat(file1)
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| 325 |
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st2 = os.stat(file2)
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| 326 |
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except os.error:
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| 327 |
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return -1
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| 328 |
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| 329 |
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# Update will update in both directions depending
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| 330 |
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# on the timestamp of the file & copy-direction.
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| 331 |
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| 332 |
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if self.__copydirection==0 or self.__copydirection == 2:
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| 334 |
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# Update file if file's modification time is older than
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| 335 |
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# source file's modification time, or creation time. Sometimes
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| 336 |
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# it so happens that a file's creation time is newer than it's
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| 337 |
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# modification time! (Seen this on windows)
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| 338 |
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if self.__cmptimestamps( st1, st2 ):
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| 339 |
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print 'Updating file ', file2 # source to target
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| 340 |
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try:
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| 341 |
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if self.__forcecopy:
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| 342 |
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os.chmod(file2, 0666)
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| 343 |
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|
| 344 |
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try:
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| 345 |
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shutil.copy(file1, file2)
|
| 346 |
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self.__numupdates += 1
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| 347 |
|
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return 0
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| 348 |
|
|
except (IOError, OSError), e:
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| 349 |
|
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print e
|
| 350 |
|
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self.__numupdsfld += 1
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| 351 |
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return -1
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| 352 |
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|
| 353 |
|
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except Exception, e:
|
| 354 |
|
|
print e
|
| 355 |
|
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return -1
|
| 356 |
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|
| 357 |
|
|
elif self.__copydirection==1 or self.__copydirection == 2:
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| 358 |
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|
| 359 |
|
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# Update file if file's modification time is older than
|
| 360 |
|
|
# source file's modification time, or creation time. Sometimes
|
| 361 |
|
|
# it so happens that a file's creation time is newer than it's
|
| 362 |
|
|
# modification time! (Seen this on windows)
|
| 363 |
|
|
if self.__cmptimestamps( st2, st1 ):
|
| 364 |
|
|
print 'Updating file ', file1 # target to source
|
| 365 |
|
|
try:
|
| 366 |
|
|
if self.__forcecopy:
|
| 367 |
|
|
os.chmod(file1, 0666)
|
| 368 |
|
|
|
| 369 |
|
|
try:
|
| 370 |
|
|
shutil.copy(file2, file1)
|
| 371 |
|
|
self.__numupdates += 1
|
| 372 |
|
|
return 0
|
| 373 |
|
|
except (IOError, OSError), e:
|
| 374 |
|
|
print e
|
| 375 |
|
|
self.__numupdsfld += 1
|
| 376 |
|
|
return -1
|
| 377 |
|
|
|
| 378 |
|
|
except Exception, e:
|
| 379 |
|
|
print e
|
| 380 |
|
|
return -1
|
| 381 |
|
|
|
| 382 |
|
|
return -1
|
| 383 |
|
|
|
| 384 |
|
|
def __dirdiffandcopy(self, dir1, dir2):
|
| 385 |
|
|
""" Private function which does directory diff & copy """
|
| 386 |
|
|
self.__dowork(dir1, dir2, self.__copy)
|
| 387 |
|
|
|
| 388 |
|
|
def __dirdiffandupdate(self, dir1, dir2):
|
| 389 |
|
|
""" Private function which does directory diff & update """
|
| 390 |
|
|
self.__dowork(dir1, dir2, None, self.__update)
|
| 391 |
|
|
|
| 392 |
|
|
def __dirdiffcopyandupdate(self, dir1, dir2):
|
| 393 |
|
|
""" Private function which does directory diff, copy and update (synchro) """
|
| 394 |
|
|
self.__dowork(dir1, dir2, self.__copy, self.__update)
|
| 395 |
|
|
|
| 396 |
|
|
def __dirdiff(self):
|
| 397 |
|
|
""" Private function which only does directory diff """
|
| 398 |
|
|
|
| 399 |
|
|
if self.__dcmp.left_only:
|
| 400 |
|
|
print 'Only in', self.__dir1
|
| 401 |
|
|
for x in self.__dcmp.left_only:
|
| 402 |
|
|
print '>>', x
|
| 403 |
|
|
|
| 404 |
|
|
if self.__dcmp.right_only:
|
| 405 |
|
|
print 'Only in', self.__dir2
|
| 406 |
|
|
for x in self.__dcmp.right_only:
|
| 407 |
|
|
print '<<', x
|
| 408 |
|
|
|
| 409 |
|
|
if self.__dcmp.common:
|
| 410 |
|
|
print 'Common to', self.__dir1,' and ',self.__dir2
|
| 411 |
|
|
print
|
| 412 |
|
|
for x in self.__dcmp.common:
|
| 413 |
|
|
print '--', x
|
| 414 |
|
|
else:
|
| 415 |
|
|
print 'No common files or sub-directories!'
|
| 416 |
|
|
|
| 417 |
|
|
def synchronize(self):
|
| 418 |
|
|
""" Synchronize will try to synchronize two directories w.r.t
|
| 419 |
|
|
each other's contents, copying files if necessary from source
|
| 420 |
|
|
to target, and creating directories if necessary. If the optional
|
| 421 |
|
|
argument purge is True, directories in target (dir2) that are
|
| 422 |
|
|
not present in the source (dir1) will be deleted . Synchronization
|
| 423 |
|
|
is done in the direction of source to target """
|
| 424 |
|
|
|
| 425 |
|
|
self.__copyfiles = True
|
| 426 |
|
|
self.__updatefiles = True
|
| 427 |
|
|
self.__creatdirs = True
|
| 428 |
|
|
self.__copydirection = 0
|
| 429 |
|
|
|
| 430 |
|
|
print 'Synchronizing directory', self.__dir2, 'with', self.__dir1 ,'\n'
|
| 431 |
|
|
self.__dirdiffcopyandupdate(self.__dir1, self.__dir2)
|
| 432 |
|
|
|
| 433 |
|
|
def update(self):
|
| 434 |
|
|
""" Update will try to update the target directory
|
| 435 |
|
|
w.r.t source directory. Only files that are common
|
| 436 |
|
|
to both directories will be updated, no new files
|
| 437 |
|
|
or directories are created """
|
| 438 |
|
|
|
| 439 |
|
|
self.__copyfiles = False
|
| 440 |
|
|
self.__updatefiles = True
|
| 441 |
|
|
self.__purge = False
|
| 442 |
|
|
self.__creatdirs = False
|
| 443 |
|
|
|
| 444 |
|
|
print 'Updating directory', self.__dir2, 'from', self.__dir1 , '\n'
|
| 445 |
|
|
self.__dirdiffandupdate(self.__dir1, self.__dir2)
|
| 446 |
|
|
|
| 447 |
|
|
def dirdiff(self):
|
| 448 |
|
|
""" Only report difference in content between two
|
| 449 |
|
|
directories """
|
| 450 |
|
|
|
| 451 |
|
|
self.__copyfiles = False
|
| 452 |
|
|
self.__updatefiles = False
|
| 453 |
|
|
self.__purge = False
|
| 454 |
|
|
self.__creatdirs = False
|
| 455 |
|
|
self.__updatefiles = False
|
| 456 |
|
|
|
| 457 |
|
|
print 'Difference of directory ', self.__dir2, 'from', self.__dir1 , '\n'
|
| 458 |
|
|
self.__dirdiff()
|
| 459 |
|
|
|
| 460 |
|
|
def report(self):
|
| 461 |
|
|
""" Print report of work at the end """
|
| 462 |
|
|
|
| 463 |
|
|
# We need only the first 4 significant digits
|
| 464 |
|
|
tt = (str(self.__endtime - self.__starttime))[:4]
|
| 465 |
|
|
|
| 466 |
|
|
print '\nPython robocopier finished in',tt, 'seconds.'
|
| 467 |
|
|
print self.__numdirs, 'directories parsed,',self.__numfiles, 'files copied.'
|
| 468 |
|
|
if self.__numdelfiles:
|
| 469 |
|
|
print self.__numdelfiles, 'files were purged.'
|
| 470 |
|
|
if self.__numdeldirs:
|
| 471 |
|
|
print self.__numdeldirs, 'directories were purged.'
|
| 472 |
|
|
if self.__numnewdirs:
|
| 473 |
|
|
print self.__numnewdirs, 'directories were created.'
|
| 474 |
|
|
if self.__numupdates:
|
| 475 |
|
|
print self.__numupdates, 'files were updated by timestamp.'
|
| 476 |
|
|
|
| 477 |
|
|
# Failure stats
|
| 478 |
|
|
print '\n'
|
| 479 |
|
|
if self.__numcopyfld:
|
| 480 |
|
|
print self.__numcopyfld, 'files could not be copied.'
|
| 481 |
|
|
if self.__numdirsfld:
|
| 482 |
|
|
print self.__numdirsfld, 'directories could not be created.'
|
| 483 |
|
|
if self.__numupdsfld:
|
| 484 |
|
|
print self.__numupdsfld, 'files could not be updated.'
|
| 485 |
|
|
if self.__numdeldfld:
|
| 486 |
|
|
print self.__numdeldfld, 'directories could not be purged.'
|
| 487 |
|
|
if self.__numdelffld:
|
| 488 |
|
|
print self.__numdelffld, 'files could not be purged.'
|
| 489 |
|
|
|
| 490 |
|
|
if __name__=="__main__":
|
| 491 |
|
|
import sys
|
| 492 |
|
|
|
| 493 |
|
|
if len(sys.argv)<2:
|
| 494 |
|
|
sys.exit( usage() % PyRobocopier.prog_name )
|
| 495 |
|
|
|
| 496 |
|
|
copier = PyRobocopier()
|
| 497 |
|
|
copier.parse_args(sys.argv[1:])
|
| 498 |
|
|
copier.do_work()
|
| 499 |
|
|
|
| 500 |
|
|
# print report at the end
|
| 501 |
|
|
copier.report()
|
