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"""
miscellaneous functions
"""
# Copyright (c) 2000 LOGILAB S.A. (Paris, FRANCE).
# http://www.logilab.fr/ -- mailto:contact@logilab.fr
#
# This program is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free Software
# Foundation; either version 2 of the License, or (at your option) any later
# version.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, write to the Free Software Foundation, Inc.,
# 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
__revision__ = '$Id: misc.py,v 1.10 2003/10/02 10:07:49 syt Exp $'
##### interface ###
TRUE = 1
FALSE = 0
def process_dirs(dir1, dir2, recursive):
"""
function which return common, added, deleted file from dir1 to dir2
and remove initial directory from paths
"""
dir1 = normalize_dir(dir1)
dir2 = normalize_dir(dir2)
common, deleted, added = _process_dirs(dir1, dir2, recursive)
# remove prefix
deleted[0] = map(_remove_prefix(len(dir1)), deleted[0])
deleted[1] = map(_remove_prefix(len(dir1)), deleted[1])
added[0] = map(_remove_prefix(len(dir2)), added[0])
added[1] = map(_remove_prefix(len(dir2)), added[1])
common[0] = map(_remove_prefix(len(dir1)), common[0])
common[1] = map(_remove_prefix(len(dir1)), common[1])
return common, deleted, added
def divide_files(dir):
""" return a list with subdir of dir and another one with files """
import os
dirs=[]
regs=[]
#os.path.normpath(dir)
for filename in os.listdir(dir):
if os.path.isfile(os.path.join(dir, filename)):
regs.append(filename)
elif os.path.isdir(os.path.join(dir, filename)):
dirs.append(filename)
return dirs, regs
def extract(list1, list2):
""" extract common, added, deleted item from list1 to list2 """
common, deleted, added = [],[],[]
for item in list1:
if item in list2:
common.append(item)
list2.remove(item)
else:
deleted.append(item)
for item in list2:
if not item in list1:
added.append(item)
return common, deleted, added
def union(list1, list2):
""" return list1 union list2 """
tmp = {}
for i in list1:
tmp[i]=1
for i in list2:
tmp[i]=1
return tmp.keys()
def intersection(list1, list2):
""" return common items in list1 and list2 """
tmp, l = {}, []
for i in list1:
tmp[i]=1
for i in list2:
if tmp.has_key(i):
l.append(i)
return l
def init_matrix(nbrows, nbcols, default_value):
"""
return a 2d matrix list2d[nbrows][nbcols] initialised with
default_value (carefull for side effect with references...)
"""
list2d = []
for i in range(nbrows):
tmpl = []
for j in range(nbcols):
tmpl.append(default_value)
list2d.append(tmpl)
return list2d
def in_ref(list, item):
""" return true if list contains a reference on item """
for it in list:
if it is item:
return TRUE
return FALSE
def index_ref(list, item):
"""
return the index of item in list by reference comparison
raise Exception if not found
"""
index = 0
for it in list:
if it is item:
return index
index += 1
raise Exception('No item '+item)
def list_print (list, s1='', s2=''):
for item in list:
if item:
print '-'*80
print s1, item, s2
def append_list(list, a_list):
""" append a_list items to list """
for item in a_list:
list.append(item)
##### private ###
from os import sep
def normalize_dir(directory):
"""remove trailing path separator from the directory name
"""
while directory[-1] == sep:
directory = directory[:-1]
return directory
def _process_dirs(dir1, dir2, recursive):
"""
function which return common, added, deleted file from dir1 to dir2
if recursive, enter in subdirectory
"""
#/!\ sym links /!\#
# extract common files and directory
d_list1, f_list1 = divide_files(dir1)
d_list2, f_list2 = divide_files(dir2)
common, deleted, added = [[],[]], [[],[]], [[],[]]
common[0], deleted[0], added[0] = extract(f_list1, f_list2)
common[1], deleted[1], added[1] = extract(d_list1, d_list2)
# add prefix
deleted[0] = map(_add_prefix(dir1), deleted[0])
deleted[1] = map(_add_prefix(dir1), deleted[1])
added[0] = map(_add_prefix(dir2), added[0])
added[1] = map(_add_prefix(dir2), added[1])
common[0] = map(_add_prefix(dir1), common[0])
if recursive:
import os
# for all common subdirs
for dir in common[1]:
if dir == 'CVS':
continue
# recursion
comm, dele, adde = _process_dirs(os.path.join(dir1, dir),
os.path.join(dir2, dir),
recursive)
# add subdir items
append_list(deleted[0], dele[0]); append_list(deleted[1], dele[1])
append_list(added[0], adde[0]); append_list(added[1], adde[1])
append_list(common[0], comm[0]);
return common, deleted, added
def _remove_prefix(prfx_size):
""" return a function to add remove with map() """
return lambda s, len=prfx_size: s[len+1:]
def _add_prefix(prefix):
""" return a function to add prefix with map() """
import os
return lambda s, prfx=prefix,join=os.path.join: join(prfx, s)
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