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rename-textures.py
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rename-textures.py
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#!/usr/bin/python
# rename-textures.py
# --------------------------------------------------------------------------
#
# 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,
# --------------------------------------------------------------------------
# rename (PNG-)texture-filenames inside an .ac file
# and also creates .png files with the new names
# the result will be in the output folder
# this script was not tested on any other OS than Linux
# non-png textures like .rgb .dds will be ignored.
import sys, getopt, re
import fileinput, subprocess
helptext = 'rename-textures.py -i <inputfile> '
def read_ac(ac_file):
l = [] # list of old png filenames
n = [] # list of new png filenames, only used for debug output
subprocess.call(["mkdir", "output"])
with open(ac_file,"r") as fp: # collect all old png-filenames, avoiding duplicates
index = 0
for line in fp:
#print line
col = line.find("texture")
if col == 0:
#print "FOUND", line[8:]
texname = line[8:].rstrip('"\r\n')
texname = texname.lstrip('"')
if texname in l:
pass
else:
if index == 0:
newname = ac_file.rstrip('.ac') + ".png"
else:
newname = ac_file.rstrip('.ac') + "_" + str(index) + ".png"
extension = texname[-4:]
if extension in [".png" ,".PNG"]:
l.append(texname)
#print texname , newname
# I use cp and not ml because many models might use the same texture file
newpath = "output/" + newname
subprocess.call(["cp", texname, newpath]) #rename the png file on the harddisk
# todo: call convert to scale to a factor of 2
n.append(newname)
index = index +1
else:
print "ERROR: not a png:" , texname
#exit(1)
for i in range(0, len(n)):
print l[i],"-> output/"+ n[i]
index = 0
# modify the .ac file inplace, write the original version to NAME.ac.bak
# no "print" for debugging allowed in this loop
# because stdout is written to the .ac
for line in fileinput.input(files=(ac_file),inplace=1, backup='.bak'):
col = line.find("texture")
if col == 0: # a texture line is found
texname = line[8:].rstrip('"\r\n')
texname = texname.lstrip('"')
index = 0
for name in l:
if name == texname:
if index == 0:
newname = ac_file.rstrip('.ac') + ".png"
else:
newname = ac_file.rstrip('.ac') + "_" + str(index) + ".png"
if (name != newname):
#debug = texname, name, newname + "\n"
#print (debug)
line = re.sub(name,newname, line) # replace the filename in the .ac file
index = index +1
sys.stdout.write(line)
subprocess.call(["cp", ac_file, "output"])
def main(argv):
model = ""
ac_file = "terminal-A-B.ac"
try:
opts, args = getopt.getopt(argv,"hi:m:e:")
except getopt.GetoptError:
print helptext
sys.exit(2)
for opt, arg in opts:
if opt == '-h':
print helptext
sys.exit()
elif opt == "-i":
ac_file = arg
print 'Input file is ', ac_file
#print 'Number of arguments:', len(sys.argv), 'arguments.'
#print 'Argument List:', str(sys.argv)
read_ac(ac_file)
if __name__ == "__main__":
main(sys.argv[1:])