ForgePatch/update_patches.py

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import os
import sys
import fnmatch
import shlex
import difflib
import time
def cmdsplit(args):
if os.sep == '\\':
args = args.replace('\\', '\\\\')
return shlex.split(args)
def cleanDirs(path):
if not os.path.isdir(path):
return
files = os.listdir(path)
if len(files):
for f in files:
fullpath = os.path.join(path, f)
if os.path.isdir(fullpath):
cleanDirs(fullpath)
files = os.listdir(path)
if len(files) == 0:
os.rmdir(path)
def main():
print("Creating patches")
mcp = os.path.normpath(sys.argv[1])
forge_dir = os.path.normpath(sys.argv[2])
patchd = os.path.normpath(os.path.join(forge_dir, 'patches'))
base = os.path.normpath(os.path.join(mcp, 'src_base'))
work = os.path.normpath(os.path.join(mcp, 'src_work'))
for path, _, filelist in os.walk(work, followlinks=True):
for cur_file in fnmatch.filter(filelist, '*.java'):
file_base = os.path.normpath(os.path.join(base, path[len(work)+1:], cur_file)).replace(os.path.sep, '/')
file_work = os.path.normpath(os.path.join(work, path[len(work)+1:], cur_file)).replace(os.path.sep, '/')
fromlines = open(file_base, 'U').readlines()
tolines = open(file_work, 'U').readlines()
patch = ''.join(difflib.unified_diff(fromlines, tolines, '../' + file_base[len(mcp)+1:], '../' + file_work[len(mcp)+1:], '', '', n=3))
patch_dir = os.path.join(patchd, path[len(work)+1:])
patch_file = os.path.join(patch_dir, cur_file + '.patch')
if len(patch) > 0:
print patch_file[len(patchd)+1:]
patch = patch.replace('\r\n', '\n')
if not os.path.exists(patch_dir):
os.makedirs(patch_dir)
with open(patch_file, 'wb') as fh:
fh.write(patch)
else:
if os.path.isfile(patch_file):
print("Deleting empty patch: %s"%(patch_file))
os.remove(patch_file)
cleanDirs(patchd)
if __name__ == '__main__':
main()