Gecko [ oric.aiou.edu.pk ]

Name	Size	Permission
__pycache__	[ DIR ]	drwxr-xr-x
DistUpgradeApport.py	4.95 KB	-rw-r--r--
DistUpgradeAptCdrom.py	12.39 KB	-rw-r--r--
DistUpgradeCache.py	52.93 KB	-rw-r--r--
DistUpgradeConfigParser.py	3.75 KB	-rw-r--r--
DistUpgradeController.py	101.89 KB	-rw-r--r--
DistUpgradeFetcher.py	5.87 KB	-rw-r--r--
DistUpgradeFetcherCore.py	11.27 KB	-rw-r--r--
DistUpgradeFetcherKDE.py	9.72 KB	-rw-r--r--
DistUpgradeFetcherSelf.py	2.02 KB	-rw-r--r--
DistUpgradeGettext.py	2.97 KB	-rw-r--r--
DistUpgradeMain.py	9.1 KB	-rw-r--r--
DistUpgradePatcher.py	3.92 KB	-rw-r--r--
DistUpgradeQuirks.py	53.41 KB	-rw-r--r--
DistUpgradeVersion.py	21 B	-rw-r--r--
DistUpgradeView.py	16.43 KB	-rw-r--r--
DistUpgradeViewGtk3.py	33.85 KB	-rw-r--r--
DistUpgradeViewKDE.py	42.11 KB	-rw-r--r--
DistUpgradeViewNonInteractive....	13.54 KB	-rw-r--r--
DistUpgradeViewText.py	12.53 KB	-rw-r--r--
GtkProgress.py	3.93 KB	-rw-r--r--
MetaRelease.py	17.06 KB	-rw-r--r--
QUrlOpener.py	3.24 KB	-rw-r--r--
ReleaseNotesViewer.py	7.48 KB	-rw-r--r--
ReleaseNotesViewerWebkit.py	2.91 KB	-rw-r--r--
SimpleGtk3builderApp.py	2.01 KB	-rw-r--r--
SimpleGtkbuilderApp.py	1.99 KB	-rw-r--r--
__init__.py	0 B	-rw-r--r--
apt_btrfs_snapshot.py	9.64 KB	-rw-r--r--
apt_clone.py	32.81 KB	-rw-r--r--
dist-upgrade.py	129 B	-rw-r--r--
distro.py	23.15 KB	-rw-r--r--
telemetry.py	3.4 KB	-rw-r--r--
utils.py	17.92 KB	-rw-r--r--
xorg_fix_proprietary.py	3.99 KB	-rw-r--r--

Code Editor : DistUpgradePatcher.py

# DistUpgradeEdPatcher.py 
#  
#  Copyright (c) 2011 Canonical
#  
#  Author: Michael Vogt <michael.vogt@ubuntu.com>
# 
#  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

import hashlib
import re

class PatchError(Exception):
    """ Error during the patch process """
    pass

def patch(orig, edpatch, result_md5sum=None):
    """ python implementation of enough "ed" to apply ed-style
        patches. Note that this patches in memory so its *not*
        suitable for big files
    """

# we only have two states, waiting for command or reading data
    (STATE_EXPECT_COMMAND,
     STATE_EXPECT_DATA) = range(2)

# this is inefficient for big files
    with open(orig, encoding="UTF-8") as f:
        orig_lines = f.readlines()
    start = end = 0

# we start in wait-for-commend state
    state = STATE_EXPECT_COMMAND
    with open(edpatch, encoding="UTF-8") as f:
        lines = f.readlines()
    for line in lines:
        if state == STATE_EXPECT_COMMAND:
            # in commands get rid of whitespace, 
            line = line.strip()
            # check if we have a substitute command
            if line.startswith("s/"):
                # strip away the "s/"
                line = line[2:]
                # chop off the flags at the end 
                subs, flags = line.rsplit("/", 1)
                if flags:
                    raise PatchError("flags for s// not supported yet")
                # get the actual substitution regexp and replacement and 
                # execute it
                regexp, sep, repl = subs.partition("/")
                new, count = re.subn(regexp, repl, orig_lines[start], count=1)
                orig_lines[start] = new
                continue
            # otherwise the last char is the command
            command = line[-1]
            # read address
            (start_str, sep, end_str) = line[:-1].partition(",")
            # ed starts with 1 while python with 0
            start = int(start_str)
            start -= 1
            # if we don't have end, set it to the next line
            if end_str == "":
                end = start + 1
            else:
                end = int(end_str)
            # interpret command
            if command == "c":
                del orig_lines[start:end]
                state = STATE_EXPECT_DATA
                start -= 1
            elif command == "a":
                # not allowed to have a range in append
                state = STATE_EXPECT_DATA
            elif command == "d":
                del orig_lines[start:end]
            else:
                raise PatchError("unknown command: '%s'" % line)
        elif state == STATE_EXPECT_DATA:
            # this is the data end marker
            if line == ".\n":
                state = STATE_EXPECT_COMMAND
            else:
                # copy line verbatim and increase position
                start += 1
                orig_lines.insert(start, line)

# done with the patching, (optional) verify and write result
    result = "".join(orig_lines)
    if result_md5sum:
        md5 = hashlib.md5()
        md5.update(result.encode("UTF-8"))
        if md5.hexdigest() != result_md5sum:
            raise PatchError("the md5sum after patching is not correct")
    with open(orig, "w", encoding="UTF-8") as f:
        f.write(result)
    return True

${this.title}

Code Editor : DistUpgradePatcher.py