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August 27, 2013 00:12
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Atchlinux find biggest pkg
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#!/usr/bin/env python | |
# | |
# bigpkg : find packages that require a lot of space on your system | |
# v0.4.0 (2011-07-29) | |
# | |
# Copyright (c) 2009-2011 by Allan McRae <allan@archlinux.org> | |
# | |
# 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, see <http://www.gnu.org/licenses/>. | |
# | |
# Credits: Allan McRae for the initial script. markbabc and Karol for contributions | |
# | |
import os, re | |
LOCAL_DB_PATH="/var/lib/pacman/local" | |
def adjust_space(pkg, size): | |
size_l = len(size) | |
spaces = (16-size_l)*" " | |
return "{0}:{1}{2}".format(size, spaces, pkg) | |
def find_pkg_size(size, options=["KB", "MB", "GB"], count=0): | |
if size >= 1024: | |
count += 1 | |
return find_pkg_size(size/1024, options, count) | |
else: | |
if count == 0: return "{0:7,} {1}".format(size, options[count]) | |
else: return "{0:7,.2f} {1}".format(size, options[count]) | |
def strip_versioning(pkg): | |
r = re.compile('[^=,^<,^>]+') | |
m = r.match(pkg) | |
return m.group() | |
def parse_package_info(pkg, dir): | |
pkg_deps[pkg] = [] | |
pkg_provides[pkg] = [] | |
pkg_size[pkg] = 0 | |
file = LOCAL_DB_PATH + "/" + dir + "/desc" | |
f = open(file, "r") | |
while 1: | |
line = f.readline(); | |
if len(line) == 0: | |
break | |
if line[0:9] == "%DEPENDS%": | |
while 1: | |
line = f.readline(); | |
if len(line) == 1: | |
break | |
pkg_deps[pkg].append(strip_versioning(line.strip())) | |
if line[0:10] == "%PROVIDES%": | |
while 1: | |
line = f.readline(); | |
if len(line) == 1: | |
break | |
pkg_provides[pkg].append(strip_versioning(line.strip())) | |
if line[0:6] == "%SIZE%": | |
line = f.readline(); | |
pkg_size[pkg] = int(line)/1024 | |
f.close() | |
pkg_list = [] | |
pkg_deps = {} | |
pkg_provides = {} | |
pkg_size = {} | |
for dir in os.listdir(LOCAL_DB_PATH): | |
pkg = dir[0:dir.rfind("-",0,dir.rfind("-"))] | |
pkg_list.append(pkg) | |
parse_package_info(pkg, dir) | |
pkg_deptree = {} | |
for pkg in pkg_list: | |
pkg_deptree[pkg] = pkg_deps[pkg] | |
for dep in pkg_deptree[pkg]: | |
if dep in pkg_deps: | |
for rdep in pkg_deps[dep]: | |
if not rdep in pkg_deptree[pkg]: | |
pkg_deptree[pkg].append(rdep); | |
else: | |
for key in pkg_provides: | |
if dep in pkg_provides[key]: | |
pkg_deptree[pkg][pkg_deptree[pkg].index(dep)] = key | |
dep = key | |
break | |
for rdep in pkg_deps[dep]: | |
if not rdep in pkg_deptree[pkg]: | |
pkg_deptree[pkg].append(rdep); | |
needed_by = {} | |
for pkg in pkg_list: | |
needed_by[pkg] = 0 | |
for pkg in pkg_list: | |
for dep in pkg_deptree[pkg]: | |
needed_by[dep] += 1 | |
pkg_usage = {} | |
for pkg in pkg_list: | |
if needed_by[pkg] == 0: | |
pkg_usage[pkg] = pkg_size[pkg] | |
for dep in pkg_deps[pkg]: | |
pkg_usage[pkg] += pkg_size[dep] / needed_by[dep] | |
pkg_usage = [ [v[1],v[0]] for v in pkg_usage.items()] | |
pkg_usage.sort() | |
print(" SIZE PKG") | |
for pkg in range(len(pkg_usage)): | |
print("{0}".format(adjust_space(pkg_usage[pkg][1], find_pkg_size(round(pkg_usage[pkg][0]))))) | |
print(" SIZE PKG") |
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