Ahoj, Dňa Sat, 13 Sep 2014 21:46:43 +0200 lee <l...@yun.yagibdah.de> napísal:
> Slavko <li...@slavino.sk> writes: > > > BTW, if someone is interested in, while this investigation i > > generated graphs of dependencies on some systemd packages on my > > system, they will be accessible for some time here: > > > > http://anfo.slavino.sk/libpam-systemd.png > > http://anfo.slavino.sk/libsystemd-daemon0.png > > http://anfo.slavino.sk/libsystemd-journal0.png > > http://anfo.slavino.sk/libsystemd-login0.png > > How did you create these? Some recursive call for "aptitude search ?depends(package)" in the python script, with result putting into python's dict and then generate graphviz from this dict. I attach the script, but the starting packages (systemd) and the result's path are hardcoded in it. > Would you mind if I downloaded the images and put them on my web > server, potentially with some explanation? I've been sending some > posts to debian-devel, and these graphs might come in handy sooner or > later. Consider them as public domain, but don't forget, that they displays dependencies of packages installed in my system only, not whole dependency tree. > Especially the last one is rather interesting since it clearly shows > that basically the whole system depends on systemd. > > How would such graphs look for sysvinit? Good question. When i will have some time, i will inspect them or you can try to generate own. -- Slavko http://slavino.sk
#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Copyright 2014 Slavko <li...@slavino.sk>
#
# 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.
#
import subprocess
import re
import pygraphviz as pgv
maincmd = [ 'aptitude', 'search', '-w 60', '-F %p %v %V' ]
reparts = re.compile('^ *(\S*) +(\S*) +(\S*)')
def getpkglist(pattern):
"""get main packages list
%patern% the aptidude's search apttern
%return% list of [ name, version, canditate]
"""
proces = subprocess.Popen(maincmd + [pattern],
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
stdout, stderr = proces.communicate()
# TODO raise exception on stderr
retlist = []
for line in stdout.splitlines():
name, version, candidate = reparts.search(line).groups()
retlist.append( [name, version, candidate] )
return retlist
def getpkgdeps(pkgname):
""" recursively get dependencies
%pkname% the package name
"return" nothing
"""
pattern = "~i?depends(^%s$) ~ramd64 ?not(-dev$)" % pkgname
deplist = getpkglist(pattern)
for item in deplist:
name = item[0]
try:
pkgdict[pkgname].add(name)
except KeyError:
pkgdict[pkgname] = set([name])
if not pkgdict.has_key(name):
getpkgdeps(name)
baselist = []
for item in getpkglist("~isystemd ?not(systemd-shim) ?not(dh-systemd) ?not(libsystemd-id128) ~ramd64"):
name = item[0]
baselist += [name]
for name in baselist:
pkgdict = dict()
print name
print "*" * 40
try:
getpkgdeps(name)
# suppress backtrace for not patient
except KeyboardInterrupt:
print "KeyboardInterrupt"
exit(1)
# create graphviz digraph from dict
G=pgv.AGraph(directed=True)
G.node_attr['style'] = "filled"
G.node_attr['color']= 'darkgoldenrod1'
G.node_attr['fillcolor'] = "moccasin"
for key in pkgdict.keys():
for depend in pkgdict[key]:
# red nodes for root packages
if key in baselist:
G.add_node(key, shape="box", peripheries=2, style="filled", color='firebrick', fillcolor="lightpink")
if depend in baselist:
G.add_node(depend, shape="box", peripheries=2, style="filled", color='firebrick', fillcolor="lightpink")
# green nodes for leafs
if not pkgdict.has_key(depend):
G.add_node(depend, style="filled", color='green4', fillcolor="palegreen")
G.add_edge(key, depend, dir="back")
# all root packages in the same level
G.add_subgraph(baselist,rank='same')
G.layout("dot")
G.write("/tmp/%s.dot" % name)
G.draw("/tmp/%s.png" % name)
signature.asc
Description: PGP signature
