[arch-dev-public] potentially useful scripts for soname bumps

4 Dec 2008

      Hi,

I have written a couple of script that other here might find useful.

To generate a list of packages on your computer that require a rebuild 
for a library somane bump run "rebuildlist <library>", e.g. for the 
current heimdal rebuilt, run "rebuildlist libhx509".  This creates are 
file called rebuildlist.txt with a list of packages that need rebuilt in 
it, although it is limited to what is on your system but I do not see a 
way around that.

The second script take a list of packages that need rebuilt and 
annotates that list with information on the order it needs done.  E.g. 
for the heimdal rebuild, I ran "rebuildorder rebuildlist.txt" and got:

brasero (Requires totem-plparser)
cups (Requires libcups)
cvs
evince (Requires libspectre)
evolution-data-server (Requires gnome-vfs)
ghostscript (Requires gtk2)
gnome-panel (Requires evolution-data-server)
gnome-python-desktop (Requires gnome-vfs)
gnome-vfs (Requires smbclient, gtk2)
gstreamer0.10-bad-plugins (Requires neon)
gtk2 (Requires libcups)
hplip (Requires cups, ghostscript)
imagemagick (Requires ghostscript)
libcups
libgnomecups (Requires libcups)
libgnomeprint (Requires libgnomecups)
libspectre (Requires ghostscript)
mplayer (Requires gtk2, smbclient)
neon
openoffice-base (Requires neon)
openssh
smbclient
subversion (Requires neon)
totem-plparser (Requires evolution-data-server)
xfprint (Requires imagemagick)

The rebuildorder script is my first "real" python script so it could 
probably be improved. If people think that these would be useful to have 
somewhere, I can tidy them up a put them in a git repo somewhere.

Allan

#! /bin/bash

library=$1
if [ "x$library" == "x" ]; then
	echo "Usage $0 <library>"
	exit
fi

for pkg in $(pacman -Qq); do
	echo $pkg
	found=$(ldd $(pacman -Ql $pkg) 2>/dev/null | grep "${library}.so" | wc -l)
	if [ $found -ne 0 ]; then
		echo $pkg >> rebuildlist.txt
	fi;
done

#! /usr/bin/env python

import os, sys

def get_deps( package ):
	deps = []

	pkginfo = os.popen("pacman -Si " + package + " 2> /dev/null").read().split("\n")
	if pkginfo != ['']:
		found = False
		for i in pkginfo:
			if not found:
				if i[0:10] == "Depends On":
					deplist = i.split()[3:]
					found = True
			else:
				if i[0] != " ":
					break
				deplist += i.split()

		for i in deplist:
			pkg = i.split(">")[0].split("<")[0].split("=")[0]
			if os.popen("pacman -Si " + pkg + " 2> /dev/null").read().split("\n") != ['']:
				deps.append(pkg)

	return deps

rebuild_file = open(sys.argv[1], "r")
rebuild_list = rebuild_file.read().split()

rebuild_deps = {}
package_deps = {}

for i in rebuild_list:
	package_deps[i] = get_deps(i)

for package in rebuild_list:
	rebuild_deps[package] = package_deps[package][:]

	pos = 0
	while pos < len(rebuild_deps[package]):
		dep = rebuild_deps[package][pos]

		if not package_deps.has_key(dep):
			package_deps[dep] = get_deps(dep)

		for i in package_deps[dep]:
			if not i in rebuild_deps[package]:
				rebuild_deps[package].append(i)
		pos += 1

for package in rebuild_list:
	pos = 0
	while pos < len(rebuild_deps[package]): 
		if rebuild_deps[package][pos] in rebuild_list:
			pos += 1
		else:
			rebuild_deps[package].pop(pos)

filtered_deps = {}
for package in rebuild_list:
	filtered_deps[package] = rebuild_deps[package][:]
	if len(filtered_deps[package]) > 1:
		pos=0
		while pos < len(filtered_deps[package]) and len(filtered_deps[package]) > 1: 
			removed = False
			for i in filtered_deps[package]:
				if filtered_deps[package][pos] in rebuild_deps[i]:
					filtered_deps[package].pop(pos)
					removed = True
					break

			if not removed:
				pos += 1

for package in rebuild_list:
	if len(rebuild_deps[package]) == 0:
		print package
	else:
		rebuild_deps[package].sort()
		print package + " (Requires " + ", ".join(["%s" % pkg for pkg in filtered_deps[package]]) +")"

[arch-dev-public] potentially useful scripts for soname bumps

Allan McRae