smart-update.py

smart-update.py (text/plain), 1.15 KB, created by TGL on 2004-02-15 14:20:45 UTC

#!/usr/bin/env python

import sys,os
sys.path.insert(0, "/usr/lib/portage/pym")
from portage import catpkgsplit,pkgcmp,best,db

portdbapi=db["/"]["porttree"].dbapi

def get_slot(pkg):
	return portdbapi.aux_get(pkg,["SLOT"])[0]

def get_best_pkg(pkg):
	psplit=catpkgsplit(pkg)
	print psplit
	#list the available pkgs
	fulllist=portdbapi.match(psplit[0]+"/"+psplit[1])
	#keep only pkgs newer than pkg:
	newerlist=filter((lambda p: pkgcmp(catpkgsplit(pkg)[1:], catpkgsplit(p)[1:]) <= 0), fulllist)
	#try to return a good cpv...
	if len(newerlist):
		#sort by version
		newerlist.sort(lambda p1,p2: pkgcmp(catpkgsplit(p1)[1:], catpkgsplit(p2)[1:]))
		#get slot of the smallest version if any
		pslot=get_slot(newerlist[0])
		#filter list to keep only packages from this slot
		filteredlist=filter((lambda p: get_slot(p) == pslot), newerlist)
		#return the best package available in this slot
		return best(filteredlist)
	#if no newer package wass available, simply return the best one
	return best(fulllist)
		

if __name__ == "__main__":
	for pkg in sys.argv[1:]:
		try: print get_best_pkg(pkg)
		except:
			print >>sys.stderr, "Failed to find a matching package for",pkg
	sys.exit(0)