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import os
import errno
from fnmatch import fnmatch
from gzip import GzipFile
from debian_bundle import deb822
from operator import itemgetter
import difflib
from DiffGzHandler import DiffGzHandler
class Archive:
def __init__(self, dir, suitefilter=None, pkgfilter=None):
self.root = None
self.distsdir = None
self.pkgs = {}
self.root = dir
self.distsdir = os.sep.join([dir, "dists"])
for s in self.parsesuites(filter=suitefilter):
print "suite: ",s
self.addsuite(s)
for c in self.parsecomponents(s):
print "\tcomponent:",c
self.addcomponent(s,c)
for p in self.parsesourcepackages(s,c,filter=pkgfilter):
print "\t\tpackage:",p
self.addsourcepackage(s,c,p)
def addsuite(self, suite):
self.pkgs[suite] = {}
def suites(self, filter=None):
return sorted(self.pkgs.iterkeys())
def parsesuites(self, filter=None):
slist = os.listdir(self.distsdir)
if filter:
slist = set(filter).intersection(set(slist))
for s in sorted(slist):
yield s
def addcomponent(self, suite, component):
self.pkgs[suite][component] = {}
def components(self, suite):
return sorted(self.pkgs[suite].iterkeys())
def parsecomponents(self, suite):
f = file(self.distsdir + os.sep + os.sep.join([suite, "Release"]))
rel = deb822.Release(f)
for comp in rel['Components'].split(' '):
yield comp
def addsourcepackage(self, suite, component, package):
self.pkgs[suite][component][package.name] = package
def sourcepackages(self, suite, component, filter=None, namesonly=False):
if not namesonly:
return sorted(self.pkgs[suite][component].itervalues())
else:
namer = lambda x: x.name
return sorted(map(namer, self.pkgs[suite][component].itervalues()))
def parsesourcepackages(self, suite, component, filter=None):
sfile=os.sep.join([self.distsdir,suite,component,"/source/Sources.gz"])
k = itemgetter('Package')
fdict = {}
if filter:
for name in filter:
fdict[name] = True
for ent in sorted(deb822.Sources.iter_paragraphs(GzipFile(sfile)), key=k):
if filter and not fdict.has_key(ent['Package']):
continue
else:
yield SourcePackage(ent)
def __str__(self):
return "Archive rooted at "+self.root
class ArchiveDiffer:
def diffsuites(self,a,b):
return difflib.ndiff(a.suites(), b.suites())
def diffcomponents(self,a,b, suite):
return difflib.ndiff(a.components(suite), b.components(suite))
def diffsourcepackages(self,a,b, suite, component):
return difflib.ndiff(a.sourcepackages(suite, component, namesonly=True),
b.sourcepackages(suite, component, namesonly=True))
# XXX maybe there's a better place/way for this
def getidx(letter):
name = str(letter)
if len(name) < 4 or name[0:3] != "lib":
return name[0]
else:
return name[0:4]
class SourcePackage:
def __init__(self, info):
self.diffgz_name = None
self.diffgz_size = None
self.diffgz_md5sum = None
self.diffgz = None
self.type = "Native"
self.name = info['Package']
self.format = info['Format']
self.loc = info['Directory']
self.version = info['Version']
self.idx = getidx(self)
for f in info['Files']:
if fnmatch(f['name'], '*.diff.gz'):
self.diffgz_name=f['name']
self.diffgz_size=f['size']
self.diffgz_md5sum=f['md5sum']
self.type = "Debian-diff"
def __str__(self):
return self.name
class MasterIndex:
def __init__(self):
self.pkgcounts = {}
def add(self, name):
idx = getidx(name)
if not self.pkgcounts.has_key(idx):
self.pkgcounts[idx] = 1
else:
self.pkgcounts[idx] += 1
def indices(self):
for k,v in sorted(self.pkgcounts.iteritems()):
yield (k,v)
class SourcePackageIndex:
def __init__(self):
self.pkgs = {}
def ins(self, srcpkg, rel):
if not self.pkgs.has_key(srcpkg.idx):
self.pkgs[srcpkg.idx] = {}
if not self.pkgs[srcpkg.idx].has_key(srcpkg.name):
self.pkgs[srcpkg.idx][srcpkg.name] = {}
if not self.pkgs[srcpkg.idx][srcpkg.name].has_key(rel):
self.pkgs[srcpkg.idx][srcpkg.name][rel] = srcpkg
def getletter(self, letter):
return self.pkgs[getidx(letter)]
def indices(self):
for k,v in sorted(self.pkgs.iteritems()):
yield (k,v)
# basic module tests
if __name__ == "__main__":
import Conf
import sys
import copy
a = Archive(sys.argv[1], suitefilter=["etch"])
b = copy.deepcopy(a)
b.addsuite("lenny")
b.addcomponent("etch", "something")
class x:
def __init__(self,name):
self.name=name
b.addsourcepackage("etch","main",x("foo"))
print "suite diff"
print "\n".join( ArchiveDiffer().diffsuites(a,b) )
print "component diff"
print "\n".join( ArchiveDiffer().diffcomponents(a,b,"etch") )
print "package diff"
print "\n".join( ArchiveDiffer().diffsourcepackages(a,b,"etch","main") )
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