def sources_filename_from_ppa_entry(entry):
"""
takes a PPA SourceEntry and returns a filename suitable for sources.list.d
"""
import apt_pkg
name = "%s.list" % apt_pkg.URItoFileName(entry.uri)
return name
def get_release_filename_for_pkg(cache, pkgname, label, release):
" get the release file that provides this pkg "
if not cache.has_key(pkgname):
return None
pkg = cache[pkgname]
ver = None
# look for the version that comes from the repos with
# the given label and origin
for aver in pkg._pkg.VersionList:
if aver == None or aver.FileList == None:
continue
for verFile, index in aver.FileList:
#print verFile
if (verFile.Origin == label and verFile.Label == label
and verFile.Archive == release):
ver = aver
if not ver:
return None
indexfile = cache._list.FindIndex(ver.FileList[0][0])
for metaindex in cache._list.List:
for m in metaindex.IndexFiles:
if (indexfile and indexfile.Describe == m.Describe
and indexfile.IsTrusted):
dir = apt_pkg.Config.FindDir("Dir::State::lists")
name = apt_pkg.URItoFileName(
metaindex.URI) + "dists_%s_Release" % metaindex.Dist
return dir + name
return None
def _copyRelease(self, signatures, targetdir=None):
" copy the release file "
if not targetdir:
targetdir = apt_pkg.Config.find_dir("Dir::State::lists")
diskname = self._readDiskName()
for sig in signatures:
releasef = os.path.splitext(sig)[0]
# copy both Release and Release.gpg
for f in (sig, releasef):
fname = apt_pkg.URItoFileName("cdrom:[%s]/%s" %
(diskname, f[f.find("dists"):]))
shutil.copy(f, os.path.join(targetdir, fname))
return True
def _copyTranslations(self, translations, targetdir=None):
if not targetdir:
targetdir = apt_pkg.Config.find_dir("Dir::State::lists")
diskname = self._readDiskName()
for f in translations:
fname = apt_pkg.URItoFileName("cdrom:[%s]/%s" %
(diskname, f[f.find("dists"):]))
outf = os.path.join(targetdir, os.path.splitext(fname)[0])
if f.endswith(".gz"):
g = gzip.open(f)
out = open(outf, "w")
# uncompress in 64k chunks
while True:
s = g.read(64000)
out.write(s)
if s == "":
break
else:
shutil.copy(f, outf)
return True
def load(self):
"""
Regenerates the fake configuration and load the packages server.
"""
if not self.loaded:
log.msg("Loading Packages database for "+self.status_dir,'apt_pkg')
shutil.rmtree(self.status_dir+'/apt/lists/')
os.makedirs(self.status_dir+'/apt/lists/partial')
sources = open(self.status_dir+'/'+'apt/etc/sources.list', 'w')
for file in self.packages.keys():
# we should probably clear old entries from self.packages and
# take into account the recorded mtime as optimization
fake_uri='http://apt-proxy:'+file
source_line='deb '+dirname(fake_uri)+'/ /'
listpath=(self.status_dir+'/apt/lists/'
+apt_pkg.URItoFileName(fake_uri))
sources.write(source_line+'\n')
try:
#we should empty the directory instead
os.unlink(listpath)
except:
pass
os.symlink('../../../../../'+file, listpath)
sources.close()
for key, value in self.local_config.items():
apt_pkg.Config[key] = value
apt_pkg.InitSystem()
if log.isEnabled('apt'):
self.cache = apt_pkg.GetCache()
else:
# apt_pkg prints progress messages to stdout, disable
self.__save_stdout()
self.cache = apt_pkg.GetCache()
self.__restore_stdout()
self.records = apt_pkg.GetPkgRecords(self.cache)
self.loaded = 1