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import apt_pkg, string
class Package(object):
def __init__(self, cache, depcache, records, pcache, pkgiter):
""" Init the Package object """
self._cache = cache # low level cache
self._depcache = depcache
self._records = records
self._pkg = pkgiter
self._pcache = pcache # python cache in cache.py
pass
# helper
def _LookupRecord(self, UseCandidate=True):
""" internal helper that moves the Records to the right
position, must be called before _records is accessed """
if UseCandidate:
ver = self._depcache.GetCandidateVer(self._pkg)
else:
ver = self._pkg.CurrentVer
if ver.FileList == None:
print "got: %s " % ver.FileList
return
file, index = ver.FileList.pop(0)
self._records.Lookup((file,index))
# basic information
def Name(self):
""" return the name of the package """
return self._pkg.Name
def ID(self):
""" return a uniq ID for the pkg, can be used to store
additional information about the pkg """
return self._pkg.ID
def InstalledVersion(self):
""" return the installed version as string """
ver = self._pkg.CurrentVer
if ver != None:
return ver.VerStr
else:
return None
def CandidateVersion(self):
""" return the candidate version as string """
ver = self._depcache.GetCandidateVer(self._pkg)
if ver != None:
return ver.VerStr
else:
return None
def SourcePackageName(self):
""" return the source package name as string """
self._LookupRecord()
src = self._records.SourcePkg
if src != "":
return src
else:
return self._pkg.Name
def Section(self):
""" return the section of the package"""
return self._pkg.Section
def Priority(self, UseCandidate=True):
""" return the priority """
if UseCandidate:
ver = self._depcache.GetCandidateVer(self._pkg)
else:
ver = self._pkg.CurrentVer
if ver:
return ver.PriorityStr
else:
return None
def Summary(self):
""" return the short description (one-line summary) """
self._LookupRecord()
return self._records.ShortDesc
def Description(self, format=False):
""" return the long description """
self._LookupRecord()
if format:
desc = ""
for line in string.split(self._records.LongDesc, "\n"):
tmp = string.strip(line)
if tmp == ".":
desc += "\n"
else:
desc += tmp + "\n"
return desc
else:
return self._records.LongDesc
# depcache state
def MarkedInstall(self):
return self._depcache.MarkedInstall(self._pkg)
def MarkedUpgrade(self):
return self._depcache.MarkedUpgrade(self._pkg)
def MarkedDelete(self):
return self._depcache.MarkedDelete(self._pkg)
def MarkedKeep(self):
return self._depcache.MarkedKeep(self._pkg)
def MarkedDowngrade(self):
return self._depcache.MarkedDowngrade(self._pkg)
def MarkedReinstall(self):
return self._depcache.MarkedReinstall(self._pkg)
def IsInstalled(self):
return (self._pkg.CurrentVer != None)
def IsUpgradable(self):
return self.IsInstalled() and self._depcache.IsUpgradable(self._pkg)
# depcache action
def MarkKeep(self):
self._pcache.CachePreChange()
self._depcache.MarkKeep(self._pkg)
self._pcache.CachePostChange()
def MarkDelete(self):
self._pcache.CachePreChange()
self._depcache.MarkDelete(self._pkg)
self._pcache.CachePostChange()
def MarkInstall(self):
self._pcache.CachePreChange()
return self._depcache.MarkInstall(self._pkg)
self._pcache.CachePostChange()
# size
def PackageSize(self, UseCandidate=True):
if UseCandidate:
ver = self._depcache.GetCandidateVer(self._pkg)
else:
ver = self._pkg.GetCurrentVer
return ver.Size
def InstalledSize(self, UseCandidate=True):
if UseCandidate:
ver = self._depcache.GetCandidateVer(self._pkg)
else:
ver = self._pkg.GetCurrentVer
return ver.InstalledSize
def Commit(self, fprogress, iprogress):
self._depcache.Commit(fprogress, iprogress)
# self-test
if __name__ == "__main__":
print "Self-test for the Package modul"
apt_pkg.init()
cache = apt_pkg.GetCache()
depcache = apt_pkg.GetDepCache(cache)
records = apt_pkg.GetPkgRecords(cache)
iter = cache["apt-utils"]
pkg = Package(cache, depcache, records, iter)
print "Name: %s " % pkg.Name()
print "Installed: %s " % pkg.InstalledVersion()
print "Candidate: %s " % pkg.CandidateVersion()
print "SourcePkg: %s " % pkg.SourcePackageName()
print "Section: %s " % pkg.Section()
print "Priority (Candidate): %s " % pkg.Priority()
print "Priority (Installed): %s " % pkg.Priority(False)
print "Summary: %s" % pkg.Summary()
print "Description:\n%s" % pkg.Description()
print "Description (formated) :\n%s" % pkg.Description(True)
print "InstalledSize: %s " % pkg.InstalledSize()
print "PackageSize: %s " % pkg.PackageSize()
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