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#!/usr/bin/python
import sys
import rpm
from rpm._rpm import ts as TransactionSetCore
if sys.version_info[0] == 3:
_string_types = str,
else:
_string_types = basestring,
# TODO: migrate relevant documentation from C-side
class TransactionSet(TransactionSetCore):
_probFilter = 0
def _wrapSetGet(self, attr, val):
oval = getattr(self, attr)
setattr(self, attr, val)
return oval
def setVSFlags(self, flags):
return self._wrapSetGet('_vsflags', flags)
def getVSFlags(self):
return self._vsflags
def setColor(self, color):
return self._wrapSetGet('_color', color)
def setPrefColor(self, color):
return self._wrapSetGet('_prefcolor', color)
def setFlags(self, flags):
return self._wrapSetGet('_flags', flags)
def setProbFilter(self, ignoreSet):
return self._wrapSetGet('_probFilter', ignoreSet)
def parseSpec(self, specfile):
import _rpmb
return _rpmb.spec(specfile)
def getKeys(self):
keys = []
for te in self:
keys.append(te.Key())
# Backwards compatibility goo - WTH does this return a *tuple* ?!
if not keys:
return None
else:
return tuple(keys)
def _f2hdr(self, item):
if isinstance(item, _string_types):
f = open(item)
header = self.hdrFromFdno(f)
f.close()
elif isinstance(item, rpm.hdr):
header = item
else:
header = self.hdrFromFdno(item)
return header
def addInstall(self, item, key, how="u"):
header = self._f2hdr(item)
if not how in ['u', 'i']:
raise ValueError('how argument must be "u" or "i"')
upgrade = (how == "u")
if not TransactionSetCore.addInstall(self, header, key, upgrade):
raise rpm.error("adding package to transaction failed")
def addReinstall(self, item, key):
header = self._f2hdr(item)
if not TransactionSetCore.addReinstall(self, header, key):
raise rpm.error("adding package to transaction failed")
def addErase(self, item):
hdrs = []
if isinstance(item, rpm.hdr):
hdrs = [item]
elif isinstance(item, rpm.mi):
hdrs = item
elif isinstance(item, int):
hdrs = self.dbMatch(rpm.RPMDBI_PACKAGES, item)
elif isinstance(item, _string_types):
hdrs = self.dbMatch(rpm.RPMDBI_LABEL, item)
else:
raise TypeError("invalid type %s" % type(item))
for h in hdrs:
if not TransactionSetCore.addErase(self, h):
raise rpm.error("package not installed")
# garbage collection should take care but just in case...
if isinstance(hdrs, rpm.mi):
del hdrs
def run(self, callback, data):
rc = TransactionSetCore.run(self, callback, data, self._probFilter)
# crazy backwards compatibility goo: None for ok, list of problems
# if transaction didn't complete and empty list if it completed
# with errors
if rc == 0:
return None
res = []
if rc > 0:
for prob in self.problems():
item = ("%s" % prob, (prob.type, prob._str, prob._num))
res.append(item)
return res
def check(self, *args, **kwds):
TransactionSetCore.check(self, *args, **kwds)
# compatibility: munge problem strings into dependency tuples of doom
res = []
for p in self.problems():
# is it anything we need to care about?
if p.type == rpm.RPMPROB_CONFLICT:
sense = rpm.RPMDEP_SENSE_CONFLICTS
elif p.type == rpm.RPMPROB_REQUIRES:
sense = rpm.RPMDEP_SENSE_REQUIRES
else:
continue
# strip arch, split to name, version, release
nevr = p.altNEVR.rsplit('.', 1)[0]
n, v, r = nevr.rsplit('-', 2)
# extract the dependency information
needs = p._str.split()
needname = needs[0]
needflags = rpm.RPMSENSE_ANY
if len(needs) == 3:
needop = needs[1]
if needop.find('<') >= 0: needflags |= rpm.RPMSENSE_LESS
if needop.find('=') >= 0: needflags |= rpm.RPMSENSE_EQUAL
if needop.find('>') >= 0: needflags |= rpm.RPMSENSE_GREATER
needver = needs[2]
else:
needver = ""
res.append(((n, v, r),(needname,needver),needflags,sense,p.key))
return res
def hdrCheck(self, blob):
res, msg = TransactionSetCore.hdrCheck(self, blob)
# generate backwards compatibly broken exceptions
if res == rpm.RPMRC_NOKEY:
raise rpm.error("public key not available")
elif res == rpm.RPMRC_NOTTRUSTED:
raise rpm.error("public key not trusted")
elif res != rpm.RPMRC_OK:
raise rpm.error(msg)
def hdrFromFdno(self, fd):
res, h = TransactionSetCore.hdrFromFdno(self, fd)
# generate backwards compatibly broken exceptions
if res == rpm.RPMRC_NOKEY:
raise rpm.error("public key not available")
elif res == rpm.RPMRC_NOTTRUSTED:
raise rpm.error("public key not trusted")
elif res != rpm.RPMRC_OK:
raise rpm.error("error reading package header")
return h