summaryrefslogtreecommitdiff
path: root/python/rpm/transaction.py.in
blob: 764a5cb68448809ad27909b909bd89ed5099fe7f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
from __future__ import with_statement

import sys
import @PYTHON_MODULENAME@ as rpm
from @PYTHON_MODULENAME@._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):
        return rpm.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):
            with open(item) as f:
                header = self.hdrFromFdno(f)
        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 how not 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 '<' in needop:
                    needflags |= rpm.RPMSENSE_LESS
                if '=' in needop:
                    needflags |= rpm.RPMSENSE_EQUAL
                if '>' in needop:
                    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