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
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
#include "rpmsystem-py.h"
#include <rpm/rpmdb.h>
#include "rpmmi-py.h"
#include "header-py.h"
#include "debug.h"
/** \ingroup python
* \class Rpmmi
* \brief A python rpm.mi match iterator object represents the result of a
* database query.
*
* Instances of the rpm.mi object provide access to headers that match
* certain criteria. Typically, a primary index is accessed to find
* a set of headers that contain a key, and each header is returned
* serially.
*
* The rpm.mi class conains the following methods:
* - next() -> hdr Return the next header that matches.
*
* - pattern(tag,mire,pattern) Specify secondary match criteria.
*
* To obtain a rpm.mi object to query the database used by a transaction,
* the ts.match(tag,key,len) method is used.
*
* Here's an example that prints the name of all installed packages:
* \code
* import rpm
* ts = rpm.TransactionSet()
* for h in ts.dbMatch():
* print h['name']
* \endcode
*
* Here's a more typical example that uses the Name index to retrieve
* all installed kernel(s):
* \code
* import rpm
* ts = rpm.TransactionSet()
* mi = ts.dbMatch('name', "kernel")
* for h in mi:
* print "%s-%s-%s" % (h['name'], h['version'], h['release'])
* \endcode
*
* Finally, here's an example that retrieves all packages whose name
* matches the glob expression "XFree*":
* \code
* import rpm
* ts = rpm.TransactionSet()
* mi = ts.dbMatch()
* mi.pattern('name', rpm.RPMMIRE_GLOB, "XFree*")
* for h in mi:
* print "%s-%s-%s" % (h['name'], h['version'], h['release'])
* \endcode
*
*/
/** \ingroup python
* \name Class: Rpmmi
*/
struct rpmmiObject_s {
PyObject_HEAD
PyObject *md_dict; /*!< to look like PyModuleObject */
PyObject *ref; /* for db/ts refcounting */
rpmdbMatchIterator mi;
} ;
static PyObject *
rpmmi_iternext(rpmmiObject * s)
{
Header h;
if (s->mi == NULL || (h = rpmdbNextIterator(s->mi)) == NULL) {
s->mi = rpmdbFreeIterator(s->mi);
return NULL;
}
return hdr_Wrap(&hdr_Type, h);
}
static PyObject *
rpmmi_Instance(rpmmiObject * s)
{
int rc = 0;
if (s->mi != NULL)
rc = rpmdbGetIteratorOffset(s->mi);
return Py_BuildValue("i", rc);
}
static PyObject *
rpmmi_Count(rpmmiObject * s)
{
DEPRECATED_METHOD("use len(mi) instead");
return Py_BuildValue("i", PyMapping_Size((PyObject *)s));
}
static PyObject *
rpmmi_Pattern(rpmmiObject * s, PyObject * args, PyObject * kwds)
{
int type;
char * pattern;
rpmTag tag;
char * kwlist[] = {"tag", "type", "patern", NULL};
if (!PyArg_ParseTupleAndKeywords(args, kwds, "O&is:Pattern", kwlist,
tagNumFromPyObject, &tag, &type, &pattern))
return NULL;
rpmdbSetIteratorRE(s->mi, tag, type, pattern);
Py_RETURN_NONE;
}
static struct PyMethodDef rpmmi_methods[] = {
{"instance", (PyCFunction) rpmmi_Instance, METH_NOARGS,
NULL },
{"count", (PyCFunction) rpmmi_Count, METH_NOARGS,
NULL },
{"pattern", (PyCFunction) rpmmi_Pattern, METH_VARARGS|METH_KEYWORDS,
"mi.pattern(TagN, mire_type, pattern)\n\
- Set a secondary match pattern on tags from retrieved header.\n" },
{NULL, NULL} /* sentinel */
};
static void rpmmi_dealloc(rpmmiObject * s)
{
s->mi = rpmdbFreeIterator(s->mi);
Py_DECREF(s->ref);
Py_TYPE(s)->tp_free((PyObject *)s);
}
static Py_ssize_t rpmmi_length(rpmmiObject * s)
{
return s->mi ? rpmdbGetIteratorCount(s->mi) : 0;
}
PyMappingMethods rpmmi_as_mapping = {
(lenfunc) rpmmi_length, /* mp_length */
0,
};
static char rpmmi_doc[] =
"";
PyTypeObject rpmmi_Type = {
PyVarObject_HEAD_INIT(&PyType_Type, 0)
"rpm.mi", /* tp_name */
sizeof(rpmmiObject), /* tp_size */
0, /* tp_itemsize */
(destructor) rpmmi_dealloc, /* tp_dealloc */
0, /* tp_print */
(getattrfunc)0, /* tp_getattr */
0, /* tp_setattr */
0, /* tp_compare */
0, /* tp_repr */
0, /* tp_as_number */
0, /* tp_as_sequence */
&rpmmi_as_mapping, /* tp_as_mapping */
0, /* tp_hash */
0, /* tp_call */
0, /* tp_str */
PyObject_GenericGetAttr, /* tp_getattro */
PyObject_GenericSetAttr, /* tp_setattro */
0, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE, /* tp_flags */
rpmmi_doc, /* tp_doc */
0, /* tp_traverse */
0, /* tp_clear */
0, /* tp_richcompare */
0, /* tp_weaklistoffset */
PyObject_SelfIter, /* tp_iter */
(iternextfunc) rpmmi_iternext, /* tp_iternext */
rpmmi_methods, /* tp_methods */
0, /* tp_members */
0, /* tp_getset */
0, /* tp_base */
0, /* tp_dict */
0, /* tp_descr_get */
0, /* tp_descr_set */
0, /* tp_dictoffset */
0, /* tp_init */
0, /* tp_alloc */
0, /* tp_new */
0, /* tp_free */
0, /* tp_is_gc */
};
PyObject * rpmmi_Wrap(PyTypeObject *subtype, rpmdbMatchIterator mi, PyObject *s)
{
rpmmiObject * mio = (rpmmiObject *)subtype->tp_alloc(subtype, 0);
if (mio == NULL) return NULL;
mio->mi = mi;
mio->ref = s;
Py_INCREF(mio->ref);
return (PyObject *) mio;
}
|
