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297 lines
8.7 KiB
297 lines
8.7 KiB
#include <python2.6/Python.h>
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#include "dpkg.h"
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#define MAKE_PY_LIST(L,S,E,I,V) \
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do { \
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L = PyList_New(0); \
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if (!L) break; \
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for (S; E; I) { \
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PyObject *EL; \
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EL = Py_BuildValue V; \
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if (!EL) { \
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Py_DECREF(L); \
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L = NULL; \
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break; \
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} \
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PyList_Append(L, EL); \
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Py_DECREF(EL); \
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} \
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if (L) PyList_Sort(L); \
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} while(0)
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/**************************************************************************
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* britney.Packages -- dpkg_packages wrapper
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*******************************************/
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typedef enum { DONTFREE, FREE } dpkgpackages_freeme;
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typedef struct {
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PyObject_HEAD
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dpkg_packages *pkgs;
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PyObject *ref; /* object packages are "in" */
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dpkgpackages_freeme freeme; /* free pkgs when deallocing? */
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} dpkgpackages;
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staticforward PyTypeObject Packages_Type;
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static void dpkgpackages_dealloc(dpkgpackages *self) {
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if (self->freeme == FREE) free_packages(self->pkgs);
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Py_XDECREF(self->ref);
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self->pkgs = NULL;
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self->ref = NULL;
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PyObject_DEL(self);
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}
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static PyObject *dpkgpackages_isinstallable(dpkgpackages *self, PyObject *args)
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{
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char *pkgname;
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if (!PyArg_ParseTuple(args, "s", &pkgname)) return NULL;
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if (checkinstallable2(self->pkgs, pkgname)) {
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return Py_BuildValue("i", 1);
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} else {
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return Py_BuildValue("");
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}
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}
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static PyObject *dpkgpackages_remove_binary(dpkgpackages *self, PyObject *args) {
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char *pkg_name;
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(void)self; /* unused */
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if (!PyArg_ParseTuple(args, "s", &pkg_name))
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return NULL;
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dpkg_collected_package *cpkg = lookup_packagetbl(self->pkgs->packages, pkg_name);
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if (cpkg == NULL) return Py_BuildValue("i", 0);
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remove_package(self->pkgs, cpkg);
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return Py_BuildValue("i", 1);
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}
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static PyObject *dpkgpackages_add_binary(dpkgpackages *self, PyObject *args) {
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char *pkg_name;
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PyObject *value, *pyString;
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(void)self; /* unused */
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if (!PyArg_ParseTuple(args, "sO", &pkg_name, &value) ||
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!PyList_Check(value)) return NULL;
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/* initialize the new package */
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dpkg_package *pkg;
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pkg = block_malloc(sizeof(dpkg_package));
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pkg->package = strdup(pkg_name);
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pkg->priority = 0;
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pkg->details = NULL;
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pkg->depends[2] = NULL;
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pkg->depends[3] = NULL;
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pyString = PyList_GetItem(value, 0);
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if (pyString == NULL) return NULL;
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pkg->version = PyString_AsString(pyString);
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pyString = PyList_GetItem(value, 2);
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if (pyString == NULL) return NULL;
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pkg->source = PyString_AsString(pyString);
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pyString = PyList_GetItem(value, 3);
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if (pyString == NULL) return NULL;
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pkg->source_ver = PyString_AsString(pyString);
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pyString = PyList_GetItem(value, 4);
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if (pyString == NULL) return NULL;
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pkg->arch_all = (pyString == Py_None || strcmp(PyString_AsString(pyString), "all") ? 0 : 1);
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pyString = PyList_GetItem(value, 5);
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if (pyString == NULL) return NULL;
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if (pyString != Py_None) {
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pkg->depends[0] = read_dep_andor(PyString_AsString(pyString));
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} else pkg->depends[0] = NULL;
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pyString = PyList_GetItem(value, 6);
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if (pyString == NULL) return NULL;
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if (pyString != Py_None) {
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pkg->depends[1] = read_dep_andor(PyString_AsString(pyString));
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} else pkg->depends[1] = NULL;
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pyString = PyList_GetItem(value, 7);
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if (pyString == NULL) return NULL;
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if (pyString != Py_None) {
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pkg->conflicts = read_dep_and(PyString_AsString(pyString));
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} else pkg->conflicts = NULL;
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pyString = PyList_GetItem(value, 8);
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if (pyString == NULL) return NULL;
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if (pyString != Py_None) {
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pkg->provides = read_packagenames(PyString_AsString(pyString));
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} else pkg->provides = NULL;
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add_package(self->pkgs, pkg);
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return Py_BuildValue("i", 1);
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}
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static PyObject *dpkgpackages_getattr(dpkgpackages *self, char *name) {
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static struct PyMethodDef dpkgsources_methods[] = {
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{ "is_installable", (binaryfunc) dpkgpackages_isinstallable,
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METH_VARARGS, NULL },
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{ "remove_binary", (binaryfunc) dpkgpackages_remove_binary,
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METH_VARARGS, NULL },
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{ "add_binary", (binaryfunc) dpkgpackages_add_binary,
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METH_VARARGS, NULL },
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{ NULL, NULL, 0, NULL }
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};
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if (strcmp(name, "packages") == 0) {
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PyObject *packages;
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packagetbl_iter it;
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MAKE_PY_LIST(packages,
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it = first_packagetbl(self->pkgs->packages),
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!done_packagetbl(it), it = next_packagetbl(it),
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("s", it.k)
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);
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return packages;
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}
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return Py_FindMethod(dpkgsources_methods, (PyObject *)self, name);
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}
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static PyTypeObject Packages_Type = {
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PyObject_HEAD_INIT(&PyType_Type)
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0, /* ob_size (0) */
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"Packages", /* type name */
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sizeof(dpkgpackages), /* basicsize */
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0, /* itemsize (0) */
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(destructor) dpkgpackages_dealloc,
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(printfunc) 0,
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(getattrfunc) dpkgpackages_getattr,
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(setattrfunc) 0,
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(cmpfunc) 0,
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(reprfunc) 0,
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0, /* number methods */
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0, /* sequence methods */
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0, /* mapping methods */
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(hashfunc) 0, /* dict[x] ?? */
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(ternaryfunc) 0, /* x() */
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(reprfunc) 0 /* str(x) */
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};
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/**************************************************************************
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* britney.buildSystem() -- build a fake package system, with the only purpose of
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* calling the is_installable method on the packages.
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******************************************************/
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static PyObject *build_system(PyObject *self, PyObject *args) {
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Py_ssize_t pos = 0;
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char *arch;
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PyObject *pkgs, *key, *value, *pyString;
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(void)self; /* unused */
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if (!PyArg_ParseTuple(args, "sO", &arch, &pkgs) ||
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!PyDict_Check(pkgs)) return NULL;
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/* Fields and positions for the binary package:
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# VERSION = 0
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# SECTION = 1
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# SOURCE = 2
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# SOURCEVER = 3
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# ARCHITECTURE = 4
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# PREDEPENDS = 5
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# DEPENDS = 6
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# CONFLICTS = 7
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# PROVIDES = 8
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# RDEPENDS = 9
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# RCONFLICTS = 10
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*/
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dpkg_packages *dpkg_pkgs = new_packages(arch);
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/* loop on the dictionary keys to build the packages */
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while (PyDict_Next(pkgs, &pos, &key, &value)) {
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/* initialize the new package */
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dpkg_package *pkg;
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pkg = block_malloc(sizeof(dpkg_package));
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pkg->package = strdup(PyString_AsString(key));
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pkg->priority = 0;
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pkg->details = NULL;
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pkg->depends[2] = NULL;
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pkg->depends[3] = NULL;
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pyString = PyList_GetItem(value, 0);
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if (pyString == NULL) continue;
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pkg->version = PyString_AsString(pyString);
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pyString = PyList_GetItem(value, 2);
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if (pyString == NULL) continue;
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pkg->source = PyString_AsString(pyString);
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pyString = PyList_GetItem(value, 3);
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if (pyString == NULL) continue;
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pkg->source_ver = PyString_AsString(pyString);
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pyString = PyList_GetItem(value, 4);
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if (pyString == NULL) continue;
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pkg->arch_all = (pyString == Py_None || strcmp(PyString_AsString(pyString), "all") ? 0 : 1);
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pyString = PyList_GetItem(value, 5);
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if (pyString == NULL) continue;
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if (pyString != Py_None) {
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pkg->depends[0] = read_dep_andor(PyString_AsString(pyString));
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} else pkg->depends[0] = NULL;
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pyString = PyList_GetItem(value, 6);
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if (pyString == NULL) continue;
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if (pyString != Py_None) {
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pkg->depends[1] = read_dep_andor(PyString_AsString(pyString));
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} else pkg->depends[1] = NULL;
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pyString = PyList_GetItem(value, 7);
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if (pyString == NULL) continue;
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if (pyString != Py_None) {
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pkg->conflicts = read_dep_and(PyString_AsString(pyString));
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} else pkg->conflicts = NULL;
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pyString = PyList_GetItem(value, 8);
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if (pyString == NULL) continue;
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if (pyString != Py_None) {
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pkg->provides = read_packagenames(PyString_AsString(pyString));
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} else pkg->provides = NULL;
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add_package(dpkg_pkgs, pkg);
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}
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dpkgpackages *res;
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res = PyObject_NEW(dpkgpackages, &Packages_Type);
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if (res == NULL) return NULL;
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res->pkgs = dpkg_pkgs;
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res->freeme = FREE;
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res->ref = NULL;
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return (PyObject *)res;
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}
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/**************************************************************************
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* module initialisation
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***********************/
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static PyMethodDef britneymethods[] = {
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{ "buildSystem", build_system, METH_VARARGS, NULL },
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{ NULL, NULL, 0, NULL }
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};
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void initbritney(void) {
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Py_InitModule("britney", britneymethods);
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}
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