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// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
// $Id: generic.cc,v 1.1.1.1 2001/02/20 06:32:01 jgg Exp $
/* ######################################################################
generic - Some handy functions to make integration a tad simpler
##################################################################### */
/*}}}*/
// Include Files /*{{{*/
#include "generic.h"
using namespace std;
#include <apt-pkg/error.h>
/*}}}*/
// HandleErrors - This moves errors from _error to Python Exceptions /*{{{*/
// ---------------------------------------------------------------------
/* We throw away all warnings and only propogate the first error. */
PyObject *HandleErrors(PyObject *Res)
{
if (_error->PendingError() == false)
{
// Throw away warnings
_error->Discard();
return Res;
}
if (Res != 0) {
Py_DECREF(Res);
}
string Err;
int errcnt = 0;
while (_error->empty() == false)
{
string Msg;
bool Type = _error->PopMessage(Msg);
if (errcnt > 0)
Err.append(", ");
Err.append((Type == true ? "E:" : "W:"));
Err.append(Msg);
++errcnt;
}
if (errcnt == 0)
Err = "Internal Error";
PyErr_SetString(PyExc_SystemError,Err.c_str());
return 0;
}
# ifdef COMPAT_0_7
// Helpers for deprecation.
// Given the name of the old attribute, return the name of the new attribute
// in a PyObject.
static PyObject *_PyApt_NewNameForAttribute(const char *attr) {
// Some exceptions from the standard algorithm.
if (strcasecmp(attr, "FileName") == 0) return PyString_FromString("filename");
if (strcasecmp(attr, "DestFile") == 0) return PyString_FromString("destfile");
if (strcasecmp(attr, "FileSize") == 0) return PyString_FromString("filesize");
if (strcasecmp(attr, "SubTree") == 0) return PyString_FromString("subtree");
if (strcasecmp(attr, "ReadPinFile") == 0) return PyString_FromString("read_pinfile");
if (strcasecmp(attr, "SetReInstall") == 0) return PyString_FromString("set_reinstall");
if (strcasecmp(attr, "URI") == 0) return PyString_FromString("uri");
if (strcasecmp(attr, "ArchiveURI") == 0) return PyString_FromString("archive_uri");
if (strcasecmp(attr, "MD5Hash") == 0) return PyString_FromString("md5_hash");
if (strcasecmp(attr, "SHA1Hash") == 0) return PyString_FromString("sha1_hash");
if (strcasecmp(attr, "SHA256Hash") == 0) return PyString_FromString("sha256_hash");
if (strcasecmp(attr, "UntranslatedDepType") == 0) return PyString_FromString("dep_type_untranslated");
size_t attrlen = strlen(attr);
// Reserve the old name + 5, this should reduce resize to a minimum.
string new_name;
new_name.reserve(attrlen + 5);
for(unsigned int i=0; i < attrlen; i++) {
// Replace all uppercase ASCII characters with their lower-case ones.
if (attr[i] > 64 && attr[i] < 91) {
if (i > 0)
new_name += "_";
new_name += attr[i] + 32;
} else {
new_name += attr[i];
}
}
return CppPyString(new_name);
}
// Handle deprecated attributes by setting a warning and returning the new
// attribute.
PyObject *_PyAptObject_getattro(PyObject *self, PyObject *attr) {
PyObject *value = PyObject_GenericGetAttr(self, attr);
if (value == NULL) {
PyObject *ptype, *pvalue, *ptraceback;
PyErr_Fetch(&ptype, &pvalue, &ptraceback);
const char *attrname = PyObject_AsString(attr);
PyObject *newattr = _PyApt_NewNameForAttribute(attrname);
value = PyObject_GenericGetAttr(self, newattr);
if (value != NULL) {
const char *newattrname = PyString_AsString(newattr);
const char *cls = self->ob_type->tp_name;
char *warning_string = new char[strlen(newattrname) + strlen(cls) +
strlen(attrname) + 66];
sprintf(warning_string, "Attribute '%s' of the '%s' object is "
"deprecated, use '%s' instead.", attrname, cls, newattrname);
PyErr_WarnEx(PyExc_DeprecationWarning, warning_string, 1);
delete[] warning_string;
} else {
Py_XINCREF(ptype);
Py_XINCREF(pvalue);
Py_XINCREF(ptraceback);
PyErr_Restore(ptype, pvalue, ptraceback);
}
Py_DECREF(newattr);
Py_XDECREF(ptype);
Py_XDECREF(pvalue);
Py_XDECREF(ptraceback);
}
return value;
}
# endif //COMPAT_0_7
/*}}}*/
// ListToCharChar - Convert a list to an array of char char /*{{{*/
// ---------------------------------------------------------------------
/* Caller must free the result. 0 on error. */
const char **ListToCharChar(PyObject *List,bool NullTerm)
{
// Convert the argument list into a char **
int Length = PySequence_Length(List);
const char **Res = new const char *[Length + (NullTerm == true?1:0)];
for (int I = 0; I != Length; I++)
{
PyObject *Itm = PySequence_GetItem(List,I);
if (PyString_Check(Itm) == 0)
{
PyErr_SetNone(PyExc_TypeError);
delete [] Res;
return 0;
}
Res[I] = PyString_AsString(Itm);
}
if (NullTerm == true)
Res[Length] = 0;
return Res;
}
/*}}}*/
// CharCharToList - Inverse of the above /*{{{*/
// ---------------------------------------------------------------------
/* Zero size indicates the list is Null terminated. */
PyObject *CharCharToList(const char **List,unsigned long Size)
{
if (Size == 0)
{
for (const char **I = List; *I != 0; I++)
Size++;
}
// Convert the whole configuration space into a list
PyObject *PList = PyList_New(Size);
for (unsigned long I = 0; I != Size; I++, List++)
PyList_SetItem(PList,I,PyString_FromString(*List));
return PList;
}
/*}}}*/
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