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/* Chrysalide - Outil d'analyse de fichiers binaires
* pathname.c - équivalent Python du fichier "common/pathname.c"
*
* Copyright (C) 2018-2019 Cyrille Bagard
*
* This file is part of Chrysalide.
*
* Chrysalide is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* Chrysalide is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "pathname.h"
#include <malloc.h>
#include <pygobject.h>
#include <i18n.h>
#include <common/pathname.h>
#include "../access.h"
#include "../helpers.h"
/* Calcule le chemin relatif entre deux fichiers donnés. */
static PyObject *py_pathname_build_relative_filename(PyObject *, PyObject *);
/* Calcule le chemin absolu d'un fichier par rapport à un autre. */
static PyObject *py_pathname_build_absolute_filename(PyObject *, PyObject *);
/******************************************************************************
* *
* Paramètres : self = NULL car méthode statique. *
* args = arguments fournis lors de l'appel à la fonction. *
* *
* Description : Calcule le chemin relatif entre deux fichiers donnés. *
* *
* Retour : Chemin relatif obtenu. *
* *
* Remarques : - *
* *
******************************************************************************/
static PyObject *py_pathname_build_relative_filename(PyObject *self, PyObject *args)
{
PyObject *result; /* Instance à retourner */
const char *ref; /* Fichier de référence */
const char *target; /* Fichier à cibler */
int ret; /* Bilan de lecture des args. */
char *relative; /* Chemin d'accès construit */
#define BUILD_RELATIVE_FILENAME_METHOD PYTHON_METHOD_DEF \
( \
build_relative_filename, "reference, target", \
METH_VARARGS, py_pathname, \
"Compute the relative path between two files: a *reference*" \
" location as point of view and a *target* file.\n" \
"\n" \
"Both arguments must be strings.\n" \
"\n" \
"The result is also a string." \
)
ret = PyArg_ParseTuple(args, "ss", &ref, &target);
if (!ret) return NULL;
relative = build_relative_filename(ref, target);
result = PyUnicode_FromString(relative);
free(relative);
return result;
}
/******************************************************************************
* *
* Paramètres : self = NULL car méthode statique. *
* args = arguments fournis lors de l'appel à la fonction. *
* *
* Description : Calcule le chemin absolu d'un fichier par rapport à un autre.*
* *
* Retour : Chemin absolu obtenu. *
* *
* Remarques : - *
* *
******************************************************************************/
static PyObject *py_pathname_build_absolute_filename(PyObject *self, PyObject *args)
{
PyObject *result; /* Instance à retourner */
const char *ref; /* Fichier de référence */
const char *target; /* Fichier à cibler */
int ret; /* Bilan de lecture des args. */
char *relative; /* Chemin d'accès construit */
#define BUILD_ABSOLUTE_FILENAME_METHOD PYTHON_METHOD_DEF \
( \
build_absolute_filename, "reference, target", \
METH_VARARGS, py_pathname, \
"Compute the absolute path for a *target* file from a" \
" *reference* location.\n" \
"\n" \
"Both arguments must be strings.\n" \
"\n" \
"The result is a string on success. A *ValueError* exception" \
" is raised on failure." \
)
ret = PyArg_ParseTuple(args, "ss", &ref, &target);
if (!ret) return NULL;
relative = build_absolute_filename(ref, target);
if (relative == NULL)
{
PyErr_SetString(PyExc_ValueError, _("Relative path is too deep."));
result = NULL;
}
else
{
result = PyUnicode_FromString(relative);
free(relative);
}
return result;
}
/******************************************************************************
* *
* Paramètres : - *
* *
* Description : Définit une extension du module 'common' à compléter. *
* *
* Retour : Bilan de l'opération. *
* *
* Remarques : - *
* *
******************************************************************************/
bool populate_common_module_with_pathname(void)
{
bool result; /* Bilan à retourner */
PyObject *module; /* Module à recompléter */
static PyMethodDef py_pathname_methods[] = {
BUILD_RELATIVE_FILENAME_METHOD,
BUILD_ABSOLUTE_FILENAME_METHOD,
{ NULL }
};
module = get_access_to_python_module("pychrysalide.common");
result = register_python_module_methods(module, py_pathname_methods);
return result;
}
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