Martin Poirier
5dfef1ae35
I was careful in selectively rolling back revisions, but if you've committed changes unrelated to BPY mixed with BPY changes, I might have reverted those too, so please double check.
401 lines
12 KiB
C
401 lines
12 KiB
C
/*
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* $Id: Sys.c 10945 2007-06-16 13:17:41Z campbellbarton $
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*
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* ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version. The Blender
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* Foundation also sells licenses for use in proprietary software under
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* the Blender License. See http://www.blender.org/BL/ for information
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* about this.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
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* All rights reserved.
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*
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* This is a new part of Blender.
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*
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* Contributor(s): Willian P. Germano, Campbell Barton
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*
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* ***** END GPL/BL DUAL LICENSE BLOCK *****
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*/
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#include "Sys.h" /*This must come first*/
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#include "BKE_utildefines.h"
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#include "BKE_global.h"
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#include "BLI_blenlib.h"
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#include "DNA_scene_types.h" /* G.scene-"r.cfra */
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#include "PIL_time.h"
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#include "gen_utils.h"
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#ifdef WIN32
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#define DIRSEP '\\'
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#define DIRSEP_STR "\\"
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#else
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#define DIRSEP '/'
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#define DIRSEP_STR "/"
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#endif
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/*****************************************************************************/
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/* Python API function prototypes for the sys module. */
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/*****************************************************************************/
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static PyObject *M_sys_basename( PyObject * self, PyObject * value );
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static PyObject *M_sys_dirname( PyObject * self, PyObject * value );
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static PyObject *M_sys_join( PyObject * self, PyObject * args );
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static PyObject *M_sys_splitext( PyObject * self, PyObject * value );
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static PyObject *M_sys_makename( PyObject * self, PyObject * args,
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PyObject * kw );
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static PyObject *M_sys_exists( PyObject * self, PyObject * value );
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static PyObject *M_sys_time( PyObject * self );
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static PyObject *M_sys_sleep( PyObject * self, PyObject * args );
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static PyObject *M_sys_expandpath( PyObject *self, PyObject *value);
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/*****************************************************************************/
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/* The following string definitions are used for documentation strings. */
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/* In Python these will be written to the console when doing a */
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/* Blender.sys.__doc__ */
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/*****************************************************************************/
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static char M_sys_doc[] = "The Blender.sys submodule\n\
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\n\
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This is a minimal system module to supply simple functionality available\n\
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in the default Python module os.";
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static char M_sys_basename_doc[] =
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"(path) - Split 'path' in dir and filename.\n\
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Return the filename.";
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static char M_sys_dirname_doc[] =
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"(path) - Split 'path' in dir and filename.\n\
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Return the dir.";
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static char M_sys_join_doc[] =
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"(dir, file) - Join dir and file to form a full filename.\n\
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Return the filename.";
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static char M_sys_splitext_doc[] =
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"(path) - Split 'path' in root and extension:\n\
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/this/that/file.ext -> ('/this/that/file','.ext').\n\
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Return the pair (root, extension).";
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static char M_sys_makename_doc[] =
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"(path = Blender.Get('filename'), ext = \"\", strip = 0) -\n\
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Strip dir and extension from path, leaving only a name, then append 'ext'\n\
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to it (if given) and return the resulting string.\n\n\
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(path) - string: a pathname -- Blender.Get('filename') if 'path' isn't given;\n\
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(ext = \"\") - string: the extension to append.\n\
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(strip = 0) - int: strip dirname from 'path' if given and non-zero.\n\
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Ex: makename('/path/to/file/myfile.foo','-01.abc') returns 'myfile-01.abc'\n\
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Ex: makename(ext='.txt') returns 'untitled.txt' if Blender.Get('filename')\n\
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returns a path to the file 'untitled.blend'";
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static char M_sys_time_doc[] =
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"() - Return a float representing time elapsed in seconds.\n\
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Each successive call is garanteed to return values greater than or\n\
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equal to the previous call.";
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static char M_sys_sleep_doc[] =
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"(milliseconds = 10) - Sleep for the specified time.\n\
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(milliseconds = 10) - the amount of time in milliseconds to sleep.\n\
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This function can be necessary in tight 'get event' loops.";
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static char M_sys_exists_doc[] =
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"(path) - Check if the given pathname exists.\n\
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The return value is as follows:\n\
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\t 0: path doesn't exist;\n\
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\t 1: path is an existing filename;\n\
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\t 2: path is an existing dirname;\n\
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\t-1: path exists but is neither a regular file nor a dir.";
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static char M_sys_expandpath_doc[] =
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"(path) - Expand this Blender internal path to a proper file system path.\n\
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(path) - the string path to convert.\n\n\
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Note: internally Blender paths can contain two special character sequences:\n\
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- '//' (at start) for base path directory (the current .blend's dir path);\n\
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- '#' (at ending) for current frame number.\n\n\
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This function expands these to their actual content, returning a valid path.\n\
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If the special chars are not found in the given path, it is simply returned.";
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/*****************************************************************************/
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/* Python method structure definition for Blender.sys module: */
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/*****************************************************************************/
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struct PyMethodDef M_sys_methods[] = {
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{"basename", M_sys_basename, METH_O, M_sys_basename_doc},
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{"dirname", M_sys_dirname, METH_O, M_sys_dirname_doc},
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{"join", M_sys_join, METH_VARARGS, M_sys_join_doc},
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{"splitext", M_sys_splitext, METH_O, M_sys_splitext_doc},
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{"makename", ( PyCFunction ) M_sys_makename,
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METH_VARARGS | METH_KEYWORDS,
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M_sys_makename_doc},
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{"exists", M_sys_exists, METH_O, M_sys_exists_doc},
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{"sleep", M_sys_sleep, METH_VARARGS, M_sys_sleep_doc},
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{"time", ( PyCFunction ) M_sys_time, METH_NOARGS, M_sys_time_doc},
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{"expandpath", M_sys_expandpath, METH_O, M_sys_expandpath_doc},
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{NULL, NULL, 0, NULL}
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};
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/* Module Functions */
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static PyObject *g_sysmodule = NULL; /* pointer to Blender.sys module */
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PyObject *sys_Init( void )
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{
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PyObject *submodule, *dict;
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submodule = Py_InitModule3( "Blender.sys", M_sys_methods, M_sys_doc );
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g_sysmodule = submodule;
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dict = PyModule_GetDict( submodule );
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EXPP_dict_set_item_str( dict, "dirsep", PyString_FromString(DIRSEP_STR) );
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EXPP_dict_set_item_str( dict, "sep", PyString_FromString(DIRSEP_STR) );
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return submodule;
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}
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static PyObject *M_sys_basename( PyObject * self, PyObject * value )
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{
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char *name = PyString_AsString(value);
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char *p, basename[FILE_MAXDIR + FILE_MAXFILE];
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int n, len;
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if( !name )
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return EXPP_ReturnPyObjError( PyExc_TypeError,
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"expected string argument" );
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len = strlen( name );
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#ifdef WIN32
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p = MAX2(strrchr( name, '/' ), strrchr( name, '\\' ));
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#else
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p = strrchr( name, DIRSEP );
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#endif
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if( p ) {
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n = name + len - p - 1; /* - 1 because we don't want the sep */
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if( n > FILE_MAXDIR + FILE_MAXFILE )
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return EXPP_ReturnPyObjError( PyExc_RuntimeError,
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"path too long" );
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BLI_strncpy( basename, p + 1, n + 1 );
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return PyString_FromString( basename );
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}
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return PyString_FromString( name );
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}
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static PyObject *M_sys_dirname( PyObject * self, PyObject * value )
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{
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char *name = PyString_AsString(value);
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char *p, dirname[FILE_MAXDIR + FILE_MAXFILE];
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int n;
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if( !name )
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return EXPP_ReturnPyObjError( PyExc_TypeError,
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"expected string argument" );
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#ifdef WIN32
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p = MAX2(strrchr( name, '/' ), strrchr( name, '\\' ));
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#else
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p = strrchr( name, DIRSEP );
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#endif
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if( p ) {
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n = p - name;
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if( n > FILE_MAXDIR + FILE_MAXFILE )
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return EXPP_ReturnPyObjError( PyExc_RuntimeError,
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"path too long" );
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BLI_strncpy( dirname, name, n + 1 );
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return PyString_FromString( dirname );
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}
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return PyString_FromString( "." );
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}
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static PyObject *M_sys_join( PyObject * self, PyObject * args )
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{
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char *name = NULL, *path = NULL;
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char filename[FILE_MAXDIR + FILE_MAXFILE];
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int pathlen = 0, namelen = 0;
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if( !PyArg_ParseTuple( args, "ss", &path, &name ) )
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return EXPP_ReturnPyObjError( PyExc_TypeError,
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"expected string argument" );
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pathlen = strlen( path ) + 1;
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namelen = strlen( name ) + 1; /* + 1 to account for '\0' for BLI_strncpy */
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if( pathlen + namelen > FILE_MAXDIR + FILE_MAXFILE - 1 )
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return EXPP_ReturnPyObjError( PyExc_RuntimeError,
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"filename is too long." );
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BLI_strncpy( filename, path, pathlen );
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if( filename[pathlen - 2] != DIRSEP ) {
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filename[pathlen - 1] = DIRSEP;
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pathlen += 1;
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}
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BLI_strncpy( filename + pathlen - 1, name, namelen );
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return PyString_FromString( filename );
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}
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static PyObject *M_sys_splitext( PyObject * self, PyObject * value )
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{
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char *name = PyString_AsString(value);
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char *dot, *p, path[FILE_MAXDIR + FILE_MAXFILE], ext[FILE_MAXDIR + FILE_MAXFILE];
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int n, len;
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if( !name )
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return EXPP_ReturnPyObjError( PyExc_TypeError,
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"expected string argument" );
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len = strlen( name );
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dot = strrchr( name, '.' );
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if( !dot )
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return Py_BuildValue( "ss", name, "" );
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p = strrchr( name, DIRSEP );
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if( p ) {
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if( p > dot )
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return Py_BuildValue( "ss", name, "" );
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}
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n = name + len - dot;
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/* loong extensions are supported -- foolish, but Python's os.path.splitext
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* supports them, so ... */
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if( n >= FILE_MAXDIR + FILE_MAXFILE || ( len - n ) >= FILE_MAXDIR + FILE_MAXFILE )
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return EXPP_ReturnPyObjError( PyExc_RuntimeError, "path too long" );
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BLI_strncpy( ext, dot, n + 1 );
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BLI_strncpy( path, name, dot - name + 1 );
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return Py_BuildValue( "ss", path, ext );
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}
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static PyObject *M_sys_makename( PyObject * self, PyObject * args,
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PyObject * kw )
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{
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char *path = G.sce, *ext = NULL;
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int strip = 0;
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static char *kwlist[] = { "path", "ext", "strip", NULL };
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char *dot = NULL, *p = NULL, basename[FILE_MAXDIR + FILE_MAXFILE];
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int n, len, lenext = 0;
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if( !PyArg_ParseTupleAndKeywords( args, kw, "|ssi", kwlist,
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&path, &ext, &strip ) )
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return EXPP_ReturnPyObjError( PyExc_TypeError,
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"expected one or two strings and an int (or nothing) as arguments" );
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len = strlen( path ) + 1; /* + 1 to consider ending '\0' */
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if( ext )
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lenext = strlen( ext ) + 1;
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if( ( len + lenext ) > FILE_MAXDIR + FILE_MAXFILE )
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return EXPP_ReturnPyObjError( PyExc_RuntimeError,
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"path too long" );
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p = strrchr( path, DIRSEP );
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if( p && strip ) {
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n = path + len - p;
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BLI_strncpy( basename, p + 1, n ); /* + 1 to skip the sep */
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} else
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BLI_strncpy( basename, path, len );
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dot = strrchr( basename, '.' );
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/* now the extension: always remove the one in basename */
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if( dot || ext ) {
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if( !ext )
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basename[dot - basename] = '\0';
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else { /* if user gave an ext, append it */
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if( dot )
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n = dot - basename;
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else
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n = strlen( basename );
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BLI_strncpy( basename + n, ext, lenext );
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}
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}
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return PyString_FromString( basename );
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}
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static PyObject *M_sys_time( PyObject * self )
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{
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return PyFloat_FromDouble( PIL_check_seconds_timer( ) );
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}
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static PyObject *M_sys_sleep( PyObject * self, PyObject * args )
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{
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int millisecs = 10;
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if( !PyArg_ParseTuple( args, "|i", &millisecs ) )
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return EXPP_ReturnPyObjError( PyExc_TypeError,
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"expected int argument" );
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PIL_sleep_ms( millisecs );
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return EXPP_incr_ret( Py_None );
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}
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static PyObject *M_sys_exists( PyObject * self, PyObject * value )
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{
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char *fname = PyString_AsString(value);
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int mode = 0, i = -1;
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if( !fname )
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return EXPP_ReturnPyObjError( PyExc_TypeError,
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"expected string (pathname) argument" );
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mode = BLI_exist(fname);
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if( mode == 0 )
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i = 0;
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else if( S_ISREG( mode ) )
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i = 1;
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else if( S_ISDIR( mode ) )
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i = 2;
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/* i stays as -1 if path exists but is neither a regular file nor a dir */
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return PyInt_FromLong(i);
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}
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static PyObject *M_sys_expandpath( PyObject * self, PyObject * value )
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{
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char *path = PyString_AsString(value);
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char expanded[FILE_MAXDIR + FILE_MAXFILE];
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if (!path)
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return EXPP_ReturnPyObjError( PyExc_TypeError,
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"expected string argument" );
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BLI_strncpy(expanded, path, FILE_MAXDIR + FILE_MAXFILE);
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BLI_convertstringcode(expanded, G.sce, G.scene->r.cfra);
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return PyString_FromString(expanded);
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}
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