gimp/app/datafiles.c

196 lines
4.1 KiB
C

/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* Datafiles module copyight (C) 1996 Federico Mena Quintero
* federico@nuclecu.unam.mx
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 "config.h"
#include <glib.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_DIRENT_H
#include <dirent.h>
#endif
#ifdef G_OS_WIN32
#ifndef S_ISDIR
#define S_ISDIR(m) (((m) & _S_IFMT) == _S_IFDIR)
#define S_ISREG(m) (((m) & _S_IFMT) == _S_IFREG)
#endif
#ifndef S_IXUSR
#define S_IXUSR _S_IEXEC
#endif
#endif /* G_OS_WIN32 */
#include "datafiles.h"
#include "gimprc.h"
#include "libgimp/gimpenv.h"
/***** Functions *****/
static gboolean filestat_valid = FALSE;
static struct stat filestat;
#ifdef G_OS_WIN32
/*
* On Windows there is no concept like the Unix executable flag.
* There is a weak emulation provided by the MS C Runtime using file
* extensions (com, exe, cmd, bat). This needs to be extended to treat
* scripts (Python, Perl, ...) as executables, too. We use the PATHEXT
* variable, which is also used by cmd.exe.
*/
static gboolean
is_script (const gchar *filename)
{
const gchar *ext = strrchr (filename, '.');
gchar *pathext;
static gchar **exts = NULL;
gint i;
if (exts == NULL)
{
pathext = g_getenv ("PATHEXT");
if (pathext != NULL)
{
exts = g_strsplit (pathext, G_SEARCHPATH_SEPARATOR_S, 100);
}
else
{
exts = g_new (gchar *, 1);
exts[0] = NULL;
}
}
i = 0;
while (exts[i] != NULL)
{
if (g_strcasecmp (ext, exts[i]) == 0)
return TRUE;
i++;
}
return FALSE;
}
#else /* !G_OS_WIN32 */
#define is_script(filename) FALSE
#endif
void
datafiles_read_directories (gchar *path_str,
GimpDataFileLoaderFunc loader_func,
GimpDataFileFlags flags)
{
gchar *local_path;
GList *path;
GList *list;
gchar *filename;
gint err;
DIR *dir;
struct dirent *dir_ent;
if (path_str == NULL)
return;
local_path = g_strdup (path_str);
#ifdef __EMX__
/*
* Change drive so opendir works.
*/
if (local_path[1] == ':')
{
_chdrive (local_path[0]);
}
#endif
path = gimp_path_parse (local_path, 16, TRUE, NULL);
for (list = path; list; list = g_list_next (list))
{
/* Open directory */
dir = opendir ((gchar *) list->data);
if (!dir)
{
g_message ("error reading datafiles directory \"%s\"",
(gchar *) list->data);
}
else
{
while ((dir_ent = readdir (dir)))
{
filename = g_strdup_printf ("%s%s",
(gchar *) list->data,
dir_ent->d_name);
/* Check the file and see that it is not a sub-directory */
err = stat (filename, &filestat);
if (!err && S_ISREG (filestat.st_mode) &&
(!(flags & MODE_EXECUTABLE) ||
(filestat.st_mode & S_IXUSR) ||
is_script (filename)))
{
filestat_valid = TRUE;
(*loader_func) (filename);
filestat_valid = FALSE;
}
g_free (filename);
}
closedir (dir);
}
}
gimp_path_free (path);
g_free (local_path);
}
time_t
datafile_atime (void)
{
if (filestat_valid)
return filestat.st_atime;
return 0;
}
time_t
datafile_mtime (void)
{
if (filestat_valid)
return filestat.st_mtime;
return 0;
}
time_t
datafile_ctime (void)
{
if (filestat_valid)
return filestat.st_ctime;
return 0;
}