gimp/libgimpbase/gimpdatafiles.c

227 lines
4.9 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 <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <glib-object.h>
#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 "libgimpbase/gimpbase.h"
#include "core-types.h"
#include "gimpdatafiles.h"
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)
{
static gchar **exts = NULL;
const gchar *ext = strrchr (filename, '.');
gchar *pathext;
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
gboolean
gimp_datafiles_check_extension (const gchar *filename,
const gchar *extension)
{
gint name_len;
gint ext_len;
g_return_val_if_fail (filename != NULL, FALSE);
g_return_val_if_fail (extension != NULL, FALSE);
name_len = strlen (filename);
ext_len = strlen (extension);
if (! (name_len && ext_len && (name_len > ext_len)))
return FALSE;
return (strcmp (&filename[name_len - ext_len], extension) == 0);
}
void
gimp_datafiles_read_directories (const gchar *path_str,
GimpDataFileFlags flags,
GimpDataFileLoaderFunc loader_func,
gpointer loader_data)
{
gchar *local_path;
GList *path;
GList *list;
gchar *filename;
gint err;
GDir *dir;
const gchar *dir_ent;
g_return_if_fail (path_str != NULL);
g_return_if_fail (loader_func != NULL);
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 = g_dir_open ((gchar *) list->data, 0, NULL);
if (!dir)
{
g_message ("error reading datafiles directory \"%s\"",
(gchar *) list->data);
}
else
{
while ((dir_ent = g_dir_read_name (dir)))
{
filename = g_build_filename ((gchar *) list->data,
dir_ent, NULL);
/* Check the file and see that it is not a sub-directory */
err = stat (filename, &filestat);
if (! err)
{
filestat_valid = TRUE;
if (S_ISDIR (filestat.st_mode) && (flags & TYPE_DIRECTORY))
{
(* loader_func) (filename, loader_data);
}
else if (S_ISREG (filestat.st_mode) &&
(!(flags & MODE_EXECUTABLE) ||
(filestat.st_mode & S_IXUSR) ||
is_script (filename)))
{
(* loader_func) (filename, loader_data);
}
filestat_valid = FALSE;
}
g_free (filename);
}
g_dir_close (dir);
}
}
gimp_path_free (path);
g_free (local_path);
}
time_t
gimp_datafile_atime (void)
{
if (filestat_valid)
return filestat.st_atime;
return 0;
}
time_t
gimp_datafile_mtime (void)
{
if (filestat_valid)
return filestat.st_mtime;
return 0;
}
time_t
gimp_datafile_ctime (void)
{
if (filestat_valid)
return filestat.st_ctime;
return 0;
}