gimp/libgimpbase/gimpdatafiles.c

223 lines
5.9 KiB
C

/* LIBGIMP - The GIMP Library
* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
*
* Datafiles module copyight (C) 1996 Federico Mena Quintero
* federico@nuclecu.unam.mx
*
* This library is free software: you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <glib-object.h>
#include <glib/gstdio.h>
#ifdef G_OS_WIN32
#include "gimpwin32-io.h"
#endif /* G_OS_WIN32 */
#include "gimpbasetypes.h"
#include "gimpdatafiles.h"
#include "gimpenv.h"
/**
* SECTION: gimpdatafiles
* @title: gimpdatafiles
* @short_description: Functions to handle GIMP data files.
*
* Functions to handle GIMP data files.
**/
static inline gboolean is_script (const gchar *filename);
static inline gboolean is_hidden (const gchar *filename);
/* public functions */
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 (g_ascii_strcasecmp (&filename[name_len - ext_len], extension) == 0);
}
void
gimp_datafiles_read_directories (const gchar *path_str,
GFileTest flags,
GimpDatafileLoaderFunc loader_func,
gpointer user_data)
{
gchar *local_path;
GList *path;
GList *list;
g_return_if_fail (path_str != NULL);
g_return_if_fail (loader_func != NULL);
local_path = g_strdup (path_str);
path = gimp_path_parse (local_path, 16, TRUE, NULL);
for (list = path; list; list = g_list_next (list))
{
const gchar *dirname = list->data;
GDir *dir;
dir = g_dir_open (dirname, 0, NULL);
if (dir)
{
const gchar *dir_ent;
while ((dir_ent = g_dir_read_name (dir)))
{
struct stat filestat;
gchar *filename;
if (is_hidden (dir_ent))
continue;
filename = g_build_filename (dirname, dir_ent, NULL);
if (! g_stat (filename, &filestat))
{
GimpDatafileData file_data;
file_data.filename = filename;
file_data.dirname = dirname;
file_data.basename = dir_ent;
file_data.atime = filestat.st_atime;
file_data.mtime = filestat.st_mtime;
file_data.ctime = filestat.st_ctime;
if (flags & G_FILE_TEST_EXISTS)
{
(* loader_func) (&file_data, user_data);
}
else if ((flags & G_FILE_TEST_IS_REGULAR) &&
S_ISREG (filestat.st_mode))
{
(* loader_func) (&file_data, user_data);
}
else if ((flags & G_FILE_TEST_IS_DIR) &&
S_ISDIR (filestat.st_mode))
{
(* loader_func) (&file_data, user_data);
}
#ifndef G_OS_WIN32
else if ((flags & G_FILE_TEST_IS_SYMLINK) &&
S_ISLNK (filestat.st_mode))
{
(* loader_func) (&file_data, user_data);
}
#endif
else if ((flags & G_FILE_TEST_IS_EXECUTABLE) &&
(((filestat.st_mode & S_IXUSR) &&
!S_ISDIR (filestat.st_mode)) ||
(S_ISREG (filestat.st_mode) &&
is_script (filename))))
{
(* loader_func) (&file_data, user_data);
}
}
g_free (filename);
}
g_dir_close (dir);
}
}
gimp_path_free (path);
g_free (local_path);
}
/* private functions */
static inline gboolean
is_script (const gchar *filename)
{
#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 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_ascii_strcasecmp (ext, exts[i]) == 0)
return TRUE;
i++;
}
#endif /* G_OS_WIN32 */
return FALSE;
}
static inline gboolean
is_hidden (const gchar *filename)
{
/* skip files starting with '.' so we don't try to parse
* stuff like .DS_Store or other metadata storage files
*/
return (filename[0] == '.');
}