mirror of https://github.com/MidnightCommander/mc
288 lines
8.4 KiB
C
288 lines
8.4 KiB
C
/*
|
|
Configure module for the Midnight Commander
|
|
|
|
Copyright (C) 1994-2024
|
|
Free Software Foundation, Inc.
|
|
|
|
This file is part of the Midnight Commander.
|
|
|
|
The Midnight Commander 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.
|
|
|
|
The Midnight Commander 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, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <config.h>
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <unistd.h>
|
|
#include <errno.h> /* extern int errno */
|
|
|
|
#include "lib/global.h"
|
|
#include "lib/vfs/vfs.h" /* mc_stat */
|
|
#include "lib/util.h"
|
|
|
|
#include "lib/mcconfig.h"
|
|
|
|
/*** global variables ****************************************************************************/
|
|
|
|
/*** file scope macro definitions ****************************************************************/
|
|
|
|
/*** file scope type declarations ****************************************************************/
|
|
|
|
/*** forward declarations (file scope functions) *************************************************/
|
|
|
|
/*** file scope variables ************************************************************************/
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
/*** file scope functions ************************************************************************/
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
static gboolean
|
|
mc_config_new_or_override_file (mc_config_t *mc_config, const gchar *ini_path, GError **mcerror)
|
|
{
|
|
gchar *data, *written_data;
|
|
gsize len, total_written;
|
|
gboolean ret;
|
|
int fd;
|
|
ssize_t cur_written;
|
|
vfs_path_t *ini_vpath;
|
|
|
|
mc_return_val_if_error (mcerror, FALSE);
|
|
|
|
data = g_key_file_to_data (mc_config->handle, &len, NULL);
|
|
if (!exist_file (ini_path))
|
|
{
|
|
ret = g_file_set_contents (ini_path, data, len, mcerror);
|
|
g_free (data);
|
|
return ret;
|
|
}
|
|
|
|
mc_util_make_backup_if_possible (ini_path, "~");
|
|
|
|
ini_vpath = vfs_path_from_str (ini_path);
|
|
fd = mc_open (ini_vpath, O_WRONLY | O_TRUNC, 0);
|
|
vfs_path_free (ini_vpath, TRUE);
|
|
|
|
if (fd == -1)
|
|
{
|
|
mc_propagate_error (mcerror, 0, "%s", unix_error_string (errno));
|
|
g_free (data);
|
|
return FALSE;
|
|
}
|
|
|
|
for (written_data = data, total_written = len;
|
|
(cur_written = mc_write (fd, (const void *) written_data, total_written)) > 0;
|
|
written_data += cur_written, total_written -= cur_written)
|
|
;
|
|
|
|
mc_close (fd);
|
|
g_free (data);
|
|
|
|
if (cur_written == -1)
|
|
{
|
|
mc_util_restore_from_backup_if_possible (ini_path, "~");
|
|
mc_propagate_error (mcerror, 0, "%s", unix_error_string (errno));
|
|
return FALSE;
|
|
}
|
|
|
|
mc_util_unlink_backup_if_possible (ini_path, "~");
|
|
return TRUE;
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
/*** public functions ****************************************************************************/
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
mc_config_t *
|
|
mc_config_init (const gchar *ini_path, gboolean read_only)
|
|
{
|
|
mc_config_t *mc_config;
|
|
struct stat st;
|
|
|
|
mc_config = g_try_malloc0 (sizeof (mc_config_t));
|
|
if (mc_config == NULL)
|
|
return NULL;
|
|
|
|
mc_config->handle = g_key_file_new ();
|
|
if (mc_config->handle == NULL)
|
|
{
|
|
g_free (mc_config);
|
|
return NULL;
|
|
}
|
|
|
|
if (ini_path == NULL)
|
|
return mc_config;
|
|
|
|
if (exist_file (ini_path))
|
|
{
|
|
vfs_path_t *vpath;
|
|
|
|
vpath = vfs_path_from_str (ini_path);
|
|
if (mc_stat (vpath, &st) == 0 && st.st_size != 0)
|
|
{
|
|
GKeyFileFlags flags = G_KEY_FILE_NONE;
|
|
|
|
if (!read_only)
|
|
flags |= G_KEY_FILE_KEEP_COMMENTS;
|
|
|
|
/* file exists and not empty */
|
|
g_key_file_load_from_file (mc_config->handle, ini_path, flags, NULL);
|
|
}
|
|
vfs_path_free (vpath, TRUE);
|
|
}
|
|
|
|
mc_config->ini_path = g_strdup (ini_path);
|
|
return mc_config;
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
void
|
|
mc_config_deinit (mc_config_t *mc_config)
|
|
{
|
|
if (mc_config != NULL)
|
|
{
|
|
g_free (mc_config->ini_path);
|
|
g_key_file_free (mc_config->handle);
|
|
g_free (mc_config);
|
|
}
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
gboolean
|
|
mc_config_has_param (const mc_config_t *mc_config, const char *group, const gchar *param)
|
|
{
|
|
char *value;
|
|
gboolean ret;
|
|
|
|
g_return_val_if_fail (mc_config != NULL, FALSE);
|
|
|
|
value = g_key_file_get_value (mc_config->handle, group, param, NULL);
|
|
ret = value != NULL;
|
|
g_free (value);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
gboolean
|
|
mc_config_has_group (mc_config_t *mc_config, const char *group)
|
|
{
|
|
if (mc_config == NULL || group == NULL)
|
|
return FALSE;
|
|
|
|
return g_key_file_has_group (mc_config->handle, group);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
gboolean
|
|
mc_config_del_key (mc_config_t *mc_config, const char *group, const gchar *param)
|
|
{
|
|
if (mc_config == NULL || group == NULL || param == NULL)
|
|
return FALSE;
|
|
|
|
return g_key_file_remove_key (mc_config->handle, group, param, NULL);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
gboolean
|
|
mc_config_del_group (mc_config_t *mc_config, const char *group)
|
|
{
|
|
if (mc_config == NULL || group == NULL)
|
|
return FALSE;
|
|
|
|
return g_key_file_remove_group (mc_config->handle, group, NULL);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
gboolean
|
|
mc_config_read_file (mc_config_t *mc_config, const gchar *ini_path, gboolean read_only,
|
|
gboolean remove_empty)
|
|
{
|
|
mc_config_t *tmp_config;
|
|
gchar **groups, **curr_grp;
|
|
gchar *value;
|
|
gboolean ok;
|
|
|
|
if (mc_config == NULL)
|
|
return FALSE;
|
|
|
|
tmp_config = mc_config_init (ini_path, read_only);
|
|
if (tmp_config == NULL)
|
|
return FALSE;
|
|
|
|
groups = mc_config_get_groups (tmp_config, NULL);
|
|
ok = (*groups != NULL);
|
|
|
|
for (curr_grp = groups; *curr_grp != NULL; curr_grp++)
|
|
{
|
|
gchar **keys, **curr_key;
|
|
|
|
keys = mc_config_get_keys (tmp_config, *curr_grp, NULL);
|
|
|
|
for (curr_key = keys; *curr_key != NULL; curr_key++)
|
|
{
|
|
value = g_key_file_get_value (tmp_config->handle, *curr_grp, *curr_key, NULL);
|
|
if (value != NULL)
|
|
{
|
|
if (*value == '\0' && remove_empty)
|
|
g_key_file_remove_key (mc_config->handle, *curr_grp, *curr_key, NULL);
|
|
else
|
|
g_key_file_set_value (mc_config->handle, *curr_grp, *curr_key, value);
|
|
g_free (value);
|
|
}
|
|
else if (remove_empty)
|
|
g_key_file_remove_key (mc_config->handle, *curr_grp, *curr_key, NULL);
|
|
}
|
|
g_strfreev (keys);
|
|
}
|
|
|
|
g_strfreev (groups);
|
|
mc_config_deinit (tmp_config);
|
|
|
|
return ok;
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
gboolean
|
|
mc_config_save_file (mc_config_t *mc_config, GError **mcerror)
|
|
{
|
|
mc_return_val_if_error (mcerror, FALSE);
|
|
|
|
if (mc_config == NULL || mc_config->ini_path == NULL)
|
|
return FALSE;
|
|
|
|
return mc_config_new_or_override_file (mc_config, mc_config->ini_path, mcerror);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
gboolean
|
|
mc_config_save_to_file (mc_config_t *mc_config, const gchar *ini_path, GError **mcerror)
|
|
{
|
|
mc_return_val_if_error (mcerror, FALSE);
|
|
|
|
if (mc_config == NULL)
|
|
return FALSE;
|
|
|
|
return mc_config_new_or_override_file (mc_config, ini_path, mcerror);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|