/*
Configure module for the Midnight Commander
Copyright (C) 1994-2019
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 .
*/
#include
#include
#include
#include
#include /* 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 **************************************/
/*** 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);
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);
}
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)
{
if (!mc_config || !group || !param)
return FALSE;
return g_key_file_has_key (mc_config->handle, group, param, NULL);
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
gboolean
mc_config_has_group (mc_config_t * mc_config, const char *group)
{
if (!mc_config || !group)
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 || !group || !param)
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 || !group)
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);
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */