2 * Copyright (C) 2010-2011 Robert Ancell.
3 * Author: Robert Ancell <robert.ancell@canonical.com>
5 * This program is free software: you can redistribute it and/or modify it under
6 * the terms of the GNU General Public License as published by the Free Software
7 * Foundation, either version 3 of the License, or (at your option) any later
8 * version. See http://www.gnu.org/copyleft/gpl.html the full text of the
14 #include "configuration.h"
16 struct ConfigurationPrivate
21 GHashTable *key_sources;
24 G_DEFINE_TYPE (Configuration, config, G_TYPE_OBJECT);
26 static Configuration *configuration_instance = NULL;
29 config_get_instance (void)
31 if (!configuration_instance)
32 configuration_instance = g_object_new (CONFIGURATION_TYPE, NULL);
33 return configuration_instance;
37 config_load_from_file (Configuration *config, const gchar *path, GError **error)
40 gchar *source_path, **groups;
43 source_path = g_strdup (path);
44 config->priv->sources = g_list_append (config->priv->sources, source_path);
46 key_file = g_key_file_new ();
47 if (!g_key_file_load_from_file (key_file, path, G_KEY_FILE_NONE, error))
49 g_key_file_free (key_file);
53 groups = g_key_file_get_groups (key_file, NULL);
54 for (i = 0; groups[i]; i++)
59 keys = g_key_file_get_keys (key_file, groups[i], NULL, error);
63 for (j = 0; keys[j]; j++)
67 value = g_key_file_get_value (key_file, groups[i], keys[j], NULL);
68 g_key_file_set_value (config->priv->key_file, groups[i], keys[j], value);
71 k = g_strdup_printf ("%s]%s", groups[i], keys[j]);
72 g_hash_table_insert (config->priv->key_sources, k, source_path);
79 g_key_file_free (key_file);
85 path_make_absolute (gchar *path)
87 gchar *cwd, *abs_path;
92 if (g_path_is_absolute (path))
95 cwd = g_get_current_dir ();
96 abs_path = g_build_filename (cwd, path, NULL);
103 compare_strings (gconstpointer a, gconstpointer b)
105 return strcmp (a, b);
109 load_config_directory (const gchar *path, GList **messages)
112 GList *files = NULL, *link;
113 GError *error = NULL;
115 /* Find configuration files */
116 dir = g_dir_open (path, 0, &error);
117 if (error && !g_error_matches (error, G_FILE_ERROR, G_FILE_ERROR_NOENT))
118 g_printerr ("Failed to open configuration directory %s: %s\n", path, error->message);
119 g_clear_error (&error);
123 while ((name = g_dir_read_name (dir)))
124 files = g_list_append (files, g_strdup (name));
128 /* Sort alphabetically and load onto existing configuration */
129 files = g_list_sort (files, compare_strings);
130 for (link = files; link; link = link->next)
132 gchar *filename = link->data;
135 conf_path = g_build_filename (path, filename, NULL);
136 if (g_str_has_suffix (filename, ".conf"))
139 *messages = g_list_append (*messages, g_strdup_printf ("Loading configuration from %s", conf_path));
140 config_load_from_file (config_get_instance (), conf_path, &error);
141 if (error && !g_error_matches (error, G_FILE_ERROR, G_FILE_ERROR_NOENT))
142 g_printerr ("Failed to load configuration from %s: %s\n", filename, error->message);
143 g_clear_error (&error);
146 g_debug ("Ignoring configuration file %s, it does not have .conf suffix", conf_path);
149 g_list_free_full (files, g_free);
153 load_config_directories (const gchar * const *dirs, GList **messages)
157 /* Load in reverse order, because XDG_* fields are preference-ordered and the directories in front should override directories in back. */
158 for (i = g_strv_length ((gchar **)dirs) - 1; i >= 0; i--)
160 gchar *full_dir = g_build_filename (dirs[i], "lightdm", "lightdm.conf.d", NULL);
162 *messages = g_list_append (*messages, g_strdup_printf ("Loading configuration dirs from %s", full_dir));
163 load_config_directory (full_dir, messages);
169 config_load_from_standard_locations (Configuration *config, const gchar *config_path, GList **messages)
171 gchar *config_d_dir = NULL;
172 gboolean explicit_config = FALSE;
173 gboolean success = TRUE;
174 GError *error = NULL;
176 load_config_directories (g_get_system_data_dirs (), messages);
177 load_config_directories (g_get_system_config_dirs (), messages);
181 config->priv->dir = path_make_absolute (g_path_get_basename (config_path));
182 explicit_config = TRUE;
186 config->priv->dir = g_strdup (CONFIG_DIR);
187 config_d_dir = g_build_filename (config->priv->dir, "lightdm.conf.d", NULL);
188 config_path = g_build_filename (config->priv->dir, "lightdm.conf", NULL);
192 load_config_directory (config_d_dir, messages);
193 g_free (config_d_dir);
196 *messages = g_list_append (*messages, g_strdup_printf ("Loading configuration from %s", config_path));
197 if (!config_load_from_file (config, config_path, &error))
201 is_empty = error && g_error_matches (error, G_FILE_ERROR, G_FILE_ERROR_NOENT);
203 if (explicit_config || !is_empty)
206 g_printerr ("Failed to load configuration from %s: %s\n", config_path, error->message);
210 g_clear_error (&error);
216 config_get_directory (Configuration *config)
218 return config->priv->dir;
222 config_get_groups (Configuration *config)
224 return g_key_file_get_groups (config->priv->key_file, NULL);
228 config_get_keys (Configuration *config, const gchar *group_name)
230 return g_key_file_get_keys (config->priv->key_file, group_name, NULL, NULL);
234 config_has_key (Configuration *config, const gchar *section, const gchar *key)
236 return g_key_file_has_key (config->priv->key_file, section, key, NULL);
240 config_get_sources (Configuration *config)
242 return config->priv->sources;
246 config_get_source (Configuration *config, const gchar *section, const gchar *key)
251 k = g_strdup_printf ("%s]%s", section, key);
252 source = g_hash_table_lookup (config->priv->key_sources, k);
259 config_set_string (Configuration *config, const gchar *section, const gchar *key, const gchar *value)
261 g_key_file_set_string (config->priv->key_file, section, key, value);
265 config_get_string (Configuration *config, const gchar *section, const gchar *key)
267 return g_key_file_get_string (config->priv->key_file, section, key, NULL);
271 config_set_string_list (Configuration *config, const gchar *section, const gchar *key, const gchar **value, gsize length)
273 g_key_file_set_string_list (config->priv->key_file, section, key, value, length);
277 config_get_string_list (Configuration *config, const gchar *section, const gchar *key)
279 return g_key_file_get_string_list (config->priv->key_file, section, key, NULL, NULL);
283 config_set_integer (Configuration *config, const gchar *section, const gchar *key, gint value)
285 g_key_file_set_integer (config->priv->key_file, section, key, value);
289 config_get_integer (Configuration *config, const gchar *section, const gchar *key)
291 return g_key_file_get_integer (config->priv->key_file, section, key, NULL);
295 config_set_boolean (Configuration *config, const gchar *section, const gchar *key, gboolean value)
297 g_key_file_set_boolean (config->priv->key_file, section, key, value);
301 config_get_boolean (Configuration *config, const gchar *section, const gchar *key)
303 return g_key_file_get_boolean (config->priv->key_file, section, key, NULL);
307 config_init (Configuration *config)
309 config->priv = G_TYPE_INSTANCE_GET_PRIVATE (config, CONFIGURATION_TYPE, ConfigurationPrivate);
310 config->priv->key_file = g_key_file_new ();
311 config->priv->key_sources = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
315 config_finalize (GObject *object)
319 self = CONFIGURATION (object);
321 g_free (self->priv->dir);
322 g_key_file_free (self->priv->key_file);
323 g_list_free_full (self->priv->sources, g_free);
324 g_hash_table_destroy (self->priv->key_sources);
326 G_OBJECT_CLASS (config_parent_class)->finalize (object);
330 config_class_init (ConfigurationClass *klass)
332 GObjectClass *object_class = G_OBJECT_CLASS (klass);
334 object_class->finalize = config_finalize;
336 g_type_class_add_private (klass, sizeof (ConfigurationPrivate));