1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
|
#include <dconf.h>
static const gchar *
shift (int *argc, char ***argv)
{
if (argc == 0)
return NULL;
(*argc)--;
return *(*argv)++;
}
static gboolean
grab_args (int argc,
char **argv,
const gchar *description,
GError **error,
gint num,
...)
{
va_list ap;
if (argc != num)
{
g_set_error (error, G_OPTION_ERROR, G_OPTION_ERROR_FAILED,
"require exactly %d arguments: %s", num, description);
return FALSE;
}
va_start (ap, num);
while (num--)
*va_arg (ap, gchar **) = *argv++;
va_end (ap);
return TRUE;
}
static gboolean
ensure (const gchar *type,
const gchar *string,
gboolean (*checker) (const gchar *string),
GError **error)
{
if (!checker (string))
{
g_set_error (error, G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE,
"'%s' is not a dconf %s", string, type);
return FALSE;
}
return TRUE;
}
static void
write_done (GObject *object,
GAsyncResult *result,
gpointer user_data)
{
GError *error = NULL;
if (!dconf_client_write_finish (DCONF_CLIENT (object), result, NULL, &error))
g_error ("%s\n", error->message);
g_print ("done\n");
}
static void
do_async_command (DConfClient *client,
int argc,
char **argv)
{
const gchar *cmd;
cmd = shift (&argc, &argv);
if (g_strcmp0 (cmd, "write") == 0)
{
const gchar *key, *strval;
GVariant *value;
if (!grab_args (argc, argv, "key and value", NULL, 2, &key, &strval))
g_assert_not_reached ();
if (!ensure ("key", key, dconf_is_key, NULL))
g_assert_not_reached ();
value = g_variant_parse (NULL, strval, NULL, NULL, NULL);
g_assert (value != NULL);
return dconf_client_write_async (client, key, value,
NULL, write_done, NULL);
}
}
static gboolean
do_sync_command (DConfClient *client,
int argc,
char **argv,
GError **error)
{
const gchar *cmd;
cmd = shift (&argc, &argv);
if (g_strcmp0 (cmd, "async") == 0)
{
do_async_command (client, argc, argv);
g_main_loop_run (g_main_loop_new (NULL, FALSE));
return TRUE;
}
else if (g_strcmp0 (cmd, "read") == 0)
{
const gchar *key;
GVariant *value;
gchar *printed;
if (!grab_args (argc, argv, "key", error, 1, &key))
return FALSE;
if (!ensure ("key", key, dconf_is_key, error))
return FALSE;
value = dconf_client_read (client, key, DCONF_READ_NORMAL);
if (value == NULL)
return TRUE;
printed = g_variant_print (value, TRUE);
g_print ("%s\n", printed);
g_variant_unref (value);
g_free (printed);
return TRUE;
}
else if (g_strcmp0 (cmd, "write") == 0)
{
const gchar *key, *strval;
GVariant *value;
if (!grab_args (argc, argv, "key and value", error, 2, &key, &strval))
return FALSE;
if (!ensure ("key", key, dconf_is_key, error))
return FALSE;
value = g_variant_parse (NULL, strval, NULL, NULL, error);
if (value == NULL)
return FALSE;
return dconf_client_write (client, key, value, NULL, NULL, error);
}
else if (g_strcmp0 (cmd, "write-many") == 0)
{
g_assert_not_reached ();
}
else if (g_strcmp0 (cmd, "list") == 0)
{
const gchar *dir;
gchar **list;
if (!grab_args (argc, argv, "dir", error, 1, &dir))
return FALSE;
if (!ensure ("dir", dir, dconf_is_dir, error))
return FALSE;
list = dconf_client_list (client, dir, NULL);
while (*list)
g_print ("%s\n", *list++);
return TRUE;
}
else if (g_strcmp0 (cmd, "lock") == 0)
{
const gchar *path;
if (!grab_args (argc, argv, "path", error, 1, &path))
return FALSE;
if (!ensure ("path", path, dconf_is_path, error))
return FALSE;
return dconf_client_set_locked (client, path, TRUE, NULL, NULL);
}
else if (g_strcmp0 (cmd, "unlock") == 0)
{
const gchar *path;
if (!grab_args (argc, argv, "path", error, 1, &path))
return FALSE;
if (!ensure ("path", path, dconf_is_path, error))
return FALSE;
return dconf_client_set_locked (client, path, FALSE, NULL, NULL);
}
else if (g_strcmp0 (cmd, "is-writable") == 0)
{
const gchar *path;
if (!grab_args (argc, argv, "path", error, 1, &path))
return FALSE;
if (!ensure ("path", path, dconf_is_path, error))
return FALSE;
return dconf_client_is_writable (client, path, error);
}
else
{
g_set_error (error, 0, 0, "unknown command");
return FALSE;
}
}
int
main (int argc, char **argv)
{
GError *error = NULL;
DConfClient *client;
g_type_init ();
g_set_prgname (shift (&argc, &argv));
client = dconf_client_new (NULL, NULL, NULL, NULL);
if (!do_sync_command (client, argc, argv, &error))
g_error ("%s\n", error->message);
return 0;
}
|
