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
|
/*
* Copyright © 2010 Codethink Limited
*
* 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 2 of the licence, 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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
* Author: Ryan Lortie <desrt@desrt.ca>
*/
unowned Gvdb.Item get_parent (Gvdb.HashTable table, string name) {
unowned Gvdb.Item parent;
int end = 0;
for (int i = 0; name[i] != '\0'; i++) {
if (name[i - 1] == '/') {
end = i;
}
}
var parent_name = name.substring (0, end);
parent = table.lookup (parent_name);
if (parent == null) {
parent = table.insert (parent_name);
parent.set_parent (get_parent (table, parent_name));
}
return parent;
}
Gvdb.HashTable read_directory (string dirname) throws GLib.Error {
var table = new Gvdb.HashTable ();
unowned string? name;
table.insert ("/");
var dir = Dir.open (dirname);
while ((name = dir.read_name ()) != null) {
var filename = Path.build_filename (dirname, name);
var kf = new KeyFile ();
try {
kf.load_from_file (filename, KeyFileFlags.NONE);
} catch (GLib.Error e) {
stderr.printf ("%s: %s\n", filename, e.message);
continue;
}
foreach (var group in kf.get_groups ()) {
if (group.has_prefix ("/") || group.has_suffix ("/") || "//" in group) {
stderr.printf ("%s: ignoring invalid group name: %s\n", filename, group);
continue;
}
foreach (var key in kf.get_keys (group)) {
if ("/" in key) {
stderr.printf ("%s: [%s]: ignoring invalid key name: %s\n", filename, group, key);
continue;
}
var path = "/" + group + "/" + key;
if (table.lookup (path) != null) {
stderr.printf ("%s: [%s]: %s: ignoring duplicate definition of key %s\n",
filename, group, key, path);
continue;
}
var text = kf.get_value (group, key);
try {
var value = Variant.parse (null, text);
unowned Gvdb.Item item = table.insert (path);
item.set_parent (get_parent (table, path));
item.set_value (value);
} catch (VariantParseError e) {
stderr.printf ("%s: [%s]: %s: skipping invalid value: %s (%s)\n",
filename, group, key, text, e.message);
}
}
}
}
return table;
}
void maybe_update_from_directory (string dirname) throws GLib.Error {
Posix.Stat dir_buf;
if (Posix.stat (dirname, out dir_buf) == 0 && Posix.S_ISDIR (dir_buf.st_mode)) {
Posix.Stat file_buf;
var filename = dirname.substring (0, dirname.length - 2);
if (Posix.stat (filename, out file_buf) == 0 && file_buf.st_mtime > dir_buf.st_mtime) {
return;
}
var table = read_directory (dirname);
var fd = Posix.open (filename, Posix.O_WRONLY);
if (fd < 0 && errno != Posix.ENOENT) {
var saved_error = errno;
throw new FileError.FAILED ("Can not open '%s' for replacement: %s", filename, strerror (saved_error));
}
try {
table.write_contents (filename);
if (fd >= 0) {
Posix.write (fd, "\0\0\0\0\0\0\0\0", 8);
}
} finally {
if (fd >= 0) {
Posix.close (fd);
}
}
try {
var system_bus = Bus.get_sync (BusType.SYSTEM);
system_bus.emit_signal (null, "/" + Path.get_basename (filename), "ca.desrt.dconf.Writer", "Notify",
new Variant ("(tsas)", (uint64) 0, "/", new VariantBuilder (STRING_ARRAY)));
flush_the_bus (system_bus);
} catch {
/* if we can't, ... don't. */
}
}
}
void update_all (string dirname) throws GLib.Error {
unowned string? name;
var dir = Dir.open (dirname);
while ((name = dir.read_name ()) != null) {
if (name.has_suffix (".d")) {
try {
maybe_update_from_directory (Path.build_filename (dirname, name));
} catch (GLib.Error e) {
stderr.printf ("%s\n", e.message);
}
}
}
}
void dconf_update (string[] args) {
try {
update_all ("/etc/dconf/db");
} catch (GLib.Error e) {
stderr.printf ("fatal: %s\n", e.message);
}
}
// vim:noet ts=4 sw=4
|
