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
|
/*
* Copyright (C) 2003-2009 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "directory_save.h"
#include "directory.h"
#include "song.h"
#include "path.h"
#include "song_save.h"
#include <assert.h>
#include <string.h>
#define DIRECTORY_MTIME "mtime: "
#define DIRECTORY_BEGIN "begin: "
#define DIRECTORY_END "end: "
/**
* The quark used for GError.domain.
*/
static inline GQuark
directory_quark(void)
{
return g_quark_from_static_string("directory");
}
/* TODO error checking */
int
directory_save(FILE *fp, struct directory *directory)
{
struct dirvec *children = &directory->children;
size_t i;
int retv;
if (!directory_is_root(directory)) {
fprintf(fp, DIRECTORY_MTIME "%lu\n",
(unsigned long)directory->mtime);
retv = fprintf(fp, "%s%s\n", DIRECTORY_BEGIN,
directory_get_path(directory));
if (retv < 0)
return -1;
}
for (i = 0; i < children->nr; ++i) {
struct directory *cur = children->base[i];
char *base = g_path_get_basename(cur->path);
retv = fprintf(fp, DIRECTORY_DIR "%s\n", base);
g_free(base);
if (retv < 0)
return -1;
if (directory_save(fp, cur) < 0)
return -1;
}
songvec_save(fp, &directory->songs);
if (!directory_is_root(directory) &&
fprintf(fp, DIRECTORY_END "%s\n",
directory_get_path(directory)) < 0)
return -1;
return 0;
}
bool
directory_load(FILE *fp, struct directory *directory, GError **error)
{
char buffer[MPD_PATH_MAX * 2];
char key[MPD_PATH_MAX * 2];
char *name;
bool success;
while (fgets(buffer, sizeof(buffer), fp)
&& !g_str_has_prefix(buffer, DIRECTORY_END)) {
if (g_str_has_prefix(buffer, DIRECTORY_DIR)) {
struct directory *subdir;
g_strchomp(buffer);
strcpy(key, &(buffer[strlen(DIRECTORY_DIR)]));
if (!fgets(buffer, sizeof(buffer), fp)) {
g_set_error(error, directory_quark(), 0,
"Unexpected end of file");
return false;
}
if (g_str_has_prefix(buffer, DIRECTORY_MTIME)) {
directory->mtime =
g_ascii_strtoull(buffer + sizeof(DIRECTORY_MTIME) - 1,
NULL, 10);
if (!fgets(buffer, sizeof(buffer), fp)) {
g_set_error(error, directory_quark(), 0,
"Unexpected end of file");
return false;
}
}
if (!g_str_has_prefix(buffer, DIRECTORY_BEGIN)) {
g_set_error(error, directory_quark(), 0,
"Malformed line: %s", buffer);
return false;
}
g_strchomp(buffer);
name = &(buffer[strlen(DIRECTORY_BEGIN)]);
if (!g_str_has_prefix(name, directory->path) != 0) {
g_set_error(error, directory_quark(), 0,
"Wrong path in database: '%s' in '%s'",
name, directory->path);
return false;
}
subdir = directory_get_child(directory, name);
if (subdir != NULL) {
assert(subdir->parent == directory);
} else {
subdir = directory_new(name, directory);
dirvec_add(&directory->children, subdir);
}
success = directory_load(fp, subdir, error);
if (!success)
return false;
} else if (g_str_has_prefix(buffer, SONG_BEGIN)) {
success = songvec_load(fp, &directory->songs,
directory, error);
if (!success)
return false;
} else {
g_set_error(error, directory_quark(), 0,
"Malformed line: %s", buffer);
return false;
}
}
return true;
}
|
