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
|
/* the Music Player Daemon (MPD)
* Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com)
* This project's homepage is: 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "directory.h"
#include "utils.h"
#include <assert.h>
#include <string.h>
struct directory *
directory_new(const char *path, struct directory *parent)
{
struct directory *directory;
size_t pathlen = strlen(path);
assert(path != NULL);
assert((*path == 0) == (parent == NULL));
directory = xcalloc(1, sizeof(*directory) -
sizeof(directory->path) + pathlen + 1);
directory->parent = parent;
memcpy(directory->path, path, pathlen + 1);
return directory;
}
void
directory_free(struct directory *directory)
{
dirvec_destroy(&directory->children);
songvec_destroy(&directory->songs);
free(directory);
/* this resets last dir returned */
/*directory_get_path(NULL); */
}
void
directory_prune_empty(struct directory *directory)
{
int i;
struct dirvec *dv = &directory->children;
for (i = dv->nr; --i >= 0; ) {
directory_prune_empty(dv->base[i]);
if (directory_is_empty(dv->base[i]))
dirvec_delete(dv, dv->base[i]);
}
if (!dv->nr)
dirvec_destroy(dv);
}
struct directory *
directory_get_directory(struct directory *directory, const char *name)
{
struct directory *cur = directory;
struct directory *found = NULL;
char *duplicated;
char *locate;
assert(name != NULL);
if (isRootDirectory(name))
return directory;
duplicated = xstrdup(name);
locate = strchr(duplicated, '/');
while (1) {
if (locate)
*locate = '\0';
if (!(found = directory_get_child(cur, duplicated)))
break;
assert(cur == found->parent);
cur = found;
if (!locate)
break;
*locate = '/';
locate = strchr(locate + 1, '/');
}
free(duplicated);
return found;
}
void
directory_sort(struct directory *directory)
{
int i;
struct dirvec *dv = &directory->children;
dirvec_sort(dv);
songvec_sort(&directory->songs);
for (i = dv->nr; --i >= 0; )
directory_sort(dv->base[i]);
}
int
directory_walk(struct directory *directory,
int (*forEachSong)(struct song *, void *),
int (*forEachDir)(struct directory *, void *),
void *data)
{
struct dirvec *dv = &directory->children;
int err = 0;
size_t j;
if (forEachDir && (err = forEachDir(directory, data)) < 0)
return err;
if (forEachSong) {
err = songvec_for_each(&directory->songs, forEachSong, data);
if (err < 0)
return err;
}
for (j = 0; err >= 0 && j < dv->nr; ++j)
err = directory_walk(dv->base[j], forEachSong,
forEachDir, data);
return err;
}
|
