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
|
/*
* Copyright (C) the libgit2 contributors. All rights reserved.
*
* This file is part of libgit2, distributed under the GNU GPL v2 with
* a Linking Exception. For full terms see the included COPYING file.
*/
#include "common.h"
#include "posix.h"
#include "git2/object.h"
#include "git2/refs.h"
#include "git2/refdb.h"
#include "git2/sys/refdb_backend.h"
#include "hash.h"
#include "refdb.h"
#include "refs.h"
int git_refdb_new(git_refdb **out, git_repository *repo)
{
git_refdb *db;
assert(out && repo);
db = git__calloc(1, sizeof(*db));
GITERR_CHECK_ALLOC(db);
db->repo = repo;
*out = db;
GIT_REFCOUNT_INC(db);
return 0;
}
int git_refdb_open(git_refdb **out, git_repository *repo)
{
git_refdb *db;
git_refdb_backend *dir;
assert(out && repo);
*out = NULL;
if (git_refdb_new(&db, repo) < 0)
return -1;
/* Add the default (filesystem) backend */
if (git_refdb_backend_fs(&dir, repo) < 0) {
git_refdb_free(db);
return -1;
}
db->repo = repo;
db->backend = dir;
*out = db;
return 0;
}
static void refdb_free_backend(git_refdb *db)
{
if (db->backend) {
if (db->backend->free)
db->backend->free(db->backend);
else
git__free(db->backend);
}
}
int git_refdb_set_backend(git_refdb *db, git_refdb_backend *backend)
{
refdb_free_backend(db);
db->backend = backend;
return 0;
}
int git_refdb_compress(git_refdb *db)
{
assert(db);
if (db->backend->compress)
return db->backend->compress(db->backend);
return 0;
}
void git_refdb__free(git_refdb *db)
{
refdb_free_backend(db);
git__memzero(db, sizeof(*db));
git__free(db);
}
void git_refdb_free(git_refdb *db)
{
if (db == NULL)
return;
GIT_REFCOUNT_DEC(db, git_refdb__free);
}
int git_refdb_exists(int *exists, git_refdb *refdb, const char *ref_name)
{
assert(exists && refdb && refdb->backend);
return refdb->backend->exists(exists, refdb->backend, ref_name);
}
int git_refdb_lookup(git_reference **out, git_refdb *db, const char *ref_name)
{
git_reference *ref;
int error;
assert(db && db->backend && out && ref_name);
error = db->backend->lookup(&ref, db->backend, ref_name);
if (error < 0)
return error;
GIT_REFCOUNT_INC(db);
ref->db = db;
*out = ref;
return 0;
}
int git_refdb_iterator(git_reference_iterator **out, git_refdb *db, const char *glob)
{
if (!db->backend || !db->backend->iterator) {
giterr_set(GITERR_REFERENCE, "This backend doesn't support iterators");
return -1;
}
if (db->backend->iterator(out, db->backend, glob) < 0)
return -1;
GIT_REFCOUNT_INC(db);
(*out)->db = db;
return 0;
}
int git_refdb_iterator_next(git_reference **out, git_reference_iterator *iter)
{
int error;
if ((error = iter->next(out, iter)) < 0)
return error;
GIT_REFCOUNT_INC(iter->db);
(*out)->db = iter->db;
return 0;
}
int git_refdb_iterator_next_name(const char **out, git_reference_iterator *iter)
{
return iter->next_name(out, iter);
}
void git_refdb_iterator_free(git_reference_iterator *iter)
{
GIT_REFCOUNT_DEC(iter->db, git_refdb__free);
iter->free(iter);
}
int git_refdb_write(git_refdb *db, git_reference *ref, int force)
{
assert(db && db->backend);
GIT_REFCOUNT_INC(db);
ref->db = db;
return db->backend->write(db->backend, ref, force);
}
int git_refdb_rename(
git_reference **out,
git_refdb *db,
const char *old_name,
const char *new_name,
int force)
{
int error;
assert(db && db->backend);
error = db->backend->rename(out, db->backend, old_name, new_name, force);
if (error < 0)
return error;
if (out) {
GIT_REFCOUNT_INC(db);
(*out)->db = db;
}
return 0;
}
int git_refdb_delete(struct git_refdb *db, const char *ref_name)
{
assert(db && db->backend);
return db->backend->delete(db->backend, ref_name);
}
|
