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
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
|
/*
* 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 "refdb.h"
#include "git2/object.h"
#include "git2/refs.h"
#include "git2/refdb.h"
#include "git2/sys/refdb_backend.h"
#include "hash.h"
#include "refs.h"
#include "reflog.h"
#include "posix.h"
int git_refdb_new(git_refdb **out, git_repository *repo)
{
git_refdb *db;
assert(out && repo);
db = git__calloc(1, sizeof(*db));
GIT_ERROR_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)
db->backend->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)
{
int error;
if (!db->backend || !db->backend->iterator) {
git_error_set(GIT_ERROR_REFERENCE, "this backend doesn't support iterators");
return -1;
}
if ((error = db->backend->iterator(out, db->backend, glob)) < 0)
return error;
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, const git_signature *who, const char *message, const git_oid *old_id, const char *old_target)
{
assert(db && db->backend);
GIT_REFCOUNT_INC(db);
ref->db = db;
return db->backend->write(db->backend, ref, force, who, message, old_id, old_target);
}
int git_refdb_rename(
git_reference **out,
git_refdb *db,
const char *old_name,
const char *new_name,
int force,
const git_signature *who,
const char *message)
{
int error;
assert(db && db->backend);
error = db->backend->rename(out, db->backend, old_name, new_name, force, who, message);
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, const git_oid *old_id, const char *old_target)
{
assert(db && db->backend);
return db->backend->del(db->backend, ref_name, old_id, old_target);
}
int git_refdb_reflog_read(git_reflog **out, git_refdb *db, const char *name)
{
int error;
assert(db && db->backend);
if ((error = db->backend->reflog_read(out, db->backend, name)) < 0)
return error;
GIT_REFCOUNT_INC(db);
(*out)->db = db;
return 0;
}
int git_refdb_has_log(git_refdb *db, const char *refname)
{
assert(db && refname);
return db->backend->has_log(db->backend, refname);
}
int git_refdb_ensure_log(git_refdb *db, const char *refname)
{
assert(db && refname);
return db->backend->ensure_log(db->backend, refname);
}
int git_refdb_init_backend(git_refdb_backend *backend, unsigned int version)
{
GIT_INIT_STRUCTURE_FROM_TEMPLATE(
backend, version, git_refdb_backend, GIT_REFDB_BACKEND_INIT);
return 0;
}
int git_refdb_lock(void **payload, git_refdb *db, const char *refname)
{
assert(payload && db && refname);
if (!db->backend->lock) {
git_error_set(GIT_ERROR_REFERENCE, "backend does not support locking");
return -1;
}
return db->backend->lock(payload, db->backend, refname);
}
int git_refdb_unlock(git_refdb *db, void *payload, int success, int update_reflog, const git_reference *ref, const git_signature *sig, const char *message)
{
assert(db);
return db->backend->unlock(db->backend, payload, success, update_reflog, ref, sig, message);
}
|