freshlybakedca.ke
Git fork
hash-ll.h: split out of hash.h to remove dependency on repository.h
hash.h depends upon and includes repository.h, due to the definition and
use of the_hash_algo (defined as the_repository->hash_algo). However,
most headers trying to include hash.h are only interested in the layout
of the structs like object_id. Move the parts of hash.h that do not
depend upon repository.h into a new file hash-ll.h (the "low level"
parts of hash.h), and adjust other files to use this new header where
the convenience inline functions aren't needed.
This allows hash.h and object.h to be fairly small, minimal headers. It
also exposes a lot of hidden dependencies on both path.h (which was
brought in by repository.h) and repository.h (which was previously
implicitly brought in by object.h), so also adjust other files to be
more explicit about what they depend upon.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
authored by
Elijah Newren
and committed by
Junio C Hamano
d1cbe1e6
23a517e4
+1
alloc.c
+1
alloc.c
+1
-1
apply.h
+1
-1
apply.h
+1
branch.c
+1
branch.c
+1
builtin/apply.c
+1
builtin/apply.c
+1
builtin/archive.c
+1
builtin/archive.c
+1
builtin/bundle.c
+1
builtin/bundle.c
+1
builtin/check-attr.c
+1
builtin/check-attr.c
+1
builtin/check-ignore.c
+1
builtin/check-ignore.c
+1
builtin/checkout-index.c
+1
builtin/checkout-index.c
+1
builtin/clean.c
+1
builtin/clean.c
+1
builtin/config.c
+1
builtin/config.c
+1
builtin/credential-cache.c
+1
builtin/credential-cache.c
+1
builtin/credential-store.c
+1
builtin/credential-store.c
+2
builtin/for-each-repo.c
+2
builtin/for-each-repo.c
+1
builtin/help.c
+1
builtin/help.c
+1
builtin/init-db.c
+1
builtin/init-db.c
+1
builtin/merge-index.c
+1
builtin/merge-index.c
+2
builtin/merge-recursive.c
+2
builtin/merge-recursive.c
···
3
3
#include "advice.h"
4
4
#include "commit.h"
5
5
#include "gettext.h"
6
+
#include "hash.h"
6
7
#include "tag.h"
7
8
#include "merge-recursive.h"
8
9
#include "object-name.h"
10
+
#include "repository.h"
9
11
#include "xdiff-interface.h"
10
12
11
13
static const char builtin_merge_recursive_usage[] =
+1
builtin/mv.c
+1
builtin/mv.c
+1
builtin/push.c
+1
builtin/push.c
+1
builtin/read-tree.c
+1
builtin/read-tree.c
+1
builtin/rerere.c
+1
builtin/rerere.c
+2
builtin/rm.c
+2
builtin/rm.c
···
12
12
#include "dir.h"
13
13
#include "cache-tree.h"
14
14
#include "gettext.h"
15
+
#include "hash.h"
15
16
#include "tree-walk.h"
16
17
#include "object-name.h"
17
18
#include "parse-options.h"
19
+
#include "repository.h"
18
20
#include "string-list.h"
19
21
#include "setup.h"
20
22
#include "submodule.h"
+2
builtin/show-branch.c
+2
builtin/show-branch.c
···
2
2
#include "config.h"
3
3
#include "environment.h"
4
4
#include "gettext.h"
5
+
#include "hash.h"
5
6
#include "hex.h"
6
7
#include "pretty.h"
7
8
#include "refs.h"
···
10
11
#include "strvec.h"
11
12
#include "object-name.h"
12
13
#include "parse-options.h"
14
+
#include "repository.h"
13
15
#include "dir.h"
14
16
#include "commit-slab.h"
15
17
#include "date.h"
+2
builtin/show-index.c
+2
builtin/show-index.c
···
1
1
#include "builtin.h"
2
2
#include "cache.h"
3
3
#include "gettext.h"
4
+
#include "hash.h"
4
5
#include "hex.h"
5
6
#include "pack.h"
6
7
#include "parse-options.h"
8
+
#include "repository.h"
7
9
8
10
static const char *const show_index_usage[] = {
9
11
"git show-index [--object-format=<hash-algorithm>]",
+2
builtin/update-index.c
+2
builtin/update-index.c
···
9
9
#include "config.h"
10
10
#include "environment.h"
11
11
#include "gettext.h"
12
+
#include "hash.h"
12
13
#include "hex.h"
13
14
#include "lockfile.h"
14
15
#include "quote.h"
···
21
22
#include "parse-options.h"
22
23
#include "pathspec.h"
23
24
#include "dir.h"
25
+
#include "repository.h"
24
26
#include "setup.h"
25
27
#include "split-index.h"
26
28
#include "symlinks.h"
+2
builtin/update-ref.c
+2
builtin/update-ref.c
···
1
1
#include "cache.h"
2
2
#include "config.h"
3
3
#include "gettext.h"
4
+
#include "hash.h"
4
5
#include "refs.h"
5
6
#include "builtin.h"
6
7
#include "object-name.h"
7
8
#include "parse-options.h"
8
9
#include "quote.h"
10
+
#include "repository.h"
9
11
#include "strvec.h"
10
12
11
13
static const char * const git_update_ref_usage[] = {
+1
builtin/upload-archive.c
+1
builtin/upload-archive.c
+1
builtin/worktree.c
+1
builtin/worktree.c
+1
checkout.c
+1
checkout.c
+1
-1
checkout.h
+1
-1
checkout.h
+1
chunk-format.c
+1
chunk-format.c
+1
-1
chunk-format.h
+1
-1
chunk-format.h
+1
common-main.c
+1
common-main.c
+1
compat/fsmonitor/fsm-ipc-darwin.c
+1
compat/fsmonitor/fsm-ipc-darwin.c
+1
compat/fsmonitor/fsm-ipc-win32.c
+1
compat/fsmonitor/fsm-ipc-win32.c
+1
compat/precompose_utf8.c
+1
compat/precompose_utf8.c
+1
compat/win32/trace2_win32_process_info.c
+1
compat/win32/trace2_win32_process_info.c
+1
-1
convert.h
+1
-1
convert.h
+1
copy.c
+1
copy.c
+1
csum-file.c
+1
csum-file.c
+1
-1
csum-file.h
+1
-1
csum-file.h
+1
daemon.c
+1
daemon.c
+1
-1
diffcore.h
+1
-1
diffcore.h
+1
editor.c
+1
editor.c
+1
exec-cmd.c
+1
exec-cmd.c
+1
fsmonitor-ipc.c
+1
fsmonitor-ipc.c
+1
gpg-interface.c
+1
gpg-interface.c
+276
hash-ll.h
+276
hash-ll.h
···
1
+
#ifndef HASH_LL_H
2
+
#define HASH_LL_H
3
+
4
+
#if defined(SHA1_APPLE)
5
+
#include <CommonCrypto/CommonDigest.h>
6
+
#elif defined(SHA1_OPENSSL)
7
+
#include <openssl/sha.h>
8
+
#elif defined(SHA1_DC)
9
+
#include "sha1dc_git.h"
10
+
#else /* SHA1_BLK */
11
+
#include "block-sha1/sha1.h"
12
+
#endif
13
+
14
+
#if defined(SHA256_NETTLE)
15
+
#include "sha256/nettle.h"
16
+
#elif defined(SHA256_GCRYPT)
17
+
#define SHA256_NEEDS_CLONE_HELPER
18
+
#include "sha256/gcrypt.h"
19
+
#elif defined(SHA256_OPENSSL)
20
+
#include <openssl/sha.h>
21
+
#else
22
+
#include "sha256/block/sha256.h"
23
+
#endif
24
+
25
+
#ifndef platform_SHA_CTX
26
+
/*
27
+
* platform's underlying implementation of SHA-1; could be OpenSSL,
28
+
* blk_SHA, Apple CommonCrypto, etc... Note that the relevant
29
+
* SHA-1 header may have already defined platform_SHA_CTX for our
30
+
* own implementations like block-sha1, so we list
31
+
* the default for OpenSSL compatible SHA-1 implementations here.
32
+
*/
33
+
#define platform_SHA_CTX SHA_CTX
34
+
#define platform_SHA1_Init SHA1_Init
35
+
#define platform_SHA1_Update SHA1_Update
36
+
#define platform_SHA1_Final SHA1_Final
37
+
#endif
38
+
39
+
#define git_SHA_CTX platform_SHA_CTX
40
+
#define git_SHA1_Init platform_SHA1_Init
41
+
#define git_SHA1_Update platform_SHA1_Update
42
+
#define git_SHA1_Final platform_SHA1_Final
43
+
44
+
#ifndef platform_SHA256_CTX
45
+
#define platform_SHA256_CTX SHA256_CTX
46
+
#define platform_SHA256_Init SHA256_Init
47
+
#define platform_SHA256_Update SHA256_Update
48
+
#define platform_SHA256_Final SHA256_Final
49
+
#endif
50
+
51
+
#define git_SHA256_CTX platform_SHA256_CTX
52
+
#define git_SHA256_Init platform_SHA256_Init
53
+
#define git_SHA256_Update platform_SHA256_Update
54
+
#define git_SHA256_Final platform_SHA256_Final
55
+
56
+
#ifdef platform_SHA256_Clone
57
+
#define git_SHA256_Clone platform_SHA256_Clone
58
+
#endif
59
+
60
+
#ifdef SHA1_MAX_BLOCK_SIZE
61
+
#include "compat/sha1-chunked.h"
62
+
#undef git_SHA1_Update
63
+
#define git_SHA1_Update git_SHA1_Update_Chunked
64
+
#endif
65
+
66
+
static inline void git_SHA1_Clone(git_SHA_CTX *dst, const git_SHA_CTX *src)
67
+
{
68
+
memcpy(dst, src, sizeof(*dst));
69
+
}
70
+
71
+
#ifndef SHA256_NEEDS_CLONE_HELPER
72
+
static inline void git_SHA256_Clone(git_SHA256_CTX *dst, const git_SHA256_CTX *src)
73
+
{
74
+
memcpy(dst, src, sizeof(*dst));
75
+
}
76
+
#endif
77
+
78
+
/*
79
+
* Note that these constants are suitable for indexing the hash_algos array and
80
+
* comparing against each other, but are otherwise arbitrary, so they should not
81
+
* be exposed to the user or serialized to disk. To know whether a
82
+
* git_hash_algo struct points to some usable hash function, test the format_id
83
+
* field for being non-zero. Use the name field for user-visible situations and
84
+
* the format_id field for fixed-length fields on disk.
85
+
*/
86
+
/* An unknown hash function. */
87
+
#define GIT_HASH_UNKNOWN 0
88
+
/* SHA-1 */
89
+
#define GIT_HASH_SHA1 1
90
+
/* SHA-256 */
91
+
#define GIT_HASH_SHA256 2
92
+
/* Number of algorithms supported (including unknown). */
93
+
#define GIT_HASH_NALGOS (GIT_HASH_SHA256 + 1)
94
+
95
+
/* "sha1", big-endian */
96
+
#define GIT_SHA1_FORMAT_ID 0x73686131
97
+
98
+
/* The length in bytes and in hex digits of an object name (SHA-1 value). */
99
+
#define GIT_SHA1_RAWSZ 20
100
+
#define GIT_SHA1_HEXSZ (2 * GIT_SHA1_RAWSZ)
101
+
/* The block size of SHA-1. */
102
+
#define GIT_SHA1_BLKSZ 64
103
+
104
+
/* "s256", big-endian */
105
+
#define GIT_SHA256_FORMAT_ID 0x73323536
106
+
107
+
/* The length in bytes and in hex digits of an object name (SHA-256 value). */
108
+
#define GIT_SHA256_RAWSZ 32
109
+
#define GIT_SHA256_HEXSZ (2 * GIT_SHA256_RAWSZ)
110
+
/* The block size of SHA-256. */
111
+
#define GIT_SHA256_BLKSZ 64
112
+
113
+
/* The length in byte and in hex digits of the largest possible hash value. */
114
+
#define GIT_MAX_RAWSZ GIT_SHA256_RAWSZ
115
+
#define GIT_MAX_HEXSZ GIT_SHA256_HEXSZ
116
+
/* The largest possible block size for any supported hash. */
117
+
#define GIT_MAX_BLKSZ GIT_SHA256_BLKSZ
118
+
119
+
struct object_id {
120
+
unsigned char hash[GIT_MAX_RAWSZ];
121
+
int algo; /* XXX requires 4-byte alignment */
122
+
};
123
+
124
+
#define GET_OID_QUIETLY 01
125
+
#define GET_OID_COMMIT 02
126
+
#define GET_OID_COMMITTISH 04
127
+
#define GET_OID_TREE 010
128
+
#define GET_OID_TREEISH 020
129
+
#define GET_OID_BLOB 040
130
+
#define GET_OID_FOLLOW_SYMLINKS 0100
131
+
#define GET_OID_RECORD_PATH 0200
132
+
#define GET_OID_ONLY_TO_DIE 04000
133
+
#define GET_OID_REQUIRE_PATH 010000
134
+
135
+
#define GET_OID_DISAMBIGUATORS \
136
+
(GET_OID_COMMIT | GET_OID_COMMITTISH | \
137
+
GET_OID_TREE | GET_OID_TREEISH | \
138
+
GET_OID_BLOB)
139
+
140
+
enum get_oid_result {
141
+
FOUND = 0,
142
+
MISSING_OBJECT = -1, /* The requested object is missing */
143
+
SHORT_NAME_AMBIGUOUS = -2,
144
+
/* The following only apply when symlinks are followed */
145
+
DANGLING_SYMLINK = -4, /*
146
+
* The initial symlink is there, but
147
+
* (transitively) points to a missing
148
+
* in-tree file
149
+
*/
150
+
SYMLINK_LOOP = -5,
151
+
NOT_DIR = -6, /*
152
+
* Somewhere along the symlink chain, a path is
153
+
* requested which contains a file as a
154
+
* non-final element.
155
+
*/
156
+
};
157
+
158
+
/* A suitably aligned type for stack allocations of hash contexts. */
159
+
union git_hash_ctx {
160
+
git_SHA_CTX sha1;
161
+
git_SHA256_CTX sha256;
162
+
};
163
+
typedef union git_hash_ctx git_hash_ctx;
164
+
165
+
typedef void (*git_hash_init_fn)(git_hash_ctx *ctx);
166
+
typedef void (*git_hash_clone_fn)(git_hash_ctx *dst, const git_hash_ctx *src);
167
+
typedef void (*git_hash_update_fn)(git_hash_ctx *ctx, const void *in, size_t len);
168
+
typedef void (*git_hash_final_fn)(unsigned char *hash, git_hash_ctx *ctx);
169
+
typedef void (*git_hash_final_oid_fn)(struct object_id *oid, git_hash_ctx *ctx);
170
+
171
+
struct git_hash_algo {
172
+
/*
173
+
* The name of the algorithm, as appears in the config file and in
174
+
* messages.
175
+
*/
176
+
const char *name;
177
+
178
+
/* A four-byte version identifier, used in pack indices. */
179
+
uint32_t format_id;
180
+
181
+
/* The length of the hash in binary. */
182
+
size_t rawsz;
183
+
184
+
/* The length of the hash in hex characters. */
185
+
size_t hexsz;
186
+
187
+
/* The block size of the hash. */
188
+
size_t blksz;
189
+
190
+
/* The hash initialization function. */
191
+
git_hash_init_fn init_fn;
192
+
193
+
/* The hash context cloning function. */
194
+
git_hash_clone_fn clone_fn;
195
+
196
+
/* The hash update function. */
197
+
git_hash_update_fn update_fn;
198
+
199
+
/* The hash finalization function. */
200
+
git_hash_final_fn final_fn;
201
+
202
+
/* The hash finalization function for object IDs. */
203
+
git_hash_final_oid_fn final_oid_fn;
204
+
205
+
/* The OID of the empty tree. */
206
+
const struct object_id *empty_tree;
207
+
208
+
/* The OID of the empty blob. */
209
+
const struct object_id *empty_blob;
210
+
211
+
/* The all-zeros OID. */
212
+
const struct object_id *null_oid;
213
+
};
214
+
extern const struct git_hash_algo hash_algos[GIT_HASH_NALGOS];
215
+
216
+
/*
217
+
* Return a GIT_HASH_* constant based on the name. Returns GIT_HASH_UNKNOWN if
218
+
* the name doesn't match a known algorithm.
219
+
*/
220
+
int hash_algo_by_name(const char *name);
221
+
/* Identical, except based on the format ID. */
222
+
int hash_algo_by_id(uint32_t format_id);
223
+
/* Identical, except based on the length. */
224
+
int hash_algo_by_length(int len);
225
+
/* Identical, except for a pointer to struct git_hash_algo. */
226
+
static inline int hash_algo_by_ptr(const struct git_hash_algo *p)
227
+
{
228
+
return p - hash_algos;
229
+
}
230
+
231
+
const struct object_id *null_oid(void);
232
+
233
+
static inline int hashcmp_algop(const unsigned char *sha1, const unsigned char *sha2, const struct git_hash_algo *algop)
234
+
{
235
+
/*
236
+
* Teach the compiler that there are only two possibilities of hash size
237
+
* here, so that it can optimize for this case as much as possible.
238
+
*/
239
+
if (algop->rawsz == GIT_MAX_RAWSZ)
240
+
return memcmp(sha1, sha2, GIT_MAX_RAWSZ);
241
+
return memcmp(sha1, sha2, GIT_SHA1_RAWSZ);
242
+
}
243
+
244
+
static inline int hasheq_algop(const unsigned char *sha1, const unsigned char *sha2, const struct git_hash_algo *algop)
245
+
{
246
+
/*
247
+
* We write this here instead of deferring to hashcmp so that the
248
+
* compiler can properly inline it and avoid calling memcmp.
249
+
*/
250
+
if (algop->rawsz == GIT_MAX_RAWSZ)
251
+
return !memcmp(sha1, sha2, GIT_MAX_RAWSZ);
252
+
return !memcmp(sha1, sha2, GIT_SHA1_RAWSZ);
253
+
}
254
+
255
+
static inline void oidcpy(struct object_id *dst, const struct object_id *src)
256
+
{
257
+
memcpy(dst->hash, src->hash, GIT_MAX_RAWSZ);
258
+
dst->algo = src->algo;
259
+
}
260
+
261
+
static inline struct object_id *oiddup(const struct object_id *src)
262
+
{
263
+
struct object_id *dst = xmalloc(sizeof(struct object_id));
264
+
oidcpy(dst, src);
265
+
return dst;
266
+
}
267
+
268
+
static inline void oid_set_algo(struct object_id *oid, const struct git_hash_algo *algop)
269
+
{
270
+
oid->algo = hash_algo_by_ptr(algop);
271
+
}
272
+
273
+
const char *empty_tree_oid_hex(void);
274
+
const char *empty_blob_oid_hex(void);
275
+
276
+
#endif
+1
hash-lookup.c
+1
hash-lookup.c
+1
-272
hash.h
+1
-272
hash.h
···
1
1
#ifndef HASH_H
2
2
#define HASH_H
3
3
4
+
#include "hash-ll.h"
4
5
#include "repository.h"
5
6
6
-
#if defined(SHA1_APPLE)
7
-
#include <CommonCrypto/CommonDigest.h>
8
-
#elif defined(SHA1_OPENSSL)
9
-
#include <openssl/sha.h>
10
-
#elif defined(SHA1_DC)
11
-
#include "sha1dc_git.h"
12
-
#else /* SHA1_BLK */
13
-
#include "block-sha1/sha1.h"
14
-
#endif
15
-
16
-
#if defined(SHA256_NETTLE)
17
-
#include "sha256/nettle.h"
18
-
#elif defined(SHA256_GCRYPT)
19
-
#define SHA256_NEEDS_CLONE_HELPER
20
-
#include "sha256/gcrypt.h"
21
-
#elif defined(SHA256_OPENSSL)
22
-
#include <openssl/sha.h>
23
-
#else
24
-
#include "sha256/block/sha256.h"
25
-
#endif
26
-
27
-
#ifndef platform_SHA_CTX
28
-
/*
29
-
* platform's underlying implementation of SHA-1; could be OpenSSL,
30
-
* blk_SHA, Apple CommonCrypto, etc... Note that the relevant
31
-
* SHA-1 header may have already defined platform_SHA_CTX for our
32
-
* own implementations like block-sha1, so we list
33
-
* the default for OpenSSL compatible SHA-1 implementations here.
34
-
*/
35
-
#define platform_SHA_CTX SHA_CTX
36
-
#define platform_SHA1_Init SHA1_Init
37
-
#define platform_SHA1_Update SHA1_Update
38
-
#define platform_SHA1_Final SHA1_Final
39
-
#endif
40
-
41
-
#define git_SHA_CTX platform_SHA_CTX
42
-
#define git_SHA1_Init platform_SHA1_Init
43
-
#define git_SHA1_Update platform_SHA1_Update
44
-
#define git_SHA1_Final platform_SHA1_Final
45
-
46
-
#ifndef platform_SHA256_CTX
47
-
#define platform_SHA256_CTX SHA256_CTX
48
-
#define platform_SHA256_Init SHA256_Init
49
-
#define platform_SHA256_Update SHA256_Update
50
-
#define platform_SHA256_Final SHA256_Final
51
-
#endif
52
-
53
-
#define git_SHA256_CTX platform_SHA256_CTX
54
-
#define git_SHA256_Init platform_SHA256_Init
55
-
#define git_SHA256_Update platform_SHA256_Update
56
-
#define git_SHA256_Final platform_SHA256_Final
57
-
58
-
#ifdef platform_SHA256_Clone
59
-
#define git_SHA256_Clone platform_SHA256_Clone
60
-
#endif
61
-
62
-
#ifdef SHA1_MAX_BLOCK_SIZE
63
-
#include "compat/sha1-chunked.h"
64
-
#undef git_SHA1_Update
65
-
#define git_SHA1_Update git_SHA1_Update_Chunked
66
-
#endif
67
-
68
-
static inline void git_SHA1_Clone(git_SHA_CTX *dst, const git_SHA_CTX *src)
69
-
{
70
-
memcpy(dst, src, sizeof(*dst));
71
-
}
72
-
73
-
#ifndef SHA256_NEEDS_CLONE_HELPER
74
-
static inline void git_SHA256_Clone(git_SHA256_CTX *dst, const git_SHA256_CTX *src)
75
-
{
76
-
memcpy(dst, src, sizeof(*dst));
77
-
}
78
-
#endif
79
-
80
-
/*
81
-
* Note that these constants are suitable for indexing the hash_algos array and
82
-
* comparing against each other, but are otherwise arbitrary, so they should not
83
-
* be exposed to the user or serialized to disk. To know whether a
84
-
* git_hash_algo struct points to some usable hash function, test the format_id
85
-
* field for being non-zero. Use the name field for user-visible situations and
86
-
* the format_id field for fixed-length fields on disk.
87
-
*/
88
-
/* An unknown hash function. */
89
-
#define GIT_HASH_UNKNOWN 0
90
-
/* SHA-1 */
91
-
#define GIT_HASH_SHA1 1
92
-
/* SHA-256 */
93
-
#define GIT_HASH_SHA256 2
94
-
/* Number of algorithms supported (including unknown). */
95
-
#define GIT_HASH_NALGOS (GIT_HASH_SHA256 + 1)
96
-
97
-
/* "sha1", big-endian */
98
-
#define GIT_SHA1_FORMAT_ID 0x73686131
99
-
100
-
/* The length in bytes and in hex digits of an object name (SHA-1 value). */
101
-
#define GIT_SHA1_RAWSZ 20
102
-
#define GIT_SHA1_HEXSZ (2 * GIT_SHA1_RAWSZ)
103
-
/* The block size of SHA-1. */
104
-
#define GIT_SHA1_BLKSZ 64
105
-
106
-
/* "s256", big-endian */
107
-
#define GIT_SHA256_FORMAT_ID 0x73323536
108
-
109
-
/* The length in bytes and in hex digits of an object name (SHA-256 value). */
110
-
#define GIT_SHA256_RAWSZ 32
111
-
#define GIT_SHA256_HEXSZ (2 * GIT_SHA256_RAWSZ)
112
-
/* The block size of SHA-256. */
113
-
#define GIT_SHA256_BLKSZ 64
114
-
115
-
/* The length in byte and in hex digits of the largest possible hash value. */
116
-
#define GIT_MAX_RAWSZ GIT_SHA256_RAWSZ
117
-
#define GIT_MAX_HEXSZ GIT_SHA256_HEXSZ
118
-
/* The largest possible block size for any supported hash. */
119
-
#define GIT_MAX_BLKSZ GIT_SHA256_BLKSZ
120
-
121
-
struct object_id {
122
-
unsigned char hash[GIT_MAX_RAWSZ];
123
-
int algo; /* XXX requires 4-byte alignment */
124
-
};
125
-
126
-
#define GET_OID_QUIETLY 01
127
-
#define GET_OID_COMMIT 02
128
-
#define GET_OID_COMMITTISH 04
129
-
#define GET_OID_TREE 010
130
-
#define GET_OID_TREEISH 020
131
-
#define GET_OID_BLOB 040
132
-
#define GET_OID_FOLLOW_SYMLINKS 0100
133
-
#define GET_OID_RECORD_PATH 0200
134
-
#define GET_OID_ONLY_TO_DIE 04000
135
-
#define GET_OID_REQUIRE_PATH 010000
136
-
137
-
#define GET_OID_DISAMBIGUATORS \
138
-
(GET_OID_COMMIT | GET_OID_COMMITTISH | \
139
-
GET_OID_TREE | GET_OID_TREEISH | \
140
-
GET_OID_BLOB)
141
-
142
-
enum get_oid_result {
143
-
FOUND = 0,
144
-
MISSING_OBJECT = -1, /* The requested object is missing */
145
-
SHORT_NAME_AMBIGUOUS = -2,
146
-
/* The following only apply when symlinks are followed */
147
-
DANGLING_SYMLINK = -4, /*
148
-
* The initial symlink is there, but
149
-
* (transitively) points to a missing
150
-
* in-tree file
151
-
*/
152
-
SYMLINK_LOOP = -5,
153
-
NOT_DIR = -6, /*
154
-
* Somewhere along the symlink chain, a path is
155
-
* requested which contains a file as a
156
-
* non-final element.
157
-
*/
158
-
};
159
-
160
-
/* A suitably aligned type for stack allocations of hash contexts. */
161
-
union git_hash_ctx {
162
-
git_SHA_CTX sha1;
163
-
git_SHA256_CTX sha256;
164
-
};
165
-
typedef union git_hash_ctx git_hash_ctx;
166
-
167
-
typedef void (*git_hash_init_fn)(git_hash_ctx *ctx);
168
-
typedef void (*git_hash_clone_fn)(git_hash_ctx *dst, const git_hash_ctx *src);
169
-
typedef void (*git_hash_update_fn)(git_hash_ctx *ctx, const void *in, size_t len);
170
-
typedef void (*git_hash_final_fn)(unsigned char *hash, git_hash_ctx *ctx);
171
-
typedef void (*git_hash_final_oid_fn)(struct object_id *oid, git_hash_ctx *ctx);
172
-
173
-
struct git_hash_algo {
174
-
/*
175
-
* The name of the algorithm, as appears in the config file and in
176
-
* messages.
177
-
*/
178
-
const char *name;
179
-
180
-
/* A four-byte version identifier, used in pack indices. */
181
-
uint32_t format_id;
182
-
183
-
/* The length of the hash in binary. */
184
-
size_t rawsz;
185
-
186
-
/* The length of the hash in hex characters. */
187
-
size_t hexsz;
188
-
189
-
/* The block size of the hash. */
190
-
size_t blksz;
191
-
192
-
/* The hash initialization function. */
193
-
git_hash_init_fn init_fn;
194
-
195
-
/* The hash context cloning function. */
196
-
git_hash_clone_fn clone_fn;
197
-
198
-
/* The hash update function. */
199
-
git_hash_update_fn update_fn;
200
-
201
-
/* The hash finalization function. */
202
-
git_hash_final_fn final_fn;
203
-
204
-
/* The hash finalization function for object IDs. */
205
-
git_hash_final_oid_fn final_oid_fn;
206
-
207
-
/* The OID of the empty tree. */
208
-
const struct object_id *empty_tree;
209
-
210
-
/* The OID of the empty blob. */
211
-
const struct object_id *empty_blob;
212
-
213
-
/* The all-zeros OID. */
214
-
const struct object_id *null_oid;
215
-
};
216
-
extern const struct git_hash_algo hash_algos[GIT_HASH_NALGOS];
217
-
218
-
/*
219
-
* Return a GIT_HASH_* constant based on the name. Returns GIT_HASH_UNKNOWN if
220
-
* the name doesn't match a known algorithm.
221
-
*/
222
-
int hash_algo_by_name(const char *name);
223
-
/* Identical, except based on the format ID. */
224
-
int hash_algo_by_id(uint32_t format_id);
225
-
/* Identical, except based on the length. */
226
-
int hash_algo_by_length(int len);
227
-
/* Identical, except for a pointer to struct git_hash_algo. */
228
-
static inline int hash_algo_by_ptr(const struct git_hash_algo *p)
229
-
{
230
-
return p - hash_algos;
231
-
}
232
-
233
7
#define the_hash_algo the_repository->hash_algo
234
8
235
-
const struct object_id *null_oid(void);
236
-
237
-
static inline int hashcmp_algop(const unsigned char *sha1, const unsigned char *sha2, const struct git_hash_algo *algop)
238
-
{
239
-
/*
240
-
* Teach the compiler that there are only two possibilities of hash size
241
-
* here, so that it can optimize for this case as much as possible.
242
-
*/
243
-
if (algop->rawsz == GIT_MAX_RAWSZ)
244
-
return memcmp(sha1, sha2, GIT_MAX_RAWSZ);
245
-
return memcmp(sha1, sha2, GIT_SHA1_RAWSZ);
246
-
}
247
-
248
9
static inline int hashcmp(const unsigned char *sha1, const unsigned char *sha2)
249
10
{
250
11
return hashcmp_algop(sha1, sha2, the_hash_algo);
···
260
21
return hashcmp_algop(oid1->hash, oid2->hash, algop);
261
22
}
262
23
263
-
static inline int hasheq_algop(const unsigned char *sha1, const unsigned char *sha2, const struct git_hash_algo *algop)
264
-
{
265
-
/*
266
-
* We write this here instead of deferring to hashcmp so that the
267
-
* compiler can properly inline it and avoid calling memcmp.
268
-
*/
269
-
if (algop->rawsz == GIT_MAX_RAWSZ)
270
-
return !memcmp(sha1, sha2, GIT_MAX_RAWSZ);
271
-
return !memcmp(sha1, sha2, GIT_SHA1_RAWSZ);
272
-
}
273
-
274
24
static inline int hasheq(const unsigned char *sha1, const unsigned char *sha2)
275
25
{
276
26
return hasheq_algop(sha1, sha2, the_hash_algo);
···
296
46
memcpy(sha_dst, sha_src, the_hash_algo->rawsz);
297
47
}
298
48
299
-
static inline void oidcpy(struct object_id *dst, const struct object_id *src)
300
-
{
301
-
memcpy(dst->hash, src->hash, GIT_MAX_RAWSZ);
302
-
dst->algo = src->algo;
303
-
}
304
-
305
49
/* Like oidcpy() but zero-pads the unused bytes in dst's hash array. */
306
50
static inline void oidcpy_with_padding(struct object_id *dst,
307
51
const struct object_id *src)
···
316
60
memcpy(dst->hash, src->hash, hashsz);
317
61
memset(dst->hash + hashsz, 0, GIT_MAX_RAWSZ - hashsz);
318
62
dst->algo = src->algo;
319
-
}
320
-
321
-
static inline struct object_id *oiddup(const struct object_id *src)
322
-
{
323
-
struct object_id *dst = xmalloc(sizeof(struct object_id));
324
-
oidcpy(dst, src);
325
-
return dst;
326
63
}
327
64
328
65
static inline void hashclr(unsigned char *hash)
···
361
98
{
362
99
return oideq(oid, the_hash_algo->empty_tree);
363
100
}
364
-
365
-
static inline void oid_set_algo(struct object_id *oid, const struct git_hash_algo *algop)
366
-
{
367
-
oid->algo = hash_algo_by_ptr(algop);
368
-
}
369
-
370
-
const char *empty_tree_oid_hex(void);
371
-
const char *empty_blob_oid_hex(void);
372
101
373
102
#endif
+1
-1
hashmap.h
+1
-1
hashmap.h
+1
hex.c
+1
hex.c
+1
-1
hex.h
+1
-1
hex.h
+1
hook.c
+1
hook.c
+1
khash.h
+1
khash.h
+1
ls-refs.c
+1
ls-refs.c
+1
merge-ort-wrappers.c
+1
merge-ort-wrappers.c
+1
-1
merge-ort.h
+1
-1
merge-ort.h
+1
negotiator/default.c
+1
negotiator/default.c
+1
negotiator/skipping.c
+1
negotiator/skipping.c
+2
object-file.h
+2
object-file.h
+2
-1
object.h
+2
-1
object.h
+1
oidmap.c
+1
oidmap.c
+1
-1
oidtree.h
+1
-1
oidtree.h
+1
parallel-checkout.c
+1
parallel-checkout.c
+1
pathspec.c
+1
pathspec.c
+1
progress.c
+1
progress.c
+1
-1
protocol-caps.c
+1
-1
protocol-caps.c
+1
rebase-interactive.c
+1
rebase-interactive.c
+1
refs/files-backend.c
+1
refs/files-backend.c
+1
refs/packed-backend.c
+1
refs/packed-backend.c
+2
refs/ref-cache.c
+2
refs/ref-cache.c
+2
-1
refs/ref-cache.h
+2
-1
refs/ref-cache.h
+1
refspec.c
+1
refspec.c
+1
-1
reftable/dump.c
+1
-1
reftable/dump.c
+1
-1
reftable/system.h
+1
-1
reftable/system.h
+1
-1
reset.h
+1
-1
reset.h
+1
resolve-undo.c
+1
resolve-undo.c
+1
-1
resolve-undo.h
+1
-1
resolve-undo.h
+1
split-index.c
+1
split-index.c
+1
-1
split-index.h
+1
-1
split-index.h
+1
strbuf.c
+1
strbuf.c
+1
t/helper/test-bloom.c
+1
t/helper/test-bloom.c
+1
t/helper/test-cache-tree.c
+1
t/helper/test-cache-tree.c
+2
t/helper/test-dump-cache-tree.c
+2
t/helper/test-dump-cache-tree.c
···
1
1
#define USE_THE_INDEX_VARIABLE
2
2
#include "test-tool.h"
3
3
#include "cache.h"
4
+
#include "hash.h"
4
5
#include "hex.h"
5
6
#include "tree.h"
6
7
#include "cache-tree.h"
8
+
#include "repository.h"
7
9
#include "setup.h"
8
10
9
11
static void dump_one(struct cache_tree *it, const char *pfx, const char *x)
+1
t/helper/test-dump-fsmonitor.c
+1
t/helper/test-dump-fsmonitor.c
+1
t/helper/test-dump-untracked-cache.c
+1
t/helper/test-dump-untracked-cache.c
+1
t/helper/test-example-decorate.c
+1
t/helper/test-example-decorate.c
+1
t/helper/test-fsmonitor-client.c
+1
t/helper/test-fsmonitor-client.c
+1
t/helper/test-lazy-init-name-hash.c
+1
t/helper/test-lazy-init-name-hash.c
+1
t/helper/test-match-trees.c
+1
t/helper/test-match-trees.c
+1
t/helper/test-oidmap.c
+1
t/helper/test-oidmap.c
+1
t/helper/test-path-utils.c
+1
t/helper/test-path-utils.c
+1
t/helper/test-read-cache.c
+1
t/helper/test-read-cache.c
+1
t/helper/test-scrap-cache-tree.c
+1
t/helper/test-scrap-cache-tree.c
+2
t/helper/test-submodule-config.c
+2
t/helper/test-submodule-config.c
+1
t/helper/test-submodule-nested-repo-config.c
+1
t/helper/test-submodule-nested-repo-config.c
+1
t/helper/test-submodule.c
+1
t/helper/test-submodule.c
+1
t/helper/test-trace2.c
+1
t/helper/test-trace2.c
+1
t/helper/test-write-cache.c
+1
t/helper/test-write-cache.c
+1
trace2.c
+1
trace2.c
+1
trace2/tr2_tgt_event.c
+1
trace2/tr2_tgt_event.c
+1
trace2/tr2_tgt_normal.c
+1
trace2/tr2_tgt_normal.c
+1
trace2/tr2_tgt_perf.c
+1
trace2/tr2_tgt_perf.c
+2
-1
tree-walk.h
+2
-1
tree-walk.h
+1
tree.h
+1
tree.h
+1
wrapper.c
+1
wrapper.c