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Commit | Line | Data |
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a941d5e3 JK |
1 | #include "cache.h" |
2 | #include "notes-cache.h" | |
3 | #include "commit.h" | |
4 | #include "refs.h" | |
5 | ||
6 | static int notes_cache_match_validity(const char *ref, const char *validity) | |
7 | { | |
8 | unsigned char sha1[20]; | |
9 | struct commit *commit; | |
10 | struct pretty_print_context pretty_ctx; | |
11 | struct strbuf msg = STRBUF_INIT; | |
12 | int ret; | |
13 | ||
14 | if (read_ref(ref, sha1) < 0) | |
15 | return 0; | |
16 | ||
17 | commit = lookup_commit_reference_gently(sha1, 1); | |
18 | if (!commit) | |
19 | return 0; | |
20 | ||
21 | memset(&pretty_ctx, 0, sizeof(pretty_ctx)); | |
22 | format_commit_message(commit, "%s", &msg, &pretty_ctx); | |
23 | strbuf_trim(&msg); | |
24 | ||
25 | ret = !strcmp(msg.buf, validity); | |
26 | strbuf_release(&msg); | |
27 | ||
28 | return ret; | |
29 | } | |
30 | ||
31 | void notes_cache_init(struct notes_cache *c, const char *name, | |
32 | const char *validity) | |
33 | { | |
34 | struct strbuf ref = STRBUF_INIT; | |
ee76f92f | 35 | int flags = NOTES_INIT_WRITABLE; |
a941d5e3 JK |
36 | |
37 | memset(c, 0, sizeof(*c)); | |
38 | c->validity = xstrdup(validity); | |
39 | ||
40 | strbuf_addf(&ref, "refs/notes/%s", name); | |
41 | if (!notes_cache_match_validity(ref.buf, validity)) | |
ee76f92f | 42 | flags |= NOTES_INIT_EMPTY; |
a941d5e3 JK |
43 | init_notes(&c->tree, ref.buf, combine_notes_overwrite, flags); |
44 | strbuf_release(&ref); | |
45 | } | |
46 | ||
47 | int notes_cache_write(struct notes_cache *c) | |
48 | { | |
49 | unsigned char tree_sha1[20]; | |
50 | unsigned char commit_sha1[20]; | |
51 | ||
ee76f92f MH |
52 | if (!c || !c->tree.initialized || !c->tree.update_ref || |
53 | !*c->tree.update_ref) | |
a941d5e3 JK |
54 | return -1; |
55 | if (!c->tree.dirty) | |
56 | return 0; | |
57 | ||
58 | if (write_notes_tree(&c->tree, tree_sha1)) | |
59 | return -1; | |
e6dfcd67 JK |
60 | if (commit_tree(c->validity, strlen(c->validity), tree_sha1, NULL, |
61 | commit_sha1, NULL, NULL) < 0) | |
a941d5e3 | 62 | return -1; |
ee76f92f MH |
63 | if (update_ref("update notes cache", c->tree.update_ref, commit_sha1, |
64 | NULL, 0, UPDATE_REFS_QUIET_ON_ERR) < 0) | |
a941d5e3 JK |
65 | return -1; |
66 | ||
67 | return 0; | |
68 | } | |
69 | ||
70 | char *notes_cache_get(struct notes_cache *c, unsigned char key_sha1[20], | |
71 | size_t *outsize) | |
72 | { | |
73 | const unsigned char *value_sha1; | |
74 | enum object_type type; | |
75 | char *value; | |
76 | unsigned long size; | |
77 | ||
78 | value_sha1 = get_note(&c->tree, key_sha1); | |
79 | if (!value_sha1) | |
80 | return NULL; | |
81 | value = read_sha1_file(value_sha1, &type, &size); | |
82 | ||
83 | *outsize = size; | |
84 | return value; | |
85 | } | |
86 | ||
87 | int notes_cache_put(struct notes_cache *c, unsigned char key_sha1[20], | |
88 | const char *data, size_t size) | |
89 | { | |
90 | unsigned char value_sha1[20]; | |
91 | ||
92 | if (write_sha1_file(data, size, "blob", value_sha1) < 0) | |
93 | return -1; | |
180619a5 | 94 | return add_note(&c->tree, key_sha1, value_sha1, NULL); |
a941d5e3 | 95 | } |