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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; | |
35 | int flags = 0; | |
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)) | |
42 | flags = NOTES_INIT_EMPTY; | |
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 | ||
52 | if (!c || !c->tree.initialized || !c->tree.ref || !*c->tree.ref) | |
53 | return -1; | |
54 | if (!c->tree.dirty) | |
55 | return 0; | |
56 | ||
57 | if (write_notes_tree(&c->tree, tree_sha1)) | |
58 | return -1; | |
e6dfcd67 JK |
59 | if (commit_tree(c->validity, strlen(c->validity), tree_sha1, NULL, |
60 | commit_sha1, NULL, NULL) < 0) | |
a941d5e3 JK |
61 | return -1; |
62 | if (update_ref("update notes cache", c->tree.ref, commit_sha1, NULL, | |
63 | 0, QUIET_ON_ERR) < 0) | |
64 | return -1; | |
65 | ||
66 | return 0; | |
67 | } | |
68 | ||
69 | char *notes_cache_get(struct notes_cache *c, unsigned char key_sha1[20], | |
70 | size_t *outsize) | |
71 | { | |
72 | const unsigned char *value_sha1; | |
73 | enum object_type type; | |
74 | char *value; | |
75 | unsigned long size; | |
76 | ||
77 | value_sha1 = get_note(&c->tree, key_sha1); | |
78 | if (!value_sha1) | |
79 | return NULL; | |
80 | value = read_sha1_file(value_sha1, &type, &size); | |
81 | ||
82 | *outsize = size; | |
83 | return value; | |
84 | } | |
85 | ||
86 | int notes_cache_put(struct notes_cache *c, unsigned char key_sha1[20], | |
87 | const char *data, size_t size) | |
88 | { | |
89 | unsigned char value_sha1[20]; | |
90 | ||
91 | if (write_sha1_file(data, size, "blob", value_sha1) < 0) | |
92 | return -1; | |
180619a5 | 93 | return add_note(&c->tree, key_sha1, value_sha1, NULL); |
a941d5e3 | 94 | } |