2 #include "notes-cache.h"
6 static int notes_cache_match_validity(const char *ref, const char *validity)
8 unsigned char sha1[20];
10 struct pretty_print_context pretty_ctx;
11 struct strbuf msg = STRBUF_INIT;
14 if (read_ref(ref, sha1) < 0)
17 commit = lookup_commit_reference_gently(sha1, 1);
21 memset(&pretty_ctx, 0, sizeof(pretty_ctx));
22 format_commit_message(commit, "%s", &msg, &pretty_ctx);
25 ret = !strcmp(msg.buf, validity);
31 void notes_cache_init(struct notes_cache *c, const char *name,
34 struct strbuf ref = STRBUF_INIT;
35 int flags = NOTES_INIT_WRITABLE;
37 memset(c, 0, sizeof(*c));
38 c->validity = xstrdup(validity);
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);
47 int notes_cache_write(struct notes_cache *c)
49 unsigned char tree_sha1[20];
50 unsigned char commit_sha1[20];
52 if (!c || !c->tree.initialized || !c->tree.update_ref ||
58 if (write_notes_tree(&c->tree, tree_sha1))
60 if (commit_tree(c->validity, strlen(c->validity), tree_sha1, NULL,
61 commit_sha1, NULL, NULL) < 0)
63 if (update_ref("update notes cache", c->tree.update_ref, commit_sha1,
64 NULL, 0, UPDATE_REFS_QUIET_ON_ERR) < 0)
70 char *notes_cache_get(struct notes_cache *c, unsigned char key_sha1[20],
73 const unsigned char *value_sha1;
74 enum object_type type;
78 value_sha1 = get_note(&c->tree, key_sha1);
81 value = read_sha1_file(value_sha1, &type, &size);
87 int notes_cache_put(struct notes_cache *c, unsigned char key_sha1[20],
88 const char *data, size_t size)
90 unsigned char value_sha1[20];
92 if (write_sha1_file(data, size, "blob", value_sha1) < 0)
94 return add_note(&c->tree, key_sha1, value_sha1, NULL);