freshlybakedca.ke
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1#define USE_THE_REPOSITORY_VARIABLE
2
3#include "git-compat-util.h"
4#include "notes-cache.h"
5#include "object-file.h"
6#include "odb.h"
7#include "pretty.h"
8#include "repository.h"
9#include "commit.h"
10#include "refs.h"
11#include "strbuf.h"
12
13static int notes_cache_match_validity(struct repository *r,
14 const char *ref,
15 const char *validity)
16{
17 struct object_id oid;
18 struct commit *commit;
19 struct pretty_print_context pretty_ctx;
20 struct strbuf msg = STRBUF_INIT;
21 int ret;
22
23 if (refs_read_ref(get_main_ref_store(the_repository), ref, &oid) < 0)
24 return 0;
25
26 commit = lookup_commit_reference_gently(r, &oid, 1);
27 if (!commit)
28 return 0;
29
30 memset(&pretty_ctx, 0, sizeof(pretty_ctx));
31 repo_format_commit_message(r, commit, "%s", &msg,
32 &pretty_ctx);
33 strbuf_trim(&msg);
34
35 ret = !strcmp(msg.buf, validity);
36 strbuf_release(&msg);
37
38 return ret;
39}
40
41void notes_cache_init(struct repository *r, struct notes_cache *c,
42 const char *name, const char *validity)
43{
44 struct strbuf ref = STRBUF_INIT;
45 int flags = NOTES_INIT_WRITABLE;
46
47 memset(c, 0, sizeof(*c));
48 c->validity = xstrdup(validity);
49
50 strbuf_addf(&ref, "refs/notes/%s", name);
51 if (!notes_cache_match_validity(r, ref.buf, validity))
52 flags |= NOTES_INIT_EMPTY;
53 init_notes(&c->tree, ref.buf, combine_notes_overwrite, flags);
54 strbuf_release(&ref);
55}
56
57int notes_cache_write(struct notes_cache *c)
58{
59 struct object_id tree_oid, commit_oid;
60
61 if (!c || !c->tree.initialized || !c->tree.update_ref ||
62 !*c->tree.update_ref)
63 return -1;
64 if (!c->tree.dirty)
65 return 0;
66
67 if (write_notes_tree(&c->tree, &tree_oid))
68 return -1;
69 if (commit_tree(c->validity, strlen(c->validity), &tree_oid, NULL,
70 &commit_oid, NULL, NULL) < 0)
71 return -1;
72 if (refs_update_ref(get_main_ref_store(the_repository), "update notes cache", c->tree.update_ref, &commit_oid,
73 NULL, 0, UPDATE_REFS_QUIET_ON_ERR) < 0)
74 return -1;
75
76 return 0;
77}
78
79char *notes_cache_get(struct notes_cache *c, struct object_id *key_oid,
80 size_t *outsize)
81{
82 const struct object_id *value_oid;
83 enum object_type type;
84 char *value;
85 unsigned long size;
86
87 value_oid = get_note(&c->tree, key_oid);
88 if (!value_oid)
89 return NULL;
90 value = odb_read_object(the_repository->objects, value_oid, &type, &size);
91
92 *outsize = size;
93 return value;
94}
95
96int notes_cache_put(struct notes_cache *c, struct object_id *key_oid,
97 const char *data, size_t size)
98{
99 struct object_id value_oid;
100
101 if (odb_write_object(the_repository->objects, data,
102 size, OBJ_BLOB, &value_oid) < 0)
103 return -1;
104 return add_note(&c->tree, key_oid, &value_oid, NULL);
105}