commit: add repository argument to lookup_commit_reference_gently
[git/git.git] / notes-cache.c
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1#include "cache.h"
2#include "notes-cache.h"
cbd53a21 3#include "object-store.h"
21e1ee8f 4#include "repository.h"
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5#include "commit.h"
6#include "refs.h"
7
8static int notes_cache_match_validity(const char *ref, const char *validity)
9{
569aa376 10 struct object_id oid;
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11 struct commit *commit;
12 struct pretty_print_context pretty_ctx;
13 struct strbuf msg = STRBUF_INIT;
14 int ret;
15
34c290a6 16 if (read_ref(ref, &oid) < 0)
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17 return 0;
18
21e1ee8f 19 commit = lookup_commit_reference_gently(the_repository, &oid, 1);
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20 if (!commit)
21 return 0;
22
23 memset(&pretty_ctx, 0, sizeof(pretty_ctx));
24 format_commit_message(commit, "%s", &msg, &pretty_ctx);
25 strbuf_trim(&msg);
26
27 ret = !strcmp(msg.buf, validity);
28 strbuf_release(&msg);
29
30 return ret;
31}
32
33void notes_cache_init(struct notes_cache *c, const char *name,
34 const char *validity)
35{
36 struct strbuf ref = STRBUF_INIT;
ee76f92f 37 int flags = NOTES_INIT_WRITABLE;
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38
39 memset(c, 0, sizeof(*c));
40 c->validity = xstrdup(validity);
41
42 strbuf_addf(&ref, "refs/notes/%s", name);
43 if (!notes_cache_match_validity(ref.buf, validity))
ee76f92f 44 flags |= NOTES_INIT_EMPTY;
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45 init_notes(&c->tree, ref.buf, combine_notes_overwrite, flags);
46 strbuf_release(&ref);
47}
48
49int notes_cache_write(struct notes_cache *c)
50{
569aa376 51 struct object_id tree_oid, commit_oid;
a941d5e3 52
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53 if (!c || !c->tree.initialized || !c->tree.update_ref ||
54 !*c->tree.update_ref)
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55 return -1;
56 if (!c->tree.dirty)
57 return 0;
58
bbca96d5 59 if (write_notes_tree(&c->tree, &tree_oid))
a941d5e3 60 return -1;
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61 if (commit_tree(c->validity, strlen(c->validity), &tree_oid, NULL,
62 &commit_oid, NULL, NULL) < 0)
a941d5e3 63 return -1;
ae077771 64 if (update_ref("update notes cache", c->tree.update_ref, &commit_oid,
ee76f92f 65 NULL, 0, UPDATE_REFS_QUIET_ON_ERR) < 0)
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66 return -1;
67
68 return 0;
69}
70
569aa376 71char *notes_cache_get(struct notes_cache *c, struct object_id *key_oid,
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72 size_t *outsize)
73{
9ef72230 74 const struct object_id *value_oid;
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75 enum object_type type;
76 char *value;
77 unsigned long size;
78
5ee8a954 79 value_oid = get_note(&c->tree, key_oid);
9ef72230 80 if (!value_oid)
a941d5e3 81 return NULL;
b4f5aca4 82 value = read_object_file(value_oid, &type, &size);
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83
84 *outsize = size;
85 return value;
86}
87
569aa376 88int notes_cache_put(struct notes_cache *c, struct object_id *key_oid,
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89 const char *data, size_t size)
90{
569aa376 91 struct object_id value_oid;
a941d5e3 92
a09c985e 93 if (write_object_file(data, size, "blob", &value_oid) < 0)
a941d5e3 94 return -1;
5ee8a954 95 return add_note(&c->tree, key_oid, &value_oid, NULL);
a941d5e3 96}