diff options
| -rw-r--r-- | Makefile | 2 | ||||
| -rw-r--r-- | notes-cache.c | 94 | ||||
| -rw-r--r-- | notes-cache.h | 20 |
3 files changed, 116 insertions, 0 deletions
@@ -486,6 +486,7 @@ LIB_H += log-tree.h LIB_H += mailmap.h LIB_H += merge-recursive.h LIB_H += notes.h +LIB_H += notes-cache.h LIB_H += object.h LIB_H += pack.h LIB_H += pack-refs.h @@ -575,6 +576,7 @@ LIB_OBJS += merge-file.o LIB_OBJS += merge-recursive.o LIB_OBJS += name-hash.o LIB_OBJS += notes.o +LIB_OBJS += notes-cache.o LIB_OBJS += object.o LIB_OBJS += pack-check.o LIB_OBJS += pack-refs.o diff --git a/notes-cache.c b/notes-cache.c new file mode 100644 index 0000000000..dee6d62e72 --- /dev/null +++ b/notes-cache.c @@ -0,0 +1,94 @@ +#include "cache.h" +#include "notes-cache.h" +#include "commit.h" +#include "refs.h" + +static int notes_cache_match_validity(const char *ref, const char *validity) +{ + unsigned char sha1[20]; + struct commit *commit; + struct pretty_print_context pretty_ctx; + struct strbuf msg = STRBUF_INIT; + int ret; + + if (read_ref(ref, sha1) < 0) + return 0; + + commit = lookup_commit_reference_gently(sha1, 1); + if (!commit) + return 0; + + memset(&pretty_ctx, 0, sizeof(pretty_ctx)); + format_commit_message(commit, "%s", &msg, &pretty_ctx); + strbuf_trim(&msg); + + ret = !strcmp(msg.buf, validity); + strbuf_release(&msg); + + return ret; +} + +void notes_cache_init(struct notes_cache *c, const char *name, + const char *validity) +{ + struct strbuf ref = STRBUF_INIT; + int flags = 0; + + memset(c, 0, sizeof(*c)); + c->validity = xstrdup(validity); + + strbuf_addf(&ref, "refs/notes/%s", name); + if (!notes_cache_match_validity(ref.buf, validity)) + flags = NOTES_INIT_EMPTY; + init_notes(&c->tree, ref.buf, combine_notes_overwrite, flags); + strbuf_release(&ref); +} + +int notes_cache_write(struct notes_cache *c) +{ + unsigned char tree_sha1[20]; + unsigned char commit_sha1[20]; + + if (!c || !c->tree.initialized || !c->tree.ref || !*c->tree.ref) + return -1; + if (!c->tree.dirty) + return 0; + + if (write_notes_tree(&c->tree, tree_sha1)) + return -1; + if (commit_tree(c->validity, tree_sha1, NULL, commit_sha1, NULL) < 0) + return -1; + if (update_ref("update notes cache", c->tree.ref, commit_sha1, NULL, + 0, QUIET_ON_ERR) < 0) + return -1; + + return 0; +} + +char *notes_cache_get(struct notes_cache *c, unsigned char key_sha1[20], + size_t *outsize) +{ + const unsigned char *value_sha1; + enum object_type type; + char *value; + unsigned long size; + + value_sha1 = get_note(&c->tree, key_sha1); + if (!value_sha1) + return NULL; + value = read_sha1_file(value_sha1, &type, &size); + + *outsize = size; + return value; +} + +int notes_cache_put(struct notes_cache *c, unsigned char key_sha1[20], + const char *data, size_t size) +{ + unsigned char value_sha1[20]; + + if (write_sha1_file(data, size, "blob", value_sha1) < 0) + return -1; + add_note(&c->tree, key_sha1, value_sha1, NULL); + return 0; +} diff --git a/notes-cache.h b/notes-cache.h new file mode 100644 index 0000000000..356f88fb3c --- /dev/null +++ b/notes-cache.h @@ -0,0 +1,20 @@ +#ifndef NOTES_CACHE_H +#define NOTES_CACHE_H + +#include "notes.h" + +struct notes_cache { + struct notes_tree tree; + char *validity; +}; + +void notes_cache_init(struct notes_cache *c, const char *name, + const char *validity); +int notes_cache_write(struct notes_cache *c); + +char *notes_cache_get(struct notes_cache *c, unsigned char sha1[20], size_t + *outsize); +int notes_cache_put(struct notes_cache *c, unsigned char sha1[20], + const char *data, size_t size); + +#endif /* NOTES_CACHE_H */ |