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#include "cache.h" |
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#include "notes-cache.h" |
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#include "commit.h" |
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#include "refs.h" |
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static int notes_cache_match_validity(const char *ref, const char *validity) |
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{ |
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struct object_id oid; |
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struct commit *commit; |
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struct pretty_print_context pretty_ctx; |
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struct strbuf msg = STRBUF_INIT; |
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int ret; |
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if (read_ref(ref, oid.hash) < 0) |
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return 0; |
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commit = lookup_commit_reference_gently(&oid, 1); |
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if (!commit) |
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return 0; |
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memset(&pretty_ctx, 0, sizeof(pretty_ctx)); |
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format_commit_message(commit, "%s", &msg, &pretty_ctx); |
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strbuf_trim(&msg); |
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ret = !strcmp(msg.buf, validity); |
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strbuf_release(&msg); |
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return ret; |
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} |
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void notes_cache_init(struct notes_cache *c, const char *name, |
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const char *validity) |
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{ |
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struct strbuf ref = STRBUF_INIT; |
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int flags = NOTES_INIT_WRITABLE; |
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memset(c, 0, sizeof(*c)); |
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c->validity = xstrdup(validity); |
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strbuf_addf(&ref, "refs/notes/%s", name); |
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if (!notes_cache_match_validity(ref.buf, validity)) |
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flags |= NOTES_INIT_EMPTY; |
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init_notes(&c->tree, ref.buf, combine_notes_overwrite, flags); |
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strbuf_release(&ref); |
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} |
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int notes_cache_write(struct notes_cache *c) |
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{ |
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struct object_id tree_oid, commit_oid; |
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if (!c || !c->tree.initialized || !c->tree.update_ref || |
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!*c->tree.update_ref) |
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return -1; |
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if (!c->tree.dirty) |
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return 0; |
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if (write_notes_tree(&c->tree, tree_oid.hash)) |
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return -1; |
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if (commit_tree(c->validity, strlen(c->validity), tree_oid.hash, NULL, |
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commit_oid.hash, NULL, NULL) < 0) |
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return -1; |
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if (update_ref("update notes cache", c->tree.update_ref, commit_oid.hash, |
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NULL, 0, UPDATE_REFS_QUIET_ON_ERR) < 0) |
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return -1; |
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return 0; |
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} |
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char *notes_cache_get(struct notes_cache *c, struct object_id *key_oid, |
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size_t *outsize) |
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{ |
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const struct object_id *value_oid; |
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enum object_type type; |
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char *value; |
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unsigned long size; |
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value_oid = get_note(&c->tree, key_oid); |
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if (!value_oid) |
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return NULL; |
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value = read_sha1_file(value_oid->hash, &type, &size); |
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*outsize = size; |
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return value; |
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} |
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int notes_cache_put(struct notes_cache *c, struct object_id *key_oid, |
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const char *data, size_t size) |
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{ |
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struct object_id value_oid; |
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if (write_sha1_file(data, size, "blob", value_oid.hash) < 0) |
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return -1; |
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return add_note(&c->tree, key_oid, &value_oid, NULL); |
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} |
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