void create_notes_commit(struct notes_tree *t, struct commit_list *parents,
const char *msg, unsigned char *result_sha1)
{
unsigned char tree_sha1[20];
assert(t->initialized);
if (write_notes_tree(t, tree_sha1))
die("Failed to write notes tree to database");
if (!parents) {
/* Deduce parent commit from t->ref */
unsigned char parent_sha1[20];
if (!read_ref(t->ref, parent_sha1)) {
struct commit *parent = lookup_commit(parent_sha1);
if (!parent || parse_commit(parent))
die("Failed to find/parse commit %s", t->ref);
commit_list_insert(parent, &parents);
}
/* else: t->ref points to nothing, assume root/orphan commit */
}
if (commit_tree(msg, tree_sha1, parents, result_sha1, NULL))
die("Failed to commit notes tree to database");
}
int commit_notes(struct notes_tree *t, const char *msg)
{
struct commit_list *parent;
unsigned char tree_sha1[20], prev_commit[20], new_commit[20];
struct strbuf buf = STRBUF_INIT;
if (!t)
t = &default_notes_tree;
if (!t->initialized || !t->ref || !*t->ref)
die("Cannot commit uninitialized/unreferenced notes tree");
if (!t->dirty)
return 0; /* don't have to commit an unchanged tree */
/* Prepare commit message and reflog message */
strbuf_addstr(&buf, "notes: "); /* commit message starts at index 7 */
strbuf_addstr(&buf, msg);
if (buf.buf[buf.len - 1] != '\n')
strbuf_addch(&buf, '\n'); /* Make sure msg ends with newline */
/* Convert notes tree to tree object */
if (write_notes_tree(t, tree_sha1))
die("Failed to write current notes tree to database");
/* Create new commit for the tree object */
if (!read_ref(t->ref, prev_commit)) { /* retrieve parent commit */
parent = xmalloc(sizeof(*parent));
parent->item = lookup_commit(prev_commit);
parent->next = NULL;
} else {
hashclr(prev_commit);
parent = NULL;
}
if (commit_tree(buf.buf + 7, tree_sha1, parent, new_commit, NULL))
die("Failed to commit notes tree to database");
/* Update notes ref with new commit */
update_ref(buf.buf, t->ref, new_commit, prev_commit, 0, DIE_ON_ERR);
strbuf_release(&buf);
return 0;
}
int notes_cache_write(struct notes_cache *c)
{
struct object_id tree_oid, commit_oid;
if (!c || !c->tree.initialized || !c->tree.update_ref ||
!*c->tree.update_ref)
return -1;
if (!c->tree.dirty)
return 0;
if (write_notes_tree(&c->tree, &tree_oid))
return -1;
if (commit_tree(c->validity, strlen(c->validity), &tree_oid, NULL,
&commit_oid, NULL, NULL) < 0)
return -1;
if (update_ref("update notes cache", c->tree.update_ref, &commit_oid,
NULL, 0, UPDATE_REFS_QUIET_ON_ERR) < 0)
return -1;
return 0;
}
int notes_cache_write(struct notes_cache *c)
{
unsigned char tree_sha1[20];
unsigned char commit_sha1[20];
struct strbuf msg = STRBUF_INIT;
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;
strbuf_attach(&msg, c->validity,
strlen(c->validity), strlen(c->validity) + 1);
if (commit_tree(&msg, tree_sha1, NULL, commit_sha1, NULL, 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;
}
