/**
* Get the user who last changed a file.
* @head: head commit to start the search.
* @path: path of the file.
*/
char *
get_last_changer_of_file (const char *head, const char *path)
{
char commit_id[41];
SeafCommit *commit = NULL;
char *file_id = NULL;
int changed;
char *ret = NULL;
GError *error = NULL;
memcpy (commit_id, head, 41);
while (1) {
commit = seaf_commit_manager_get_commit (seaf->commit_mgr, commit_id);
if (!commit)
break;
/* We hit the initial commit. */
if (!commit->parent_id)
break;
file_id = seaf_fs_manager_path_to_obj_id (seaf->fs_mgr,
commit->root_id,
path,
NULL,
&error);
if (error) {
g_clear_error (&error);
break;
}
/* We expect commit to have this file. */
if (!file_id)
break;
changed = diff_parents_with_path (commit, path, file_id,
commit_id, &error);
if (error) {
g_clear_error (&error);
break;
}
if (changed) {
ret = g_strdup (commit->creator_name);
break;
} else {
/* If this commit doesn't change the file, commit_id will be set
* to the parent commit to traverse.
*/
g_free (file_id);
seaf_commit_unref (commit);
}
}
g_free (file_id);
if (commit)
seaf_commit_unref (commit);
return ret;
}
static int
get_file_modifier_mtime_v0 (const char *repo_id, const char *store_id, int version,
const char *head, const char *path,
char **modifier, gint64 *mtime)
{
char commit_id[41];
SeafCommit *commit = NULL;
char *file_id = NULL;
int changed;
int ret = 0;
GError *error = NULL;
*modifier = NULL;
*mtime = 0;
memcpy (commit_id, head, 41);
while (1) {
commit = seaf_commit_manager_get_commit (seaf->commit_mgr,
repo_id, version,
commit_id);
if (!commit) {
ret = -1;
break;
}
/* We hit the initial commit. */
if (!commit->parent_id)
break;
file_id = seaf_fs_manager_path_to_obj_id (seaf->fs_mgr,
store_id, version,
commit->root_id,
path,
NULL,
&error);
if (error) {
g_clear_error (&error);
ret = -1;
break;
}
/* We expect commit to have this file. */
if (!file_id) {
ret = -1;
break;
}
changed = diff_parents_with_path (commit,
repo_id, store_id, version,
path, file_id,
commit_id, &error);
if (error) {
g_clear_error (&error);
ret = -1;
break;
}
if (changed) {
*modifier = g_strdup (commit->creator_name);
*mtime = commit->ctime;
break;
} else {
/* If this commit doesn't change the file, commit_id will be set
* to the parent commit to traverse.
*/
g_free (file_id);
seaf_commit_unref (commit);
}
}
g_free (file_id);
if (commit)
seaf_commit_unref (commit);
return ret;
}
