| #include "cache.h" |
| #include "remote.h" |
| #include "checkout.h" |
| |
| struct tracking_name_data { |
| /* const */ char *src_ref; |
| char *dst_ref; |
| struct object_id *dst_oid; |
| int unique; |
| }; |
| |
| static int check_tracking_name(struct remote *remote, void *cb_data) |
| { |
| struct tracking_name_data *cb = cb_data; |
| struct refspec query; |
| memset(&query, 0, sizeof(struct refspec)); |
| query.src = cb->src_ref; |
| if (remote_find_tracking(remote, &query) || |
| get_oid(query.dst, cb->dst_oid)) { |
| free(query.dst); |
| return 0; |
| } |
| if (cb->dst_ref) { |
| free(query.dst); |
| cb->unique = 0; |
| return 0; |
| } |
| cb->dst_ref = query.dst; |
| return 0; |
| } |
| |
| const char *unique_tracking_name(const char *name, struct object_id *oid) |
| { |
| struct tracking_name_data cb_data = { NULL, NULL, NULL, 1 }; |
| cb_data.src_ref = xstrfmt("refs/heads/%s", name); |
| cb_data.dst_oid = oid; |
| for_each_remote(check_tracking_name, &cb_data); |
| free(cb_data.src_ref); |
| if (cb_data.unique) |
| return cb_data.dst_ref; |
| free(cb_data.dst_ref); |
| return NULL; |
| } |