| #include "cache.h" |
| #include "repository.h" |
| #include "refs.h" |
| #include "remote.h" |
| #include "strvec.h" |
| #include "ls-refs.h" |
| #include "pkt-line.h" |
| #include "config.h" |
| |
| /* |
| * Check if one of the prefixes is a prefix of the ref. |
| * If no prefixes were provided, all refs match. |
| */ |
| static int ref_match(const struct strvec *prefixes, const char *refname) |
| { |
| int i; |
| |
| if (!prefixes->nr) |
| return 1; /* no restriction */ |
| |
| for (i = 0; i < prefixes->nr; i++) { |
| const char *prefix = prefixes->v[i]; |
| |
| if (starts_with(refname, prefix)) |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| struct ls_refs_data { |
| unsigned peel; |
| unsigned symrefs; |
| struct strvec prefixes; |
| }; |
| |
| static int send_ref(const char *refname, const struct object_id *oid, |
| int flag, void *cb_data) |
| { |
| struct ls_refs_data *data = cb_data; |
| const char *refname_nons = strip_namespace(refname); |
| struct strbuf refline = STRBUF_INIT; |
| |
| if (ref_is_hidden(refname_nons, refname)) |
| return 0; |
| |
| if (!ref_match(&data->prefixes, refname_nons)) |
| return 0; |
| |
| strbuf_addf(&refline, "%s %s", oid_to_hex(oid), refname_nons); |
| if (data->symrefs && flag & REF_ISSYMREF) { |
| struct object_id unused; |
| const char *symref_target = resolve_ref_unsafe(refname, 0, |
| &unused, |
| &flag); |
| |
| if (!symref_target) |
| die("'%s' is a symref but it is not?", refname); |
| |
| strbuf_addf(&refline, " symref-target:%s", |
| strip_namespace(symref_target)); |
| } |
| |
| if (data->peel) { |
| struct object_id peeled; |
| if (!peel_ref(refname, &peeled)) |
| strbuf_addf(&refline, " peeled:%s", oid_to_hex(&peeled)); |
| } |
| |
| strbuf_addch(&refline, '\n'); |
| packet_write(1, refline.buf, refline.len); |
| |
| strbuf_release(&refline); |
| return 0; |
| } |
| |
| static int ls_refs_config(const char *var, const char *value, void *data) |
| { |
| /* |
| * We only serve fetches over v2 for now, so respect only "uploadpack" |
| * config. This may need to eventually be expanded to "receive", but we |
| * don't yet know how that information will be passed to ls-refs. |
| */ |
| return parse_hide_refs_config(var, value, "uploadpack"); |
| } |
| |
| int ls_refs(struct repository *r, struct strvec *keys, |
| struct packet_reader *request) |
| { |
| struct ls_refs_data data; |
| |
| memset(&data, 0, sizeof(data)); |
| |
| git_config(ls_refs_config, NULL); |
| |
| while (packet_reader_read(request) == PACKET_READ_NORMAL) { |
| const char *arg = request->line; |
| const char *out; |
| |
| if (!strcmp("peel", arg)) |
| data.peel = 1; |
| else if (!strcmp("symrefs", arg)) |
| data.symrefs = 1; |
| else if (skip_prefix(arg, "ref-prefix ", &out)) |
| strvec_push(&data.prefixes, out); |
| } |
| |
| if (request->status != PACKET_READ_FLUSH) |
| die(_("expected flush after ls-refs arguments")); |
| |
| head_ref_namespaced(send_ref, &data); |
| for_each_namespaced_ref(send_ref, &data); |
| packet_flush(1); |
| strvec_clear(&data.prefixes); |
| return 0; |
| } |