| Brandon Williams | 72d0ea0 | 2018-03-15 17:31:20 | [diff] [blame] | 1 | #include "cache.h" |
| 2 | #include "repository.h" |
| 3 | #include "refs.h" |
| 4 | #include "remote.h" |
| 5 | #include "argv-array.h" |
| 6 | #include "ls-refs.h" |
| 7 | #include "pkt-line.h" |
| 8 | |
| 9 | /* |
| 10 | * Check if one of the prefixes is a prefix of the ref. |
| 11 | * If no prefixes were provided, all refs match. |
| 12 | */ |
| 13 | static int ref_match(const struct argv_array *prefixes, const char *refname) |
| 14 | { |
| 15 | int i; |
| 16 | |
| 17 | if (!prefixes->argc) |
| 18 | return 1; /* no restriction */ |
| 19 | |
| 20 | for (i = 0; i < prefixes->argc; i++) { |
| 21 | const char *prefix = prefixes->argv[i]; |
| 22 | |
| 23 | if (starts_with(refname, prefix)) |
| 24 | return 1; |
| 25 | } |
| 26 | |
| 27 | return 0; |
| 28 | } |
| 29 | |
| 30 | struct ls_refs_data { |
| 31 | unsigned peel; |
| 32 | unsigned symrefs; |
| 33 | struct argv_array prefixes; |
| 34 | }; |
| 35 | |
| 36 | static int send_ref(const char *refname, const struct object_id *oid, |
| 37 | int flag, void *cb_data) |
| 38 | { |
| 39 | struct ls_refs_data *data = cb_data; |
| 40 | const char *refname_nons = strip_namespace(refname); |
| 41 | struct strbuf refline = STRBUF_INIT; |
| 42 | |
| 43 | if (!ref_match(&data->prefixes, refname)) |
| 44 | return 0; |
| 45 | |
| 46 | strbuf_addf(&refline, "%s %s", oid_to_hex(oid), refname_nons); |
| 47 | if (data->symrefs && flag & REF_ISSYMREF) { |
| 48 | struct object_id unused; |
| 49 | const char *symref_target = resolve_ref_unsafe(refname, 0, |
| 50 | &unused, |
| 51 | &flag); |
| 52 | |
| 53 | if (!symref_target) |
| 54 | die("'%s' is a symref but it is not?", refname); |
| 55 | |
| 56 | strbuf_addf(&refline, " symref-target:%s", symref_target); |
| 57 | } |
| 58 | |
| 59 | if (data->peel) { |
| 60 | struct object_id peeled; |
| 61 | if (!peel_ref(refname, &peeled)) |
| 62 | strbuf_addf(&refline, " peeled:%s", oid_to_hex(&peeled)); |
| 63 | } |
| 64 | |
| 65 | strbuf_addch(&refline, '\n'); |
| 66 | packet_write(1, refline.buf, refline.len); |
| 67 | |
| 68 | strbuf_release(&refline); |
| 69 | return 0; |
| 70 | } |
| 71 | |
| 72 | int ls_refs(struct repository *r, struct argv_array *keys, |
| 73 | struct packet_reader *request) |
| 74 | { |
| 75 | struct ls_refs_data data; |
| 76 | |
| 77 | memset(&data, 0, sizeof(data)); |
| 78 | |
| 79 | while (packet_reader_read(request) != PACKET_READ_FLUSH) { |
| 80 | const char *arg = request->line; |
| 81 | const char *out; |
| 82 | |
| 83 | if (!strcmp("peel", arg)) |
| 84 | data.peel = 1; |
| 85 | else if (!strcmp("symrefs", arg)) |
| 86 | data.symrefs = 1; |
| 87 | else if (skip_prefix(arg, "ref-prefix ", &out)) |
| 88 | argv_array_push(&data.prefixes, out); |
| 89 | } |
| 90 | |
| 91 | head_ref_namespaced(send_ref, &data); |
| 92 | for_each_namespaced_ref(send_ref, &data); |
| 93 | packet_flush(1); |
| 94 | argv_array_clear(&data.prefixes); |
| 95 | return 0; |
| 96 | } |
