Merge branch 'rb/hpe'
[git.git] / ls-refs.c
bloba06f12eca8d6f9816c481f1f445791388d53039c
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"
9 /*
10 * Check if one of the prefixes is a prefix of the ref.
11 * If no prefixes were provided, all refs match.
13 static int ref_match(const struct argv_array *prefixes, const char *refname)
15 int i;
17 if (!prefixes->argc)
18 return 1; /* no restriction */
20 for (i = 0; i < prefixes->argc; i++) {
21 const char *prefix = prefixes->argv[i];
23 if (starts_with(refname, prefix))
24 return 1;
27 return 0;
30 struct ls_refs_data {
31 unsigned peel;
32 unsigned symrefs;
33 struct argv_array prefixes;
36 static int send_ref(const char *refname, const struct object_id *oid,
37 int flag, void *cb_data)
39 struct ls_refs_data *data = cb_data;
40 const char *refname_nons = strip_namespace(refname);
41 struct strbuf refline = STRBUF_INIT;
43 if (!ref_match(&data->prefixes, refname))
44 return 0;
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);
53 if (!symref_target)
54 die("'%s' is a symref but it is not?", refname);
56 strbuf_addf(&refline, " symref-target:%s", symref_target);
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));
65 strbuf_addch(&refline, '\n');
66 packet_write(1, refline.buf, refline.len);
68 strbuf_release(&refline);
69 return 0;
72 int ls_refs(struct repository *r, struct argv_array *keys,
73 struct packet_reader *request)
75 struct ls_refs_data data;
77 memset(&data, 0, sizeof(data));
79 while (packet_reader_read(request) != PACKET_READ_FLUSH) {
80 const char *arg = request->line;
81 const char *out;
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);
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;