2 #include "repository.h"
10 static int config_read;
11 static int advertise_unborn;
12 static int allow_unborn;
14 static void ensure_config_read(void)
16 const char *str = NULL;
21 if (repo_config_get_string_tmp(the_repository, "lsrefs.unborn", &str)) {
23 * If there is no such config, advertise and allow it by
29 if (!strcmp(str, "advertise")) {
32 } else if (!strcmp(str, "allow")) {
34 } else if (!strcmp(str, "ignore")) {
37 die(_("invalid value '%s' for lsrefs.unborn"), str);
44 * Check if one of the prefixes is a prefix of the ref.
45 * If no prefixes were provided, all refs match.
47 static int ref_match(const struct strvec *prefixes, const char *refname)
52 return 1; /* no restriction */
54 for (i = 0; i < prefixes->nr; i++) {
55 const char *prefix = prefixes->v[i];
57 if (starts_with(refname, prefix))
67 struct strvec prefixes;
71 static int send_ref(const char *refname, const struct object_id *oid,
72 int flag, void *cb_data)
74 struct ls_refs_data *data = cb_data;
75 const char *refname_nons = strip_namespace(refname);
76 struct strbuf refline = STRBUF_INIT;
78 if (ref_is_hidden(refname_nons, refname))
81 if (!ref_match(&data->prefixes, refname_nons))
85 strbuf_addf(&refline, "%s %s", oid_to_hex(oid), refname_nons);
87 strbuf_addf(&refline, "unborn %s", refname_nons);
88 if (data->symrefs && flag & REF_ISSYMREF) {
89 struct object_id unused;
90 const char *symref_target = resolve_ref_unsafe(refname, 0,
95 die("'%s' is a symref but it is not?", refname);
97 strbuf_addf(&refline, " symref-target:%s",
98 strip_namespace(symref_target));
101 if (data->peel && oid) {
102 struct object_id peeled;
103 if (!peel_iterated_oid(oid, &peeled))
104 strbuf_addf(&refline, " peeled:%s", oid_to_hex(&peeled));
107 strbuf_addch(&refline, '\n');
108 packet_write(1, refline.buf, refline.len);
110 strbuf_release(&refline);
114 static void send_possibly_unborn_head(struct ls_refs_data *data)
116 struct strbuf namespaced = STRBUF_INIT;
117 struct object_id oid;
121 strbuf_addf(&namespaced, "%sHEAD", get_git_namespace());
122 if (!resolve_ref_unsafe(namespaced.buf, 0, &oid, &flag))
123 return; /* bad ref */
124 oid_is_null = is_null_oid(&oid);
126 (data->unborn && data->symrefs && (flag & REF_ISSYMREF)))
127 send_ref(namespaced.buf, oid_is_null ? NULL : &oid, flag, data);
128 strbuf_release(&namespaced);
131 static int ls_refs_config(const char *var, const char *value, void *data)
134 * We only serve fetches over v2 for now, so respect only "uploadpack"
135 * config. This may need to eventually be expanded to "receive", but we
136 * don't yet know how that information will be passed to ls-refs.
138 return parse_hide_refs_config(var, value, "uploadpack");
141 int ls_refs(struct repository *r, struct strvec *keys,
142 struct packet_reader *request)
144 struct ls_refs_data data;
146 memset(&data, 0, sizeof(data));
147 strvec_init(&data.prefixes);
149 ensure_config_read();
150 git_config(ls_refs_config, NULL);
152 while (packet_reader_read(request) == PACKET_READ_NORMAL) {
153 const char *arg = request->line;
156 if (!strcmp("peel", arg))
158 else if (!strcmp("symrefs", arg))
160 else if (skip_prefix(arg, "ref-prefix ", &out))
161 strvec_push(&data.prefixes, out);
162 else if (!strcmp("unborn", arg))
163 data.unborn = allow_unborn;
166 if (request->status != PACKET_READ_FLUSH)
167 die(_("expected flush after ls-refs arguments"));
169 send_possibly_unborn_head(&data);
170 if (!data.prefixes.nr)
171 strvec_push(&data.prefixes, "");
172 for_each_fullref_in_prefixes(get_git_namespace(), data.prefixes.v,
175 strvec_clear(&data.prefixes);
179 int ls_refs_advertise(struct repository *r, struct strbuf *value)
182 ensure_config_read();
183 if (advertise_unborn)
184 strbuf_addstr(value, "unborn");