freshlybakedca.ke
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1#define USE_THE_REPOSITORY_VARIABLE
2#include "builtin.h"
3#include "gettext.h"
4#include "hex.h"
5#include "transport.h"
6#include "pkt-line.h"
7#include "ref-filter.h"
8#include "remote.h"
9#include "parse-options.h"
10#include "wildmatch.h"
11
12static const char * const ls_remote_usage[] = {
13 N_("git ls-remote [--branches] [--tags] [--refs] [--upload-pack=<exec>]\n"
14 " [-q | --quiet] [--exit-code] [--get-url] [--sort=<key>]\n"
15 " [--symref] [<repository> [<patterns>...]]"),
16 NULL
17};
18
19/*
20 * Is there one among the list of patterns that match the tail part
21 * of the path?
22 */
23static int tail_match(const struct strvec *pattern, const char *path)
24{
25 char *pathbuf;
26
27 if (!pattern->nr)
28 return 1; /* no restriction */
29
30 pathbuf = xstrfmt("/%s", path);
31 for (size_t i = 0; i < pattern->nr; i++) {
32 if (!wildmatch(pattern->v[i], pathbuf, 0)) {
33 free(pathbuf);
34 return 1;
35 }
36 }
37 free(pathbuf);
38 return 0;
39}
40
41int cmd_ls_remote(int argc,
42 const char **argv,
43 const char *prefix,
44 struct repository *repo UNUSED)
45{
46 const char *dest = NULL;
47 unsigned flags = 0;
48 int get_url = 0;
49 int quiet = 0;
50 int status = 0;
51 int show_symref_target = 0;
52 const char *uploadpack = NULL;
53 struct strvec pattern = STRVEC_INIT;
54 struct transport_ls_refs_options transport_options =
55 TRANSPORT_LS_REFS_OPTIONS_INIT;
56 int i;
57 struct string_list server_options = STRING_LIST_INIT_DUP;
58
59 struct remote *remote;
60 struct transport *transport;
61 const struct ref *ref;
62 struct ref_array ref_array;
63 struct ref_sorting *sorting;
64 struct string_list sorting_options = STRING_LIST_INIT_DUP;
65
66 struct option options[] = {
67 OPT__QUIET(&quiet, N_("do not print remote URL")),
68 OPT_STRING(0, "upload-pack", &uploadpack, N_("exec"),
69 N_("path of git-upload-pack on the remote host")),
70 {
71 .type = OPTION_STRING,
72 .long_name = "exec",
73 .value = &uploadpack,
74 .argh = N_("exec"),
75 .help = N_("path of git-upload-pack on the remote host"),
76 .flags = PARSE_OPT_HIDDEN,
77 },
78 OPT_BIT('t', "tags", &flags, N_("limit to tags"), REF_TAGS),
79 OPT_BIT('b', "branches", &flags, N_("limit to branches"), REF_BRANCHES),
80 OPT_BIT_F('h', "heads", &flags,
81 N_("deprecated synonym for --branches"), REF_BRANCHES,
82 PARSE_OPT_HIDDEN),
83 OPT_BIT(0, "refs", &flags, N_("do not show peeled tags"), REF_NORMAL),
84 OPT_BOOL(0, "get-url", &get_url,
85 N_("take url.<base>.insteadOf into account")),
86 OPT_REF_SORT(&sorting_options),
87 OPT_SET_INT_F(0, "exit-code", &status,
88 N_("exit with exit code 2 if no matching refs are found"),
89 2, PARSE_OPT_NOCOMPLETE),
90 OPT_BOOL(0, "symref", &show_symref_target,
91 N_("show underlying ref in addition to the object pointed by it")),
92 OPT_STRING_LIST('o', "server-option", &server_options, N_("server-specific"), N_("option to transmit")),
93 OPT_END()
94 };
95
96 memset(&ref_array, 0, sizeof(ref_array));
97
98 argc = parse_options(argc, argv, prefix, options, ls_remote_usage,
99 PARSE_OPT_STOP_AT_NON_OPTION);
100 dest = argv[0];
101
102 /*
103 * TODO: This is buggy, but required for transport helpers. When a
104 * transport helper advertises a "refspec", then we'd add that to a
105 * list of refspecs via `refspec_append()`, which transitively depends
106 * on `the_hash_algo`. Thus, when the hash algorithm isn't properly set
107 * up, this would lead to a segfault.
108 *
109 * We really should fix this in the transport helper logic such that we
110 * lazily parse refspec capabilities _after_ we have learned about the
111 * remote's object format. Otherwise, we may end up misparsing refspecs
112 * depending on what object hash the remote uses.
113 */
114 if (!the_repository->hash_algo)
115 repo_set_hash_algo(the_repository, GIT_HASH_DEFAULT);
116
117 packet_trace_identity("ls-remote");
118
119 for (int i = 1; i < argc; i++)
120 strvec_pushf(&pattern, "*/%s", argv[i]);
121
122 if (flags & REF_TAGS)
123 strvec_push(&transport_options.ref_prefixes, "refs/tags/");
124 if (flags & REF_BRANCHES)
125 strvec_push(&transport_options.ref_prefixes, "refs/heads/");
126
127 remote = remote_get(dest);
128 if (!remote) {
129 if (dest)
130 die("bad repository '%s'", dest);
131 die("No remote configured to list refs from.");
132 }
133
134 if (get_url) {
135 printf("%s\n", remote->url.v[0]);
136 return 0;
137 }
138
139 transport = transport_get(remote, NULL);
140 if (uploadpack)
141 transport_set_option(transport, TRANS_OPT_UPLOADPACK, uploadpack);
142 if (server_options.nr)
143 transport->server_options = &server_options;
144
145 ref = transport_get_remote_refs(transport, &transport_options);
146 if (ref) {
147 int hash_algo = hash_algo_by_ptr(transport_get_hash_algo(transport));
148 repo_set_hash_algo(the_repository, hash_algo);
149 }
150
151 if (!dest && !quiet)
152 fprintf(stderr, "From %s\n", remote->url.v[0]);
153 for ( ; ref; ref = ref->next) {
154 struct ref_array_item *item;
155 if (!check_ref_type(ref, flags))
156 continue;
157 if (!tail_match(&pattern, ref->name))
158 continue;
159 item = ref_array_push(&ref_array, ref->name, &ref->old_oid);
160 item->symref = xstrdup_or_null(ref->symref);
161 }
162
163 sorting = ref_sorting_options(&sorting_options);
164 ref_array_sort(sorting, &ref_array);
165
166 for (i = 0; i < ref_array.nr; i++) {
167 const struct ref_array_item *ref = ref_array.items[i];
168 if (show_symref_target && ref->symref)
169 printf("ref: %s\t%s\n", ref->symref, ref->refname);
170 printf("%s\t%s\n", oid_to_hex(&ref->objectname), ref->refname);
171 status = 0; /* we found something */
172 }
173
174 string_list_clear(&server_options, 0);
175 ref_sorting_release(sorting);
176 ref_array_clear(&ref_array);
177 if (transport_disconnect(transport))
178 status = 1;
179 transport_ls_refs_options_release(&transport_options);
180
181 strvec_clear(&pattern);
182 string_list_clear(&server_options, 0);
183 return status;
184}