1#include "builtin.h"
2#include "pkt-line.h"
3#include "fetch-pack.h"
4#include "remote.h"
5#include "connect.h"
6#include "sha1-array.h"
7#include "protocol.h"
8static const char fetch_pack_usage[] =
10"git fetch-pack [--all] [--stdin] [--quiet | -q] [--keep | -k] [--thin] "
11"[--include-tag] [--upload-pack=<git-upload-pack>] [--depth=<n>] "
12"[--no-progress] [--diag-url] [-v] [<host>:]<directory> [<refs>...]";
13static void add_sought_entry(struct ref ***sought, int *nr, int *alloc,
15 const char *name)
16{
17 struct ref *ref;
18 struct object_id oid;
19 if (!get_oid_hex(name, &oid)) {
21 if (name[GIT_SHA1_HEXSZ] == ' ') {
22 /* <sha1> <ref>, find refname */
23 name += GIT_SHA1_HEXSZ + 1;
24 } else if (name[GIT_SHA1_HEXSZ] == '\0') {
25 ; /* <sha1>, leave sha1 as name */
26 } else {
27 /* <ref>, clear cruft from oid */
28 oidclr(&oid);
29 }
30 } else {
31 /* <ref>, clear cruft from get_oid_hex */
32 oidclr(&oid);
33 }
34 ref = alloc_ref(name);
36 oidcpy(&ref->old_oid, &oid);
37 (*nr)++;
38 ALLOC_GROW(*sought, *nr, *alloc);
39 (*sought)[*nr - 1] = ref;
40}
41int cmd_fetch_pack(int argc, const char **argv, const char *prefix)
43{
44 int i, ret;
45 struct ref *ref = NULL;
46 const char *dest = NULL;
47 struct ref **sought = NULL;
48 int nr_sought = 0, alloc_sought = 0;
49 int fd[2];
50 char *pack_lockfile = NULL;
51 char **pack_lockfile_ptr = NULL;
52 struct child_process *conn;
53 struct fetch_pack_args args;
54 struct oid_array shallow = OID_ARRAY_INIT;
55 struct string_list deepen_not = STRING_LIST_INIT_DUP;
56 struct packet_reader reader;
57 fetch_if_missing = 0;
59 packet_trace_identity("fetch-pack");
61 memset(&args, 0, sizeof(args));
63 args.uploadpack = "git-upload-pack";
64 for (i = 1; i < argc && *argv[i] == '-'; i++) {
66 const char *arg = argv[i];
67 if (skip_prefix(arg, "--upload-pack=", &arg)) {
69 args.uploadpack = arg;
70 continue;
71 }
72 if (skip_prefix(arg, "--exec=", &arg)) {
73 args.uploadpack = arg;
74 continue;
75 }
76 if (!strcmp("--quiet", arg) || !strcmp("-q", arg)) {
77 args.quiet = 1;
78 continue;
79 }
80 if (!strcmp("--keep", arg) || !strcmp("-k", arg)) {
81 args.lock_pack = args.keep_pack;
82 args.keep_pack = 1;
83 continue;
84 }
85 if (!strcmp("--thin", arg)) {
86 args.use_thin_pack = 1;
87 continue;
88 }
89 if (!strcmp("--include-tag", arg)) {
90 args.include_tag = 1;
91 continue;
92 }
93 if (!strcmp("--all", arg)) {
94 args.fetch_all = 1;
95 continue;
96 }
97 if (!strcmp("--stdin", arg)) {
98 args.stdin_refs = 1;
99 continue;
100 }
101 if (!strcmp("--diag-url", arg)) {
102 args.diag_url = 1;
103 continue;
104 }
105 if (!strcmp("-v", arg)) {
106 args.verbose = 1;
107 continue;
108 }
109 if (skip_prefix(arg, "--depth=", &arg)) {
110 args.depth = strtol(arg, NULL, 0);
111 continue;
112 }
113 if (skip_prefix(arg, "--shallow-since=", &arg)) {
114 args.deepen_since = xstrdup(arg);
115 continue;
116 }
117 if (skip_prefix(arg, "--shallow-exclude=", &arg)) {
118 string_list_append(&deepen_not, arg);
119 continue;
120 }
121 if (!strcmp(arg, "--deepen-relative")) {
122 args.deepen_relative = 1;
123 continue;
124 }
125 if (!strcmp("--no-progress", arg)) {
126 args.no_progress = 1;
127 continue;
128 }
129 if (!strcmp("--stateless-rpc", arg)) {
130 args.stateless_rpc = 1;
131 continue;
132 }
133 if (!strcmp("--lock-pack", arg)) {
134 args.lock_pack = 1;
135 pack_lockfile_ptr = &pack_lockfile;
136 continue;
137 }
138 if (!strcmp("--check-self-contained-and-connected", arg)) {
139 args.check_self_contained_and_connected = 1;
140 continue;
141 }
142 if (!strcmp("--cloning", arg)) {
143 args.cloning = 1;
144 continue;
145 }
146 if (!strcmp("--update-shallow", arg)) {
147 args.update_shallow = 1;
148 continue;
149 }
150 if (!strcmp("--from-promisor", arg)) {
151 args.from_promisor = 1;
152 continue;
153 }
154 if (!strcmp("--no-dependents", arg)) {
155 args.no_dependents = 1;
156 continue;
157 }
158 if (skip_prefix(arg, ("--" CL_ARG__FILTER "="), &arg)) {
159 parse_list_objects_filter(&args.filter_options, arg);
160 continue;
161 }
162 if (!strcmp(arg, ("--no-" CL_ARG__FILTER))) {
163 list_objects_filter_set_no_filter(&args.filter_options);
164 continue;
165 }
166 usage(fetch_pack_usage);
167 }
168 if (deepen_not.nr)
169 args.deepen_not = &deepen_not;
170 if (i < argc)
172 dest = argv[i++];
173 else
174 usage(fetch_pack_usage);
175 /*
177 * Copy refs from cmdline to growable list, then append any
178 * refs from the standard input:
179 */
180 for (; i < argc; i++)
181 add_sought_entry(&sought, &nr_sought, &alloc_sought, argv[i]);
182 if (args.stdin_refs) {
183 if (args.stateless_rpc) {
184 /* in stateless RPC mode we use pkt-line to read
185 * from stdin, until we get a flush packet
186 */
187 for (;;) {
188 char *line = packet_read_line(0, NULL);
189 if (!line)
190 break;
191 add_sought_entry(&sought, &nr_sought, &alloc_sought, line);
192 }
193 }
194 else {
195 /* read from stdin one ref per line, until EOF */
196 struct strbuf line = STRBUF_INIT;
197 while (strbuf_getline_lf(&line, stdin) != EOF)
198 add_sought_entry(&sought, &nr_sought, &alloc_sought, line.buf);
199 strbuf_release(&line);
200 }
201 }
202 if (args.stateless_rpc) {
204 conn = NULL;
205 fd[0] = 0;
206 fd[1] = 1;
207 } else {
208 int flags = args.verbose ? CONNECT_VERBOSE : 0;
209 if (args.diag_url)
210 flags |= CONNECT_DIAG_URL;
211 conn = git_connect(fd, dest, args.uploadpack,
212 flags);
213 if (!conn)
214 return args.diag_url ? 0 : 1;
215 }
216 packet_reader_init(&reader, fd[0], NULL, 0,
218 PACKET_READ_CHOMP_NEWLINE |
219 PACKET_READ_GENTLE_ON_EOF);
220 switch (discover_version(&reader)) {
222 case protocol_v2:
223 die("support for protocol v2 not implemented yet");
224 case protocol_v1:
225 case protocol_v0:
226 get_remote_heads(&reader, &ref, 0, NULL, &shallow);
227 break;
228 case protocol_unknown_version:
229 BUG("unknown protocol version");
230 }
231 ref = fetch_pack(&args, fd, conn, ref, dest, sought, nr_sought,
233 &shallow, pack_lockfile_ptr, protocol_v0);
234 if (pack_lockfile) {
235 printf("lock %s\n", pack_lockfile);
236 fflush(stdout);
237 }
238 if (args.check_self_contained_and_connected &&
239 args.self_contained_and_connected) {
240 printf("connectivity-ok\n");
241 fflush(stdout);
242 }
243 close(fd[0]);
244 close(fd[1]);
245 if (finish_connect(conn))
246 return 1;
247 ret = !ref;
249 /*
251 * If the heads to pull were given, we should have consumed
252 * all of them by matching the remote. Otherwise, 'git fetch
253 * remote no-such-ref' would silently succeed without issuing
254 * an error.
255 */
256 ret |= report_unmatched_refs(sought, nr_sought);
257 while (ref) {
259 printf("%s %s\n",
260 oid_to_hex(&ref->old_oid), ref->name);
261 ref = ref->next;
262 }
263 return ret;
265}