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"
7static const char fetch_pack_usage[] =
9"git fetch-pack [--all] [--stdin] [--quiet | -q] [--keep | -k] [--thin] "
10"[--include-tag] [--upload-pack=<git-upload-pack>] [--depth=<n>] "
11"[--no-progress] [--diag-url] [-v] [<host>:]<directory> [<refs>...]";
12static void add_sought_entry(struct ref ***sought, int *nr, int *alloc,
14 const char *name)
15{
16 struct ref *ref;
17 struct object_id oid;
18 if (!get_oid_hex(name, &oid)) {
20 if (name[GIT_SHA1_HEXSZ] == ' ') {
21 /* <sha1> <ref>, find refname */
22 name += GIT_SHA1_HEXSZ + 1;
23 } else if (name[GIT_SHA1_HEXSZ] == '\0') {
24 ; /* <sha1>, leave sha1 as name */
25 } else {
26 /* <ref>, clear cruft from oid */
27 oidclr(&oid);
28 }
29 } else {
30 /* <ref>, clear cruft from get_oid_hex */
31 oidclr(&oid);
32 }
33 ref = alloc_ref(name);
35 oidcpy(&ref->old_oid, &oid);
36 (*nr)++;
37 ALLOC_GROW(*sought, *nr, *alloc);
38 (*sought)[*nr - 1] = ref;
39}
40int cmd_fetch_pack(int argc, const char **argv, const char *prefix)
42{
43 int i, ret;
44 struct ref *ref = NULL;
45 const char *dest = NULL;
46 struct ref **sought = NULL;
47 int nr_sought = 0, alloc_sought = 0;
48 int fd[2];
49 char *pack_lockfile = NULL;
50 char **pack_lockfile_ptr = NULL;
51 struct child_process *conn;
52 struct fetch_pack_args args;
53 struct sha1_array shallow = SHA1_ARRAY_INIT;
54 struct string_list deepen_not = STRING_LIST_INIT_DUP;
55 packet_trace_identity("fetch-pack");
57 memset(&args, 0, sizeof(args));
59 args.uploadpack = "git-upload-pack";
60 for (i = 1; i < argc && *argv[i] == '-'; i++) {
62 const char *arg = argv[i];
63 if (skip_prefix(arg, "--upload-pack=", &arg)) {
65 args.uploadpack = arg;
66 continue;
67 }
68 if (skip_prefix(arg, "--exec=", &arg)) {
69 args.uploadpack = arg;
70 continue;
71 }
72 if (!strcmp("--quiet", arg) || !strcmp("-q", arg)) {
73 args.quiet = 1;
74 continue;
75 }
76 if (!strcmp("--keep", arg) || !strcmp("-k", arg)) {
77 args.lock_pack = args.keep_pack;
78 args.keep_pack = 1;
79 continue;
80 }
81 if (!strcmp("--thin", arg)) {
82 args.use_thin_pack = 1;
83 continue;
84 }
85 if (!strcmp("--include-tag", arg)) {
86 args.include_tag = 1;
87 continue;
88 }
89 if (!strcmp("--all", arg)) {
90 args.fetch_all = 1;
91 continue;
92 }
93 if (!strcmp("--stdin", arg)) {
94 args.stdin_refs = 1;
95 continue;
96 }
97 if (!strcmp("--diag-url", arg)) {
98 args.diag_url = 1;
99 continue;
100 }
101 if (!strcmp("-v", arg)) {
102 args.verbose = 1;
103 continue;
104 }
105 if (skip_prefix(arg, "--depth=", &arg)) {
106 args.depth = strtol(arg, NULL, 0);
107 continue;
108 }
109 if (skip_prefix(arg, "--shallow-since=", &arg)) {
110 args.deepen_since = xstrdup(arg);
111 continue;
112 }
113 if (skip_prefix(arg, "--shallow-exclude=", &arg)) {
114 string_list_append(&deepen_not, arg);
115 continue;
116 }
117 if (!strcmp(arg, "--deepen-relative")) {
118 args.deepen_relative = 1;
119 continue;
120 }
121 if (!strcmp("--no-progress", arg)) {
122 args.no_progress = 1;
123 continue;
124 }
125 if (!strcmp("--stateless-rpc", arg)) {
126 args.stateless_rpc = 1;
127 continue;
128 }
129 if (!strcmp("--lock-pack", arg)) {
130 args.lock_pack = 1;
131 pack_lockfile_ptr = &pack_lockfile;
132 continue;
133 }
134 if (!strcmp("--check-self-contained-and-connected", arg)) {
135 args.check_self_contained_and_connected = 1;
136 continue;
137 }
138 if (!strcmp("--cloning", arg)) {
139 args.cloning = 1;
140 continue;
141 }
142 if (!strcmp("--update-shallow", arg)) {
143 args.update_shallow = 1;
144 continue;
145 }
146 usage(fetch_pack_usage);
147 }
148 if (deepen_not.nr)
149 args.deepen_not = &deepen_not;
150 if (i < argc)
152 dest = argv[i++];
153 else
154 usage(fetch_pack_usage);
155 /*
157 * Copy refs from cmdline to growable list, then append any
158 * refs from the standard input:
159 */
160 for (; i < argc; i++)
161 add_sought_entry(&sought, &nr_sought, &alloc_sought, argv[i]);
162 if (args.stdin_refs) {
163 if (args.stateless_rpc) {
164 /* in stateless RPC mode we use pkt-line to read
165 * from stdin, until we get a flush packet
166 */
167 for (;;) {
168 char *line = packet_read_line(0, NULL);
169 if (!line)
170 break;
171 add_sought_entry(&sought, &nr_sought, &alloc_sought, line);
172 }
173 }
174 else {
175 /* read from stdin one ref per line, until EOF */
176 struct strbuf line = STRBUF_INIT;
177 while (strbuf_getline_lf(&line, stdin) != EOF)
178 add_sought_entry(&sought, &nr_sought, &alloc_sought, line.buf);
179 strbuf_release(&line);
180 }
181 }
182 if (args.stateless_rpc) {
184 conn = NULL;
185 fd[0] = 0;
186 fd[1] = 1;
187 } else {
188 int flags = args.verbose ? CONNECT_VERBOSE : 0;
189 if (args.diag_url)
190 flags |= CONNECT_DIAG_URL;
191 conn = git_connect(fd, dest, args.uploadpack,
192 flags);
193 if (!conn)
194 return args.diag_url ? 0 : 1;
195 }
196 get_remote_heads(fd[0], NULL, 0, &ref, 0, NULL, &shallow);
197 ref = fetch_pack(&args, fd, conn, ref, dest, sought, nr_sought,
199 &shallow, pack_lockfile_ptr);
200 if (pack_lockfile) {
201 printf("lock %s\n", pack_lockfile);
202 fflush(stdout);
203 }
204 if (args.check_self_contained_and_connected &&
205 args.self_contained_and_connected) {
206 printf("connectivity-ok\n");
207 fflush(stdout);
208 }
209 close(fd[0]);
210 close(fd[1]);
211 if (finish_connect(conn))
212 return 1;
213 ret = !ref;
215 /*
217 * If the heads to pull were given, we should have consumed
218 * all of them by matching the remote. Otherwise, 'git fetch
219 * remote no-such-ref' would silently succeed without issuing
220 * an error.
221 */
222 for (i = 0; i < nr_sought; i++) {
223 if (!sought[i] || sought[i]->matched)
224 continue;
225 error("no such remote ref %s", sought[i]->name);
226 ret = 1;
227 }
228 while (ref) {
230 printf("%s %s\n",
231 oid_to_hex(&ref->old_oid), ref->name);
232 ref = ref->next;
233 }
234 return ret;
236}