07570bee2d367937cba1023156f64b04b9095bdd
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_mem(struct ref ***sought, int *nr, int *alloc,
14 const char *name, int namelen)
15{
16 struct ref *ref = xcalloc(1, sizeof(*ref) + namelen + 1);
17 struct object_id oid;
18 const int chunksz = GIT_SHA1_HEXSZ + 1;
19 if (namelen > chunksz && name[chunksz - 1] == ' ' &&
21 !get_oid_hex(name, &oid)) {
22 oidcpy(&ref->old_oid, &oid);
23 name += chunksz;
24 namelen -= chunksz;
25 }
26 memcpy(ref->name, name, namelen);
28 ref->name[namelen] = '\0';
29 (*nr)++;
30 ALLOC_GROW(*sought, *nr, *alloc);
31 (*sought)[*nr - 1] = ref;
32}
33static void add_sought_entry(struct ref ***sought, int *nr, int *alloc,
35 const char *string)
36{
37 add_sought_entry_mem(sought, nr, alloc, string, strlen(string));
38}
39int cmd_fetch_pack(int argc, const char **argv, const char *prefix)
41{
42 int i, ret;
43 struct ref *ref = NULL;
44 const char *dest = NULL;
45 struct ref **sought = NULL;
46 int nr_sought = 0, alloc_sought = 0;
47 int fd[2];
48 char *pack_lockfile = NULL;
49 char **pack_lockfile_ptr = NULL;
50 struct child_process *conn;
51 struct fetch_pack_args args;
52 struct sha1_array shallow = SHA1_ARRAY_INIT;
53 struct string_list deepen_not = STRING_LIST_INIT_DUP;
54 packet_trace_identity("fetch-pack");
56 memset(&args, 0, sizeof(args));
58 args.uploadpack = "git-upload-pack";
59 for (i = 1; i < argc && *argv[i] == '-'; i++) {
61 const char *arg = argv[i];
62 if (skip_prefix(arg, "--upload-pack=", &arg)) {
64 args.uploadpack = arg;
65 continue;
66 }
67 if (skip_prefix(arg, "--exec=", &arg)) {
68 args.uploadpack = arg;
69 continue;
70 }
71 if (!strcmp("--quiet", arg) || !strcmp("-q", arg)) {
72 args.quiet = 1;
73 continue;
74 }
75 if (!strcmp("--keep", arg) || !strcmp("-k", arg)) {
76 args.lock_pack = args.keep_pack;
77 args.keep_pack = 1;
78 continue;
79 }
80 if (!strcmp("--thin", arg)) {
81 args.use_thin_pack = 1;
82 continue;
83 }
84 if (!strcmp("--include-tag", arg)) {
85 args.include_tag = 1;
86 continue;
87 }
88 if (!strcmp("--all", arg)) {
89 args.fetch_all = 1;
90 continue;
91 }
92 if (!strcmp("--stdin", arg)) {
93 args.stdin_refs = 1;
94 continue;
95 }
96 if (!strcmp("--diag-url", arg)) {
97 args.diag_url = 1;
98 continue;
99 }
100 if (!strcmp("-v", arg)) {
101 args.verbose = 1;
102 continue;
103 }
104 if (skip_prefix(arg, "--depth=", &arg)) {
105 args.depth = strtol(arg, NULL, 0);
106 continue;
107 }
108 if (skip_prefix(arg, "--shallow-since=", &arg)) {
109 args.deepen_since = xstrdup(arg);
110 continue;
111 }
112 if (skip_prefix(arg, "--shallow-exclude=", &arg)) {
113 string_list_append(&deepen_not, arg);
114 continue;
115 }
116 if (!strcmp("--no-progress", arg)) {
117 args.no_progress = 1;
118 continue;
119 }
120 if (!strcmp("--stateless-rpc", arg)) {
121 args.stateless_rpc = 1;
122 continue;
123 }
124 if (!strcmp("--lock-pack", arg)) {
125 args.lock_pack = 1;
126 pack_lockfile_ptr = &pack_lockfile;
127 continue;
128 }
129 if (!strcmp("--check-self-contained-and-connected", arg)) {
130 args.check_self_contained_and_connected = 1;
131 continue;
132 }
133 if (!strcmp("--cloning", arg)) {
134 args.cloning = 1;
135 continue;
136 }
137 if (!strcmp("--update-shallow", arg)) {
138 args.update_shallow = 1;
139 continue;
140 }
141 usage(fetch_pack_usage);
142 }
143 if (deepen_not.nr)
144 args.deepen_not = &deepen_not;
145 if (i < argc)
147 dest = argv[i++];
148 else
149 usage(fetch_pack_usage);
150 /*
152 * Copy refs from cmdline to growable list, then append any
153 * refs from the standard input:
154 */
155 for (; i < argc; i++)
156 add_sought_entry(&sought, &nr_sought, &alloc_sought, argv[i]);
157 if (args.stdin_refs) {
158 if (args.stateless_rpc) {
159 /* in stateless RPC mode we use pkt-line to read
160 * from stdin, until we get a flush packet
161 */
162 for (;;) {
163 char *line = packet_read_line(0, NULL);
164 if (!line)
165 break;
166 add_sought_entry(&sought, &nr_sought, &alloc_sought, line);
167 }
168 }
169 else {
170 /* read from stdin one ref per line, until EOF */
171 struct strbuf line = STRBUF_INIT;
172 while (strbuf_getline_lf(&line, stdin) != EOF)
173 add_sought_entry(&sought, &nr_sought, &alloc_sought, line.buf);
174 strbuf_release(&line);
175 }
176 }
177 if (args.stateless_rpc) {
179 conn = NULL;
180 fd[0] = 0;
181 fd[1] = 1;
182 } else {
183 int flags = args.verbose ? CONNECT_VERBOSE : 0;
184 if (args.diag_url)
185 flags |= CONNECT_DIAG_URL;
186 conn = git_connect(fd, dest, args.uploadpack,
187 flags);
188 if (!conn)
189 return args.diag_url ? 0 : 1;
190 }
191 get_remote_heads(fd[0], NULL, 0, &ref, 0, NULL, &shallow);
192 ref = fetch_pack(&args, fd, conn, ref, dest, sought, nr_sought,
194 &shallow, pack_lockfile_ptr);
195 if (pack_lockfile) {
196 printf("lock %s\n", pack_lockfile);
197 fflush(stdout);
198 }
199 if (args.check_self_contained_and_connected &&
200 args.self_contained_and_connected) {
201 printf("connectivity-ok\n");
202 fflush(stdout);
203 }
204 close(fd[0]);
205 close(fd[1]);
206 if (finish_connect(conn))
207 return 1;
208 ret = !ref;
210 /*
212 * If the heads to pull were given, we should have consumed
213 * all of them by matching the remote. Otherwise, 'git fetch
214 * remote no-such-ref' would silently succeed without issuing
215 * an error.
216 */
217 for (i = 0; i < nr_sought; i++) {
218 if (!sought[i] || sought[i]->matched)
219 continue;
220 error("no such remote ref %s", sought[i]->name);
221 ret = 1;
222 }
223 while (ref) {
225 printf("%s %s\n",
226 oid_to_hex(&ref->old_oid), ref->name);
227 ref = ref->next;
228 }
229 return ret;
231}