clone: open a shortcut for connectivity check
[git/git.git] / builtin / fetch-pack.c
CommitLineData
c2e86add 1#include "builtin.h"
def88e9a 2#include "pkt-line.h"
2d4177c0 3#include "fetch-pack.h"
fa740529 4
33b83034 5static const char fetch_pack_usage[] =
078b895f
IT
6"git fetch-pack [--all] [--stdin] [--quiet|-q] [--keep|-k] [--thin] "
7"[--include-tag] [--upload-pack=<git-upload-pack>] [--depth=<n>] "
8"[--no-progress] [-v] [<host>:]<directory> [<refs>...]";
def88e9a 9
f2db854d
JH
10static void add_sought_entry_mem(struct ref ***sought, int *nr, int *alloc,
11 const char *name, int namelen)
12{
13 struct ref *ref = xcalloc(1, sizeof(*ref) + namelen + 1);
14
15 memcpy(ref->name, name, namelen);
16 ref->name[namelen] = '\0';
17 (*nr)++;
18 ALLOC_GROW(*sought, *nr, *alloc);
19 (*sought)[*nr - 1] = ref;
20}
21
22static void add_sought_entry(struct ref ***sought, int *nr, int *alloc,
23 const char *string)
24{
25 add_sought_entry_mem(sought, nr, alloc, string, strlen(string));
26}
27
50ab5fd3
SP
28int cmd_fetch_pack(int argc, const char **argv, const char *prefix)
29{
57e6fc69 30 int i, ret;
ba227857 31 struct ref *ref = NULL;
9d19c6ea 32 const char *dest = NULL;
f2db854d
JH
33 struct ref **sought = NULL;
34 int nr_sought = 0, alloc_sought = 0;
ba227857 35 int fd[2];
249b2004
SP
36 char *pack_lockfile = NULL;
37 char **pack_lockfile_ptr = NULL;
ba227857 38 struct child_process *conn;
f8eb3036 39 struct fetch_pack_args args;
e28714c5 40
bbc30f99
JK
41 packet_trace_identity("fetch-pack");
42
f8eb3036
NTND
43 memset(&args, 0, sizeof(args));
44 args.uploadpack = "git-upload-pack";
45
ff22ff99 46 for (i = 1; i < argc && *argv[i] == '-'; i++) {
2d4177c0 47 const char *arg = argv[i];
def88e9a 48
ff22ff99
MH
49 if (!prefixcmp(arg, "--upload-pack=")) {
50 args.uploadpack = arg + 14;
51 continue;
52 }
53 if (!prefixcmp(arg, "--exec=")) {
54 args.uploadpack = arg + 7;
55 continue;
def88e9a 56 }
ff22ff99
MH
57 if (!strcmp("--quiet", arg) || !strcmp("-q", arg)) {
58 args.quiet = 1;
59 continue;
60 }
61 if (!strcmp("--keep", arg) || !strcmp("-k", arg)) {
62 args.lock_pack = args.keep_pack;
63 args.keep_pack = 1;
64 continue;
65 }
66 if (!strcmp("--thin", arg)) {
67 args.use_thin_pack = 1;
68 continue;
69 }
70 if (!strcmp("--include-tag", arg)) {
71 args.include_tag = 1;
72 continue;
73 }
74 if (!strcmp("--all", arg)) {
75 args.fetch_all = 1;
76 continue;
def88e9a 77 }
ff22ff99
MH
78 if (!strcmp("--stdin", arg)) {
79 args.stdin_refs = 1;
80 continue;
81 }
82 if (!strcmp("-v", arg)) {
83 args.verbose = 1;
84 continue;
85 }
86 if (!prefixcmp(arg, "--depth=")) {
87 args.depth = strtol(arg + 8, NULL, 0);
88 continue;
89 }
90 if (!strcmp("--no-progress", arg)) {
91 args.no_progress = 1;
92 continue;
93 }
94 if (!strcmp("--stateless-rpc", arg)) {
95 args.stateless_rpc = 1;
96 continue;
97 }
98 if (!strcmp("--lock-pack", arg)) {
99 args.lock_pack = 1;
100 pack_lockfile_ptr = &pack_lockfile;
101 continue;
102 }
103 usage(fetch_pack_usage);
def88e9a 104 }
4cc00fcf
MH
105
106 if (i < argc)
107 dest = argv[i++];
108 else
def88e9a 109 usage(fetch_pack_usage);
2d4177c0 110
57e6fc69
MH
111 /*
112 * Copy refs from cmdline to growable list, then append any
113 * refs from the standard input:
114 */
57e6fc69 115 for (; i < argc; i++)
f2db854d 116 add_sought_entry(&sought, &nr_sought, &alloc_sought, argv[i]);
078b895f 117 if (args.stdin_refs) {
078b895f
IT
118 if (args.stateless_rpc) {
119 /* in stateless RPC mode we use pkt-line to read
120 * from stdin, until we get a flush packet
121 */
078b895f 122 for (;;) {
74543a04
JK
123 char *line = packet_read_line(0, NULL);
124 if (!line)
078b895f 125 break;
e013bdab 126 add_sought_entry(&sought, &nr_sought, &alloc_sought, line);
078b895f
IT
127 }
128 }
129 else {
130 /* read from stdin one ref per line, until EOF */
131 struct strbuf line = STRBUF_INIT;
8bee93dd 132 while (strbuf_getline(&line, stdin, '\n') != EOF)
f2db854d 133 add_sought_entry(&sought, &nr_sought, &alloc_sought, line.buf);
078b895f
IT
134 strbuf_release(&line);
135 }
136 }
137
249b2004
SP
138 if (args.stateless_rpc) {
139 conn = NULL;
140 fd[0] = 0;
141 fd[1] = 1;
ba227857 142 } else {
9d19c6ea 143 conn = git_connect(fd, dest, args.uploadpack,
249b2004
SP
144 args.verbose ? CONNECT_VERBOSE : 0);
145 }
146
85edf4f5 147 get_remote_heads(fd[0], NULL, 0, &ref, 0, NULL);
249b2004
SP
148
149 ref = fetch_pack(&args, fd, conn, ref, dest,
f2db854d 150 sought, nr_sought, pack_lockfile_ptr);
249b2004
SP
151 if (pack_lockfile) {
152 printf("lock %s\n", pack_lockfile);
153 fflush(stdout);
ba227857 154 }
249b2004
SP
155 close(fd[0]);
156 close(fd[1]);
157 if (finish_connect(conn))
7418f1a0 158 return 1;
2d4177c0 159
f2db854d 160 ret = !ref;
b285668d
MH
161
162 /*
163 * If the heads to pull were given, we should have consumed
164 * all of them by matching the remote. Otherwise, 'git fetch
165 * remote no-such-ref' would silently succeed without issuing
166 * an error.
167 */
f2db854d
JH
168 for (i = 0; i < nr_sought; i++) {
169 if (!sought[i] || sought[i]->matched)
170 continue;
171 error("no such remote ref %s", sought[i]->name);
172 ret = 1;
173 }
174
2d4177c0
DB
175 while (ref) {
176 printf("%s %s\n",
177 sha1_to_hex(ref->old_sha1), ref->name);
178 ref = ref->next;
179 }
180
181 return ret;
182}