Merge branch 'jt/lazy-fetch'
[git] / builtin / send-pack.c
1 #include "builtin.h"
2 #include "config.h"
3 #include "commit.h"
4 #include "refs.h"
5 #include "pkt-line.h"
6 #include "sideband.h"
7 #include "run-command.h"
8 #include "remote.h"
9 #include "connect.h"
10 #include "send-pack.h"
11 #include "quote.h"
12 #include "transport.h"
13 #include "version.h"
14 #include "oid-array.h"
15 #include "gpg-interface.h"
16 #include "gettext.h"
17 #include "protocol.h"
18
19 static const char * const send_pack_usage[] = {
20         N_("git send-pack [--all | --mirror] [--dry-run] [--force] "
21           "[--receive-pack=<git-receive-pack>] [--verbose] [--thin] [--atomic] "
22           "[<host>:]<directory> [<ref>...]\n"
23           "  --all and explicit <ref> specification are mutually exclusive."),
24         NULL,
25 };
26
27 static struct send_pack_args args;
28
29 static void print_helper_status(struct ref *ref)
30 {
31         struct strbuf buf = STRBUF_INIT;
32
33         for (; ref; ref = ref->next) {
34                 const char *msg = NULL;
35                 const char *res;
36
37                 switch(ref->status) {
38                 case REF_STATUS_NONE:
39                         res = "error";
40                         msg = "no match";
41                         break;
42
43                 case REF_STATUS_OK:
44                         res = "ok";
45                         break;
46
47                 case REF_STATUS_UPTODATE:
48                         res = "ok";
49                         msg = "up to date";
50                         break;
51
52                 case REF_STATUS_REJECT_NONFASTFORWARD:
53                         res = "error";
54                         msg = "non-fast forward";
55                         break;
56
57                 case REF_STATUS_REJECT_FETCH_FIRST:
58                         res = "error";
59                         msg = "fetch first";
60                         break;
61
62                 case REF_STATUS_REJECT_NEEDS_FORCE:
63                         res = "error";
64                         msg = "needs force";
65                         break;
66
67                 case REF_STATUS_REJECT_STALE:
68                         res = "error";
69                         msg = "stale info";
70                         break;
71
72                 case REF_STATUS_REJECT_ALREADY_EXISTS:
73                         res = "error";
74                         msg = "already exists";
75                         break;
76
77                 case REF_STATUS_REJECT_NODELETE:
78                 case REF_STATUS_REMOTE_REJECT:
79                         res = "error";
80                         break;
81
82                 case REF_STATUS_EXPECTING_REPORT:
83                 default:
84                         continue;
85                 }
86
87                 strbuf_reset(&buf);
88                 strbuf_addf(&buf, "%s %s", res, ref->name);
89                 if (ref->remote_status)
90                         msg = ref->remote_status;
91                 if (msg) {
92                         strbuf_addch(&buf, ' ');
93                         quote_two_c_style(&buf, "", msg, 0);
94                 }
95                 strbuf_addch(&buf, '\n');
96
97                 write_or_die(1, buf.buf, buf.len);
98         }
99         strbuf_release(&buf);
100 }
101
102 static int send_pack_config(const char *k, const char *v, void *cb)
103 {
104         git_gpg_config(k, v, NULL);
105
106         if (!strcmp(k, "push.gpgsign")) {
107                 const char *value;
108                 if (!git_config_get_value("push.gpgsign", &value)) {
109                         switch (git_parse_maybe_bool(value)) {
110                         case 0:
111                                 args.push_cert = SEND_PACK_PUSH_CERT_NEVER;
112                                 break;
113                         case 1:
114                                 args.push_cert = SEND_PACK_PUSH_CERT_ALWAYS;
115                                 break;
116                         default:
117                                 if (value && !strcasecmp(value, "if-asked"))
118                                         args.push_cert = SEND_PACK_PUSH_CERT_IF_ASKED;
119                                 else
120                                         return error("Invalid value for '%s'", k);
121                         }
122                 }
123         }
124         return git_default_config(k, v, cb);
125 }
126
127 int cmd_send_pack(int argc, const char **argv, const char *prefix)
128 {
129         struct refspec rs = REFSPEC_INIT_PUSH;
130         const char *remote_name = NULL;
131         struct remote *remote = NULL;
132         const char *dest = NULL;
133         int fd[2];
134         struct child_process *conn;
135         struct oid_array extra_have = OID_ARRAY_INIT;
136         struct oid_array shallow = OID_ARRAY_INIT;
137         struct ref *remote_refs, *local_refs;
138         int ret;
139         int helper_status = 0;
140         int send_all = 0;
141         int verbose = 0;
142         const char *receivepack = "git-receive-pack";
143         unsigned dry_run = 0;
144         unsigned send_mirror = 0;
145         unsigned force_update = 0;
146         unsigned quiet = 0;
147         int push_cert = 0;
148         struct string_list push_options = STRING_LIST_INIT_NODUP;
149         unsigned use_thin_pack = 0;
150         unsigned atomic = 0;
151         unsigned stateless_rpc = 0;
152         int flags;
153         unsigned int reject_reasons;
154         int progress = -1;
155         int from_stdin = 0;
156         struct push_cas_option cas = {0};
157         struct packet_reader reader;
158
159         struct option options[] = {
160                 OPT__VERBOSITY(&verbose),
161                 OPT_STRING(0, "receive-pack", &receivepack, "receive-pack", N_("receive pack program")),
162                 OPT_STRING(0, "exec", &receivepack, "receive-pack", N_("receive pack program")),
163                 OPT_STRING(0, "remote", &remote_name, "remote", N_("remote name")),
164                 OPT_BOOL(0, "all", &send_all, N_("push all refs")),
165                 OPT_BOOL('n' , "dry-run", &dry_run, N_("dry run")),
166                 OPT_BOOL(0, "mirror", &send_mirror, N_("mirror all refs")),
167                 OPT_BOOL('f', "force", &force_update, N_("force updates")),
168                 OPT_CALLBACK_F(0, "signed", &push_cert, "(yes|no|if-asked)", N_("GPG sign the push"),
169                   PARSE_OPT_OPTARG, option_parse_push_signed),
170                 OPT_STRING_LIST(0, "push-option", &push_options,
171                                 N_("server-specific"),
172                                 N_("option to transmit")),
173                 OPT_BOOL(0, "progress", &progress, N_("force progress reporting")),
174                 OPT_BOOL(0, "thin", &use_thin_pack, N_("use thin pack")),
175                 OPT_BOOL(0, "atomic", &atomic, N_("request atomic transaction on remote side")),
176                 OPT_BOOL(0, "stateless-rpc", &stateless_rpc, N_("use stateless RPC protocol")),
177                 OPT_BOOL(0, "stdin", &from_stdin, N_("read refs from stdin")),
178                 OPT_BOOL(0, "helper-status", &helper_status, N_("print status from remote helper")),
179                 OPT_CALLBACK_F(0, CAS_OPT_NAME, &cas, N_("<refname>:<expect>"),
180                   N_("require old value of ref to be at this value"),
181                   PARSE_OPT_OPTARG, parseopt_push_cas_option),
182                 OPT_END()
183         };
184
185         git_config(send_pack_config, NULL);
186         argc = parse_options(argc, argv, prefix, options, send_pack_usage, 0);
187         if (argc > 0) {
188                 dest = argv[0];
189                 refspec_appendn(&rs, argv + 1, argc - 1);
190         }
191
192         if (!dest)
193                 usage_with_options(send_pack_usage, options);
194
195         args.verbose = verbose;
196         args.dry_run = dry_run;
197         args.send_mirror = send_mirror;
198         args.force_update = force_update;
199         args.quiet = quiet;
200         args.push_cert = push_cert;
201         args.progress = progress;
202         args.use_thin_pack = use_thin_pack;
203         args.atomic = atomic;
204         args.stateless_rpc = stateless_rpc;
205         args.push_options = push_options.nr ? &push_options : NULL;
206
207         if (from_stdin) {
208                 if (args.stateless_rpc) {
209                         const char *buf;
210                         while ((buf = packet_read_line(0, NULL)))
211                                 refspec_append(&rs, buf);
212                 } else {
213                         struct strbuf line = STRBUF_INIT;
214                         while (strbuf_getline(&line, stdin) != EOF)
215                                 refspec_append(&rs, line.buf);
216                         strbuf_release(&line);
217                 }
218         }
219
220         /*
221          * --all and --mirror are incompatible; neither makes sense
222          * with any refspecs.
223          */
224         if ((rs.nr > 0 && (send_all || args.send_mirror)) ||
225             (send_all && args.send_mirror))
226                 usage_with_options(send_pack_usage, options);
227
228         if (remote_name) {
229                 remote = remote_get(remote_name);
230                 if (!remote_has_url(remote, dest)) {
231                         die("Destination %s is not a uri for %s",
232                             dest, remote_name);
233                 }
234         }
235
236         if (progress == -1)
237                 progress = !args.quiet && isatty(2);
238         args.progress = progress;
239
240         if (args.stateless_rpc) {
241                 conn = NULL;
242                 fd[0] = 0;
243                 fd[1] = 1;
244         } else {
245                 conn = git_connect(fd, dest, receivepack,
246                         args.verbose ? CONNECT_VERBOSE : 0);
247         }
248
249         packet_reader_init(&reader, fd[0], NULL, 0,
250                            PACKET_READ_CHOMP_NEWLINE |
251                            PACKET_READ_GENTLE_ON_EOF |
252                            PACKET_READ_DIE_ON_ERR_PACKET);
253
254         switch (discover_version(&reader)) {
255         case protocol_v2:
256                 die("support for protocol v2 not implemented yet");
257                 break;
258         case protocol_v1:
259         case protocol_v0:
260                 get_remote_heads(&reader, &remote_refs, REF_NORMAL,
261                                  &extra_have, &shallow);
262                 break;
263         case protocol_unknown_version:
264                 BUG("unknown protocol version");
265         }
266
267         local_refs = get_local_heads();
268
269         flags = MATCH_REFS_NONE;
270
271         if (send_all)
272                 flags |= MATCH_REFS_ALL;
273         if (args.send_mirror)
274                 flags |= MATCH_REFS_MIRROR;
275
276         /* match them up */
277         if (match_push_refs(local_refs, &remote_refs, &rs, flags))
278                 return -1;
279
280         if (!is_empty_cas(&cas))
281                 apply_push_cas(&cas, remote, remote_refs);
282
283         set_ref_status_for_push(remote_refs, args.send_mirror,
284                 args.force_update);
285
286         ret = send_pack(&args, fd, conn, remote_refs, &extra_have);
287
288         if (helper_status)
289                 print_helper_status(remote_refs);
290
291         close(fd[1]);
292         close(fd[0]);
293
294         ret |= finish_connect(conn);
295
296         if (!helper_status)
297                 transport_print_push_status(dest, remote_refs, args.verbose, 0, &reject_reasons);
298
299         if (!args.dry_run && remote) {
300                 struct ref *ref;
301                 for (ref = remote_refs; ref; ref = ref->next)
302                         transport_update_tracking_ref(remote, ref, args.verbose);
303         }
304
305         if (!ret && !transport_refs_pushed(remote_refs))
306                 fprintf(stderr, "Everything up-to-date\n");
307
308         return ret;
309 }