Merge branch 'so/combine-diff-simplify'
[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         struct ref_push_report *report;
33
34         for (; ref; ref = ref->next) {
35                 const char *msg = NULL;
36                 const char *res;
37                 int count = 0;
38
39                 switch(ref->status) {
40                 case REF_STATUS_NONE:
41                         res = "error";
42                         msg = "no match";
43                         break;
44
45                 case REF_STATUS_OK:
46                         res = "ok";
47                         break;
48
49                 case REF_STATUS_UPTODATE:
50                         res = "ok";
51                         msg = "up to date";
52                         break;
53
54                 case REF_STATUS_REJECT_NONFASTFORWARD:
55                         res = "error";
56                         msg = "non-fast forward";
57                         break;
58
59                 case REF_STATUS_REJECT_FETCH_FIRST:
60                         res = "error";
61                         msg = "fetch first";
62                         break;
63
64                 case REF_STATUS_REJECT_NEEDS_FORCE:
65                         res = "error";
66                         msg = "needs force";
67                         break;
68
69                 case REF_STATUS_REJECT_STALE:
70                         res = "error";
71                         msg = "stale info";
72                         break;
73
74                 case REF_STATUS_REJECT_ALREADY_EXISTS:
75                         res = "error";
76                         msg = "already exists";
77                         break;
78
79                 case REF_STATUS_REJECT_NODELETE:
80                 case REF_STATUS_REMOTE_REJECT:
81                         res = "error";
82                         break;
83
84                 case REF_STATUS_EXPECTING_REPORT:
85                 default:
86                         continue;
87                 }
88
89                 strbuf_reset(&buf);
90                 strbuf_addf(&buf, "%s %s", res, ref->name);
91                 if (ref->remote_status)
92                         msg = ref->remote_status;
93                 if (msg) {
94                         strbuf_addch(&buf, ' ');
95                         quote_two_c_style(&buf, "", msg, 0);
96                 }
97                 strbuf_addch(&buf, '\n');
98
99                 if (ref->status == REF_STATUS_OK) {
100                         for (report = ref->report; report; report = report->next) {
101                                 if (count++ > 0)
102                                         strbuf_addf(&buf, "ok %s\n", ref->name);
103                                 if (report->ref_name)
104                                         strbuf_addf(&buf, "option refname %s\n",
105                                                 report->ref_name);
106                                 if (report->old_oid)
107                                         strbuf_addf(&buf, "option old-oid %s\n",
108                                                 oid_to_hex(report->old_oid));
109                                 if (report->new_oid)
110                                         strbuf_addf(&buf, "option new-oid %s\n",
111                                                 oid_to_hex(report->new_oid));
112                                 if (report->forced_update)
113                                         strbuf_addstr(&buf, "option forced-update\n");
114                         }
115                 }
116                 write_or_die(1, buf.buf, buf.len);
117         }
118         strbuf_release(&buf);
119 }
120
121 static int send_pack_config(const char *k, const char *v, void *cb)
122 {
123         git_gpg_config(k, v, NULL);
124
125         if (!strcmp(k, "push.gpgsign")) {
126                 const char *value;
127                 if (!git_config_get_value("push.gpgsign", &value)) {
128                         switch (git_parse_maybe_bool(value)) {
129                         case 0:
130                                 args.push_cert = SEND_PACK_PUSH_CERT_NEVER;
131                                 break;
132                         case 1:
133                                 args.push_cert = SEND_PACK_PUSH_CERT_ALWAYS;
134                                 break;
135                         default:
136                                 if (value && !strcasecmp(value, "if-asked"))
137                                         args.push_cert = SEND_PACK_PUSH_CERT_IF_ASKED;
138                                 else
139                                         return error("Invalid value for '%s'", k);
140                         }
141                 }
142         }
143         return git_default_config(k, v, cb);
144 }
145
146 int cmd_send_pack(int argc, const char **argv, const char *prefix)
147 {
148         struct refspec rs = REFSPEC_INIT_PUSH;
149         const char *remote_name = NULL;
150         struct remote *remote = NULL;
151         const char *dest = NULL;
152         int fd[2];
153         struct child_process *conn;
154         struct oid_array extra_have = OID_ARRAY_INIT;
155         struct oid_array shallow = OID_ARRAY_INIT;
156         struct ref *remote_refs, *local_refs;
157         int ret;
158         int helper_status = 0;
159         int send_all = 0;
160         int verbose = 0;
161         const char *receivepack = "git-receive-pack";
162         unsigned dry_run = 0;
163         unsigned send_mirror = 0;
164         unsigned force_update = 0;
165         unsigned quiet = 0;
166         int push_cert = 0;
167         struct string_list push_options = STRING_LIST_INIT_NODUP;
168         unsigned use_thin_pack = 0;
169         unsigned atomic = 0;
170         unsigned stateless_rpc = 0;
171         int flags;
172         unsigned int reject_reasons;
173         int progress = -1;
174         int from_stdin = 0;
175         struct push_cas_option cas = {0};
176         struct packet_reader reader;
177
178         struct option options[] = {
179                 OPT__VERBOSITY(&verbose),
180                 OPT_STRING(0, "receive-pack", &receivepack, "receive-pack", N_("receive pack program")),
181                 OPT_STRING(0, "exec", &receivepack, "receive-pack", N_("receive pack program")),
182                 OPT_STRING(0, "remote", &remote_name, "remote", N_("remote name")),
183                 OPT_BOOL(0, "all", &send_all, N_("push all refs")),
184                 OPT_BOOL('n' , "dry-run", &dry_run, N_("dry run")),
185                 OPT_BOOL(0, "mirror", &send_mirror, N_("mirror all refs")),
186                 OPT_BOOL('f', "force", &force_update, N_("force updates")),
187                 OPT_CALLBACK_F(0, "signed", &push_cert, "(yes|no|if-asked)", N_("GPG sign the push"),
188                   PARSE_OPT_OPTARG, option_parse_push_signed),
189                 OPT_STRING_LIST(0, "push-option", &push_options,
190                                 N_("server-specific"),
191                                 N_("option to transmit")),
192                 OPT_BOOL(0, "progress", &progress, N_("force progress reporting")),
193                 OPT_BOOL(0, "thin", &use_thin_pack, N_("use thin pack")),
194                 OPT_BOOL(0, "atomic", &atomic, N_("request atomic transaction on remote side")),
195                 OPT_BOOL(0, "stateless-rpc", &stateless_rpc, N_("use stateless RPC protocol")),
196                 OPT_BOOL(0, "stdin", &from_stdin, N_("read refs from stdin")),
197                 OPT_BOOL(0, "helper-status", &helper_status, N_("print status from remote helper")),
198                 OPT_CALLBACK_F(0, CAS_OPT_NAME, &cas, N_("<refname>:<expect>"),
199                   N_("require old value of ref to be at this value"),
200                   PARSE_OPT_OPTARG, parseopt_push_cas_option),
201                 OPT_END()
202         };
203
204         git_config(send_pack_config, NULL);
205         argc = parse_options(argc, argv, prefix, options, send_pack_usage, 0);
206         if (argc > 0) {
207                 dest = argv[0];
208                 refspec_appendn(&rs, argv + 1, argc - 1);
209         }
210
211         if (!dest)
212                 usage_with_options(send_pack_usage, options);
213
214         args.verbose = verbose;
215         args.dry_run = dry_run;
216         args.send_mirror = send_mirror;
217         args.force_update = force_update;
218         args.quiet = quiet;
219         args.push_cert = push_cert;
220         args.progress = progress;
221         args.use_thin_pack = use_thin_pack;
222         args.atomic = atomic;
223         args.stateless_rpc = stateless_rpc;
224         args.push_options = push_options.nr ? &push_options : NULL;
225
226         if (from_stdin) {
227                 if (args.stateless_rpc) {
228                         const char *buf;
229                         while ((buf = packet_read_line(0, NULL)))
230                                 refspec_append(&rs, buf);
231                 } else {
232                         struct strbuf line = STRBUF_INIT;
233                         while (strbuf_getline(&line, stdin) != EOF)
234                                 refspec_append(&rs, line.buf);
235                         strbuf_release(&line);
236                 }
237         }
238
239         /*
240          * --all and --mirror are incompatible; neither makes sense
241          * with any refspecs.
242          */
243         if ((rs.nr > 0 && (send_all || args.send_mirror)) ||
244             (send_all && args.send_mirror))
245                 usage_with_options(send_pack_usage, options);
246
247         if (remote_name) {
248                 remote = remote_get(remote_name);
249                 if (!remote_has_url(remote, dest)) {
250                         die("Destination %s is not a uri for %s",
251                             dest, remote_name);
252                 }
253         }
254
255         if (progress == -1)
256                 progress = !args.quiet && isatty(2);
257         args.progress = progress;
258
259         if (args.stateless_rpc) {
260                 conn = NULL;
261                 fd[0] = 0;
262                 fd[1] = 1;
263         } else {
264                 conn = git_connect(fd, dest, receivepack,
265                         args.verbose ? CONNECT_VERBOSE : 0);
266         }
267
268         packet_reader_init(&reader, fd[0], NULL, 0,
269                            PACKET_READ_CHOMP_NEWLINE |
270                            PACKET_READ_GENTLE_ON_EOF |
271                            PACKET_READ_DIE_ON_ERR_PACKET);
272
273         switch (discover_version(&reader)) {
274         case protocol_v2:
275                 die("support for protocol v2 not implemented yet");
276                 break;
277         case protocol_v1:
278         case protocol_v0:
279                 get_remote_heads(&reader, &remote_refs, REF_NORMAL,
280                                  &extra_have, &shallow);
281                 break;
282         case protocol_unknown_version:
283                 BUG("unknown protocol version");
284         }
285
286         local_refs = get_local_heads();
287
288         flags = MATCH_REFS_NONE;
289
290         if (send_all)
291                 flags |= MATCH_REFS_ALL;
292         if (args.send_mirror)
293                 flags |= MATCH_REFS_MIRROR;
294
295         /* match them up */
296         if (match_push_refs(local_refs, &remote_refs, &rs, flags))
297                 return -1;
298
299         if (!is_empty_cas(&cas))
300                 apply_push_cas(&cas, remote, remote_refs);
301
302         set_ref_status_for_push(remote_refs, args.send_mirror,
303                 args.force_update);
304
305         ret = send_pack(&args, fd, conn, remote_refs, &extra_have);
306
307         if (helper_status)
308                 print_helper_status(remote_refs);
309
310         close(fd[1]);
311         close(fd[0]);
312
313         ret |= finish_connect(conn);
314
315         if (!helper_status)
316                 transport_print_push_status(dest, remote_refs, args.verbose, 0, &reject_reasons);
317
318         if (!args.dry_run && remote) {
319                 struct ref *ref;
320                 for (ref = remote_refs; ref; ref = ref->next)
321                         transport_update_tracking_ref(remote, ref, args.verbose);
322         }
323
324         if (!ret && !transport_refs_pushed(remote_refs))
325                 fprintf(stderr, "Everything up-to-date\n");
326
327         return ret;
328 }