Merge branch 'mk/reachable-protect-detached-head' into maint
[git] / builtin / send-pack.c
1 #include "builtin.h"
2 #include "commit.h"
3 #include "refs.h"
4 #include "pkt-line.h"
5 #include "sideband.h"
6 #include "run-command.h"
7 #include "remote.h"
8 #include "connect.h"
9 #include "send-pack.h"
10 #include "quote.h"
11 #include "transport.h"
12 #include "version.h"
13 #include "sha1-array.h"
14
15 static const char send_pack_usage[] =
16 "git send-pack [--all | --mirror] [--dry-run] [--force] [--receive-pack=<git-receive-pack>] [--verbose] [--thin] [<host>:]<directory> [<ref>...]\n"
17 "  --all and explicit <ref> specification are mutually exclusive.";
18
19 static struct send_pack_args args;
20
21 static void print_helper_status(struct ref *ref)
22 {
23         struct strbuf buf = STRBUF_INIT;
24
25         for (; ref; ref = ref->next) {
26                 const char *msg = NULL;
27                 const char *res;
28
29                 switch(ref->status) {
30                 case REF_STATUS_NONE:
31                         res = "error";
32                         msg = "no match";
33                         break;
34
35                 case REF_STATUS_OK:
36                         res = "ok";
37                         break;
38
39                 case REF_STATUS_UPTODATE:
40                         res = "ok";
41                         msg = "up to date";
42                         break;
43
44                 case REF_STATUS_REJECT_NONFASTFORWARD:
45                         res = "error";
46                         msg = "non-fast forward";
47                         break;
48
49                 case REF_STATUS_REJECT_FETCH_FIRST:
50                         res = "error";
51                         msg = "fetch first";
52                         break;
53
54                 case REF_STATUS_REJECT_NEEDS_FORCE:
55                         res = "error";
56                         msg = "needs force";
57                         break;
58
59                 case REF_STATUS_REJECT_STALE:
60                         res = "error";
61                         msg = "stale info";
62                         break;
63
64                 case REF_STATUS_REJECT_ALREADY_EXISTS:
65                         res = "error";
66                         msg = "already exists";
67                         break;
68
69                 case REF_STATUS_REJECT_NODELETE:
70                 case REF_STATUS_REMOTE_REJECT:
71                         res = "error";
72                         break;
73
74                 case REF_STATUS_EXPECTING_REPORT:
75                 default:
76                         continue;
77                 }
78
79                 strbuf_reset(&buf);
80                 strbuf_addf(&buf, "%s %s", res, ref->name);
81                 if (ref->remote_status)
82                         msg = ref->remote_status;
83                 if (msg) {
84                         strbuf_addch(&buf, ' ');
85                         quote_two_c_style(&buf, "", msg, 0);
86                 }
87                 strbuf_addch(&buf, '\n');
88
89                 write_or_die(1, buf.buf, buf.len);
90         }
91         strbuf_release(&buf);
92 }
93
94 int cmd_send_pack(int argc, const char **argv, const char *prefix)
95 {
96         int i, nr_refspecs = 0;
97         const char **refspecs = NULL;
98         const char *remote_name = NULL;
99         struct remote *remote = NULL;
100         const char *dest = NULL;
101         int fd[2];
102         struct child_process *conn;
103         struct sha1_array extra_have = SHA1_ARRAY_INIT;
104         struct sha1_array shallow = SHA1_ARRAY_INIT;
105         struct ref *remote_refs, *local_refs;
106         int ret;
107         int helper_status = 0;
108         int send_all = 0;
109         const char *receivepack = "git-receive-pack";
110         int flags;
111         unsigned int reject_reasons;
112         int progress = -1;
113         int from_stdin = 0;
114         struct push_cas_option cas = {0};
115
116         argv++;
117         for (i = 1; i < argc; i++, argv++) {
118                 const char *arg = *argv;
119
120                 if (*arg == '-') {
121                         if (starts_with(arg, "--receive-pack=")) {
122                                 receivepack = arg + 15;
123                                 continue;
124                         }
125                         if (starts_with(arg, "--exec=")) {
126                                 receivepack = arg + 7;
127                                 continue;
128                         }
129                         if (starts_with(arg, "--remote=")) {
130                                 remote_name = arg + 9;
131                                 continue;
132                         }
133                         if (!strcmp(arg, "--all")) {
134                                 send_all = 1;
135                                 continue;
136                         }
137                         if (!strcmp(arg, "--dry-run")) {
138                                 args.dry_run = 1;
139                                 continue;
140                         }
141                         if (!strcmp(arg, "--mirror")) {
142                                 args.send_mirror = 1;
143                                 continue;
144                         }
145                         if (!strcmp(arg, "--force")) {
146                                 args.force_update = 1;
147                                 continue;
148                         }
149                         if (!strcmp(arg, "--quiet")) {
150                                 args.quiet = 1;
151                                 continue;
152                         }
153                         if (!strcmp(arg, "--verbose")) {
154                                 args.verbose = 1;
155                                 continue;
156                         }
157                         if (!strcmp(arg, "--progress")) {
158                                 progress = 1;
159                                 continue;
160                         }
161                         if (!strcmp(arg, "--no-progress")) {
162                                 progress = 0;
163                                 continue;
164                         }
165                         if (!strcmp(arg, "--thin")) {
166                                 args.use_thin_pack = 1;
167                                 continue;
168                         }
169                         if (!strcmp(arg, "--stateless-rpc")) {
170                                 args.stateless_rpc = 1;
171                                 continue;
172                         }
173                         if (!strcmp(arg, "--stdin")) {
174                                 from_stdin = 1;
175                                 continue;
176                         }
177                         if (!strcmp(arg, "--helper-status")) {
178                                 helper_status = 1;
179                                 continue;
180                         }
181                         if (!strcmp(arg, "--" CAS_OPT_NAME)) {
182                                 if (parse_push_cas_option(&cas, NULL, 0) < 0)
183                                         exit(1);
184                                 continue;
185                         }
186                         if (!strcmp(arg, "--no-" CAS_OPT_NAME)) {
187                                 if (parse_push_cas_option(&cas, NULL, 1) < 0)
188                                         exit(1);
189                                 continue;
190                         }
191                         if (starts_with(arg, "--" CAS_OPT_NAME "=")) {
192                                 if (parse_push_cas_option(&cas,
193                                                           strchr(arg, '=') + 1, 0) < 0)
194                                         exit(1);
195                                 continue;
196                         }
197                         usage(send_pack_usage);
198                 }
199                 if (!dest) {
200                         dest = arg;
201                         continue;
202                 }
203                 refspecs = (const char **) argv;
204                 nr_refspecs = argc - i;
205                 break;
206         }
207         if (!dest)
208                 usage(send_pack_usage);
209
210         if (from_stdin) {
211                 struct argv_array all_refspecs = ARGV_ARRAY_INIT;
212
213                 for (i = 0; i < nr_refspecs; i++)
214                         argv_array_push(&all_refspecs, refspecs[i]);
215
216                 if (args.stateless_rpc) {
217                         const char *buf;
218                         while ((buf = packet_read_line(0, NULL)))
219                                 argv_array_push(&all_refspecs, buf);
220                 } else {
221                         struct strbuf line = STRBUF_INIT;
222                         while (strbuf_getline(&line, stdin, '\n') != EOF)
223                                 argv_array_push(&all_refspecs, line.buf);
224                         strbuf_release(&line);
225                 }
226
227                 refspecs = all_refspecs.argv;
228                 nr_refspecs = all_refspecs.argc;
229         }
230
231         /*
232          * --all and --mirror are incompatible; neither makes sense
233          * with any refspecs.
234          */
235         if ((refspecs && (send_all || args.send_mirror)) ||
236             (send_all && args.send_mirror))
237                 usage(send_pack_usage);
238
239         if (remote_name) {
240                 remote = remote_get(remote_name);
241                 if (!remote_has_url(remote, dest)) {
242                         die("Destination %s is not a uri for %s",
243                             dest, remote_name);
244                 }
245         }
246
247         if (progress == -1)
248                 progress = !args.quiet && isatty(2);
249         args.progress = progress;
250
251         if (args.stateless_rpc) {
252                 conn = NULL;
253                 fd[0] = 0;
254                 fd[1] = 1;
255         } else {
256                 conn = git_connect(fd, dest, receivepack,
257                         args.verbose ? CONNECT_VERBOSE : 0);
258         }
259
260         get_remote_heads(fd[0], NULL, 0, &remote_refs, REF_NORMAL,
261                          &extra_have, &shallow);
262
263         transport_verify_remote_names(nr_refspecs, refspecs);
264
265         local_refs = get_local_heads();
266
267         flags = MATCH_REFS_NONE;
268
269         if (send_all)
270                 flags |= MATCH_REFS_ALL;
271         if (args.send_mirror)
272                 flags |= MATCH_REFS_MIRROR;
273
274         /* match them up */
275         if (match_push_refs(local_refs, &remote_refs, nr_refspecs, refspecs, flags))
276                 return -1;
277
278         if (!is_empty_cas(&cas))
279                 apply_push_cas(&cas, remote, remote_refs);
280
281         set_ref_status_for_push(remote_refs, args.send_mirror,
282                 args.force_update);
283
284         ret = send_pack(&args, fd, conn, remote_refs, &extra_have);
285
286         if (helper_status)
287                 print_helper_status(remote_refs);
288
289         close(fd[1]);
290         close(fd[0]);
291
292         ret |= finish_connect(conn);
293
294         if (!helper_status)
295                 transport_print_push_status(dest, remote_refs, args.verbose, 0, &reject_reasons);
296
297         if (!args.dry_run && remote) {
298                 struct ref *ref;
299                 for (ref = remote_refs; ref; ref = ref->next)
300                         transport_update_tracking_ref(remote, ref, args.verbose);
301         }
302
303         if (!ret && !transport_refs_pushed(remote_refs))
304                 fprintf(stderr, "Everything up-to-date\n");
305
306         return ret;
307 }