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 }