builtin/send-pack.c

   1 #include "builtin.h"
   2 #include "config.h"
   3 #include "commit.h"
   4 #include "hex.h"
   5 #include "refs.h"
   6 #include "pkt-line.h"
   7 #include "sideband.h"
   8 #include "run-command.h"
   9 #include "remote.h"
  10 #include "connect.h"
  11 #include "send-pack.h"
  12 #include "quote.h"
  13 #include "transport.h"
  14 #include "version.h"
  15 #include "oid-array.h"
  16 #include "gpg-interface.h"
  17 #include "gettext.h"
  18 #include "protocol.h"
  19 #include "parse-options.h"
  20 #include "write-or-die.h"
  21
  22 static const char * const send_pack_usage[] = {
  23         N_("git send-pack [--mirror] [--dry-run] [--force]\n"
  24            "              [--receive-pack=<git-receive-pack>]\n"
  25            "              [--verbose] [--thin] [--atomic]\n"
  26            "              [--[no-]signed | --signed=(true|false|if-asked)]\n"
  27            "              [<host>:]<directory> (--all | <ref>...)"),
  28         NULL,
  29 };
  30
  31 static struct send_pack_args args;
  32
  33 static void print_helper_status(struct ref *ref)
  34 {
  35         struct strbuf buf = STRBUF_INIT;
  36         struct ref_push_report *report;
  37
  38         for (; ref; ref = ref->next) {
  39                 const char *msg = NULL;
  40                 const char *res;
  41                 int count = 0;
  42
  43                 switch(ref->status) {
  44                 case REF_STATUS_NONE:
  45                         res = "error";
  46                         msg = "no match";
  47                         break;
  48
  49                 case REF_STATUS_OK:
  50                         res = "ok";
  51                         break;
  52
  53                 case REF_STATUS_UPTODATE:
  54                         res = "ok";
  55                         msg = "up to date";
  56                         break;
  57
  58                 case REF_STATUS_REJECT_NONFASTFORWARD:
  59                         res = "error";
  60                         msg = "non-fast forward";
  61                         break;
  62
  63                 case REF_STATUS_REJECT_FETCH_FIRST:
  64                         res = "error";
  65                         msg = "fetch first";
  66                         break;
  67
  68                 case REF_STATUS_REJECT_NEEDS_FORCE:
  69                         res = "error";
  70                         msg = "needs force";
  71                         break;
  72
  73                 case REF_STATUS_REJECT_STALE:
  74                         res = "error";
  75                         msg = "stale info";
  76                         break;
  77
  78                 case REF_STATUS_REJECT_REMOTE_UPDATED:
  79                         res = "error";
  80                         msg = "remote ref updated since checkout";
  81                         break;
  82
  83                 case REF_STATUS_REJECT_ALREADY_EXISTS:
  84                         res = "error";
  85                         msg = "already exists";
  86                         break;
  87
  88                 case REF_STATUS_REJECT_NODELETE:
  89                 case REF_STATUS_REMOTE_REJECT:
  90                         res = "error";
  91                         break;
  92
  93                 case REF_STATUS_EXPECTING_REPORT:
  94                         res = "error";
  95                         msg = "expecting report";
  96                         break;
  97
  98                 default:
  99                         continue;
 100                 }
 101
 102                 strbuf_reset(&buf);
 103                 strbuf_addf(&buf, "%s %s", res, ref->name);
 104                 if (ref->remote_status)
 105                         msg = ref->remote_status;
 106                 if (msg) {
 107                         strbuf_addch(&buf, ' ');
 108                         quote_two_c_style(&buf, "", msg, 0);
 109                 }
 110                 strbuf_addch(&buf, '\n');
 111
 112                 if (ref->status == REF_STATUS_OK) {
 113                         for (report = ref->report; report; report = report->next) {
 114                                 if (count++ > 0)
 115                                         strbuf_addf(&buf, "ok %s\n", ref->name);
 116                                 if (report->ref_name)
 117                                         strbuf_addf(&buf, "option refname %s\n",
 118                                                 report->ref_name);
 119                                 if (report->old_oid)
 120                                         strbuf_addf(&buf, "option old-oid %s\n",
 121                                                 oid_to_hex(report->old_oid));
 122                                 if (report->new_oid)
 123                                         strbuf_addf(&buf, "option new-oid %s\n",
 124                                                 oid_to_hex(report->new_oid));
 125                                 if (report->forced_update)
 126                                         strbuf_addstr(&buf, "option forced-update\n");
 127                         }
 128                 }
 129                 write_or_die(1, buf.buf, buf.len);
 130         }
 131         strbuf_release(&buf);
 132 }
 133
 134 static int send_pack_config(const char *k, const char *v,
 135                             const struct config_context *ctx, void *cb)
 136 {
 137         if (!strcmp(k, "push.gpgsign")) {
 138                 switch (git_parse_maybe_bool(v)) {
 139                 case 0:
 140                         args.push_cert = SEND_PACK_PUSH_CERT_NEVER;
 141                         break;
 142                 case 1:
 143                         args.push_cert = SEND_PACK_PUSH_CERT_ALWAYS;
 144                         break;
 145                 default:
 146                         if (!strcasecmp(v, "if-asked"))
 147                                 args.push_cert = SEND_PACK_PUSH_CERT_IF_ASKED;
 148                         else
 149                                 return error(_("invalid value for '%s'"), k);
 150                 }
 151         }
 152         return git_default_config(k, v, ctx, cb);
 153 }
 154
 155 int cmd_send_pack(int argc, const char **argv, const char *prefix)
 156 {
 157         struct refspec rs = REFSPEC_INIT_PUSH;
 158         const char *remote_name = NULL;
 159         struct remote *remote = NULL;
 160         const char *dest = NULL;
 161         int fd[2];
 162         struct child_process *conn;
 163         struct oid_array extra_have = OID_ARRAY_INIT;
 164         struct oid_array shallow = OID_ARRAY_INIT;
 165         struct ref *remote_refs, *local_refs;
 166         int ret;
 167         int helper_status = 0;
 168         int send_all = 0;
 169         int verbose = 0;
 170         const char *receivepack = "git-receive-pack";
 171         unsigned dry_run = 0;
 172         unsigned send_mirror = 0;
 173         unsigned force_update = 0;
 174         unsigned quiet = 0;
 175         int push_cert = 0;
 176         struct string_list push_options = STRING_LIST_INIT_NODUP;
 177         unsigned use_thin_pack = 0;
 178         unsigned atomic = 0;
 179         unsigned stateless_rpc = 0;
 180         int flags;
 181         unsigned int reject_reasons;
 182         int progress = -1;
 183         int from_stdin = 0;
 184         struct push_cas_option cas = {0};
 185         int force_if_includes = 0;
 186         struct packet_reader reader;
 187
 188         struct option options[] = {
 189                 OPT__VERBOSITY(&verbose),
 190                 OPT_STRING(0, "receive-pack", &receivepack, "receive-pack", N_("receive pack program")),
 191                 OPT_STRING(0, "exec", &receivepack, "receive-pack", N_("receive pack program")),
 192                 OPT_STRING(0, "remote", &remote_name, "remote", N_("remote name")),
 193                 OPT_BOOL(0, "all", &send_all, N_("push all refs")),
 194                 OPT_BOOL('n' , "dry-run", &dry_run, N_("dry run")),
 195                 OPT_BOOL(0, "mirror", &send_mirror, N_("mirror all refs")),
 196                 OPT_BOOL('f', "force", &force_update, N_("force updates")),
 197                 OPT_CALLBACK_F(0, "signed", &push_cert, "(yes|no|if-asked)", N_("GPG sign the push"),
 198                   PARSE_OPT_OPTARG, option_parse_push_signed),
 199                 OPT_STRING_LIST(0, "push-option", &push_options,
 200                                 N_("server-specific"),
 201                                 N_("option to transmit")),
 202                 OPT_BOOL(0, "progress", &progress, N_("force progress reporting")),
 203                 OPT_BOOL(0, "thin", &use_thin_pack, N_("use thin pack")),
 204                 OPT_BOOL(0, "atomic", &atomic, N_("request atomic transaction on remote side")),
 205                 OPT_BOOL(0, "stateless-rpc", &stateless_rpc, N_("use stateless RPC protocol")),
 206                 OPT_BOOL(0, "stdin", &from_stdin, N_("read refs from stdin")),
 207                 OPT_BOOL(0, "helper-status", &helper_status, N_("print status from remote helper")),
 208                 OPT_CALLBACK_F(0, "force-with-lease", &cas, N_("<refname>:<expect>"),
 209                   N_("require old value of ref to be at this value"),
 210                   PARSE_OPT_OPTARG, parseopt_push_cas_option),
 211                 OPT_BOOL(0, TRANS_OPT_FORCE_IF_INCLUDES, &force_if_includes,
 212                          N_("require remote updates to be integrated locally")),
 213                 OPT_END()
 214         };
 215
 216         git_config(send_pack_config, NULL);
 217         argc = parse_options(argc, argv, prefix, options, send_pack_usage, 0);
 218         if (argc > 0) {
 219                 dest = argv[0];
 220                 refspec_appendn(&rs, argv + 1, argc - 1);
 221         }
 222
 223         if (!dest)
 224                 usage_with_options(send_pack_usage, options);
 225
 226         args.verbose = verbose;
 227         args.dry_run = dry_run;
 228         args.send_mirror = send_mirror;
 229         args.force_update = force_update;
 230         args.quiet = quiet;
 231         args.push_cert = push_cert;
 232         args.progress = progress;
 233         args.use_thin_pack = use_thin_pack;
 234         args.atomic = atomic;
 235         args.stateless_rpc = stateless_rpc;
 236         args.push_options = push_options.nr ? &push_options : NULL;
 237         args.url = dest;
 238
 239         if (from_stdin) {
 240                 if (args.stateless_rpc) {
 241                         const char *buf;
 242                         while ((buf = packet_read_line(0, NULL)))
 243                                 refspec_append(&rs, buf);
 244                 } else {
 245                         struct strbuf line = STRBUF_INIT;
 246                         while (strbuf_getline(&line, stdin) != EOF)
 247                                 refspec_append(&rs, line.buf);
 248                         strbuf_release(&line);
 249                 }
 250         }
 251
 252         /*
 253          * --all and --mirror are incompatible; neither makes sense
 254          * with any refspecs.
 255          */
 256         if ((rs.nr > 0 && (send_all || args.send_mirror)) ||
 257             (send_all && args.send_mirror))
 258                 usage_with_options(send_pack_usage, options);
 259
 260         if (remote_name) {
 261                 remote = remote_get(remote_name);
 262                 if (!remote_has_url(remote, dest)) {
 263                         die("Destination %s is not a uri for %s",
 264                             dest, remote_name);
 265                 }
 266         }
 267
 268         if (progress == -1)
 269                 progress = !args.quiet && isatty(2);
 270         args.progress = progress;
 271
 272         if (args.stateless_rpc) {
 273                 conn = NULL;
 274                 fd[0] = 0;
 275                 fd[1] = 1;
 276         } else {
 277                 conn = git_connect(fd, dest, "git-receive-pack", receivepack,
 278                         args.verbose ? CONNECT_VERBOSE : 0);
 279         }
 280
 281         packet_reader_init(&reader, fd[0], NULL, 0,
 282                            PACKET_READ_CHOMP_NEWLINE |
 283                            PACKET_READ_GENTLE_ON_EOF |
 284                            PACKET_READ_DIE_ON_ERR_PACKET);
 285
 286         switch (discover_version(&reader)) {
 287         case protocol_v2:
 288                 die("support for protocol v2 not implemented yet");
 289                 break;
 290         case protocol_v1:
 291         case protocol_v0:
 292                 get_remote_heads(&reader, &remote_refs, REF_NORMAL,
 293                                  &extra_have, &shallow);
 294                 break;
 295         case protocol_unknown_version:
 296                 BUG("unknown protocol version");
 297         }
 298
 299         local_refs = get_local_heads();
 300
 301         flags = MATCH_REFS_NONE;
 302
 303         if (send_all)
 304                 flags |= MATCH_REFS_ALL;
 305         if (args.send_mirror)
 306                 flags |= MATCH_REFS_MIRROR;
 307
 308         /* match them up */
 309         if (match_push_refs(local_refs, &remote_refs, &rs, flags))
 310                 return -1;
 311
 312         if (!is_empty_cas(&cas))
 313                 apply_push_cas(&cas, remote, remote_refs);
 314
 315         if (!is_empty_cas(&cas) && force_if_includes)
 316                 cas.use_force_if_includes = 1;
 317
 318         set_ref_status_for_push(remote_refs, args.send_mirror,
 319                 args.force_update);
 320
 321         ret = send_pack(&args, fd, conn, remote_refs, &extra_have);
 322
 323         if (helper_status)
 324                 print_helper_status(remote_refs);
 325
 326         close(fd[1]);
 327         close(fd[0]);
 328
 329         ret |= finish_connect(conn);
 330
 331         if (!helper_status)
 332                 transport_print_push_status(dest, remote_refs, args.verbose, 0, &reject_reasons);
 333
 334         if (!args.dry_run && remote) {
 335                 struct ref *ref;
 336                 for (ref = remote_refs; ref; ref = ref->next)
 337                         transport_update_tracking_ref(remote, ref, args.verbose);
 338         }
 339
 340         if (!ret && !transport_refs_pushed(remote_refs))
 341                 fprintf(stderr, "Everything up-to-date\n");
 342
 343         return ret;
 344 }