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 [--mirror] [--dry-run] [--force]\n"
  21            "              [--receive-pack=<git-receive-pack>]\n"
  22            "              [--verbose] [--thin] [--atomic]\n"
  23            "              [--[no-]signed | --signed=(true|false|if-asked)]\n"
  24            "              [<host>:]<directory> (--all | <ref>...)"),
  25         NULL,
  26 };
  27
  28 static struct send_pack_args args;
  29
  30 static void print_helper_status(struct ref *ref)
  31 {
  32         struct strbuf buf = STRBUF_INIT;
  33         struct ref_push_report *report;
  34
  35         for (; ref; ref = ref->next) {
  36                 const char *msg = NULL;
  37                 const char *res;
  38                 int count = 0;
  39
  40                 switch(ref->status) {
  41                 case REF_STATUS_NONE:
  42                         res = "error";
  43                         msg = "no match";
  44                         break;
  45
  46                 case REF_STATUS_OK:
  47                         res = "ok";
  48                         break;
  49
  50                 case REF_STATUS_UPTODATE:
  51                         res = "ok";
  52                         msg = "up to date";
  53                         break;
  54
  55                 case REF_STATUS_REJECT_NONFASTFORWARD:
  56                         res = "error";
  57                         msg = "non-fast forward";
  58                         break;
  59
  60                 case REF_STATUS_REJECT_FETCH_FIRST:
  61                         res = "error";
  62                         msg = "fetch first";
  63                         break;
  64
  65                 case REF_STATUS_REJECT_NEEDS_FORCE:
  66                         res = "error";
  67                         msg = "needs force";
  68                         break;
  69
  70                 case REF_STATUS_REJECT_STALE:
  71                         res = "error";
  72                         msg = "stale info";
  73                         break;
  74
  75                 case REF_STATUS_REJECT_REMOTE_UPDATED:
  76                         res = "error";
  77                         msg = "remote ref updated since checkout";
  78                         break;
  79
  80                 case REF_STATUS_REJECT_ALREADY_EXISTS:
  81                         res = "error";
  82                         msg = "already exists";
  83                         break;
  84
  85                 case REF_STATUS_REJECT_NODELETE:
  86                 case REF_STATUS_REMOTE_REJECT:
  87                         res = "error";
  88                         break;
  89
  90                 case REF_STATUS_EXPECTING_REPORT:
  91                         res = "error";
  92                         msg = "expecting report";
  93                         break;
  94
  95                 default:
  96                         continue;
  97                 }
  98
  99                 strbuf_reset(&buf);
 100                 strbuf_addf(&buf, "%s %s", res, ref->name);
 101                 if (ref->remote_status)
 102                         msg = ref->remote_status;
 103                 if (msg) {
 104                         strbuf_addch(&buf, ' ');
 105                         quote_two_c_style(&buf, "", msg, 0);
 106                 }
 107                 strbuf_addch(&buf, '\n');
 108
 109                 if (ref->status == REF_STATUS_OK) {
 110                         for (report = ref->report; report; report = report->next) {
 111                                 if (count++ > 0)
 112                                         strbuf_addf(&buf, "ok %s\n", ref->name);
 113                                 if (report->ref_name)
 114                                         strbuf_addf(&buf, "option refname %s\n",
 115                                                 report->ref_name);
 116                                 if (report->old_oid)
 117                                         strbuf_addf(&buf, "option old-oid %s\n",
 118                                                 oid_to_hex(report->old_oid));
 119                                 if (report->new_oid)
 120                                         strbuf_addf(&buf, "option new-oid %s\n",
 121                                                 oid_to_hex(report->new_oid));
 122                                 if (report->forced_update)
 123                                         strbuf_addstr(&buf, "option forced-update\n");
 124                         }
 125                 }
 126                 write_or_die(1, buf.buf, buf.len);
 127         }
 128         strbuf_release(&buf);
 129 }
 130
 131 static int send_pack_config(const char *k, const char *v, void *cb)
 132 {
 133         git_gpg_config(k, v, NULL);
 134
 135         if (!strcmp(k, "push.gpgsign")) {
 136                 const char *value;
 137                 if (!git_config_get_value("push.gpgsign", &value)) {
 138                         switch (git_parse_maybe_bool(value)) {
 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 (value && !strcasecmp(value, "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         }
 153         return git_default_config(k, v, cb);
 154 }
 155
 156 int cmd_send_pack(int argc, const char **argv, const char *prefix)
 157 {
 158         struct refspec rs = REFSPEC_INIT_PUSH;
 159         const char *remote_name = NULL;
 160         struct remote *remote = NULL;
 161         const char *dest = NULL;
 162         int fd[2];
 163         struct child_process *conn;
 164         struct oid_array extra_have = OID_ARRAY_INIT;
 165         struct oid_array shallow = OID_ARRAY_INIT;
 166         struct ref *remote_refs, *local_refs;
 167         int ret;
 168         int helper_status = 0;
 169         int send_all = 0;
 170         int verbose = 0;
 171         const char *receivepack = "git-receive-pack";
 172         unsigned dry_run = 0;
 173         unsigned send_mirror = 0;
 174         unsigned force_update = 0;
 175         unsigned quiet = 0;
 176         int push_cert = 0;
 177         struct string_list push_options = STRING_LIST_INIT_NODUP;
 178         unsigned use_thin_pack = 0;
 179         unsigned atomic = 0;
 180         unsigned stateless_rpc = 0;
 181         int flags;
 182         unsigned int reject_reasons;
 183         int progress = -1;
 184         int from_stdin = 0;
 185         struct push_cas_option cas = {0};
 186         int force_if_includes = 0;
 187         struct packet_reader reader;
 188
 189         struct option options[] = {
 190                 OPT__VERBOSITY(&verbose),
 191                 OPT_STRING(0, "receive-pack", &receivepack, "receive-pack", N_("receive pack program")),
 192                 OPT_STRING(0, "exec", &receivepack, "receive-pack", N_("receive pack program")),
 193                 OPT_STRING(0, "remote", &remote_name, "remote", N_("remote name")),
 194                 OPT_BOOL(0, "all", &send_all, N_("push all refs")),
 195                 OPT_BOOL('n' , "dry-run", &dry_run, N_("dry run")),
 196                 OPT_BOOL(0, "mirror", &send_mirror, N_("mirror all refs")),
 197                 OPT_BOOL('f', "force", &force_update, N_("force updates")),
 198                 OPT_CALLBACK_F(0, "signed", &push_cert, "(yes|no|if-asked)", N_("GPG sign the push"),
 199                   PARSE_OPT_OPTARG, option_parse_push_signed),
 200                 OPT_STRING_LIST(0, "push-option", &push_options,
 201                                 N_("server-specific"),
 202                                 N_("option to transmit")),
 203                 OPT_BOOL(0, "progress", &progress, N_("force progress reporting")),
 204                 OPT_BOOL(0, "thin", &use_thin_pack, N_("use thin pack")),
 205                 OPT_BOOL(0, "atomic", &atomic, N_("request atomic transaction on remote side")),
 206                 OPT_BOOL(0, "stateless-rpc", &stateless_rpc, N_("use stateless RPC protocol")),
 207                 OPT_BOOL(0, "stdin", &from_stdin, N_("read refs from stdin")),
 208                 OPT_BOOL(0, "helper-status", &helper_status, N_("print status from remote helper")),
 209                 OPT_CALLBACK_F(0, CAS_OPT_NAME, &cas, N_("<refname>:<expect>"),
 210                   N_("require old value of ref to be at this value"),
 211                   PARSE_OPT_OPTARG, parseopt_push_cas_option),
 212                 OPT_BOOL(0, TRANS_OPT_FORCE_IF_INCLUDES, &force_if_includes,
 213                          N_("require remote updates to be integrated locally")),
 214                 OPT_END()
 215         };
 216
 217         git_config(send_pack_config, NULL);
 218         argc = parse_options(argc, argv, prefix, options, send_pack_usage, 0);
 219         if (argc > 0) {
 220                 dest = argv[0];
 221                 refspec_appendn(&rs, argv + 1, argc - 1);
 222         }
 223
 224         if (!dest)
 225                 usage_with_options(send_pack_usage, options);
 226
 227         args.verbose = verbose;
 228         args.dry_run = dry_run;
 229         args.send_mirror = send_mirror;
 230         args.force_update = force_update;
 231         args.quiet = quiet;
 232         args.push_cert = push_cert;
 233         args.progress = progress;
 234         args.use_thin_pack = use_thin_pack;
 235         args.atomic = atomic;
 236         args.stateless_rpc = stateless_rpc;
 237         args.push_options = push_options.nr ? &push_options : NULL;
 238         args.url = dest;
 239
 240         if (from_stdin) {
 241                 if (args.stateless_rpc) {
 242                         const char *buf;
 243                         while ((buf = packet_read_line(0, NULL)))
 244                                 refspec_append(&rs, buf);
 245                 } else {
 246                         struct strbuf line = STRBUF_INIT;
 247                         while (strbuf_getline(&line, stdin) != EOF)
 248                                 refspec_append(&rs, line.buf);
 249                         strbuf_release(&line);
 250                 }
 251         }
 252
 253         /*
 254          * --all and --mirror are incompatible; neither makes sense
 255          * with any refspecs.
 256          */
 257         if ((rs.nr > 0 && (send_all || args.send_mirror)) ||
 258             (send_all && args.send_mirror))
 259                 usage_with_options(send_pack_usage, options);
 260
 261         if (remote_name) {
 262                 remote = remote_get(remote_name);
 263                 if (!remote_has_url(remote, dest)) {
 264                         die("Destination %s is not a uri for %s",
 265                             dest, remote_name);
 266                 }
 267         }
 268
 269         if (progress == -1)
 270                 progress = !args.quiet && isatty(2);
 271         args.progress = progress;
 272
 273         if (args.stateless_rpc) {
 274                 conn = NULL;
 275                 fd[0] = 0;
 276                 fd[1] = 1;
 277         } else {
 278                 conn = git_connect(fd, dest, receivepack,
 279                         args.verbose ? CONNECT_VERBOSE : 0);
 280         }
 281
 282         packet_reader_init(&reader, fd[0], NULL, 0,
 283                            PACKET_READ_CHOMP_NEWLINE |
 284                            PACKET_READ_GENTLE_ON_EOF |
 285                            PACKET_READ_DIE_ON_ERR_PACKET);
 286
 287         switch (discover_version(&reader)) {
 288         case protocol_v2:
 289                 die("support for protocol v2 not implemented yet");
 290                 break;
 291         case protocol_v1:
 292         case protocol_v0:
 293                 get_remote_heads(&reader, &remote_refs, REF_NORMAL,
 294                                  &extra_have, &shallow);
 295                 break;
 296         case protocol_unknown_version:
 297                 BUG("unknown protocol version");
 298         }
 299
 300         local_refs = get_local_heads();
 301
 302         flags = MATCH_REFS_NONE;
 303
 304         if (send_all)
 305                 flags |= MATCH_REFS_ALL;
 306         if (args.send_mirror)
 307                 flags |= MATCH_REFS_MIRROR;
 308
 309         /* match them up */
 310         if (match_push_refs(local_refs, &remote_refs, &rs, flags))
 311                 return -1;
 312
 313         if (!is_empty_cas(&cas))
 314                 apply_push_cas(&cas, remote, remote_refs);
 315
 316         if (!is_empty_cas(&cas) && force_if_includes)
 317                 cas.use_force_if_includes = 1;
 318
 319         set_ref_status_for_push(remote_refs, args.send_mirror,
 320                 args.force_update);
 321
 322         ret = send_pack(&args, fd, conn, remote_refs, &extra_have);
 323
 324         if (helper_status)
 325                 print_helper_status(remote_refs);
 326
 327         close(fd[1]);
 328         close(fd[0]);
 329
 330         ret |= finish_connect(conn);
 331
 332         if (!helper_status)
 333                 transport_print_push_status(dest, remote_refs, args.verbose, 0, &reject_reasons);
 334
 335         if (!args.dry_run && remote) {
 336                 struct ref *ref;
 337                 for (ref = remote_refs; ref; ref = ref->next)
 338                         transport_update_tracking_ref(remote, ref, args.verbose);
 339         }
 340
 341         if (!ret && !transport_refs_pushed(remote_refs))
 342                 fprintf(stderr, "Everything up-to-date\n");
 343
 344         return ret;
 345 }