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, void *cb)
 135 {
 136         if (!strcmp(k, "push.gpgsign")) {
 137                 const char *value;
 138                 if (!git_config_get_value("push.gpgsign", &value)) {
 139                         switch (git_parse_maybe_bool(value)) {
 140                         case 0:
 141                                 args.push_cert = SEND_PACK_PUSH_CERT_NEVER;
 142                                 break;
 143                         case 1:
 144                                 args.push_cert = SEND_PACK_PUSH_CERT_ALWAYS;
 145                                 break;
 146                         default:
 147                                 if (value && !strcasecmp(value, "if-asked"))
 148                                         args.push_cert = SEND_PACK_PUSH_CERT_IF_ASKED;
 149                                 else
 150                                         return error(_("invalid value for '%s'"), k);
 151                         }
 152                 }
 153         }
 154         return git_default_config(k, v, cb);
 155 }
 156
 157 int cmd_send_pack(int argc, const char **argv, const char *prefix)
 158 {
 159         struct refspec rs = REFSPEC_INIT_PUSH;
 160         const char *remote_name = NULL;
 161         struct remote *remote = NULL;
 162         const char *dest = NULL;
 163         int fd[2];
 164         struct child_process *conn;
 165         struct oid_array extra_have = OID_ARRAY_INIT;
 166         struct oid_array shallow = OID_ARRAY_INIT;
 167         struct ref *remote_refs, *local_refs;
 168         int ret;
 169         int helper_status = 0;
 170         int send_all = 0;
 171         int verbose = 0;
 172         const char *receivepack = "git-receive-pack";
 173         unsigned dry_run = 0;
 174         unsigned send_mirror = 0;
 175         unsigned force_update = 0;
 176         unsigned quiet = 0;
 177         int push_cert = 0;
 178         struct string_list push_options = STRING_LIST_INIT_NODUP;
 179         unsigned use_thin_pack = 0;
 180         unsigned atomic = 0;
 181         unsigned stateless_rpc = 0;
 182         int flags;
 183         unsigned int reject_reasons;
 184         int progress = -1;
 185         int from_stdin = 0;
 186         struct push_cas_option cas = {0};
 187         int force_if_includes = 0;
 188         struct packet_reader reader;
 189
 190         struct option options[] = {
 191                 OPT__VERBOSITY(&verbose),
 192                 OPT_STRING(0, "receive-pack", &receivepack, "receive-pack", N_("receive pack program")),
 193                 OPT_STRING(0, "exec", &receivepack, "receive-pack", N_("receive pack program")),
 194                 OPT_STRING(0, "remote", &remote_name, "remote", N_("remote name")),
 195                 OPT_BOOL(0, "all", &send_all, N_("push all refs")),
 196                 OPT_BOOL('n' , "dry-run", &dry_run, N_("dry run")),
 197                 OPT_BOOL(0, "mirror", &send_mirror, N_("mirror all refs")),
 198                 OPT_BOOL('f', "force", &force_update, N_("force updates")),
 199                 OPT_CALLBACK_F(0, "signed", &push_cert, "(yes|no|if-asked)", N_("GPG sign the push"),
 200                   PARSE_OPT_OPTARG, option_parse_push_signed),
 201                 OPT_STRING_LIST(0, "push-option", &push_options,
 202                                 N_("server-specific"),
 203                                 N_("option to transmit")),
 204                 OPT_BOOL(0, "progress", &progress, N_("force progress reporting")),
 205                 OPT_BOOL(0, "thin", &use_thin_pack, N_("use thin pack")),
 206                 OPT_BOOL(0, "atomic", &atomic, N_("request atomic transaction on remote side")),
 207                 OPT_BOOL(0, "stateless-rpc", &stateless_rpc, N_("use stateless RPC protocol")),
 208                 OPT_BOOL(0, "stdin", &from_stdin, N_("read refs from stdin")),
 209                 OPT_BOOL(0, "helper-status", &helper_status, N_("print status from remote helper")),
 210                 OPT_CALLBACK_F(0, CAS_OPT_NAME, &cas, N_("<refname>:<expect>"),
 211                   N_("require old value of ref to be at this value"),
 212                   PARSE_OPT_OPTARG, parseopt_push_cas_option),
 213                 OPT_BOOL(0, TRANS_OPT_FORCE_IF_INCLUDES, &force_if_includes,
 214                          N_("require remote updates to be integrated locally")),
 215                 OPT_END()
 216         };
 217
 218         git_config(send_pack_config, NULL);
 219         argc = parse_options(argc, argv, prefix, options, send_pack_usage, 0);
 220         if (argc > 0) {
 221                 dest = argv[0];
 222                 refspec_appendn(&rs, argv + 1, argc - 1);
 223         }
 224
 225         if (!dest)
 226                 usage_with_options(send_pack_usage, options);
 227
 228         args.verbose = verbose;
 229         args.dry_run = dry_run;
 230         args.send_mirror = send_mirror;
 231         args.force_update = force_update;
 232         args.quiet = quiet;
 233         args.push_cert = push_cert;
 234         args.progress = progress;
 235         args.use_thin_pack = use_thin_pack;
 236         args.atomic = atomic;
 237         args.stateless_rpc = stateless_rpc;
 238         args.push_options = push_options.nr ? &push_options : NULL;
 239         args.url = dest;
 240
 241         if (from_stdin) {
 242                 if (args.stateless_rpc) {
 243                         const char *buf;
 244                         while ((buf = packet_read_line(0, NULL)))
 245                                 refspec_append(&rs, buf);
 246                 } else {
 247                         struct strbuf line = STRBUF_INIT;
 248                         while (strbuf_getline(&line, stdin) != EOF)
 249                                 refspec_append(&rs, line.buf);
 250                         strbuf_release(&line);
 251                 }
 252         }
 253
 254         /*
 255          * --all and --mirror are incompatible; neither makes sense
 256          * with any refspecs.
 257          */
 258         if ((rs.nr > 0 && (send_all || args.send_mirror)) ||
 259             (send_all && args.send_mirror))
 260                 usage_with_options(send_pack_usage, options);
 261
 262         if (remote_name) {
 263                 remote = remote_get(remote_name);
 264                 if (!remote_has_url(remote, dest)) {
 265                         die("Destination %s is not a uri for %s",
 266                             dest, remote_name);
 267                 }
 268         }
 269
 270         if (progress == -1)
 271                 progress = !args.quiet && isatty(2);
 272         args.progress = progress;
 273
 274         if (args.stateless_rpc) {
 275                 conn = NULL;
 276                 fd[0] = 0;
 277                 fd[1] = 1;
 278         } else {
 279                 conn = git_connect(fd, dest, "git-receive-pack", receivepack,
 280                         args.verbose ? CONNECT_VERBOSE : 0);
 281         }
 282
 283         packet_reader_init(&reader, fd[0], NULL, 0,
 284                            PACKET_READ_CHOMP_NEWLINE |
 285                            PACKET_READ_GENTLE_ON_EOF |
 286                            PACKET_READ_DIE_ON_ERR_PACKET);
 287
 288         switch (discover_version(&reader)) {
 289         case protocol_v2:
 290                 die("support for protocol v2 not implemented yet");
 291                 break;
 292         case protocol_v1:
 293         case protocol_v0:
 294                 get_remote_heads(&reader, &remote_refs, REF_NORMAL,
 295                                  &extra_have, &shallow);
 296                 break;
 297         case protocol_unknown_version:
 298                 BUG("unknown protocol version");
 299         }
 300
 301         local_refs = get_local_heads();
 302
 303         flags = MATCH_REFS_NONE;
 304
 305         if (send_all)
 306                 flags |= MATCH_REFS_ALL;
 307         if (args.send_mirror)
 308                 flags |= MATCH_REFS_MIRROR;
 309
 310         /* match them up */
 311         if (match_push_refs(local_refs, &remote_refs, &rs, flags))
 312                 return -1;
 313
 314         if (!is_empty_cas(&cas))
 315                 apply_push_cas(&cas, remote, remote_refs);
 316
 317         if (!is_empty_cas(&cas) && force_if_includes)
 318                 cas.use_force_if_includes = 1;
 319
 320         set_ref_status_for_push(remote_refs, args.send_mirror,
 321                 args.force_update);
 322
 323         ret = send_pack(&args, fd, conn, remote_refs, &extra_have);
 324
 325         if (helper_status)
 326                 print_helper_status(remote_refs);
 327
 328         close(fd[1]);
 329         close(fd[0]);
 330
 331         ret |= finish_connect(conn);
 332
 333         if (!helper_status)
 334                 transport_print_push_status(dest, remote_refs, args.verbose, 0, &reject_reasons);
 335
 336         if (!args.dry_run && remote) {
 337                 struct ref *ref;
 338                 for (ref = remote_refs; ref; ref = ref->next)
 339                         transport_update_tracking_ref(remote, ref, args.verbose);
 340         }
 341
 342         if (!ret && !transport_refs_pushed(remote_refs))
 343                 fprintf(stderr, "Everything up-to-date\n");
 344
 345         return ret;
 346 }