builtin/send-pack.c

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