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 "sha1-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
  33         for (; ref; ref = ref->next) {
  34                 const char *msg = NULL;
  35                 const char *res;
  36
  37                 switch(ref->status) {
  38                 case REF_STATUS_NONE:
  39                         res = "error";
  40                         msg = "no match";
  41                         break;
  42
  43                 case REF_STATUS_OK:
  44                         res = "ok";
  45                         break;
  46
  47                 case REF_STATUS_UPTODATE:
  48                         res = "ok";
  49                         msg = "up to date";
  50                         break;
  51
  52                 case REF_STATUS_REJECT_NONFASTFORWARD:
  53                         res = "error";
  54                         msg = "non-fast forward";
  55                         break;
  56
  57                 case REF_STATUS_REJECT_FETCH_FIRST:
  58                         res = "error";
  59                         msg = "fetch first";
  60                         break;
  61
  62                 case REF_STATUS_REJECT_NEEDS_FORCE:
  63                         res = "error";
  64                         msg = "needs force";
  65                         break;
  66
  67                 case REF_STATUS_REJECT_STALE:
  68                         res = "error";
  69                         msg = "stale info";
  70                         break;
  71
  72                 case REF_STATUS_REJECT_ALREADY_EXISTS:
  73                         res = "error";
  74                         msg = "already exists";
  75                         break;
  76
  77                 case REF_STATUS_REJECT_NODELETE:
  78                 case REF_STATUS_REMOTE_REJECT:
  79                         res = "error";
  80                         break;
  81
  82                 case REF_STATUS_EXPECTING_REPORT:
  83                 default:
  84                         continue;
  85                 }
  86
  87                 strbuf_reset(&buf);
  88                 strbuf_addf(&buf, "%s %s", res, ref->name);
  89                 if (ref->remote_status)
  90                         msg = ref->remote_status;
  91                 if (msg) {
  92                         strbuf_addch(&buf, ' ');
  93                         quote_two_c_style(&buf, "", msg, 0);
  94                 }
  95                 strbuf_addch(&buf, '\n');
  96
  97                 write_or_die(1, buf.buf, buf.len);
  98         }
  99         strbuf_release(&buf);
 100 }
 101
 102 static int send_pack_config(const char *k, const char *v, void *cb)
 103 {
 104         git_gpg_config(k, v, NULL);
 105
 106         if (!strcmp(k, "push.gpgsign")) {
 107                 const char *value;
 108                 if (!git_config_get_value("push.gpgsign", &value)) {
 109                         switch (git_parse_maybe_bool(value)) {
 110                         case 0:
 111                                 args.push_cert = SEND_PACK_PUSH_CERT_NEVER;
 112                                 break;
 113                         case 1:
 114                                 args.push_cert = SEND_PACK_PUSH_CERT_ALWAYS;
 115                                 break;
 116                         default:
 117                                 if (value && !strcasecmp(value, "if-asked"))
 118                                         args.push_cert = SEND_PACK_PUSH_CERT_IF_ASKED;
 119                                 else
 120                                         return error("Invalid value for '%s'", k);
 121                         }
 122                 }
 123         }
 124         return git_default_config(k, v, cb);
 125 }
 126
 127 int cmd_send_pack(int argc, const char **argv, const char *prefix)
 128 {
 129         struct refspec rs = REFSPEC_INIT_PUSH;
 130         const char *remote_name = NULL;
 131         struct remote *remote = NULL;
 132         const char *dest = NULL;
 133         int fd[2];
 134         struct child_process *conn;
 135         struct oid_array extra_have = OID_ARRAY_INIT;
 136         struct oid_array shallow = OID_ARRAY_INIT;
 137         struct ref *remote_refs, *local_refs;
 138         int ret;
 139         int helper_status = 0;
 140         int send_all = 0;
 141         int verbose = 0;
 142         const char *receivepack = "git-receive-pack";
 143         unsigned dry_run = 0;
 144         unsigned send_mirror = 0;
 145         unsigned force_update = 0;
 146         unsigned quiet = 0;
 147         int push_cert = 0;
 148         struct string_list push_options = STRING_LIST_INIT_NODUP;
 149         unsigned use_thin_pack = 0;
 150         unsigned atomic = 0;
 151         unsigned stateless_rpc = 0;
 152         int flags;
 153         unsigned int reject_reasons;
 154         int progress = -1;
 155         int from_stdin = 0;
 156         struct push_cas_option cas = {0};
 157         struct packet_reader reader;
 158
 159         struct option options[] = {
 160                 OPT__VERBOSITY(&verbose),
 161                 OPT_STRING(0, "receive-pack", &receivepack, "receive-pack", N_("receive pack program")),
 162                 OPT_STRING(0, "exec", &receivepack, "receive-pack", N_("receive pack program")),
 163                 OPT_STRING(0, "remote", &remote_name, "remote", N_("remote name")),
 164                 OPT_BOOL(0, "all", &send_all, N_("push all refs")),
 165                 OPT_BOOL('n' , "dry-run", &dry_run, N_("dry run")),
 166                 OPT_BOOL(0, "mirror", &send_mirror, N_("mirror all refs")),
 167                 OPT_BOOL('f', "force", &force_update, N_("force updates")),
 168                 { OPTION_CALLBACK,
 169                   0, "signed", &push_cert, "(yes|no|if-asked)", N_("GPG sign the push"),
 170                   PARSE_OPT_OPTARG, option_parse_push_signed },
 171                 OPT_STRING_LIST(0, "push-option", &push_options,
 172                                 N_("server-specific"),
 173                                 N_("option to transmit")),
 174                 OPT_BOOL(0, "progress", &progress, N_("force progress reporting")),
 175                 OPT_BOOL(0, "thin", &use_thin_pack, N_("use thin pack")),
 176                 OPT_BOOL(0, "atomic", &atomic, N_("request atomic transaction on remote side")),
 177                 OPT_BOOL(0, "stateless-rpc", &stateless_rpc, N_("use stateless RPC protocol")),
 178                 OPT_BOOL(0, "stdin", &from_stdin, N_("read refs from stdin")),
 179                 OPT_BOOL(0, "helper-status", &helper_status, N_("print status from remote helper")),
 180                 { OPTION_CALLBACK,
 181                   0, CAS_OPT_NAME, &cas, N_("<refname>:<expect>"),
 182                   N_("require old value of ref to be at this value"),
 183                   PARSE_OPT_OPTARG, parseopt_push_cas_option },
 184                 OPT_END()
 185         };
 186
 187         git_config(send_pack_config, NULL);
 188         argc = parse_options(argc, argv, prefix, options, send_pack_usage, 0);
 189         if (argc > 0) {
 190                 dest = argv[0];
 191                 refspec_appendn(&rs, argv + 1, argc - 1);
 192         }
 193
 194         if (!dest)
 195                 usage_with_options(send_pack_usage, options);
 196
 197         args.verbose = verbose;
 198         args.dry_run = dry_run;
 199         args.send_mirror = send_mirror;
 200         args.force_update = force_update;
 201         args.quiet = quiet;
 202         args.push_cert = push_cert;
 203         args.progress = progress;
 204         args.use_thin_pack = use_thin_pack;
 205         args.atomic = atomic;
 206         args.stateless_rpc = stateless_rpc;
 207         args.push_options = push_options.nr ? &push_options : NULL;
 208
 209         if (from_stdin) {
 210                 if (args.stateless_rpc) {
 211                         const char *buf;
 212                         while ((buf = packet_read_line(0, NULL)))
 213                                 refspec_append(&rs, buf);
 214                 } else {
 215                         struct strbuf line = STRBUF_INIT;
 216                         while (strbuf_getline(&line, stdin) != EOF)
 217                                 refspec_append(&rs, line.buf);
 218                         strbuf_release(&line);
 219                 }
 220         }
 221
 222         /*
 223          * --all and --mirror are incompatible; neither makes sense
 224          * with any refspecs.
 225          */
 226         if ((rs.nr > 0 && (send_all || args.send_mirror)) ||
 227             (send_all && args.send_mirror))
 228                 usage_with_options(send_pack_usage, options);
 229
 230         if (remote_name) {
 231                 remote = remote_get(remote_name);
 232                 if (!remote_has_url(remote, dest)) {
 233                         die("Destination %s is not a uri for %s",
 234                             dest, remote_name);
 235                 }
 236         }
 237
 238         if (progress == -1)
 239                 progress = !args.quiet && isatty(2);
 240         args.progress = progress;
 241
 242         if (args.stateless_rpc) {
 243                 conn = NULL;
 244                 fd[0] = 0;
 245                 fd[1] = 1;
 246         } else {
 247                 conn = git_connect(fd, dest, receivepack,
 248                         args.verbose ? CONNECT_VERBOSE : 0);
 249         }
 250
 251         packet_reader_init(&reader, fd[0], NULL, 0,
 252                            PACKET_READ_CHOMP_NEWLINE |
 253                            PACKET_READ_GENTLE_ON_EOF);
 254
 255         switch (discover_version(&reader)) {
 256         case protocol_v2:
 257                 die("support for protocol v2 not implemented yet");
 258                 break;
 259         case protocol_v1:
 260         case protocol_v0:
 261                 get_remote_heads(&reader, &remote_refs, REF_NORMAL,
 262                                  &extra_have, &shallow);
 263                 break;
 264         case protocol_unknown_version:
 265                 BUG("unknown protocol version");
 266         }
 267
 268         local_refs = get_local_heads();
 269
 270         flags = MATCH_REFS_NONE;
 271
 272         if (send_all)
 273                 flags |= MATCH_REFS_ALL;
 274         if (args.send_mirror)
 275                 flags |= MATCH_REFS_MIRROR;
 276
 277         /* match them up */
 278         if (match_push_refs(local_refs, &remote_refs, &rs, flags))
 279                 return -1;
 280
 281         if (!is_empty_cas(&cas))
 282                 apply_push_cas(&cas, remote, remote_refs);
 283
 284         set_ref_status_for_push(remote_refs, args.send_mirror,
 285                 args.force_update);
 286
 287         ret = send_pack(&args, fd, conn, remote_refs, &extra_have);
 288
 289         if (helper_status)
 290                 print_helper_status(remote_refs);
 291
 292         close(fd[1]);
 293         close(fd[0]);
 294
 295         ret |= finish_connect(conn);
 296
 297         if (!helper_status)
 298                 transport_print_push_status(dest, remote_refs, args.verbose, 0, &reject_reasons);
 299
 300         if (!args.dry_run && remote) {
 301                 struct ref *ref;
 302                 for (ref = remote_refs; ref; ref = ref->next)
 303                         transport_update_tracking_ref(remote, ref, args.verbose);
 304         }
 305
 306         if (!ret && !transport_refs_pushed(remote_refs))
 307                 fprintf(stderr, "Everything up-to-date\n");
 308
 309         return ret;
 310 }