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 0;
 125 }
 126
 127 int cmd_send_pack(int argc, const char **argv, const char *prefix)
 128 {
 129         int i, nr_refspecs = 0;
 130         const char **refspecs = NULL;
 131         const char *remote_name = NULL;
 132         struct remote *remote = NULL;
 133         const char *dest = NULL;
 134         int fd[2];
 135         struct child_process *conn;
 136         struct oid_array extra_have = OID_ARRAY_INIT;
 137         struct oid_array shallow = OID_ARRAY_INIT;
 138         struct ref *remote_refs, *local_refs;
 139         int ret;
 140         int helper_status = 0;
 141         int send_all = 0;
 142         int verbose = 0;
 143         const char *receivepack = "git-receive-pack";
 144         unsigned dry_run = 0;
 145         unsigned send_mirror = 0;
 146         unsigned force_update = 0;
 147         unsigned quiet = 0;
 148         int push_cert = 0;
 149         struct string_list push_options = STRING_LIST_INIT_NODUP;
 150         unsigned use_thin_pack = 0;
 151         unsigned atomic = 0;
 152         unsigned stateless_rpc = 0;
 153         int flags;
 154         unsigned int reject_reasons;
 155         int progress = -1;
 156         int from_stdin = 0;
 157         struct push_cas_option cas = {0};
 158         struct packet_reader reader;
 159
 160         struct option options[] = {
 161                 OPT__VERBOSITY(&verbose),
 162                 OPT_STRING(0, "receive-pack", &receivepack, "receive-pack", N_("receive pack program")),
 163                 OPT_STRING(0, "exec", &receivepack, "receive-pack", N_("receive pack program")),
 164                 OPT_STRING(0, "remote", &remote_name, "remote", N_("remote name")),
 165                 OPT_BOOL(0, "all", &send_all, N_("push all refs")),
 166                 OPT_BOOL('n' , "dry-run", &dry_run, N_("dry run")),
 167                 OPT_BOOL(0, "mirror", &send_mirror, N_("mirror all refs")),
 168                 OPT_BOOL('f', "force", &force_update, N_("force updates")),
 169                 { OPTION_CALLBACK,
 170                   0, "signed", &push_cert, "yes|no|if-asked", N_("GPG sign the push"),
 171                   PARSE_OPT_OPTARG, option_parse_push_signed },
 172                 OPT_STRING_LIST(0, "push-option", &push_options,
 173                                 N_("server-specific"),
 174                                 N_("option to transmit")),
 175                 OPT_BOOL(0, "progress", &progress, N_("force progress reporting")),
 176                 OPT_BOOL(0, "thin", &use_thin_pack, N_("use thin pack")),
 177                 OPT_BOOL(0, "atomic", &atomic, N_("request atomic transaction on remote side")),
 178                 OPT_BOOL(0, "stateless-rpc", &stateless_rpc, N_("use stateless RPC protocol")),
 179                 OPT_BOOL(0, "stdin", &from_stdin, N_("read refs from stdin")),
 180                 OPT_BOOL(0, "helper-status", &helper_status, N_("print status from remote helper")),
 181                 { OPTION_CALLBACK,
 182                   0, CAS_OPT_NAME, &cas, N_("refname>:<expect"),
 183                   N_("require old value of ref to be at this value"),
 184                   PARSE_OPT_OPTARG, parseopt_push_cas_option },
 185                 OPT_END()
 186         };
 187
 188         git_config(send_pack_config, NULL);
 189         argc = parse_options(argc, argv, prefix, options, send_pack_usage, 0);
 190         if (argc > 0) {
 191                 dest = argv[0];
 192                 refspecs = (const char **)(argv + 1);
 193                 nr_refspecs = argc - 1;
 194         }
 195
 196         if (!dest)
 197                 usage_with_options(send_pack_usage, options);
 198
 199         args.verbose = verbose;
 200         args.dry_run = dry_run;
 201         args.send_mirror = send_mirror;
 202         args.force_update = force_update;
 203         args.quiet = quiet;
 204         args.push_cert = push_cert;
 205         args.progress = progress;
 206         args.use_thin_pack = use_thin_pack;
 207         args.atomic = atomic;
 208         args.stateless_rpc = stateless_rpc;
 209         args.push_options = push_options.nr ? &push_options : NULL;
 210
 211         if (from_stdin) {
 212                 struct argv_array all_refspecs = ARGV_ARRAY_INIT;
 213
 214                 for (i = 0; i < nr_refspecs; i++)
 215                         argv_array_push(&all_refspecs, refspecs[i]);
 216
 217                 if (args.stateless_rpc) {
 218                         const char *buf;
 219                         while ((buf = packet_read_line(0, NULL)))
 220                                 argv_array_push(&all_refspecs, buf);
 221                 } else {
 222                         struct strbuf line = STRBUF_INIT;
 223                         while (strbuf_getline(&line, stdin) != EOF)
 224                                 argv_array_push(&all_refspecs, line.buf);
 225                         strbuf_release(&line);
 226                 }
 227
 228                 refspecs = all_refspecs.argv;
 229                 nr_refspecs = all_refspecs.argc;
 230         }
 231
 232         /*
 233          * --all and --mirror are incompatible; neither makes sense
 234          * with any refspecs.
 235          */
 236         if ((nr_refspecs > 0 && (send_all || args.send_mirror)) ||
 237             (send_all && args.send_mirror))
 238                 usage_with_options(send_pack_usage, options);
 239
 240         if (remote_name) {
 241                 remote = remote_get(remote_name);
 242                 if (!remote_has_url(remote, dest)) {
 243                         die("Destination %s is not a uri for %s",
 244                             dest, remote_name);
 245                 }
 246         }
 247
 248         if (progress == -1)
 249                 progress = !args.quiet && isatty(2);
 250         args.progress = progress;
 251
 252         if (args.stateless_rpc) {
 253                 conn = NULL;
 254                 fd[0] = 0;
 255                 fd[1] = 1;
 256         } else {
 257                 conn = git_connect(fd, dest, receivepack,
 258                         args.verbose ? CONNECT_VERBOSE : 0);
 259         }
 260
 261         packet_reader_init(&reader, fd[0], NULL, 0,
 262                            PACKET_READ_CHOMP_NEWLINE |
 263                            PACKET_READ_GENTLE_ON_EOF);
 264
 265         switch (discover_version(&reader)) {
 266         case protocol_v2:
 267                 die("support for protocol v2 not implemented yet");
 268                 break;
 269         case protocol_v1:
 270         case protocol_v0:
 271                 get_remote_heads(&reader, &remote_refs, REF_NORMAL,
 272                                  &extra_have, &shallow);
 273                 break;
 274         case protocol_unknown_version:
 275                 BUG("unknown protocol version");
 276         }
 277
 278         transport_verify_remote_names(nr_refspecs, refspecs);
 279
 280         local_refs = get_local_heads();
 281
 282         flags = MATCH_REFS_NONE;
 283
 284         if (send_all)
 285                 flags |= MATCH_REFS_ALL;
 286         if (args.send_mirror)
 287                 flags |= MATCH_REFS_MIRROR;
 288
 289         /* match them up */
 290         if (match_push_refs(local_refs, &remote_refs, nr_refspecs, refspecs, flags))
 291                 return -1;
 292
 293         if (!is_empty_cas(&cas))
 294                 apply_push_cas(&cas, remote, remote_refs);
 295
 296         set_ref_status_for_push(remote_refs, args.send_mirror,
 297                 args.force_update);
 298
 299         ret = send_pack(&args, fd, conn, remote_refs, &extra_have);
 300
 301         if (helper_status)
 302                 print_helper_status(remote_refs);
 303
 304         close(fd[1]);
 305         close(fd[0]);
 306
 307         ret |= finish_connect(conn);
 308
 309         if (!helper_status)
 310                 transport_print_push_status(dest, remote_refs, args.verbose, 0, &reject_reasons);
 311
 312         if (!args.dry_run && remote) {
 313                 struct ref *ref;
 314                 for (ref = remote_refs; ref; ref = ref->next)
 315                         transport_update_tracking_ref(remote, ref, args.verbose);
 316         }
 317
 318         if (!ret && !transport_refs_pushed(remote_refs))
 319                 fprintf(stderr, "Everything up-to-date\n");
 320
 321         return ret;
 322 }