builtin/send-pack.c

   1 #define USE_THE_REPOSITORY_VARIABLE
   2 #include "builtin.h"
   3 #include "config.h"
   4 #include "hex.h"
   5 #include "pkt-line.h"
   6 #include "run-command.h"
   7 #include "remote.h"
   8 #include "connect.h"
   9 #include "send-pack.h"
  10 #include "quote.h"
  11 #include "transport.h"
  12 #include "oid-array.h"
  13 #include "gettext.h"
  14 #include "protocol.h"
  15 #include "parse-options.h"
  16 #include "write-or-die.h"
  17
  18 static const char * const send_pack_usage[] = {
  19         N_("git send-pack [--mirror] [--dry-run] [--force]\n"
  20            "              [--receive-pack=<git-receive-pack>]\n"
  21            "              [--verbose] [--thin] [--atomic]\n"
  22            "              [--[no-]signed | --signed=(true|false|if-asked)]\n"
  23            "              [<host>:]<directory> (--all | <ref>...)"),
  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         struct ref_push_report *report;
  33
  34         for (; ref; ref = ref->next) {
  35                 const char *msg = NULL;
  36                 const char *res;
  37                 int count = 0;
  38
  39                 switch(ref->status) {
  40                 case REF_STATUS_NONE:
  41                         res = "error";
  42                         msg = "no match";
  43                         break;
  44
  45                 case REF_STATUS_OK:
  46                         res = "ok";
  47                         break;
  48
  49                 case REF_STATUS_UPTODATE:
  50                         res = "ok";
  51                         msg = "up to date";
  52                         break;
  53
  54                 case REF_STATUS_REJECT_NONFASTFORWARD:
  55                         res = "error";
  56                         msg = "non-fast forward";
  57                         break;
  58
  59                 case REF_STATUS_REJECT_FETCH_FIRST:
  60                         res = "error";
  61                         msg = "fetch first";
  62                         break;
  63
  64                 case REF_STATUS_REJECT_NEEDS_FORCE:
  65                         res = "error";
  66                         msg = "needs force";
  67                         break;
  68
  69                 case REF_STATUS_REJECT_STALE:
  70                         res = "error";
  71                         msg = "stale info";
  72                         break;
  73
  74                 case REF_STATUS_REJECT_REMOTE_UPDATED:
  75                         res = "error";
  76                         msg = "remote ref updated since checkout";
  77                         break;
  78
  79                 case REF_STATUS_REJECT_ALREADY_EXISTS:
  80                         res = "error";
  81                         msg = "already exists";
  82                         break;
  83
  84                 case REF_STATUS_REJECT_NODELETE:
  85                 case REF_STATUS_REMOTE_REJECT:
  86                         res = "error";
  87                         break;
  88
  89                 case REF_STATUS_EXPECTING_REPORT:
  90                         res = "error";
  91                         msg = "expecting report";
  92                         break;
  93
  94                 default:
  95                         continue;
  96                 }
  97
  98                 strbuf_reset(&buf);
  99                 strbuf_addf(&buf, "%s %s", res, ref->name);
 100                 if (ref->remote_status)
 101                         msg = ref->remote_status;
 102                 if (msg) {
 103                         strbuf_addch(&buf, ' ');
 104                         quote_two_c_style(&buf, "", msg, 0);
 105                 }
 106                 strbuf_addch(&buf, '\n');
 107
 108                 if (ref->status == REF_STATUS_OK) {
 109                         for (report = ref->report; report; report = report->next) {
 110                                 if (count++ > 0)
 111                                         strbuf_addf(&buf, "ok %s\n", ref->name);
 112                                 if (report->ref_name)
 113                                         strbuf_addf(&buf, "option refname %s\n",
 114                                                 report->ref_name);
 115                                 if (report->old_oid)
 116                                         strbuf_addf(&buf, "option old-oid %s\n",
 117                                                 oid_to_hex(report->old_oid));
 118                                 if (report->new_oid)
 119                                         strbuf_addf(&buf, "option new-oid %s\n",
 120                                                 oid_to_hex(report->new_oid));
 121                                 if (report->forced_update)
 122                                         strbuf_addstr(&buf, "option forced-update\n");
 123                         }
 124                 }
 125                 write_or_die(1, buf.buf, buf.len);
 126         }
 127         strbuf_release(&buf);
 128 }
 129
 130 static int send_pack_config(const char *k, const char *v,
 131                             const struct config_context *ctx, void *cb)
 132 {
 133         if (!strcmp(k, "push.gpgsign")) {
 134                 switch (git_parse_maybe_bool(v)) {
 135                 case 0:
 136                         args.push_cert = SEND_PACK_PUSH_CERT_NEVER;
 137                         break;
 138                 case 1:
 139                         args.push_cert = SEND_PACK_PUSH_CERT_ALWAYS;
 140                         break;
 141                 default:
 142                         if (!strcasecmp(v, "if-asked"))
 143                                 args.push_cert = SEND_PACK_PUSH_CERT_IF_ASKED;
 144                         else
 145                                 return error(_("invalid value for '%s'"), k);
 146                 }
 147         }
 148         return git_default_config(k, v, ctx, cb);
 149 }
 150
 151 int cmd_send_pack(int argc,
 152                   const char **argv,
 153                   const char *prefix,
 154                   struct repository *repo UNUSED)
 155 {
 156         struct refspec rs = REFSPEC_INIT_PUSH;
 157         const char *remote_name = NULL;
 158         struct remote *remote = NULL;
 159         const char *dest = NULL;
 160         int fd[2];
 161         struct child_process *conn;
 162         struct oid_array extra_have = OID_ARRAY_INIT;
 163         struct oid_array shallow = OID_ARRAY_INIT;
 164         struct ref *remote_refs, *local_refs;
 165         int ret;
 166         int helper_status = 0;
 167         int send_all = 0;
 168         int verbose = 0;
 169         const char *receivepack = "git-receive-pack";
 170         unsigned dry_run = 0;
 171         unsigned send_mirror = 0;
 172         unsigned force_update = 0;
 173         unsigned quiet = 0;
 174         int push_cert = 0;
 175         struct string_list push_options = STRING_LIST_INIT_NODUP;
 176         unsigned use_thin_pack = 0;
 177         unsigned atomic = 0;
 178         unsigned stateless_rpc = 0;
 179         int flags;
 180         unsigned int reject_reasons;
 181         int progress = -1;
 182         int from_stdin = 0;
 183         struct push_cas_option cas = {0};
 184         int force_if_includes = 0;
 185         struct packet_reader reader;
 186
 187         struct option options[] = {
 188                 OPT__VERBOSITY(&verbose),
 189                 OPT_STRING(0, "receive-pack", &receivepack, "receive-pack", N_("receive pack program")),
 190                 OPT_STRING(0, "exec", &receivepack, "receive-pack", N_("receive pack program")),
 191                 OPT_STRING(0, "remote", &remote_name, "remote", N_("remote name")),
 192                 OPT_BOOL(0, "all", &send_all, N_("push all refs")),
 193                 OPT_BOOL('n' , "dry-run", &dry_run, N_("dry run")),
 194                 OPT_BOOL(0, "mirror", &send_mirror, N_("mirror all refs")),
 195                 OPT_BOOL('f', "force", &force_update, N_("force updates")),
 196                 OPT_CALLBACK_F(0, "signed", &push_cert, "(yes|no|if-asked)", N_("GPG sign the push"),
 197                   PARSE_OPT_OPTARG, option_parse_push_signed),
 198                 OPT_STRING_LIST(0, "push-option", &push_options,
 199                                 N_("server-specific"),
 200                                 N_("option to transmit")),
 201                 OPT_BOOL(0, "progress", &progress, N_("force progress reporting")),
 202                 OPT_BOOL(0, "thin", &use_thin_pack, N_("use thin pack")),
 203                 OPT_BOOL(0, "atomic", &atomic, N_("request atomic transaction on remote side")),
 204                 OPT_BOOL(0, "stateless-rpc", &stateless_rpc, N_("use stateless RPC protocol")),
 205                 OPT_BOOL(0, "stdin", &from_stdin, N_("read refs from stdin")),
 206                 OPT_BOOL(0, "helper-status", &helper_status, N_("print status from remote helper")),
 207                 OPT_CALLBACK_F(0, "force-with-lease", &cas, N_("<refname>:<expect>"),
 208                   N_("require old value of ref to be at this value"),
 209                   PARSE_OPT_OPTARG, parseopt_push_cas_option),
 210                 OPT_BOOL(0, TRANS_OPT_FORCE_IF_INCLUDES, &force_if_includes,
 211                          N_("require remote updates to be integrated locally")),
 212                 OPT_END()
 213         };
 214
 215         git_config(send_pack_config, NULL);
 216         argc = parse_options(argc, argv, prefix, options, send_pack_usage, 0);
 217         if (argc > 0) {
 218                 dest = argv[0];
 219                 refspec_appendn(&rs, argv + 1, argc - 1);
 220         }
 221
 222         if (!dest)
 223                 usage_with_options(send_pack_usage, options);
 224
 225         args.verbose = verbose;
 226         args.dry_run = dry_run;
 227         args.send_mirror = send_mirror;
 228         args.force_update = force_update;
 229         args.quiet = quiet;
 230         args.push_cert = push_cert;
 231         args.progress = progress;
 232         args.use_thin_pack = use_thin_pack;
 233         args.atomic = atomic;
 234         args.stateless_rpc = stateless_rpc;
 235         args.push_options = push_options.nr ? &push_options : NULL;
 236         args.url = dest;
 237
 238         if (from_stdin) {
 239                 if (args.stateless_rpc) {
 240                         const char *buf;
 241                         while ((buf = packet_read_line(0, NULL)))
 242                                 refspec_append(&rs, buf);
 243                 } else {
 244                         struct strbuf line = STRBUF_INIT;
 245                         while (strbuf_getline(&line, stdin) != EOF)
 246                                 refspec_append(&rs, line.buf);
 247                         strbuf_release(&line);
 248                 }
 249         }
 250
 251         /*
 252          * --all and --mirror are incompatible; neither makes sense
 253          * with any refspecs.
 254          */
 255         if ((rs.nr > 0 && (send_all || args.send_mirror)) ||
 256             (send_all && args.send_mirror))
 257                 usage_with_options(send_pack_usage, options);
 258
 259         if (remote_name) {
 260                 remote = remote_get(remote_name);
 261                 if (!remote_has_url(remote, dest)) {
 262                         die("Destination %s is not a uri for %s",
 263                             dest, remote_name);
 264                 }
 265         }
 266
 267         if (progress == -1)
 268                 progress = !args.quiet && isatty(2);
 269         args.progress = progress;
 270
 271         if (args.stateless_rpc) {
 272                 conn = NULL;
 273                 fd[0] = 0;
 274                 fd[1] = 1;
 275         } else {
 276                 conn = git_connect(fd, dest, "git-receive-pack", receivepack,
 277                         args.verbose ? CONNECT_VERBOSE : 0);
 278         }
 279
 280         packet_reader_init(&reader, fd[0], NULL, 0,
 281                            PACKET_READ_CHOMP_NEWLINE |
 282                            PACKET_READ_GENTLE_ON_EOF |
 283                            PACKET_READ_DIE_ON_ERR_PACKET);
 284
 285         switch (discover_version(&reader)) {
 286         case protocol_v2:
 287                 die("support for protocol v2 not implemented yet");
 288                 break;
 289         case protocol_v1:
 290         case protocol_v0:
 291                 get_remote_heads(&reader, &remote_refs, REF_NORMAL,
 292                                  &extra_have, &shallow);
 293                 break;
 294         case protocol_unknown_version:
 295                 BUG("unknown protocol version");
 296         }
 297
 298         local_refs = get_local_heads();
 299
 300         flags = MATCH_REFS_NONE;
 301
 302         if (send_all)
 303                 flags |= MATCH_REFS_ALL;
 304         if (args.send_mirror)
 305                 flags |= MATCH_REFS_MIRROR;
 306
 307         /* match them up */
 308         if (match_push_refs(local_refs, &remote_refs, &rs, flags))
 309                 return -1;
 310
 311         if (!is_empty_cas(&cas))
 312                 apply_push_cas(&cas, remote, remote_refs);
 313
 314         if (!is_empty_cas(&cas) && force_if_includes)
 315                 cas.use_force_if_includes = 1;
 316
 317         set_ref_status_for_push(remote_refs, args.send_mirror,
 318                 args.force_update);
 319
 320         ret = send_pack(&args, fd, conn, remote_refs, &extra_have);
 321
 322         if (helper_status)
 323                 print_helper_status(remote_refs);
 324
 325         close(fd[1]);
 326         close(fd[0]);
 327
 328         ret |= finish_connect(conn);
 329
 330         if (!helper_status)
 331                 transport_print_push_status(dest, remote_refs, args.verbose, 0, &reject_reasons);
 332
 333         if (!args.dry_run && remote) {
 334                 struct ref *ref;
 335                 for (ref = remote_refs; ref; ref = ref->next)
 336                         transport_update_tracking_ref(remote, ref, args.verbose);
 337         }
 338
 339         if (!ret && !transport_refs_pushed(remote_refs))
 340                 /* stable plumbing output; do not modify or localize */
 341                 fprintf(stderr, "Everything up-to-date\n");
 342
 343         free_refs(remote_refs);
 344         free_refs(local_refs);
 345         refspec_clear(&rs);
 346         oid_array_clear(&shallow);
 347         clear_cas_option(&cas);
 348         return ret;
 349 }