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