builtin/send-pack.c

   1 #include "builtin.h"
   2 #include "commit.h"
   3 #include "refs.h"
   4 #include "pkt-line.h"
   5 #include "sideband.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 "version.h"
  13 #include "sha1-array.h"
  14 #include "gpg-interface.h"
  15 #include "gettext.h"
  16
  17 static const char * const send_pack_usage[] = {
  18         N_("git send-pack [--all | --mirror] [--dry-run] [--force] "
  19           "[--receive-pack=<git-receive-pack>] [--verbose] [--thin] [--atomic] "
  20           "[<host>:]<directory> [<ref>...]\n"
  21           "  --all and explicit <ref> specification are mutually exclusive."),
  22         NULL,
  23 };
  24
  25 static struct send_pack_args args;
  26
  27 static void print_helper_status(struct ref *ref)
  28 {
  29         struct strbuf buf = STRBUF_INIT;
  30
  31         for (; ref; ref = ref->next) {
  32                 const char *msg = NULL;
  33                 const char *res;
  34
  35                 switch(ref->status) {
  36                 case REF_STATUS_NONE:
  37                         res = "error";
  38                         msg = "no match";
  39                         break;
  40
  41                 case REF_STATUS_OK:
  42                         res = "ok";
  43                         break;
  44
  45                 case REF_STATUS_UPTODATE:
  46                         res = "ok";
  47                         msg = "up to date";
  48                         break;
  49
  50                 case REF_STATUS_REJECT_NONFASTFORWARD:
  51                         res = "error";
  52                         msg = "non-fast forward";
  53                         break;
  54
  55                 case REF_STATUS_REJECT_FETCH_FIRST:
  56                         res = "error";
  57                         msg = "fetch first";
  58                         break;
  59
  60                 case REF_STATUS_REJECT_NEEDS_FORCE:
  61                         res = "error";
  62                         msg = "needs force";
  63                         break;
  64
  65                 case REF_STATUS_REJECT_STALE:
  66                         res = "error";
  67                         msg = "stale info";
  68                         break;
  69
  70                 case REF_STATUS_REJECT_ALREADY_EXISTS:
  71                         res = "error";
  72                         msg = "already exists";
  73                         break;
  74
  75                 case REF_STATUS_REJECT_NODELETE:
  76                 case REF_STATUS_REMOTE_REJECT:
  77                         res = "error";
  78                         break;
  79
  80                 case REF_STATUS_EXPECTING_REPORT:
  81                 default:
  82                         continue;
  83                 }
  84
  85                 strbuf_reset(&buf);
  86                 strbuf_addf(&buf, "%s %s", res, ref->name);
  87                 if (ref->remote_status)
  88                         msg = ref->remote_status;
  89                 if (msg) {
  90                         strbuf_addch(&buf, ' ');
  91                         quote_two_c_style(&buf, "", msg, 0);
  92                 }
  93                 strbuf_addch(&buf, '\n');
  94
  95                 write_or_die(1, buf.buf, buf.len);
  96         }
  97         strbuf_release(&buf);
  98 }
  99
 100 static int send_pack_config(const char *k, const char *v, void *cb)
 101 {
 102         git_gpg_config(k, v, NULL);
 103
 104         if (!strcmp(k, "push.gpgsign")) {
 105                 const char *value;
 106                 if (!git_config_get_value("push.gpgsign", &value)) {
 107                         switch (git_config_maybe_bool("push.gpgsign", value)) {
 108                         case 0:
 109                                 args.push_cert = SEND_PACK_PUSH_CERT_NEVER;
 110                                 break;
 111                         case 1:
 112                                 args.push_cert = SEND_PACK_PUSH_CERT_ALWAYS;
 113                                 break;
 114                         default:
 115                                 if (value && !strcasecmp(value, "if-asked"))
 116                                         args.push_cert = SEND_PACK_PUSH_CERT_IF_ASKED;
 117                                 else
 118                                         return error("Invalid value for '%s'", k);
 119                         }
 120                 }
 121         }
 122         return 0;
 123 }
 124
 125 int cmd_send_pack(int argc, const char **argv, const char *prefix)
 126 {
 127         int i, nr_refspecs = 0;
 128         const char **refspecs = NULL;
 129         const char *remote_name = NULL;
 130         struct remote *remote = NULL;
 131         const char *dest = NULL;
 132         int fd[2];
 133         struct child_process *conn;
 134         struct sha1_array extra_have = SHA1_ARRAY_INIT;
 135         struct sha1_array shallow = SHA1_ARRAY_INIT;
 136         struct ref *remote_refs, *local_refs;
 137         int ret;
 138         int helper_status = 0;
 139         int send_all = 0;
 140         int verbose = 0;
 141         const char *receivepack = "git-receive-pack";
 142         unsigned dry_run = 0;
 143         unsigned send_mirror = 0;
 144         unsigned force_update = 0;
 145         unsigned quiet = 0;
 146         int push_cert = 0;
 147         unsigned use_thin_pack = 0;
 148         unsigned atomic = 0;
 149         unsigned stateless_rpc = 0;
 150         int flags;
 151         unsigned int reject_reasons;
 152         int progress = -1;
 153         int from_stdin = 0;
 154         struct push_cas_option cas = {0};
 155
 156         struct option options[] = {
 157                 OPT__VERBOSITY(&verbose),
 158                 OPT_STRING(0, "receive-pack", &receivepack, "receive-pack", N_("receive pack program")),
 159                 OPT_STRING(0, "exec", &receivepack, "receive-pack", N_("receive pack program")),
 160                 OPT_STRING(0, "remote", &remote_name, "remote", N_("remote name")),
 161                 OPT_BOOL(0, "all", &send_all, N_("push all refs")),
 162                 OPT_BOOL('n' , "dry-run", &dry_run, N_("dry run")),
 163                 OPT_BOOL(0, "mirror", &send_mirror, N_("mirror all refs")),
 164                 OPT_BOOL('f', "force", &force_update, N_("force updates")),
 165                 { OPTION_CALLBACK,
 166                   0, "signed", &push_cert, "yes|no|if-asked", N_("GPG sign the push"),
 167                   PARSE_OPT_OPTARG, option_parse_push_signed },
 168                 OPT_BOOL(0, "progress", &progress, N_("force progress reporting")),
 169                 OPT_BOOL(0, "thin", &use_thin_pack, N_("use thin pack")),
 170                 OPT_BOOL(0, "atomic", &atomic, N_("request atomic transaction on remote side")),
 171                 OPT_BOOL(0, "stateless-rpc", &stateless_rpc, N_("use stateless RPC protocol")),
 172                 OPT_BOOL(0, "stdin", &from_stdin, N_("read refs from stdin")),
 173                 OPT_BOOL(0, "helper-status", &helper_status, N_("print status from remote helper")),
 174                 { OPTION_CALLBACK,
 175                   0, CAS_OPT_NAME, &cas, N_("refname>:<expect"),
 176                   N_("require old value of ref to be at this value"),
 177                   PARSE_OPT_OPTARG, parseopt_push_cas_option },
 178                 OPT_END()
 179         };
 180
 181         git_config(send_pack_config, NULL);
 182         argc = parse_options(argc, argv, prefix, options, send_pack_usage, 0);
 183         if (argc > 0) {
 184                 dest = argv[0];
 185                 refspecs = (const char **)(argv + 1);
 186                 nr_refspecs = argc - 1;
 187         }
 188
 189         if (!dest)
 190                 usage_with_options(send_pack_usage, options);
 191
 192         args.verbose = verbose;
 193         args.dry_run = dry_run;
 194         args.send_mirror = send_mirror;
 195         args.force_update = force_update;
 196         args.quiet = quiet;
 197         args.push_cert = push_cert;
 198         args.progress = progress;
 199         args.use_thin_pack = use_thin_pack;
 200         args.atomic = atomic;
 201         args.stateless_rpc = stateless_rpc;
 202
 203         if (from_stdin) {
 204                 struct argv_array all_refspecs = ARGV_ARRAY_INIT;
 205
 206                 for (i = 0; i < nr_refspecs; i++)
 207                         argv_array_push(&all_refspecs, refspecs[i]);
 208
 209                 if (args.stateless_rpc) {
 210                         const char *buf;
 211                         while ((buf = packet_read_line(0, NULL)))
 212                                 argv_array_push(&all_refspecs, buf);
 213                 } else {
 214                         struct strbuf line = STRBUF_INIT;
 215                         while (strbuf_getline(&line, stdin) != EOF)
 216                                 argv_array_push(&all_refspecs, line.buf);
 217                         strbuf_release(&line);
 218                 }
 219
 220                 refspecs = all_refspecs.argv;
 221                 nr_refspecs = all_refspecs.argc;
 222         }
 223
 224         /*
 225          * --all and --mirror are incompatible; neither makes sense
 226          * with any refspecs.
 227          */
 228         if ((refspecs && (send_all || args.send_mirror)) ||
 229             (send_all && args.send_mirror))
 230                 usage_with_options(send_pack_usage, options);
 231
 232         if (remote_name) {
 233                 remote = remote_get(remote_name);
 234                 if (!remote_has_url(remote, dest)) {
 235                         die("Destination %s is not a uri for %s",
 236                             dest, remote_name);
 237                 }
 238         }
 239
 240         if (progress == -1)
 241                 progress = !args.quiet && isatty(2);
 242         args.progress = progress;
 243
 244         if (args.stateless_rpc) {
 245                 conn = NULL;
 246                 fd[0] = 0;
 247                 fd[1] = 1;
 248         } else {
 249                 conn = git_connect(fd, dest, receivepack,
 250                         args.verbose ? CONNECT_VERBOSE : 0);
 251         }
 252
 253         get_remote_heads(fd[0], NULL, 0, &remote_refs, REF_NORMAL,
 254                          &extra_have, &shallow);
 255
 256         transport_verify_remote_names(nr_refspecs, refspecs);
 257
 258         local_refs = get_local_heads();
 259
 260         flags = MATCH_REFS_NONE;
 261
 262         if (send_all)
 263                 flags |= MATCH_REFS_ALL;
 264         if (args.send_mirror)
 265                 flags |= MATCH_REFS_MIRROR;
 266
 267         /* match them up */
 268         if (match_push_refs(local_refs, &remote_refs, nr_refspecs, refspecs, flags))
 269                 return -1;
 270
 271         if (!is_empty_cas(&cas))
 272                 apply_push_cas(&cas, remote, remote_refs);
 273
 274         set_ref_status_for_push(remote_refs, args.send_mirror,
 275                 args.force_update);
 276
 277         ret = send_pack(&args, fd, conn, remote_refs, &extra_have);
 278
 279         if (helper_status)
 280                 print_helper_status(remote_refs);
 281
 282         close(fd[1]);
 283         close(fd[0]);
 284
 285         ret |= finish_connect(conn);
 286
 287         if (!helper_status)
 288                 transport_print_push_status(dest, remote_refs, args.verbose, 0, &reject_reasons);
 289
 290         if (!args.dry_run && remote) {
 291                 struct ref *ref;
 292                 for (ref = remote_refs; ref; ref = ref->next)
 293                         transport_update_tracking_ref(remote, ref, args.verbose);
 294         }
 295
 296         if (!ret && !transport_refs_pushed(remote_refs))
 297                 fprintf(stderr, "Everything up-to-date\n");
 298
 299         return ret;
 300 }