Andrew's git - gitweb.git/blob - 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
  19static 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
  27static struct send_pack_args args;
  28
  29static 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
 102static 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
 127int 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}