#include "builtin.h"

#include "exec-cmd.h"

#include "gettext.h"

#include "pkt-line.h"

#include "parse-options.h"

#include "path.h"

#include "protocol.h"

#include "replace-object.h"

#include "upload-pack.h"

#include "serve.h"

#include "commit.h"

#include "environment.h"

static const char * const upload_pack_usage[] = {

  N_("git-upload-pack [--[no-]strict] [--timeout=<n>] [--stateless-rpc]\n"

     "                [--advertise-refs] <directory>"),

  NULL

};

int cmd_upload_pack(int argc, const char **argv, const char *prefix)

{

  const char *dir;

  int strict = 0;

  int advertise_refs = 0;

  int stateless_rpc = 0;

  int timeout = 0;

  struct option options[] = {

    OPT_BOOL(0, "stateless-rpc", &stateless_rpc,

       N_("quit after a single request/response exchange")),

    OPT_HIDDEN_BOOL(0, "http-backend-info-refs", &advertise_refs,

        N_("serve up the info/refs for git-http-backend")),

    OPT_ALIAS(0, "advertise-refs", "http-backend-info-refs"),

    OPT_BOOL(0, "strict", &strict,

       N_("do not try <directory>/.git/ if <directory> is no Git directory")),

    OPT_INTEGER(0, "timeout", &timeout,

          N_("interrupt transfer after <n> seconds of inactivity")),

    OPT_END()

  };

  packet_trace_identity("upload-pack");

  disable_replace_refs();

  save_commit_buffer = 0;

  xsetenv(NO_LAZY_FETCH_ENVIRONMENT, "1", 0);

  argc = parse_options(argc, argv, prefix, options, upload_pack_usage, 0);

  if (argc != 1)

    usage_with_options(upload_pack_usage, options);

  setup_path();

  dir = argv[0];

  if (!enter_repo(dir, strict))

    die("'%s' does not appear to be a git repository", dir);

  switch (determine_protocol_version_server()) {

  case protocol_v2:

    if (advertise_refs)

      protocol_v2_advertise_capabilities();

    else

      protocol_v2_serve_loop(stateless_rpc);

    break;

  case protocol_v1:

    /*

     * v1 is just the original protocol with a version string,

     * so just fall through after writing the version string.

     */

    if (advertise_refs || !stateless_rpc)

      packet_write_fmt(1, "version 1\n");

    /* fallthrough */

  case protocol_v0:

    upload_pack(advertise_refs, stateless_rpc, timeout);

    break;

  case protocol_unknown_version:

    BUG("unknown protocol version");

  }

  return 0;

}