/*
 * help-cmd.c -- Provide help
 *
 * ====================================================================
 *    Licensed to the Apache Software Foundation (ASF) under one
 *    or more contributor license agreements.  See the NOTICE file
 *    distributed with this work for additional information
 *    regarding copyright ownership.  The ASF licenses this file
 *    to you under the Apache License, Version 2.0 (the
 *    "License"); you may not use this file except in compliance
 *    with the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing,
 *    software distributed under the License is distributed on an
 *    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 *    KIND, either express or implied.  See the License for the
 *    specific language governing permissions and limitations
 *    under the License.
 * ====================================================================
 */

/* ==================================================================== */


/*** Includes. ***/

#include "svn_string.h"
#include "svn_error.h"
#include "svn_version.h"
#include "cl.h"

#include "svn_private_config.h"


/*** Code. ***/

/* This implements the `svn_opt_subcommand_t' interface. */
svn_error_t *
svn_cl__help(apr_getopt_t *os,
             void *baton,
             apr_pool_t *pool)
{
  svn_cl__opt_state_t *opt_state;

  /* xgettext: the %s is for SVN_VER_NUMBER. */
  char help_header_template[] =
  N_("usage: svn-bench <subcommand> [options] [args]\n"
     "Subversion command-line client, version %s.\n"
     "Type 'svn-bench help <subcommand>' for help on a specific subcommand.\n"
     "Type 'svn-bench --version' to see the program version and RA modules\n"
     "  or 'svn-bench --version --quiet' to see just the version number.\n"
     "\n"
     "Most subcommands take file and/or directory arguments, recursing\n"
     "on the directories.  If no arguments are supplied to such a\n"
     "command, it recurses on the current directory (inclusive) by default.\n"
     "\n"
     "Available subcommands:\n");

  char help_footer[] =
  N_("Subversion is a tool for version control.\n"
     "For additional information, see http://subversion.apache.org/\n");

  char *help_header =
    apr_psprintf(pool, _(help_header_template), SVN_VER_NUMBER);

  const char *ra_desc_start
    = _("The following repository access (RA) modules are available:\n\n");

  svn_stringbuf_t *version_footer;

  if (baton)
    opt_state = ((svn_cl__cmd_baton_t *) baton)->opt_state;
  else
    opt_state = NULL;

  version_footer = svn_stringbuf_create(ra_desc_start, pool);
  SVN_ERR(svn_ra_print_modules(version_footer, pool));

  return svn_opt_print_help4(os,
                             "svn-bench",   /* ### erm, derive somehow? */
                             opt_state ? opt_state->version : FALSE,
                             opt_state ? opt_state->quiet : FALSE,
                             opt_state ? opt_state->verbose : FALSE,
                             version_footer->data,
                             help_header,   /* already gettext()'d */
                             svn_cl__cmd_table,
                             svn_cl__options,
                             svn_cl__global_options,
                             _(help_footer),
                             pool);
}