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src/subversion/subversion/libsvn_client/cmdline.c  view on Meta::CPAN

/*
 * cmdline.c:  command-line processing
 *
 * ====================================================================
 *    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_client.h"
#include "svn_error.h"
#include "svn_dirent_uri.h"
#include "svn_path.h"
#include "svn_opt.h"
#include "svn_utf.h"

#include "client.h"

#include "private/svn_opt_private.h"

#include "svn_private_config.h"


/*** Code. ***/

#define DEFAULT_ARRAY_SIZE 5


/* Attempt to find the repository root url for TARGET, possibly using CTX for
 * authentication.  If one is found and *ROOT_URL is not NULL, then just check
 * that the root url for TARGET matches the value given in *ROOT_URL and
 * return an error if it does not.  If one is found and *ROOT_URL is NULL then
 * set *ROOT_URL to the root url for TARGET, allocated from POOL.
 * If a root url is not found for TARGET because it does not exist in the
 * repository, then return with no error.
 *
 * TARGET is a UTF-8 encoded string that is fully canonicalized and escaped.
 */
static svn_error_t *
check_root_url_of_target(const char **root_url,
                         const char *target,
                         svn_client_ctx_t *ctx,
                         apr_pool_t *pool)
{
  svn_error_t *err;
  const char *tmp_root_url;
  const char *truepath;
  svn_opt_revision_t opt_rev;

  SVN_ERR(svn_opt_parse_path(&opt_rev, &truepath, target, pool));
  if (!svn_path_is_url(truepath))
    SVN_ERR(svn_dirent_get_absolute(&truepath, truepath, pool));

  err = svn_client_get_repos_root(&tmp_root_url, NULL, truepath,
                                  ctx, pool, pool);

  if (err)
    {
      /* It is OK if the given target does not exist, it just means
       * we will not be able to determine the root url from this particular
       * argument.
       *
       * If the target itself is a URL to a repository that does not exist,
       * that's fine, too. The callers will deal with this argument in an
       * appropriate manner if it does not make any sense.
       *
       * Also tolerate locally added targets ("bad revision" error).
       */
      if ((err->apr_err == SVN_ERR_ENTRY_NOT_FOUND)
          || (err->apr_err == SVN_ERR_WC_PATH_NOT_FOUND)
          || (err->apr_err == SVN_ERR_WC_NOT_WORKING_COPY)
          || (err->apr_err == SVN_ERR_RA_LOCAL_REPOS_OPEN_FAILED)
          || (err->apr_err == SVN_ERR_CLIENT_BAD_REVISION))
        {
          svn_error_clear(err);
          return SVN_NO_ERROR;
        }
      else
        return svn_error_trace(err);
     }

   if (*root_url && tmp_root_url)
     {
       if (strcmp(*root_url, tmp_root_url) != 0)
         return svn_error_createf(SVN_ERR_ILLEGAL_TARGET, NULL,
                                  _("All non-relative targets must have "
                                    "the same root URL"));
     }
   else
     *root_url = tmp_root_url;

   return SVN_NO_ERROR;
}

/* Note: This is substantially copied from svn_opt__args_to_target_array() in
 * order to move to libsvn_client while maintaining backward compatibility. */
svn_error_t *