split_url.c revision 299742 
1/*
2 * checkout.c : read a repository and drive a checkout editor.
3 *
4 * ====================================================================
5 *    Licensed to the Apache Software Foundation (ASF) under one
6 *    or more contributor license agreements.  See the NOTICE file
7 *    distributed with this work for additional information
8 *    regarding copyright ownership.  The ASF licenses this file
9 *    to you under the Apache License, Version 2.0 (the
10 *    "License"); you may not use this file except in compliance
11 *    with the License.  You may obtain a copy of the License at
12 *
13 *      http://www.apache.org/licenses/LICENSE-2.0
14 *
15 *    Unless required by applicable law or agreed to in writing,
16 *    software distributed under the License is distributed on an
17 *    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
18 *    KIND, either express or implied.  See the License for the
19 *    specific language governing permissions and limitations
20 *    under the License.
21 * ====================================================================
22 */
23
24#include "ra_local.h"
25#include <string.h>
26#include "svn_path.h"
27#include "svn_dirent_uri.h"
28#include "svn_private_config.h"
29
30
31svn_error_t *
32svn_ra_local__split_URL(svn_repos_t **repos,
33                        const char **repos_root_url,
34                        const char **fs_path,
35                        const char *URL,
36                        apr_pool_t *pool)
37{
38  svn_error_t *err = SVN_NO_ERROR;
39  const char *repos_dirent;
40  const char *repos_root_dirent;
41  svn_stringbuf_t *urlbuf;
42  apr_size_t root_end;
43
44  SVN_ERR(svn_uri_get_dirent_from_file_url(&repos_dirent, URL, pool));
45
46  /* Search for a repository in the full path. */
47  repos_root_dirent = svn_repos_find_root_path(repos_dirent, pool);
48  if (!repos_root_dirent)
49    return svn_error_createf(SVN_ERR_RA_LOCAL_REPOS_OPEN_FAILED, NULL,
50                             _("Unable to open repository '%s'"), URL);
51
52  /* Attempt to open a repository at URL. */
53  err = svn_repos_open3(repos, repos_root_dirent, NULL, pool, pool);
54  if (err)
55    return svn_error_createf(SVN_ERR_RA_LOCAL_REPOS_OPEN_FAILED, err,
56                             _("Unable to open repository '%s'"), URL);
57
58  /* Assert capabilities directly, since client == server. */
59  {
60    apr_array_header_t *caps = apr_array_make(pool, 1, sizeof(const char *));
61    APR_ARRAY_PUSH(caps, const char *) = SVN_RA_CAPABILITY_MERGEINFO;
62    SVN_ERR(svn_repos_remember_client_capabilities(*repos, caps));
63  }
64
65  /* = apr_pstrcat(pool,
66                   "/",
67                   svn_dirent_skip_ancestor(repos_root_dirent, repos_dirent),
68                   (const char *)NULL); */
69  root_end = strlen(repos_root_dirent);
70  if (! repos_dirent[root_end])
71    *fs_path = "/";
72  else if (repos_dirent[root_end] == '/')
73    *fs_path = &repos_dirent[root_end];
74  else
75    {
76      /* On Windows "C:/" is the parent directory of "C:/dir" */
77      *fs_path = &repos_dirent[root_end-1];
78      SVN_ERR_ASSERT((*fs_path)[0] == '/');
79    }
80
81  /* Remove the path components after the root dirent from the original URL,
82     to get a URL to the repository root.
83
84     We don't use svn_uri_get_file_url_from_dirent() here as that would
85     transform several uris to form a differently formed url than
86     svn_uri_canonicalize would.
87
88     E.g. file://localhost/C:/dir -> file:///C:/dir
89          (a transform that was originally supported directly by this function,
90           before the implementation moved)
91
92          On on Windows:
93          file:///dir -> file:///E:/dir  (When E: is the current disk)
94     */
95  urlbuf = svn_stringbuf_create(URL, pool);
96  svn_path_remove_components(urlbuf,
97                             svn_path_component_count(repos_dirent)
98                             - svn_path_component_count(repos_root_dirent));
99  *repos_root_url = urlbuf->data;
100
101  /* Configure hook script environment variables. */
102  SVN_ERR(svn_repos_hooks_setenv(*repos, NULL, pool));
103
104  return SVN_NO_ERROR;
105}
106