1/*
2 * revert.c:  wrapper around wc revert functionality.
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/* ==================================================================== */
25
26
27
28/*** Includes. ***/
29
30#include "svn_path.h"
31#include "svn_wc.h"
32#include "svn_client.h"
33#include "svn_dirent_uri.h"
34#include "svn_hash.h"
35#include "svn_pools.h"
36#include "svn_error.h"
37#include "svn_time.h"
38#include "svn_config.h"
39#include "client.h"
40#include "private/svn_wc_private.h"
41
42#include "svn_private_config.h"
43
44
45/*** Code. ***/
46
47struct revert_with_write_lock_baton {
48  const char *local_abspath;
49  svn_depth_t depth;
50  svn_boolean_t use_commit_times;
51  const apr_array_header_t *changelists;
52  svn_boolean_t clear_changelists;
53  svn_boolean_t metadata_only;
54  svn_client_ctx_t *ctx;
55};
56
57/* (Note: All arguments are in the baton above.)
58
59   Attempt to revert LOCAL_ABSPATH.
60
61   If DEPTH is svn_depth_empty, revert just the properties on the
62   directory; else if svn_depth_files, revert the properties and any
63   files immediately under the directory; else if
64   svn_depth_immediates, revert all of the preceding plus properties
65   on immediate subdirectories; else if svn_depth_infinity, revert
66   path and everything under it fully recursively.
67
68   CHANGELISTS is an array of const char * changelist names, used as a
69   restrictive filter on items reverted; that is, don't revert any
70   item unless it's a member of one of those changelists.  If
71   CHANGELISTS is empty (or altogether NULL), no changelist filtering occurs.
72
73   Consult CTX to determine whether or not to revert timestamp to the
74   time of last commit ('use-commit-times = yes').
75
76   If PATH is unversioned, return SVN_ERR_UNVERSIONED_RESOURCE. */
77static svn_error_t *
78revert(void *baton, apr_pool_t *result_pool, apr_pool_t *scratch_pool)
79{
80  struct revert_with_write_lock_baton *b = baton;
81  svn_error_t *err;
82
83  err = svn_wc_revert5(b->ctx->wc_ctx,
84                       b->local_abspath,
85                       b->depth,
86                       b->use_commit_times,
87                       b->changelists,
88                       b->clear_changelists,
89                       b->metadata_only,
90                       b->ctx->cancel_func, b->ctx->cancel_baton,
91                       b->ctx->notify_func2, b->ctx->notify_baton2,
92                       scratch_pool);
93
94  if (err)
95    {
96      /* If target isn't versioned, just send a 'skip'
97         notification and move on. */
98      if (err->apr_err == SVN_ERR_ENTRY_NOT_FOUND
99          || err->apr_err == SVN_ERR_UNVERSIONED_RESOURCE
100          || err->apr_err == SVN_ERR_WC_PATH_NOT_FOUND)
101        {
102          if (b->ctx->notify_func2)
103            {
104              svn_wc_notify_t *notify;
105
106              notify = svn_wc_create_notify(b->local_abspath,
107                                            svn_wc_notify_skip,
108                                            scratch_pool);
109
110              notify->err = err;
111
112              b->ctx->notify_func2(b->ctx->notify_baton2,
113                                   notify, scratch_pool);
114            }
115          svn_error_clear(err);
116        }
117      else
118        return svn_error_trace(err);
119    }
120
121  return SVN_NO_ERROR;
122}
123
124
125svn_error_t *
126svn_client_revert3(const apr_array_header_t *paths,
127                   svn_depth_t depth,
128                   const apr_array_header_t *changelists,
129                   svn_boolean_t clear_changelists,
130                   svn_boolean_t metadata_only,
131                   svn_client_ctx_t *ctx,
132                   apr_pool_t *pool)
133{
134  apr_pool_t *iterpool;
135  svn_error_t *err = SVN_NO_ERROR;
136  int i;
137  svn_config_t *cfg;
138  svn_boolean_t use_commit_times;
139  struct revert_with_write_lock_baton baton;
140
141  /* Don't even attempt to modify the working copy if any of the
142   * targets look like URLs. URLs are invalid input. */
143  for (i = 0; i < paths->nelts; i++)
144    {
145      const char *path = APR_ARRAY_IDX(paths, i, const char *);
146
147      if (svn_path_is_url(path))
148        return svn_error_createf(SVN_ERR_ILLEGAL_TARGET, NULL,
149                                 _("'%s' is not a local path"), path);
150    }
151
152  cfg = ctx->config
153        ? svn_hash_gets(ctx->config, SVN_CONFIG_CATEGORY_CONFIG)
154        : NULL;
155
156  SVN_ERR(svn_config_get_bool(cfg, &use_commit_times,
157                              SVN_CONFIG_SECTION_MISCELLANY,
158                              SVN_CONFIG_OPTION_USE_COMMIT_TIMES,
159                              FALSE));
160
161  iterpool = svn_pool_create(pool);
162
163  for (i = 0; i < paths->nelts; i++)
164    {
165      const char *path = APR_ARRAY_IDX(paths, i, const char *);
166      const char *local_abspath, *lock_target;
167      svn_boolean_t wc_root;
168
169      svn_pool_clear(iterpool);
170
171      /* See if we've been asked to cancel this operation. */
172      if ((ctx->cancel_func)
173          && ((err = ctx->cancel_func(ctx->cancel_baton))))
174        goto errorful;
175
176      err = svn_dirent_get_absolute(&local_abspath, path, iterpool);
177      if (err)
178        goto errorful;
179
180      baton.local_abspath = local_abspath;
181      baton.depth = depth;
182      baton.use_commit_times = use_commit_times;
183      baton.changelists = changelists;
184      baton.clear_changelists = clear_changelists;
185      baton.metadata_only = metadata_only;
186      baton.ctx = ctx;
187
188      err = svn_wc__is_wcroot(&wc_root, ctx->wc_ctx, local_abspath, iterpool);
189      if (err)
190        goto errorful;
191      lock_target = wc_root ? local_abspath
192                            : svn_dirent_dirname(local_abspath, pool);
193      err = svn_wc__call_with_write_lock(revert, &baton, ctx->wc_ctx,
194                                         lock_target, FALSE,
195                                         iterpool, iterpool);
196      if (err)
197        goto errorful;
198    }
199
200 errorful:
201
202  {
203    /* Sleep to ensure timestamp integrity. */
204    const char *sleep_path = NULL;
205
206    /* Only specify a path if we are certain all paths are on the
207       same filesystem */
208    if (paths->nelts == 1)
209      sleep_path = APR_ARRAY_IDX(paths, 0, const char *);
210
211    svn_io_sleep_for_timestamps(sleep_path, iterpool);
212  }
213
214  svn_pool_destroy(iterpool);
215
216  return svn_error_trace(err);
217}
218