1 files changed, 159 insertions, 0 deletions
diff --git a/subversion/libsvn_subr/compat.c b/subversion/libsvn_subr/compat.c
new file mode 100644
index 0000000..2089828
--- /dev/null
+++ b/subversion/libsvn_subr/compat.c
@@ -0,0 +1,159 @@
+/*
+ * compat.c :  Wrappers and callbacks for compatibility.
+ *
+ * ====================================================================
+ *    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.
+ * ====================================================================
+ */
+
+#include <apr_pools.h>
+#include <apr_strings.h>
+
+#include "svn_hash.h"
+#include "svn_types.h"
+#include "svn_error.h"
+#include "svn_compat.h"
+#include "svn_props.h"
+
+
+/* Baton for use with svn_compat_wrap_commit_callback */
+struct commit_wrapper_baton {
+  void *baton;
+  svn_commit_callback_t callback;
+};
+
+/* This implements svn_commit_callback2_t. */
+static svn_error_t *
+commit_wrapper_callback(const svn_commit_info_t *commit_info,
+                        void *baton, apr_pool_t *pool)
+{
+  struct commit_wrapper_baton *cwb = baton;
+
+  if (cwb->callback)
+    return cwb->callback(commit_info->revision,
+                         commit_info->date,
+                         commit_info->author,
+                         cwb->baton);
+
+  return SVN_NO_ERROR;
+}
+
+void
+svn_compat_wrap_commit_callback(svn_commit_callback2_t *callback2,
+                                void **callback2_baton,
+                                svn_commit_callback_t callback,
+                                void *callback_baton,
+                                apr_pool_t *pool)
+{
+  struct commit_wrapper_baton *cwb = apr_palloc(pool, sizeof(*cwb));
+
+  /* Set the user provided old format callback in the baton */
+  cwb->baton = callback_baton;
+  cwb->callback = callback;
+
+  *callback2_baton = cwb;
+  *callback2 = commit_wrapper_callback;
+}
+
+
+void
+svn_compat_log_revprops_clear(apr_hash_t *revprops)
+{
+  if (revprops)
+    {
+      svn_hash_sets(revprops, SVN_PROP_REVISION_AUTHOR, NULL);
+      svn_hash_sets(revprops, SVN_PROP_REVISION_DATE, NULL);
+      svn_hash_sets(revprops, SVN_PROP_REVISION_LOG, NULL);
+    }
+}
+
+apr_array_header_t *
+svn_compat_log_revprops_in(apr_pool_t *pool)
+{
+  apr_array_header_t *revprops = apr_array_make(pool, 3, sizeof(char *));
+
+  APR_ARRAY_PUSH(revprops, const char *) = SVN_PROP_REVISION_AUTHOR;
+  APR_ARRAY_PUSH(revprops, const char *) = SVN_PROP_REVISION_DATE;
+  APR_ARRAY_PUSH(revprops, const char *) = SVN_PROP_REVISION_LOG;
+
+  return revprops;
+}
+
+void
+svn_compat_log_revprops_out(const char **author, const char **date,
+                            const char **message, apr_hash_t *revprops)
+{
+  svn_string_t *author_s, *date_s,  *message_s;
+
+  *author = *date = *message = NULL;
+  if (revprops)
+    {
+      if ((author_s = svn_hash_gets(revprops, SVN_PROP_REVISION_AUTHOR)))
+        *author = author_s->data;
+      if ((date_s = svn_hash_gets(revprops, SVN_PROP_REVISION_DATE)))
+        *date = date_s->data;
+      if ((message_s = svn_hash_gets(revprops, SVN_PROP_REVISION_LOG)))
+        *message = message_s->data;
+    }
+}
+
+/* Baton for use with svn_compat_wrap_log_receiver */
+struct log_wrapper_baton {
+  void *baton;
+  svn_log_message_receiver_t receiver;
+};
+
+/* This implements svn_log_entry_receiver_t. */
+static svn_error_t *
+log_wrapper_callback(void *baton,
+                     svn_log_entry_t *log_entry,
+                     apr_pool_t *pool)
+{
+  struct log_wrapper_baton *lwb = baton;
+
+  if (lwb->receiver && SVN_IS_VALID_REVNUM(log_entry->revision))
+    {
+      const char *author, *date, *message;
+      svn_compat_log_revprops_out(&author, &date, &message,
+                                  log_entry->revprops);
+      return lwb->receiver(lwb->baton,
+                           log_entry->changed_paths2,
+                           log_entry->revision,
+                           author, date, message,
+                           pool);
+    }
+
+  return SVN_NO_ERROR;
+}
+
+void
+svn_compat_wrap_log_receiver(svn_log_entry_receiver_t *receiver2,
+                             void **receiver2_baton,
+                             svn_log_message_receiver_t receiver,
+                             void *receiver_baton,
+                             apr_pool_t *pool)
+{
+  struct log_wrapper_baton *lwb = apr_palloc(pool, sizeof(*lwb));
+
+  /* Set the user provided old format callback in the baton. */
+  lwb->baton = receiver_baton;
+  lwb->receiver = receiver;
+
+  *receiver2_baton = lwb;
+  *receiver2 = log_wrapper_callback;
+}