Mailing-List: contact commits-help@subversion.apache.org; run by ezmlm
Precedence: bulk
Reply-To: dev@subversion.apache.org
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Subject: svn commit: r1389662 [1/2] - in /subversion/branches/10Gb: ./
 tools/client-side/svn-bench/
Date: Tue, 25 Sep 2012 00:16:37 -0000
To: commits@subversion.apache.org
From: stefan2@apache.org
Message-Id: <20120925001637.BF30823888E3@eris.apache.org>

Author: stefan2
Date: Tue Sep 25 00:16:36 2012
New Revision: 1389662

URL: http://svn.apache.org/viewvc?rev=1389662&view=rev
Log:
On the 10Gb branch: Derive a benchmark client from our standard CL client.
Instead of actual I/O, only collect statistics.  In quiet mode, reduce
client-side processing to just handling the network communication (to
the degree possible).

Currently, only null-export, null-list and null-log are being provided.
Others can be added easily by copying from the respective command from
the standard client and adapting it to benchmarking needs.

* build.conf
  (svn-bench): new tool
  (libs): add tool reference

* tools/client-side/svn-bench
  new tool folder

* tools/client-side/svn-bench/cl.h
  copy of subversion/svn/cl.h; minimize it; adapt to null-* commands
* tools/client-side/svn-bench/util.c
  ditto
* tools/client-side/svn-bench/main.c
  ditto
* tools/client-side/svn-bench/notify.c
  ditto

* tools/client-side/svn-bench/help-cmd.c
  (svn_cl__help): adapt UI texts

* tools/client-side/svn-bench/null-export-cmd.c
  copy of subversion/svn/export-cmd.h; implement minimal editor that
  counts incoming data
* tools/client-side/svn-bench/null-list-cmd.c
  copy of subversion/svn/list-cmd.c; replace output with simple counters
* tools/client-side/svn-bench/null-log-cmd.c
  ditto

Added:
    subversion/branches/10Gb/tools/client-side/svn-bench/   (with props)
    subversion/branches/10Gb/tools/client-side/svn-bench/cl.h
    subversion/branches/10Gb/tools/client-side/svn-bench/client_errors.h
    subversion/branches/10Gb/tools/client-side/svn-bench/help-cmd.c
    subversion/branches/10Gb/tools/client-side/svn-bench/main.c
    subversion/branches/10Gb/tools/client-side/svn-bench/notify.c
    subversion/branches/10Gb/tools/client-side/svn-bench/null-export-cmd.c
    subversion/branches/10Gb/tools/client-side/svn-bench/null-list-cmd.c
    subversion/branches/10Gb/tools/client-side/svn-bench/null-log-cmd.c
    subversion/branches/10Gb/tools/client-side/svn-bench/util.c
Modified:
    subversion/branches/10Gb/build.conf

Modified: subversion/branches/10Gb/build.conf
URL: http://svn.apache.org/viewvc/subversion/branches/10Gb/build.conf?rev=1389662&r1=1389661&r2=1389662&view=diff
==============================================================================
--- subversion/branches/10Gb/build.conf (original)
+++ subversion/branches/10Gb/build.conf Tue Sep 25 00:16:36 2012
@@ -1180,7 +1180,7 @@ libs = __ALL__
        ra-local-test
        svndiff-test vdelta-test
        entries-dump atomic-ra-revprop-change wc-lock-tester wc-incomplete-tester
-       diff diff3 diff4 reorg-fsfs
+       diff diff3 diff4 reorg-fsfs svn-bench
        client-test
        conflict-data-test db-test pristine-store-test entries-compat-test
        op-depth-test dirent_uri-test wc-queries-test
@@ -1257,6 +1257,12 @@ sources = diff4.c
 install = tools
 libs = libsvn_diff libsvn_subr apriconv apr
 
+[svn-bench]
+type = exe
+path = tools/client-side/svn-bench
+install = tools
+libs = libsvn_client libsvn_wc libsvn_ra libsvn_subr apriconv apr
+
 [svnauthz-validate]
 description = Authz config file validator
 type = exe

Propchange: subversion/branches/10Gb/tools/client-side/svn-bench/
------------------------------------------------------------------------------
--- svn:ignore (added)
+++ svn:ignore Tue Sep 25 00:16:36 2012
@@ -0,0 +1,2 @@
+svn-bench
+svn.1

Added: subversion/branches/10Gb/tools/client-side/svn-bench/cl.h
URL: http://svn.apache.org/viewvc/subversion/branches/10Gb/tools/client-side/svn-bench/cl.h?rev=1389662&view=auto
==============================================================================
--- subversion/branches/10Gb/tools/client-side/svn-bench/cl.h (added)
+++ subversion/branches/10Gb/tools/client-side/svn-bench/cl.h Tue Sep 25 00:16:36 2012
@@ -0,0 +1,213 @@
+/*
+ * cl.h:  shared stuff in the command line program
+ *
+ * ====================================================================
+ *    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.
+ * ====================================================================
+ */
+
+/* ==================================================================== */
+
+
+

+#ifndef SVN_CL_H
+#define SVN_CL_H
+
+/*** Includes. ***/
+
+#include <apr_tables.h>
+
+#include "svn_client.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+

+/*** Command dispatch. ***/
+
+/* Hold results of option processing that are shared by multiple
+   commands. */
+typedef struct svn_cl__opt_state_t
+{
+  /* An array of svn_opt_revision_range_t *'s representing revisions
+     ranges indicated on the command-line via the -r and -c options.
+     For each range in the list, if only one revision was provided
+     (-rN), its 'end' member remains 'svn_opt_revision_unspecified'.
+     This array always has at least one element, even if that is a
+     null range in which both ends are 'svn_opt_revision_unspecified'. */
+  apr_array_header_t *revision_ranges;
+
+  /* These are simply a copy of the range start and end values present
+     in the first item of the revision_ranges list. */
+  svn_opt_revision_t start_revision;
+  svn_opt_revision_t end_revision;
+
+  /* Flag which is only set if the '-c' option was used. */
+  svn_boolean_t used_change_arg;
+
+  /* Flag which is only set if the '-r' option was used. */
+  svn_boolean_t used_revision_arg;
+
+  /* Max number of log messages to get back from svn_client_log2. */
+  int limit;
+
+  /* After option processing is done, reflects the switch actually
+     given on the command line, or svn_depth_unknown if none. */
+  svn_depth_t depth;
+
+  svn_boolean_t quiet;           /* sssh...avoid unnecessary output */
+  svn_boolean_t non_interactive; /* do no interactive prompting */
+  svn_boolean_t version;         /* print version information */
+  svn_boolean_t verbose;         /* be verbose */
+  svn_boolean_t strict;          /* do strictly what was requested */
+  const char *encoding;          /* the locale/encoding of the data*/
+  svn_boolean_t help;            /* print usage message */
+  const char *auth_username;     /* auth username */ /* UTF-8! */
+  const char *auth_password;     /* auth password */ /* UTF-8! */
+  const char *extensions;        /* subprocess extension args */ /* UTF-8! */
+  apr_array_header_t *targets;   /* target list from file */ /* UTF-8! */
+  svn_boolean_t no_auth_cache;   /* do not cache authentication information */
+  svn_boolean_t stop_on_copy;    /* don't cross copies during processing */
+  const char *config_dir;        /* over-riding configuration directory */
+  apr_array_header_t *config_options; /* over-riding configuration options */
+  svn_boolean_t all_revprops;    /* retrieve all revprops */
+  svn_boolean_t no_revprops;     /* retrieve no revprops */
+  apr_hash_t *revprop_table;     /* table of revision properties to get/set */
+  svn_boolean_t use_merge_history; /* use/display extra merge information */
+  svn_boolean_t trust_server_cert; /* trust server SSL certs that would
+                                      otherwise be rejected as "untrusted" */
+} svn_cl__opt_state_t;
+
+
+typedef struct svn_cl__cmd_baton_t
+{
+  svn_cl__opt_state_t *opt_state;
+  svn_client_ctx_t *ctx;
+} svn_cl__cmd_baton_t;
+
+
+/* Declare all the command procedures */
+svn_opt_subcommand_t
+  svn_cl__help,
+  svn_cl__null_export,
+  svn_cl__null_list,
+  svn_cl__null_log;
+
+
+/* See definition in main.c for documentation. */
+extern const svn_opt_subcommand_desc2_t svn_cl__cmd_table[];
+
+/* See definition in main.c for documentation. */
+extern const int svn_cl__global_options[];
+
+/* See definition in main.c for documentation. */
+extern const apr_getopt_option_t svn_cl__options[];
+
+

+/* A helper for the many subcommands that wish to merely warn when
+ * invoked on an unversioned, nonexistent, or otherwise innocuously
+ * errorful resource.  Meant to be wrapped with SVN_ERR().
+ *
+ * If ERR is null, return SVN_NO_ERROR.
+ *
+ * Else if ERR->apr_err is one of the error codes supplied in varargs,
+ * then handle ERR as a warning (unless QUIET is true), clear ERR, and
+ * return SVN_NO_ERROR, and push the value of ERR->apr_err into the
+ * ERRORS_SEEN array, if ERRORS_SEEN is not NULL.
+ *
+ * Else return ERR.
+ *
+ * Typically, error codes like SVN_ERR_UNVERSIONED_RESOURCE,
+ * SVN_ERR_ENTRY_NOT_FOUND, etc, are supplied in varargs.  Don't
+ * forget to terminate the argument list with SVN_NO_ERROR.
+ */
+svn_error_t *
+svn_cl__try(svn_error_t *err,
+            apr_array_header_t *errors_seen,
+            svn_boolean_t quiet,
+            ...);
+
+

+/* Our cancellation callback. */
+svn_error_t *
+svn_cl__check_cancel(void *baton);
+
+
+/* Print to stdout a hash that maps property names (char *) to property
+   values (svn_string_t *).  The names are assumed to be in UTF-8 format;
+   the values are either in UTF-8 (the special Subversion props) or
+   plain binary values.
+
+   If OUT is not NULL, then write to it rather than stdout.
+
+   If NAMES_ONLY is true, print just names, else print names and
+   values. */
+svn_error_t *
+svn_cl__print_prop_hash(svn_stream_t *out,
+                        apr_hash_t *prop_hash,
+                        svn_boolean_t names_only,
+                        apr_pool_t *pool);
+
+

+/*** Notification functions to display results on the terminal. */
+
+/* Set *NOTIFY_FUNC_P and *NOTIFY_BATON_P to a notifier/baton for all
+ * operations, allocated in POOL.
+ */
+svn_error_t *
+svn_cl__get_notifier(svn_wc_notify_func2_t *notify_func_p,
+                     void **notify_baton_p,
+                     apr_pool_t *pool);
+
+/* Make the notifier for use with BATON print the appropriate summary
+ * line at the end of the output.
+ */
+svn_error_t *
+svn_cl__notifier_mark_export(void *baton);
+
+/* Like svn_client_args_to_target_array() but, if the only error is that some
+ * arguments are reserved file names, then print warning messages for those
+ * targets, store the rest of the targets in TARGETS_P and return success. */
+svn_error_t *
+svn_cl__args_to_target_array_print_reserved(apr_array_header_t **targets_p,
+                                            apr_getopt_t *os,
+                                            const apr_array_header_t *known_targets,
+                                            svn_client_ctx_t *ctx,
+                                            svn_boolean_t keep_dest_origpath_on_truepath_collision,
+                                            apr_pool_t *pool);
+
+/* Return an error if TARGET is a URL; otherwise return SVN_NO_ERROR. */
+svn_error_t *
+svn_cl__check_target_is_local_path(const char *target);
+
+/* Return a copy of PATH, converted to the local path style, skipping
+ * PARENT_PATH if it is non-null and is a parent of or equal to PATH.
+ *
+ * This function assumes PARENT_PATH and PATH are both absolute "dirents"
+ * or both relative "dirents". */
+const char *
+svn_cl__local_style_skip_ancestor(const char *parent_path,
+                                  const char *path,
+                                  apr_pool_t *pool);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* SVN_CL_H */

Added: subversion/branches/10Gb/tools/client-side/svn-bench/client_errors.h
URL: http://svn.apache.org/viewvc/subversion/branches/10Gb/tools/client-side/svn-bench/client_errors.h?rev=1389662&view=auto
==============================================================================
--- subversion/branches/10Gb/tools/client-side/svn-bench/client_errors.h (added)
+++ subversion/branches/10Gb/tools/client-side/svn-bench/client_errors.h Tue Sep 25 00:16:36 2012
@@ -0,0 +1,95 @@
+/*
+ * client_errors.h:  error codes this command line client features
+ *
+ * ====================================================================
+ *    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.
+ * ====================================================================
+ */
+
+/* ==================================================================== */
+
+
+

+#ifndef SVN_CLIENT_ERRORS_H
+#define SVN_CLIENT_ERRORS_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+/*
+ * This error defining system is copied from and explained in
+ * ../../include/svn_error_codes.h
+ */
+
+/* Process this file if we're building an error array, or if we have
+   not defined the enumerated constants yet.  */
+#if defined(SVN_ERROR_BUILD_ARRAY) || !defined(SVN_CMDLINE_ERROR_ENUM_DEFINED)
+
+#if defined(SVN_ERROR_BUILD_ARRAY)
+
+#define SVN_ERROR_START \
+        static const err_defn error_table[] = { \
+          { SVN_ERR_CDMLINE__WARNING, "Warning" },
+#define SVN_ERRDEF(n, s) { n, s },
+#define SVN_ERROR_END { 0, NULL } };
+
+#elif !defined(SVN_CMDLINE_ERROR_ENUM_DEFINED)
+
+#define SVN_ERROR_START \
+        typedef enum svn_client_errno_t { \
+          SVN_ERR_CDMLINE__WARNING = SVN_ERR_LAST + 1,
+#define SVN_ERRDEF(n, s) n,
+#define SVN_ERROR_END SVN_ERR_CMDLINE__ERR_LAST } svn_client_errno_t;
+
+#define SVN_CMDLINE_ERROR_ENUM_DEFINED
+
+#endif
+
+/* Define custom command line client error numbers */
+
+SVN_ERROR_START
+
+  /* BEGIN Client errors */
+
+SVN_ERRDEF(SVN_ERR_CMDLINE__TMPFILE_WRITE,
+           "Failed writing to temporary file.")
+
+       SVN_ERRDEF(SVN_ERR_CMDLINE__TMPFILE_STAT,
+                  "Failed getting info about temporary file.")
+
+       SVN_ERRDEF(SVN_ERR_CMDLINE__TMPFILE_OPEN,
+                  "Failed opening temporary file.")
+
+  /* END Client errors */
+
+
+SVN_ERROR_END
+
+#undef SVN_ERROR_START
+#undef SVN_ERRDEF
+#undef SVN_ERROR_END
+
+#endif /* SVN_ERROR_BUILD_ARRAY || !SVN_CMDLINE_ERROR_ENUM_DEFINED */
+
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* SVN_CLIENT_ERRORS_H */

Added: subversion/branches/10Gb/tools/client-side/svn-bench/help-cmd.c
URL: http://svn.apache.org/viewvc/subversion/branches/10Gb/tools/client-side/svn-bench/help-cmd.c?rev=1389662&view=auto
==============================================================================
--- subversion/branches/10Gb/tools/client-side/svn-bench/help-cmd.c (added)
+++ subversion/branches/10Gb/tools/client-side/svn-bench/help-cmd.c Tue Sep 25 00:16:36 2012
@@ -0,0 +1,94 @@
+/*
+ * 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",   /* ### 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);
+}

Added: subversion/branches/10Gb/tools/client-side/svn-bench/main.c
URL: http://svn.apache.org/viewvc/subversion/branches/10Gb/tools/client-side/svn-bench/main.c?rev=1389662&view=auto
==============================================================================
--- subversion/branches/10Gb/tools/client-side/svn-bench/main.c (added)
+++ subversion/branches/10Gb/tools/client-side/svn-bench/main.c Tue Sep 25 00:16:36 2012
@@ -0,0 +1,952 @@
+/*
+ * main.c:  Subversion command line client.
+ *
+ * ====================================================================
+ *    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 <string.h>
+#include <assert.h>
+
+#include <apr_signal.h>
+
+#include "svn_cmdline.h"
+#include "svn_dirent_uri.h"
+#include "svn_pools.h"
+#include "svn_utf.h"
+#include "svn_version.h"
+
+#include "cl.h"
+
+#include "private/svn_opt_private.h"
+#include "private/svn_cmdline_private.h"
+
+#include "svn_private_config.h"
+
+

+/*** Option Processing ***/
+
+/* Add an identifier here for long options that don't have a short
+   option. Options that have both long and short options should just
+   use the short option letter as identifier.  */
+typedef enum svn_cl__longopt_t {
+  opt_auth_password = SVN_OPT_FIRST_LONGOPT_ID,
+  opt_auth_username,
+  opt_config_dir,
+  opt_config_options,
+  opt_depth,
+  opt_no_auth_cache,
+  opt_non_interactive,
+  opt_stop_on_copy,
+  opt_strict,
+  opt_targets,
+  opt_version,
+  opt_with_revprop,
+  opt_with_all_revprops,
+  opt_with_no_revprops,
+  opt_trust_server_cert,
+} svn_cl__longopt_t;
+
+
+/* Option codes and descriptions for the command line client.
+ *
+ * The entire list must be terminated with an entry of nulls.
+ */
+const apr_getopt_option_t svn_cl__options[] =
+{
+  {"help",          'h', 0, N_("show help on a subcommand")},
+  {NULL,            '?', 0, N_("show help on a subcommand")},
+  {"quiet",         'q', 0, N_("print nothing, or only summary information")},
+  {"recursive",     'R', 0, N_("descend recursively, same as --depth=infinity")},
+  {"non-recursive", 'N', 0, N_("obsolete; try --depth=files or --depth=immediates")},
+  {"change",        'c', 1,
+                    N_("the change made by revision ARG (like -r ARG-1:ARG)\n"
+                       "                             "
+                       "If ARG is negative this is like -r ARG:ARG-1\n"
+                       "                             "
+                       "If ARG is of the form ARG1-ARG2 then this is like\n"
+                       "                             "
+                       "ARG1:ARG2, where ARG1 is inclusive")},
+  {"revision",      'r', 1,
+                    N_("ARG (some commands also take ARG1:ARG2 range)\n"
+                       "                             "
+                       "A revision argument can be one of:\n"
+                       "                             "
+                       "   NUMBER       revision number\n"
+                       "                             "
+                       "   '{' DATE '}' revision at start of the date\n"
+                       "                             "
+                       "   'HEAD'       latest in repository\n"
+                       "                             "
+                       "   'BASE'       base rev of item's working copy\n"
+                       "                             "
+                       "   'COMMITTED'  last commit at or before BASE\n"
+                       "                             "
+                       "   'PREV'       revision just before COMMITTED")},
+  {"version",       opt_version, 0, N_("show program version information")},
+  {"verbose",       'v', 0, N_("print extra information")},
+  {"username",      opt_auth_username, 1, N_("specify a username ARG")},
+  {"password",      opt_auth_password, 1, N_("specify a password ARG")},
+  {"targets",       opt_targets, 1,
+                    N_("pass contents of file ARG as additional args")},
+  {"depth",         opt_depth, 1,
+                    N_("limit operation by depth ARG ('empty', 'files',\n"
+                       "                             "
+                       "'immediates', or 'infinity')")},
+  {"strict",        opt_strict, 0, N_("use strict semantics")},
+  {"stop-on-copy",  opt_stop_on_copy, 0,
+                    N_("do not cross copies while traversing history")},
+  {"no-auth-cache", opt_no_auth_cache, 0,
+                    N_("do not cache authentication tokens")},
+  {"trust-server-cert", opt_trust_server_cert, 0,
+                    N_("accept SSL server certificates from unknown\n"
+                       "                             "
+                       "certificate authorities without prompting (but only\n"
+                       "                             "
+                       "with '--non-interactive')") },
+  {"non-interactive", opt_non_interactive, 0,
+                    N_("do no interactive prompting")},
+  {"config-dir",    opt_config_dir, 1,
+                    N_("read user configuration files from directory ARG")},
+  {"config-option", opt_config_options, 1,
+                    N_("set user configuration option in the format:\n"
+                       "                             "
+                       "    FILE:SECTION:OPTION=[VALUE]\n"
+                       "                             "
+                       "For example:\n"
+                       "                             "
+                       "    servers:global:http-library=serf")},
+  {"limit",         'l', 1, N_("maximum number of log entries")},
+  {"with-all-revprops",  opt_with_all_revprops, 0,
+                    N_("retrieve all revision properties")},
+  {"with-no-revprops",  opt_with_no_revprops, 0,
+                    N_("retrieve no revision properties")},
+  {"with-revprop",  opt_with_revprop, 1,
+                    N_("set revision property ARG in new revision\n"
+                       "                             "
+                       "using the name[=value] format")},
+
+  /* Long-opt Aliases
+   *
+   * These have NULL desriptions, but an option code that matches some
+   * other option (whose description should probably mention its aliases).
+  */
+
+  {0,               0, 0, 0},
+};
+
+
+

+/*** Command dispatch. ***/
+
+/* Our array of available subcommands.
+ *
+ * The entire list must be terminated with an entry of nulls.
+ *
+ * In most of the help text "PATH" is used where a working copy path is
+ * required, "URL" where a repository URL is required and "TARGET" when
+ * either a path or a url can be used.  Hmm, should this be part of the
+ * help text?
+ */
+
+/* Options that apply to all commands.  (While not every command may
+   currently require authentication or be interactive, allowing every
+   command to take these arguments allows scripts to just pass them
+   willy-nilly to every invocation of 'svn') . */
+const int svn_cl__global_options[] =
+{ opt_auth_username, opt_auth_password, opt_no_auth_cache, opt_non_interactive,
+  opt_trust_server_cert, opt_config_dir, opt_config_options, 0
+};
+
+const svn_opt_subcommand_desc2_t svn_cl__cmd_table[] =
+{
+  { "help", svn_cl__help, {"?", "h"}, N_
+    ("Describe the usage of this program or its subcommands.\n"
+     "usage: help [SUBCOMMAND...]\n"),
+    {0} },
+  /* This command is also invoked if we see option "--help", "-h" or "-?". */
+
+  { "null-export", svn_cl__null_export, {0}, N_
+    ("Create an unversioned copy of a tree.\n"
+     "usage: null-export [-r REV] URL[@PEGREV]\n"
+     "\n"
+     "  Exports a clean directory tree from the repository specified by\n"
+     "  URL, at revision REV if it is given, otherwise at HEAD.\n"
+     "\n"
+     "  If specified, PEGREV determines in which revision the target is first\n"
+     "  looked up.\n"),
+    {'r', 'q', 'N', opt_depth} },
+
+  { "null-list", svn_cl__null_list, {"ls"}, N_
+    ("List directory entries in the repository.\n"
+     "usage: list [TARGET[@REV]...]\n"
+     "\n"
+     "  List each TARGET file and the contents of each TARGET directory as\n"
+     "  they exist in the repository.  If TARGET is a working copy path, the\n"
+     "  corresponding repository URL will be used. If specified, REV determines\n"
+     "  in which revision the target is first looked up.\n"
+     "\n"
+     "  The default TARGET is '.', meaning the repository URL of the current\n"
+     "  working directory.\n"
+     "\n"
+     "  With --verbose, the following fields will be fetched for each item:\n"
+     "\n"
+     "    Revision number of the last commit\n"
+     "    Author of the last commit\n"
+     "    If locked, the letter 'O'.  (Use 'svn info URL' to see details)\n"
+     "    Size (in bytes)\n"
+     "    Date and time of the last commit\n"),
+    {'r', 'v', 'R', opt_depth} },
+
+  { "null-log", svn_cl__null_log, {0}, N_
+    ("Fetch the log messages for a set of revision(s) and/or path(s).\n"
+     "usage: 1. null-log [PATH][@REV]\n"
+     "       2. null-log URL[@REV] [PATH...]\n"
+     "\n"
+     "  1. Fetch the log messages for the URL corresponding to PATH\n"
+     "     (default: '.'). If specified, REV is the revision in which the\n"
+     "     URL is first looked up, and the default revision range is REV:1.\n"
+     "     If REV is not specified, the default revision range is BASE:1,\n"
+     "     since the URL might not exist in the HEAD revision.\n"
+     "\n"
+     "  2. Fetch the log messages for the PATHs (default: '.') under URL.\n"
+     "     If specified, REV is the revision in which the URL is first\n"
+     "     looked up, and the default revision range is REV:1; otherwise,\n"
+     "     the URL is looked up in HEAD, and the default revision range is\n"
+     "     HEAD:1.\n"
+     "\n"
+     "  Multiple '-c' or '-r' options may be specified (but not a\n"
+     "  combination of '-c' and '-r' options), and mixing of forward and\n"
+     "  reverse ranges is allowed.\n"
+     "\n"
+     "  With -v, also print all affected paths with each log message.\n"
+     "  With -q, don't print the log message body itself (note that this is\n"
+     "  compatible with -v).\n"
+     "\n"
+     "  Each log message is printed just once, even if more than one of the\n"
+     "  affected paths for that revision were explicitly requested.  Logs\n"
+     "  follow copy history by default.  Use --stop-on-copy to disable this\n"
+     "  behavior, which can be useful for determining branchpoints.\n"),
+    {'r', 'q', 'v', 'g', 'c', opt_targets, opt_stop_on_copy, 
+     'l', opt_with_all_revprops, opt_with_no_revprops, opt_with_revprop,
+     'x',},
+    {{opt_with_revprop, N_("retrieve revision property ARG")},
+     {'c', N_("the change made in revision ARG")}} },
+
+  { NULL, NULL, {0}, NULL, {0} }
+};
+
+
+/* Version compatibility check */
+static svn_error_t *
+check_lib_versions(void)
+{
+  static const svn_version_checklist_t checklist[] =
+    {
+      { "svn_subr",   svn_subr_version },
+      { "svn_client", svn_client_version },
+      { "svn_wc",     svn_wc_version },
+      { "svn_ra",     svn_ra_version },
+      { "svn_delta",  svn_delta_version },
+      { "svn_diff",   svn_diff_version },
+      { NULL, NULL }
+    };
+  SVN_VERSION_DEFINE(my_version);
+
+  return svn_ver_check_list(&my_version, checklist);
+}
+
+
+/* A flag to see if we've been cancelled by the client or not. */
+static volatile sig_atomic_t cancelled = FALSE;
+
+/* A signal handler to support cancellation. */
+static void
+signal_handler(int signum)
+{
+  apr_signal(signum, SIG_IGN);
+  cancelled = TRUE;
+}
+
+/* Our cancellation callback. */
+svn_error_t *
+svn_cl__check_cancel(void *baton)
+{
+  if (cancelled)
+    return svn_error_create(SVN_ERR_CANCELLED, NULL, _("Caught signal"));
+  else
+    return SVN_NO_ERROR;
+}
+
+

+/*** Main. ***/
+
+/* Report and clear the error ERR, and return EXIT_FAILURE. */
+#define EXIT_ERROR(err)                                                 \
+  svn_cmdline_handle_exit_error(err, NULL, "svn: ")
+
+/* A redefinition of the public SVN_INT_ERR macro, that suppresses the
+ * error message if it is SVN_ERR_IO_PIPE_WRITE_ERROR. */
+#undef SVN_INT_ERR
+#define SVN_INT_ERR(expr)                                        \
+  do {                                                           \
+    svn_error_t *svn_err__temp = (expr);                         \
+    if (svn_err__temp)                                           \
+      return EXIT_ERROR(svn_err__temp);                          \
+  } while (0)
+
+static int
+sub_main(int argc, const char *argv[], apr_pool_t *pool)
+{
+  svn_error_t *err;
+  int opt_id;
+  apr_getopt_t *os;
+  svn_cl__opt_state_t opt_state = { 0, { 0 } };
+  svn_client_ctx_t *ctx;
+  apr_array_header_t *received_opts;
+  int i;
+  const svn_opt_subcommand_desc2_t *subcommand = NULL;
+  const char *dash_m_arg = NULL, *dash_F_arg = NULL;
+  svn_cl__cmd_baton_t command_baton;
+  svn_auth_baton_t *ab;
+  svn_config_t *cfg_config;
+  svn_boolean_t descend = TRUE;
+  svn_boolean_t use_notifier = TRUE;
+
+  received_opts = apr_array_make(pool, SVN_OPT_MAX_OPTIONS, sizeof(int));
+
+  /* Check library versions */
+  SVN_INT_ERR(check_lib_versions());
+
+#if defined(WIN32) || defined(__CYGWIN__)
+  /* Set the working copy administrative directory name. */
+  if (getenv("SVN_ASP_DOT_NET_HACK"))
+    {
+      SVN_INT_ERR(svn_wc_set_adm_dir("_svn", pool));
+    }
+#endif
+
+  /* Initialize the RA library. */
+  SVN_INT_ERR(svn_ra_initialize(pool));
+
+  /* Begin processing arguments. */
+  opt_state.start_revision.kind = svn_opt_revision_unspecified;
+  opt_state.end_revision.kind = svn_opt_revision_unspecified;
+  opt_state.revision_ranges =
+    apr_array_make(pool, 0, sizeof(svn_opt_revision_range_t *));
+  opt_state.depth = svn_depth_unknown;
+
+  /* No args?  Show usage. */
+  if (argc <= 1)
+    {
+      svn_cl__help(NULL, NULL, pool);
+      return EXIT_FAILURE;
+    }
+
+  /* Else, parse options. */
+  SVN_INT_ERR(svn_cmdline__getopt_init(&os, argc, argv, pool));
+
+  os->interleave = 1;
+  while (1)
+    {
+      const char *opt_arg;
+      const char *utf8_opt_arg;
+
+      /* Parse the next option. */
+      apr_status_t apr_err = apr_getopt_long(os, svn_cl__options, &opt_id,
+                                             &opt_arg);
+      if (APR_STATUS_IS_EOF(apr_err))
+        break;
+      else if (apr_err)
+        {
+          svn_cl__help(NULL, NULL, pool);
+          return EXIT_FAILURE;
+        }
+
+      /* Stash the option code in an array before parsing it. */
+      APR_ARRAY_PUSH(received_opts, int) = opt_id;
+
+      switch (opt_id) {
+      case 'l':
+        {
+          err = svn_cstring_atoi(&opt_state.limit, opt_arg);
+          if (err)
+            {
+              err = svn_error_create(SVN_ERR_CL_ARG_PARSING_ERROR, err,
+                                     _("Non-numeric limit argument given"));
+              return EXIT_ERROR(err);
+            }
+          if (opt_state.limit <= 0)
+            {
+              err = svn_error_create(SVN_ERR_INCORRECT_PARAMS, NULL,
+                                    _("Argument to --limit must be positive"));
+              return EXIT_ERROR(err);
+            }
+        }
+        break;
+      case 'c':
+        {
+          apr_array_header_t *change_revs =
+            svn_cstring_split(opt_arg, ", \n\r\t\v", TRUE, pool);
+
+          for (i = 0; i < change_revs->nelts; i++)
+            {
+              char *end;
+              svn_revnum_t changeno, changeno_end;
+              const char *change_str =
+                APR_ARRAY_IDX(change_revs, i, const char *);
+              const char *s = change_str;
+              svn_boolean_t is_negative;
+
+              /* Check for a leading minus to allow "-c -r42".
+               * The is_negative flag is used to handle "-c -42" and "-c -r42".
+               * The "-c r-42" case is handled by strtol() returning a
+               * negative number. */
+              is_negative = (*s == '-');
+              if (is_negative)
+                s++;
+
+              /* Allow any number of 'r's to prefix a revision number. */
+              while (*s == 'r')
+                s++;
+              changeno = changeno_end = strtol(s, &end, 10);
+              if (end != s && *end == '-')
+                {
+                  if (changeno < 0 || is_negative)
+                    {
+                      err = svn_error_createf(SVN_ERR_CL_ARG_PARSING_ERROR,
+                                              NULL,
+                                              _("Negative number in range (%s)"
+                                                " not supported with -c"),
+                                              change_str);
+                      return EXIT_ERROR(err);
+                    }
+                  s = end + 1;
+                  while (*s == 'r')
+                    s++;
+                  changeno_end = strtol(s, &end, 10);
+                }
+              if (end == change_str || *end != '\0')
+                {
+                  err = svn_error_createf(SVN_ERR_CL_ARG_PARSING_ERROR, NULL,
+                                          _("Non-numeric change argument (%s) "
+                                            "given to -c"), change_str);
+                  return EXIT_ERROR(err);
+                }
+
+              if (changeno == 0)
+                {
+                  err = svn_error_create(SVN_ERR_CL_ARG_PARSING_ERROR, NULL,
+                                         _("There is no change 0"));
+                  return EXIT_ERROR(err);
+                }
+
+              if (is_negative)
+                changeno = -changeno;
+
+              /* Figure out the range:
+                    -c N  -> -r N-1:N
+                    -c -N -> -r N:N-1
+                    -c M-N -> -r M-1:N for M < N
+                    -c M-N -> -r M:N-1 for M > N
+                    -c -M-N -> error (too confusing/no valid use case)
+              */
+              if (changeno > 0)
+                {
+                  if (changeno <= changeno_end)
+                    changeno--;
+                  else
+                    changeno_end--;
+                }
+              else
+                {
+                  changeno = -changeno;
+                  changeno_end = changeno - 1;
+                }
+
+              opt_state.used_change_arg = TRUE;
+              APR_ARRAY_PUSH(opt_state.revision_ranges,
+                             svn_opt_revision_range_t *)
+                = svn_opt__revision_range_from_revnums(changeno, changeno_end,
+                                                       pool);
+            }
+        }
+        break;
+      case 'r':
+        opt_state.used_revision_arg = TRUE;
+        if (svn_opt_parse_revision_to_range(opt_state.revision_ranges,
+                                            opt_arg, pool) != 0)
+          {
+            SVN_INT_ERR(svn_utf_cstring_to_utf8(&utf8_opt_arg, opt_arg, pool));
+            err = svn_error_createf
+                (SVN_ERR_CL_ARG_PARSING_ERROR, NULL,
+                 _("Syntax error in revision argument '%s'"),
+                 utf8_opt_arg);
+            return EXIT_ERROR(err);
+          }
+        break;
+      case 'v':
+        opt_state.verbose = TRUE;
+        break;
+      case 'h':
+      case '?':
+        opt_state.help = TRUE;
+        break;
+      case 'q':
+        opt_state.quiet = TRUE;
+        break;
+      case opt_targets:
+        {
+          svn_stringbuf_t *buffer, *buffer_utf8;
+
+          /* We need to convert to UTF-8 now, even before we divide
+             the targets into an array, because otherwise we wouldn't
+             know what delimiter to use for svn_cstring_split().  */
+
+          SVN_INT_ERR(svn_utf_cstring_to_utf8(&utf8_opt_arg, opt_arg, pool));
+          SVN_INT_ERR(svn_stringbuf_from_file2(&buffer, utf8_opt_arg, pool));
+          SVN_INT_ERR(svn_utf_stringbuf_to_utf8(&buffer_utf8, buffer, pool));
+          opt_state.targets = svn_cstring_split(buffer_utf8->data, "\n\r",
+                                                TRUE, pool);
+        }
+        break;
+      case 'N':
+        descend = FALSE;
+        break;
+      case opt_depth:
+        err = svn_utf_cstring_to_utf8(&utf8_opt_arg, opt_arg, pool);
+        if (err)
+          return EXIT_ERROR
+            (svn_error_createf(SVN_ERR_CL_ARG_PARSING_ERROR, err,
+                               _("Error converting depth "
+                                 "from locale to UTF-8")));
+        opt_state.depth = svn_depth_from_word(utf8_opt_arg);
+        if (opt_state.depth == svn_depth_unknown
+            || opt_state.depth == svn_depth_exclude)
+          {
+            return EXIT_ERROR
+              (svn_error_createf(SVN_ERR_CL_ARG_PARSING_ERROR, NULL,
+                                 _("'%s' is not a valid depth; try "
+                                   "'empty', 'files', 'immediates', "
+                                   "or 'infinity'"),
+                                 utf8_opt_arg));
+          }
+        break;
+      case opt_version:
+        opt_state.version = TRUE;
+        break;
+      case opt_auth_username:
+        SVN_INT_ERR(svn_utf_cstring_to_utf8(&opt_state.auth_username,
+                                            opt_arg, pool));
+        break;
+      case opt_auth_password:
+        SVN_INT_ERR(svn_utf_cstring_to_utf8(&opt_state.auth_password,
+                                            opt_arg, pool));
+        break;
+      case opt_stop_on_copy:
+        opt_state.stop_on_copy = TRUE;
+        break;
+      case opt_strict:
+        opt_state.strict = TRUE;
+        break;
+      case opt_no_auth_cache:
+        opt_state.no_auth_cache = TRUE;
+        break;
+      case opt_non_interactive:
+        opt_state.non_interactive = TRUE;
+        break;
+      case opt_trust_server_cert:
+        opt_state.trust_server_cert = TRUE;
+        break;
+      case 'x':
+        SVN_INT_ERR(svn_utf_cstring_to_utf8(&opt_state.extensions,
+                                            opt_arg, pool));
+        break;
+      case opt_config_dir:
+        {
+          const char *path_utf8;
+          SVN_INT_ERR(svn_utf_cstring_to_utf8(&path_utf8, opt_arg, pool));
+          opt_state.config_dir = svn_dirent_internal_style(path_utf8, pool);
+        }
+        break;
+      case opt_config_options:
+        if (!opt_state.config_options)
+          opt_state.config_options =
+                   apr_array_make(pool, 1,
+                                  sizeof(svn_cmdline__config_argument_t*));
+
+        SVN_INT_ERR(svn_utf_cstring_to_utf8(&opt_arg, opt_arg, pool));
+        SVN_INT_ERR(svn_cmdline__parse_config_option(opt_state.config_options,
+                                                     opt_arg, pool));
+        break;
+      case opt_with_all_revprops:
+        /* If --with-all-revprops is specified along with one or more
+         * --with-revprops options, --with-all-revprops takes precedence. */
+        opt_state.all_revprops = TRUE;
+        break;
+      case opt_with_no_revprops:
+        opt_state.no_revprops = TRUE;
+        break;
+      case opt_with_revprop:
+        SVN_INT_ERR(svn_opt_parse_revprop(&opt_state.revprop_table,
+                                          opt_arg, pool));
+        break;
+      case 'g':
+        opt_state.use_merge_history = TRUE;
+        break;
+      default:
+        /* Hmmm. Perhaps this would be a good place to squirrel away
+           opts that commands like svn diff might need. Hmmm indeed. */
+        break;
+      }
+    }
+
+  /* ### This really belongs in libsvn_client.  The trouble is,
+     there's no one place there to run it from, no
+     svn_client_init().  We'd have to add it to all the public
+     functions that a client might call.  It's unmaintainable to do
+     initialization from within libsvn_client itself, but it seems
+     burdensome to demand that all clients call svn_client_init()
+     before calling any other libsvn_client function... On the other
+     hand, the alternative is effectively to demand that they call
+     svn_config_ensure() instead, so maybe we should have a generic
+     init function anyway.  Thoughts?  */
+  SVN_INT_ERR(svn_config_ensure(opt_state.config_dir, pool));
+
+  /* If the user asked for help, then the rest of the arguments are
+     the names of subcommands to get help on (if any), or else they're
+     just typos/mistakes.  Whatever the case, the subcommand to
+     actually run is svn_cl__help(). */
+  if (opt_state.help)
+    subcommand = svn_opt_get_canonical_subcommand2(svn_cl__cmd_table, "help");
+
+  /* If we're not running the `help' subcommand, then look for a
+     subcommand in the first argument. */
+  if (subcommand == NULL)
+    {
+      if (os->ind >= os->argc)
+        {
+          if (opt_state.version)
+            {
+              /* Use the "help" subcommand to handle the "--version" option. */
+              static const svn_opt_subcommand_desc2_t pseudo_cmd =
+                { "--version", svn_cl__help, {0}, "",
+                  {opt_version,    /* must accept its own option */
+                   'q',            /* brief output */
+                   'v',            /* verbose output */
+                   opt_config_dir  /* all commands accept this */
+                  } };
+
+              subcommand = &pseudo_cmd;
+            }
+          else
+            {
+              svn_error_clear
+                (svn_cmdline_fprintf(stderr, pool,
+                                     _("Subcommand argument required\n")));
+              svn_cl__help(NULL, NULL, pool);
+              return EXIT_FAILURE;
+            }
+        }
+      else
+        {
+          const char *first_arg = os->argv[os->ind++];
+          subcommand = svn_opt_get_canonical_subcommand2(svn_cl__cmd_table,
+                                                         first_arg);
+          if (subcommand == NULL)
+            {
+              const char *first_arg_utf8;
+              SVN_INT_ERR(svn_utf_cstring_to_utf8(&first_arg_utf8,
+                                                  first_arg, pool));
+              svn_error_clear
+                (svn_cmdline_fprintf(stderr, pool,
+                                     _("Unknown command: '%s'\n"),
+                                     first_arg_utf8));
+              svn_cl__help(NULL, NULL, pool);
+              return EXIT_FAILURE;
+            }
+        }
+    }
+
+  /* Check that the subcommand wasn't passed any inappropriate options. */
+  for (i = 0; i < received_opts->nelts; i++)
+    {
+      opt_id = APR_ARRAY_IDX(received_opts, i, int);
+
+      /* All commands implicitly accept --help, so just skip over this
+         when we see it. Note that we don't want to include this option
+         in their "accepted options" list because it would be awfully
+         redundant to display it in every commands' help text. */
+      if (opt_id == 'h' || opt_id == '?')
+        continue;
+
+      if (! svn_opt_subcommand_takes_option3(subcommand, opt_id,
+                                             svn_cl__global_options))
+        {
+          const char *optstr;
+          const apr_getopt_option_t *badopt =
+            svn_opt_get_option_from_code2(opt_id, svn_cl__options,
+                                          subcommand, pool);
+          svn_opt_format_option(&optstr, badopt, FALSE, pool);
+          if (subcommand->name[0] == '-')
+            svn_cl__help(NULL, NULL, pool);
+          else
+            svn_error_clear
+              (svn_cmdline_fprintf
+               (stderr, pool, _("Subcommand '%s' doesn't accept option '%s'\n"
+                                "Type 'svn-bench help %s' for usage.\n"),
+                subcommand->name, optstr, subcommand->name));
+          return EXIT_FAILURE;
+        }
+    }
+
+  /* Only merge and log support multiple revisions/revision ranges. */
+  if (subcommand->cmd_func != svn_cl__null_log)
+    {
+      if (opt_state.revision_ranges->nelts > 1)
+        {
+          err = svn_error_create(SVN_ERR_CL_ARG_PARSING_ERROR, NULL,
+                                 _("Multiple revision arguments "
+                                   "encountered; can't specify -c twice, "
+                                   "or both -c and -r"));
+          return EXIT_ERROR(err);
+        }
+    }
+
+  /* Disallow simultaneous use of both --with-all-revprops and
+     --with-no-revprops.  */
+  if (opt_state.all_revprops && opt_state.no_revprops)
+    {
+      err = svn_error_create(SVN_ERR_CL_ARG_PARSING_ERROR, NULL,
+                             _("--with-all-revprops and --with-no-revprops "
+                               "are mutually exclusive"));
+      return EXIT_ERROR(err);
+    }
+
+  /* Disallow simultaneous use of both --with-revprop and
+     --with-no-revprops.  */
+  if (opt_state.revprop_table && opt_state.no_revprops)
+    {
+      err = svn_error_create(SVN_ERR_CL_ARG_PARSING_ERROR, NULL,
+                             _("--with-revprop and --with-no-revprops "
+                               "are mutually exclusive"));
+      return EXIT_ERROR(err);
+    }
+
+  /* --trust-server-cert can only be used with --non-interactive */
+  if (opt_state.trust_server_cert && !opt_state.non_interactive)
+    {
+      err = svn_error_create(SVN_ERR_CL_ARG_PARSING_ERROR, NULL,
+                             _("--trust-server-cert requires "
+                               "--non-interactive"));
+      return EXIT_ERROR(err);
+    }
+
+  /* Ensure that 'revision_ranges' has at least one item, and make
+     'start_revision' and 'end_revision' match that item. */
+  if (opt_state.revision_ranges->nelts == 0)
+    {
+      svn_opt_revision_range_t *range = apr_palloc(pool, sizeof(*range));
+      range->start.kind = svn_opt_revision_unspecified;
+      range->end.kind = svn_opt_revision_unspecified;
+      APR_ARRAY_PUSH(opt_state.revision_ranges,
+                     svn_opt_revision_range_t *) = range;
+    }
+  opt_state.start_revision = APR_ARRAY_IDX(opt_state.revision_ranges, 0,
+                                           svn_opt_revision_range_t *)->start;
+  opt_state.end_revision = APR_ARRAY_IDX(opt_state.revision_ranges, 0,
+                                         svn_opt_revision_range_t *)->end;
+
+  /* Create a client context object. */
+  command_baton.opt_state = &opt_state;
+  SVN_INT_ERR(svn_client_create_context(&ctx, pool));
+  command_baton.ctx = ctx;
+
+  /* Only a few commands can accept a revision range; the rest can take at
+     most one revision number. */
+  if (subcommand->cmd_func != svn_cl__null_log)
+    {
+      if (opt_state.end_revision.kind != svn_opt_revision_unspecified)
+        {
+          err = svn_error_create(SVN_ERR_CLIENT_REVISION_RANGE, NULL, NULL);
+          return EXIT_ERROR(err);
+        }
+    }
+
+  /* -N has a different meaning depending on the command */
+  if (descend == FALSE)
+    opt_state.depth = svn_depth_files;
+
+  err = svn_config_get_config(&(ctx->config),
+                              opt_state.config_dir, pool);
+  if (err)
+    {
+      /* Fallback to default config if the config directory isn't readable
+         or is not a directory. */
+      if (APR_STATUS_IS_EACCES(err->apr_err)
+          || SVN__APR_STATUS_IS_ENOTDIR(err->apr_err))
+        {
+          svn_handle_warning2(stderr, err, "svn: ");
+          svn_error_clear(err);
+        }
+      else
+        return EXIT_ERROR(err);
+    }
+
+  cfg_config = apr_hash_get(ctx->config, SVN_CONFIG_CATEGORY_CONFIG,
+                            APR_HASH_KEY_STRING);
+
+  /* Update the options in the config */
+  if (opt_state.config_options)
+    {
+      svn_error_clear(
+          svn_cmdline__apply_config_options(ctx->config,
+                                            opt_state.config_options,
+                                            "svn: ", "--config-option"));
+    }
+
+  /* Set up the notifier.
+
+     In general, we use it any time we aren't in --quiet mode.  'svn
+     status' is unique, though, in that we don't want it in --quiet mode
+     unless we're also in --verbose mode.  When in --xml mode,
+     though, we never want it.  */
+  if (opt_state.quiet)
+    use_notifier = FALSE;
+  if (use_notifier)
+    {
+      SVN_INT_ERR(svn_cl__get_notifier(&ctx->notify_func2, &ctx->notify_baton2,
+                                       pool));
+    }
+
+  /* Set up our cancellation support. */
+  ctx->cancel_func = svn_cl__check_cancel;
+  apr_signal(SIGINT, signal_handler);
+#ifdef SIGBREAK
+  /* SIGBREAK is a Win32 specific signal generated by ctrl-break. */
+  apr_signal(SIGBREAK, signal_handler);
+#endif
+#ifdef SIGHUP
+  apr_signal(SIGHUP, signal_handler);
+#endif
+#ifdef SIGTERM
+  apr_signal(SIGTERM, signal_handler);
+#endif
+
+#ifdef SIGPIPE
+  /* Disable SIGPIPE generation for the platforms that have it. */
+  apr_signal(SIGPIPE, SIG_IGN);
+#endif
+
+#ifdef SIGXFSZ
+  /* Disable SIGXFSZ generation for the platforms that have it, otherwise
+   * working with large files when compiled against an APR that doesn't have
+   * large file support will crash the program, which is uncool. */
+  apr_signal(SIGXFSZ, SIG_IGN);
+#endif
+
+  /* Set up Authentication stuff. */
+  SVN_INT_ERR(svn_cmdline_create_auth_baton(&ab,
+                                            opt_state.non_interactive,
+                                            opt_state.auth_username,
+                                            opt_state.auth_password,
+                                            opt_state.config_dir,
+                                            opt_state.no_auth_cache,
+                                            opt_state.trust_server_cert,
+                                            cfg_config,
+                                            ctx->cancel_func,
+                                            ctx->cancel_baton,
+                                            pool));
+
+  ctx->auth_baton = ab;
+
+  /* The new svn behavior is to postpone everything until after the operation
+     completed */
+  ctx->conflict_func = NULL;
+  ctx->conflict_baton = NULL;
+  ctx->conflict_func2 = NULL;
+  ctx->conflict_baton2 = NULL;
+
+  /* And now we finally run the subcommand. */
+  err = (*subcommand->cmd_func)(os, &command_baton, pool);
+  if (err)
+    {
+      /* For argument-related problems, suggest using the 'help'
+         subcommand. */
+      if (err->apr_err == SVN_ERR_CL_INSUFFICIENT_ARGS
+          || err->apr_err == SVN_ERR_CL_ARG_PARSING_ERROR)
+        {
+          err = svn_error_quick_wrap(
+                  err, apr_psprintf(pool,
+                                    _("Try 'svn-bench help %s' for more information"),
+                                    subcommand->name));
+        }
+      if (err->apr_err == SVN_ERR_WC_UPGRADE_REQUIRED)
+        {
+          err = svn_error_quick_wrap(err,
+                                     _("Please see the 'svn upgrade' command"));
+        }
+
+      /* Tell the user about 'svn cleanup' if any error on the stack
+         was about locked working copies. */
+      if (svn_error_find_cause(err, SVN_ERR_WC_LOCKED))
+        {
+          err = svn_error_quick_wrap(
+                  err, _("Run 'svn cleanup' to remove locks "
+                         "(type 'svn help cleanup' for details)"));
+        }
+
+      return EXIT_ERROR(err);
+    }
+  else
+    {
+      /* Ensure that stdout is flushed, so the user will see any write errors.
+         This makes sure that output is not silently lost. */
+      SVN_INT_ERR(svn_cmdline_fflush(stdout));
+
+      return EXIT_SUCCESS;
+    }
+}
+
+int
+main(int argc, const char *argv[])
+{
+  apr_pool_t *pool;
+  int exit_code;
+
+  /* Initialize the app. */
+  if (svn_cmdline_init("svn", stderr) != EXIT_SUCCESS)
+    return EXIT_FAILURE;
+
+  /* Create our top-level pool.  Use a separate mutexless allocator,
+   * given this application is single threaded.
+   */
+  pool = apr_allocator_owner_get(svn_pool_create_allocator(FALSE));
+
+  exit_code = sub_main(argc, argv, pool);
+
+  svn_pool_destroy(pool);
+  return exit_code;
+}