Author: rinrab
Date: Wed Apr 1 16:52:16 2026
New Revision: 1932705
Log:
svnbrowse: Create new blank program to implement a TUI browser for repository
directories. i.e. interactive interface for 'svn ls'.
The program itself is an empty application with some boilerplate copied from
other command-line tools. Also perform ncurses initialization, and test that
everything works great; No real functionality is implemented yet.
* CMakeLists.txt
(SVN_ENABLE_TUI): New option.
(ncurses): Look for the library.
(configsummary): Log state of SVN_ENABLE_TUI.
* build.conf
(svnbrowse): Declare target.
* build/generator/gen_cmake.py
(get_target_conditions): Add special handling for svnbrowse target so it is
enabled only if TUIs are ON.
* subversion/svnbrowse/svnbrowse.c: New file.
(ui_draw): This function will be rendering everything to the screen.
(sub_main): New function, a wrapper around main() with pools and svn-errors.
(main): New main.
Please follow the discussion on [email protected]. for more info.
[1] https://lists.apache.org/thread/knc20xgb6h56jl0tvxbywhgt5yvh90vg
Added:
subversion/trunk/subversion/svnbrowse/
subversion/trunk/subversion/svnbrowse/svnbrowse.c (contents, props changed)
Modified:
subversion/trunk/CMakeLists.txt
subversion/trunk/build.conf
subversion/trunk/build/generator/gen_cmake.py
Modified: subversion/trunk/CMakeLists.txt
==============================================================================
--- subversion/trunk/CMakeLists.txt Wed Apr 1 16:20:29 2026 (r1932704)
+++ subversion/trunk/CMakeLists.txt Wed Apr 1 16:52:16 2026 (r1932705)
@@ -88,6 +88,7 @@ option(SVN_ENABLE_FS_FS "Enable Subversi
option(SVN_ENABLE_FS_X "Enable Subversion FSX Repository Filesystem Library" ON)
option(SVN_ENABLE_FS_BASE "Enable Subversion Filesystem Base Library (NOT IMPLEMENTED and DEPRECATED)" OFF)
option(SVN_ENABLE_NLS "Enable gettext functionality" OFF)
+option(SVN_ENABLE_TUI "Enable TUI applications (requires ncurses)" OFF)
option(SVN_ENABLE_AUTH_KWALLET "Enable KWallet auth library" OFF)
option(SVN_ENABLE_AUTH_GNOME_KEYRING "Enable GNOME Keyring for auth credentials" OFF)
cmake_dependent_option(SVN_ENABLE_AUTH_GPG_AGENT "Enable GPG Agent support" OFF "WIN32" ON)
@@ -483,6 +484,17 @@ if(SVN_ENABLE_AUTH_GNOME_KEYRING)
)
endif()
+if (SVN_ENABLE_TUI)
+ add_library(external-ncurses INTERFACE)
+
+ if(SVN_USE_PKG_CONFIG)
+ pkg_check_modules(ncurses REQUIRED IMPORTED_TARGET ncurses)
+ target_link_libraries(external-ncurses INTERFACE PkgConfig::ncurses)
+ else()
+ message(ERROR "not supported")
+ endif()
+endif()
+
if(SVN_ENABLE_SWIG_PERL OR SVN_ENABLE_SWIG_PYTHON OR SVN_ENABLE_SWIG_RUBY)
find_package(SWIG REQUIRED)
include(${SWIG_USE_FILE})
@@ -996,6 +1008,7 @@ message(STATUS " Build type ...........
message(STATUS " Build shared libraries ........ : ${BUILD_SHARED_LIBS}")
message(STATUS " Build shared FS Modues ........ : ${SVN_BUILD_SHARED_FS}")
message(STATUS " Build shared RA Modues ........ : ${SVN_BUILD_SHARED_RA}")
+message(STATUS " Build TUI applications ........ : ${SVN_ENABLE_TUI}")
message(STATUS " Use pkg-config dependencies ... : ${SVN_USE_PKG_CONFIG}")
message(STATUS " Checksum Backend .............. : ${SVN_CHECKSUM_BACKEND}")
message(STATUS " FS modules:")
Modified: subversion/trunk/build.conf
==============================================================================
--- subversion/trunk/build.conf Wed Apr 1 16:20:29 2026 (r1932704)
+++ subversion/trunk/build.conf Wed Apr 1 16:52:16 2026 (r1932705)
@@ -222,6 +222,12 @@ libs = libsvn_client libsvn_ra libsvn_su
install = bin
manpages = subversion/svnmucc/svnmucc.1
+[svnbrowse]
+type = exe
+path = subversion/svnbrowse
+libs = libsvn_client libsvn_ra libsvn_subr libsvn_delta ncurses
+install = bin
+
# Support for GNOME Keyring
[libsvn_auth_gnome_keyring]
description = Subversion GNOME Keyring Library
@@ -1505,6 +1511,10 @@ external-lib = $(SVN_SASL_LIBS)
type = lib
external-lib = $(SVN_OPENSSL_LIBS) $(SVN_LIBCRYPTO_LIBS)
+[ncurses]
+type = lib
+external-lib = $(SVN_NCURSES_LIBS)
+
[checksum-libs]
type = lib
external-lib = $(SVN_CHECKSUM_LIBS)
Modified: subversion/trunk/build/generator/gen_cmake.py
==============================================================================
--- subversion/trunk/build/generator/gen_cmake.py Wed Apr 1 16:20:29 2026 (r1932704)
+++ subversion/trunk/build/generator/gen_cmake.py Wed Apr 1 16:52:16 2026 (r1932705)
@@ -79,6 +79,8 @@ def get_target_conditions(target):
enable_condition.append("SVN_ENABLE_AUTH_KWALLET")
elif target.name == "libsvn_auth_gnome_keyring":
enable_condition.append("SVN_ENABLE_AUTH_GNOME_KEYRING")
+ elif target.name == "svnbrowse":
+ enable_condition.append("SVN_ENABLE_TUI")
if isinstance(target, gen_base.TargetExe):
if target.install == "test" or target.install == "sub-test":
Added: subversion/trunk/subversion/svnbrowse/svnbrowse.c
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ subversion/trunk/subversion/svnbrowse/svnbrowse.c Wed Apr 1 16:52:16 2026 (r1932705)
@@ -0,0 +1,108 @@
+/*
+ * svnbrowse.c: TUI (terminal user interface) client for browsing and
+ * exploring remote Subversion targets.
+ *
+ * ====================================================================
+ * 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.h>
+
+#include "svn_pools.h"
+#include "svn_cmdline.h"
+#include "svn_error.h"
+
+#include <ncurses.h>
+
+/* Control+ASCII character are represented as values 1-26 according to their
+ * alphabetical order. */
+#define CTRL(ch) (ch - 'a' + 1)
+
+static void
+ui_draw(apr_pool_t *pool)
+{
+ mvprintw(0, 4, "svnbrowse: work in progress");
+}
+
+static svn_error_t *
+sub_main(int *code, int argc, char *argv[], apr_pool_t *pool)
+{
+ /* init the display */
+ initscr();
+
+ /* put ncurses into keypad mode to handle arrow inputs */
+ intrflush(stdscr, FALSE);
+ keypad(stdscr, TRUE);
+ nonl();
+
+ while (TRUE)
+ {
+ int ch;
+
+ clear();
+ ui_draw(pool);
+ refresh();
+
+ ch = getch();
+
+ /* getch() reads the next character/key with the following additional
+ * rules:
+ * 1. as we configured it to use keypad(), arrows and other special keys
+ * are handled as KEY_XXX.
+ * 2. Control (CTRL) version are handled as literal 1-26 values of ch where
+ * 1 is <C-A> and 26 is <C-Z>.
+ * 3. The rest of keys remain as their equivalents on the current layout.
+ * 4. If shift is held, they just become uppercased.
+ */
+
+ /* TODO: quit via escape. some say just check for 27, but it I think it's
+ * a bit ugly. */
+ if (ch == 'q')
+ {
+ break;
+ }
+ }
+
+ endwin();
+
+ return SVN_NO_ERROR;
+}
+
+int main(int argc, char *argv[])
+{
+ apr_pool_t *pool;
+ int exit_code = EXIT_SUCCESS;
+ svn_error_t *err;
+
+ if (svn_cmdline_init("svnbrowse", stderr) != EXIT_SUCCESS)
+ return EXIT_FAILURE;
+
+ pool = apr_allocator_owner_get(svn_pool_create_allocator(FALSE));
+
+ err = sub_main(&exit_code, argc, argv, pool);
+
+ if (err)
+ {
+ exit_code = EXIT_FAILURE;
+ svn_cmdline_handle_exit_error(err, NULL, "svnbrowse: ");
+ }
+
+ svn_pool_destroy(pool);
+ return exit_code;
+}
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