VisualSVN设置客户端提交必须填写注释信息

在服务器相应仓库目录下hooks目录里，添加pre-commit.bat，内容如下：

@echo off
setlocal
set SVN_BINDIR="C:\Program Files\VisualSVN Server"
set SVNLOOK="C:\Program Files\VisualSVN Server\bin\svnlook.exe"
set REPOS=%1
set TXN=%2
rem check that logmessage contains at least 10 characters
%SVNLOOK% log %REPOS% -t %TXN% | findstr ".........." >nul
if %errorlevel% gtr 0 goto err
exit 0
:err
echo "提交文件时必须添加注释，不能少于10个字符，提交中止." 1>&2
exit 1