大罗-PHP/Python博客

Posted by rollenc

Posted by rollenc

Error-Handing Techniques

• 返回中立值 如：数值返回0
• 换用下一个正确的数据
• 返回与前次相同的数据
• 换用最接近的合法值 如经度设置为(-180,180)之间
• 把警告信息记录到日志文件中 兼用以上的处理，同时记录它。
• 返回一个错误码
• 设置一个状态变量的值（个人不推荐）
• 用状态值作为函数的返回值
• 用语言内建的异常机制跑出一个异常
• 调用错误处理子程序活对象 优点：能把错误处理的职责都集中到一起。代价：错误处理代码与整个程序紧密耦合。
• 当错误发生时显示出错信息 出错信息散布于整个应用程序中。
• 用最妥当的方式在局部处理错误 留给执行设计和实现的程序员来解决，灵活性强，但整体正确性和可靠性无法满足，风险显著
• 关闭程序 用于人身攸关的应用程序

Posted by rollenc

Posted by rollenc

Posted by rollenc

Posted by rollenc

1。混乱状态。

没有管理。
交流方式
通过相互的文件共享来达到代码交流的目的。
问题：无法立刻获取协作者间的代码。
不能同时对相同文件进行编辑。
代码覆盖的冲突经常发生，且不可还原

2。简单管理。

Posted by rollenc

Subversion 1.2（最终版）

• 本书的单页HTML版本 (1.0MB)。
• 本书的多页HTML版本 。
• 本书的PDF版本 (1.5MB)。
• 本书的Docbook XML源文件。

Posted by rollenc

sudo htpasswd2 /etc/apache2/dav_svn.passwd server

cd /var/www
sudo mkdir /var/www/127.0.0.2 #建立测试服务器站点根目录
sudo chown www-data.www-data 127.0.0.2 #更改用户所有者
sudo su www-data #切换到www-data，需要使用sudo，因为超级权限可以使用任何用户，而不需要密码，执行后会发现命令提示符可能会有变化
svn checkout http://127.0.0.10/lab.luochunhui.com/trunk 127.0.0.2  #取出subversion上的文件，可能需要密码
                                                                                  # 请保证执行checkout语句的用户是www-data，否则在以后钩子调用update时会出现无法创建或修改文件的错误
exit #退出www-data用户

sudo chown www-data www
sudo su www-data

cd /var/www
sudo mkdir /var/www/127.0.0.2 #建立测试服务器站点根目录
sudo svn checkout http://127.0.0.10/lab.luochunhui.com/trunk 127.0.0.2 #取出subversion上的文件，可能需要密码
sudo chown -R www-data.www-data 127.0.0.2/ #把文件用户修改成apache的执行用户

ls -Al 127.0.0.2

drwxr-xr-x 7 www-data www-data 4096 2007-01-17 10:21 .svn
...一些其他的文件

sudo gedit /etc/apache2/sites-available/127.0.0.2

        ServerAdmin rollenc@localhost.com
        ServerName localhost
        DocumentRoot /var/www/127.0.0.2
	
	Options FollowSymLinks
	AllowOverride None
	
	
		Options Indexes FollowSymLinks MultiViews
		AllowOverride None
		Order allow,deny
		allow from all
		# Uncomment this directive is you want to see apache2's
		# default start page (in /apache2-default) when you go to /
		#RedirectMatch ^/$ /apache2-default/
	

	ErrorLog /var/log/apache2/127.0.0.2_error.log

	# Possible values include: debug, info, notice, warn, error, crit,
	# alert, emerg.
	LogLevel warn

	CustomLog /var/log/apache2/127.0.0.2_access.log combined
	ServerSignature On

sudo ln -s /etc/apache2/sites-available/127.0.0.2 /etc/apache2/sites-enabled/127.0.0.2

sudo apache2 -k restart

cd /var/svn/hooks/
sudo gedit post-commit

#!/bin/sh
REPOS="$1"
REV="$2"
svn update /var/www/127.0.0.2 --username server --password serverpassword
#echo `whoami`,$REPOS,$REV >> /home/rollenc/svn_hook_var.txt
#svn update /var/www/127.0.0.2 --username server --password serverpassword 2>/home/rollenc/svn_hook_log.txt

sudo chmod 755 post-commit

cd /var/www
svn checkout http://127.0.0.10/lab.luochunhui.com/trunk 127.0.0.6 #取出subversion上的文件作为你的工作副本，你的工作以后就在这个文件夹内展开。
                                        ＃所以，不需要sudo，但要保证有127.0.0.6文件夹存在，而且可写
echo '' > phpinfo.php #建立一个phpinfo文件
svn add phpinfo.php   #把phpinfo加入版本库
svn commit  #提交

@echo off
SET REPOS=%1
SET USER=%2
SET SVN="D:/subversion/bin/svn.exe"
SET DIR="E:/htddocs/testserver.lab.luochunhui.com"
(call %SVN% update %DIR% --username server --password serverpassword --non-interactive)

@echo off
echo "" >  E:/hookLog.txt
echo "1" >> E:/hookLog.txt
SET REPOS=%1
echo "2" >> E:/hookLog.txt
SET USER=%2
echo "3" >> E:/hookLog.txt
echo %REPOS%, %USER% >> E:/hookLog.txt
SET SVN="D:/subversion/bin/svn.exe"
echo "4" >> E:/hookLog.txt
SET DIR="E:/htdocs/testserver.lab.luochunhui.com"
echo "5" >> E:/hookLog.txt
REM call %SVN% update %DIR% >> E:/hookLog.txt
REM SET PATH=D:/subversion/bin/
REM svn update "E:/htdocs/testserver.lab.luochunhui.com" >> E:/hookLog.txt
(call %SVN% update "E:/htdocs/testserver.lab.luochunhui.com") >> E:/hookLog.txt
echo "6" >> E:/hookLog.txt

"" 
"1" 
"2" 
"3" 
E:/svn2, 54 
"4" 
"5" 
"6" 

Posted by rollenc

 sudo apt-get install subversion subversion-tools  libapache2-svn

dav_fs.load dav_svn.conf dav_fs.conf dav.load dav_svn.load

sudo svnadmin create /var/svn 

ls /var/svn

conf dav db format hooks locks README.txt

cd /etc/apache2/mods-enabled
sudo vi dav_svn.conf

# dav_svn.conf - Example Subversion/Apache configuration
#
# For details and further options see the Apache user manual and
# the Subversion book.

#  ... 
# URL controls how the repository appears to the outside world.
# In this example clients access the repository as http://hostname/svn/


  # Uncomment this to enable the repository,
    DAV svn

  # Set this to the path to your repository
    SVNPath /var/svn

  # The following allows for basic http authentication.  Basic authentication
  # should not be considered secure for any particularly rigorous definition of
  # secure.

  # to create a passwd file
  # # rm -f /etc/apache2/dav_svn.passwd
  # # htpasswd2 -c /etc/apache2/dav_svn.passwd dwhedon
  # New password:
  # Re-type new password:
  # Adding password for user dwhedon
  # #

  # Uncomment the following 3 lines to enable Basic Authentication
    AuthType Basic
    AuthName "Subversion Repository"
    AuthUserFile /etc/apache2/dav_svn.passwd

  # Uncomment the following line to enable Authz Authentication
  # AuthzSVNAccessFile /etc/apache2/dav_svn.authz

  # The following three lines allow anonymous read, but make
  # committers authenticate themselves.

  
    Require valid-user
  

        ServerName svn.luochunhui.com
        DocumentRoot /var/svn

      
                DAV svn
                SVNPath /var/svn
                AuthType Basic
                AuthName "Subversion Repository"
                AuthUserFile /etc/apache2/dav_svn.passwd
                
                        Require valid-user
                
        

sudo htpasswd2 -c /etc/apache2/dav_svn.passwd username

sudo htpasswd2 /etc/apache2/dav_svn.passwd username2

sudo apache2 -k restart

Revision 0: /
Powered by Subversion version 1.3.1 (r19032).

mkdir -p tmp/lab.luochunhui.com/trunk tmp/eemap/trunk #如果你有其他已经写好的需要一起导入的文件，cp过来让在相应的trunk目录下，然后下一步。
svn import tmp http://127.0.0.10/ #更具提示输入message信息和用户，密码。

sudo chmod -R 777 /var/svn

Revision 1: /

* eemap/
* lab.luochunhui.com/


继续checkout和commit吧，祝你有一个愉快的subversion。

Defined tags for this entry: subversion, Ubuntu, 技术

Posted by rollenc

Last modified on 2010-04-20 14:51

Posted by rollenc

LoadModule dav_svn_module "D:/Subversion/bin/mod_dav_svn.so"
LoadModule authz_svn_module "D:/Subversion/bin/mod_authz_svn.so"

	DAV svn
	SVNPath "E:/svn2"
	AuthType Basic
	AuthName "Subversion Repository"
	AuthUserFile "D:/Apache2/svn.password"
	
		Require valid-user
	

        ServerName svn.luochunhui.com
	DocumentRoot E:/svn2

      
		DAV svn
		SVNPath "E:/svn2"
		AuthType Basic
		AuthName "Subversion Repository"
		AuthUserFile "D:/Apache2/svn.password"
		
			Require valid-user
		
	

rollenc:$apr1$ek/.....$esgXZzlr/JLPsnxkfQjss1
test:$apr1$qr/.....$b95NrDKp9mHU84of3KX8c1

svn
|-EEmap
| |-trunk
| |-branch
|-lab.luochunhui.com
| |-trunk
| |-branch

Posted by rollenc

Posted by rollenc

Posted by rollenc

    Xubuntu is a complete GNU/Linux based operating system with an Ubuntu base. It is lighter on system requirements and tends to be more efficient than Ubuntu with GNOME or KDE, since it uses the Xfce Desktop environment, which makes it ideal for old or low-end machines, thin-client networks, or for those who would like to get more performance out of their hardware.

发现变化，并封装变化。

Posted by rollenc