osx_linux.py脚本文件改进,每次只需要执行该脚本即可,无需对原hosts文件手动修改,解决问题如下:
场景需求: 假如我的hosts文件里配置了几个家庭主机的host信息(或者公司的host信息)例:
192.168.1.9 hosts1
192.168.1.6 hosts2
192.168.1.8 hosts3
原来脚本执行之后,需要手动从hosts.bak文件恢复,新脚本将无需改动自动在后面追加云hosts配置信息,当再次更新时会自动查找并删除原云hosts配置信息,家庭或企业hosts信息将保留,无需手动修改
osx_linux.py脚本文件以及patch见最后面.
tag: googlecode地址能访问的几率远远低于github,故将云hosts的URL文件修改为github地址
非常感谢你们的项目,愿尽绵薄之力,谢谢!
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osx_linux.py脚本文件
#!/usr/bin/env python
# -*- coding:utf-8 -*-
#author:rikugun
import sys
import urllib
import os
from shutil import copyfile
HOSTS_URL='https://raw.githubusercontent.com/smarthosts/smarthosts/master/trunk/hosts'
# HOSTS_URL='https://smarthosts.googlecode.com/svn/trunk/hosts'
LOCAL_HOSTS='/etc/hosts'
TAG_START = '###start smarthosts###'
TAG_END = '###end smarthosts###'
def main():
"""主函数"""
#备份文件
copyfile(LOCAL_HOSTS,'hosts.bak')
lines = list()
start = -1
end = -1
with open(LOCAL_HOSTS, 'r') as f:
for i, line in enumerate(f):
if line.startswith(TAG_START):
start = i
elif line.startswith(TAG_END):
end = i
line=''
if end == -1 and start == -1:
lines.append(line)
elif end > -1:
lines.append(line)
with open(LOCAL_HOSTS,'w') as f:
for line in lines:
f.write(line)
f.write(TAG_START+os.linesep)
for line in urllib.urlopen(HOSTS_URL):
f.write(line.strip()+os.linesep)
f.write(TAG_END)
print "success!"
if __name__ == '__main__':
if len(sys.argv)>1:
HOSTS_URL = sys.argv[1]
main()patch文件内容
diff --git a/trunk/osx_linux.py b/trunk/osx_linux.py
index 35be490..2827978 100644
--- a/trunk/osx_linux.py
+++ b/trunk/osx_linux.py
@@ -8,20 +8,41 @@ import os
from shutil import copyfile
-HOSTS_URL='https://smarthosts.googlecode.com/svn/trunk/hosts'
+HOSTS_URL='https://raw.githubusercontent.com/smarthosts/smarthosts/master/trunk/hosts'
+# HOSTS_URL='https://smarthosts.googlecode.com/svn/trunk/hosts'
LOCAL_HOSTS='/etc/hosts'
+TAG_START = '###start smarthosts###'
+TAG_END = '###end smarthosts###'
def main():
"""主函数"""
#备份文件
copyfile(LOCAL_HOSTS,'hosts.bak')
- with open(LOCAL_HOSTS,'aw') as hosts:
- hosts.write(os.linesep)
- #转义windows和unix的换行
- for line in urllib.urlopen(HOSTS_URL):
- hosts.write(line.strip()+os.linesep)
+
+ lines = list()
+ start = -1
+ end = -1
+ with open(LOCAL_HOSTS, 'r') as f:
+ for i, line in enumerate(f):
+ if line.startswith(TAG_START):
+ start = i
+ elif line.startswith(TAG_END):
+ end = i
+ line=''
+ if end == -1 and start == -1:
+ lines.append(line)
+ elif end > -1:
+ lines.append(line)
+ with open(LOCAL_HOSTS,'w') as f:
+ for line in lines:
+ f.write(line)
+ f.write(TAG_START+os.linesep)
+ for line in urllib.urlopen(HOSTS_URL):
+ f.write(line.strip()+os.linesep)
+ f.write(TAG_END)
+
print "success!"
if __name__ == '__main__':
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