python3调用windows dos命令的例子

柔光的暖阳◎ 2023-01-12 04:25 129阅读 0赞

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最近游戏项目在多个国家上线，每个国家都对应两份儿svn目录（一份是本地策划目录，一份是线上目录）。于是乎维护变得很烦躁。需要先更新本地策划svn目录，然后把更新的文件拷贝到对应的线上目录，然后提交线上svn目录，然后维护服务器。多个国家就要重复多次类似的更新，拷贝，提交的操作，还要格外注意不能手抖，出现少复制的错误。这种重复的操作很适合写一个工具来完成。

于是考虑使用python来写这个工具，最基本的操作就是使用python调用svn命令。因为windows安装svn后是没有svn命令行的，所以首先需要下载Apache-Subversion，这是svn命令行工具，解压后设置环境变量。

**python调用dos命令，使用下面的方法：**

os.popen(command)

此方法会阻塞，直到执行完成，当然也会返回执行的结果。如果你使用chcp设置过windows命令行的代码页，比如曾经使用：chcp 65001。那么在执行python程序的时候就可能产生gbk编码的错误，解决此问题需要重新使用：chcp 936来设置命令行代码页就OK了。

**完整代码如下：**

import os
    import shutil

‘’’

循环执行每个一个资源目录，每个目录的执行过程如下：

1：更新线上目录  
2：更新本地目录  
3：把本地目录的修改同步到线上目录  
4：提交线上目录

‘’’

\#本地svn目录  
local\_r\_en = “server/trunk/resource”  
local\_r\_ar = “server/resource\_ar”  
local\_r\_fr = “server/resource\_fr”  
local\_r\_ge = “server/resource\_ge”  
local\_r\_ita = “server/resource\_ita”  
local\_r\_ru = “server/resource\_ru”  
local\_r\_sp = “server/resource\_sp”  
local\_r\_tr = “server/resource\_tr”  
local\_r\_wp\_en = “server/resource\_wp”

\#线上svn目录  
online\_r\_en = “serverOL/resource\_en”  
online\_r\_ar = “serverOL/resource\_ar”  
online\_r\_fr = “serverOL/resource\_fr”  
online\_r\_ge = “serverOL/resource\_ge”  
online\_r\_ita = “serverOL/resource\_ita”  
online\_r\_ru = “serverOL/resource\_ru”  
online\_r\_sp = “serverOL/resource\_sp”  
online\_r\_tk = “serverOL/resource\_tk”  
online\_r\_wp\_en = “serverOL/resource\_wp”

\#不需要更新的服务器，请把下面对应的资源目录注释掉  
recource\_dict = \{\}  
recource\_dict\[local\_r\_en\] = online\_r\_en \#美国

# recource\_dict\[local\_r\_ar\] = online\_r\_ar \#阿拉伯 #

# recource\_dict\[local\_r\_fr\] = online\_r\_fr \#法国 #

# recource\_dict\[local\_r\_ge\] = online\_r\_ge \#德国 #

# recource\_dict\[local\_r\_ita\] = online\_r\_ita \#意大利 #

# recource\_dict\[local\_r\_ru\] = online\_r\_ru \#俄罗斯 #

# recource\_dict\[local\_r\_sp\] = online\_r\_sp \#西班牙 #

# recource\_dict\[local\_r\_tr\] = online\_r\_tk \#土耳其 #

# recource\_dict\[local\_r\_wp\] = online\_r\_wp \#wp #

‘’’  
复制文件到目的文件  
‘’’  
def copyFile(src,dst):  
\#目的目录  
dst\_dir = dst\[:dst.rfind("/")\]

\#如果目录不存在则创建目录，如果文件存在则删除  
if not os.path.exists(dst\_dir):  
os.makedirs(dst\_dir)  
elif os.path.exists(dst):  
os.remove(dst)

\#复制新文件  
shutil.copyfile(src, dst)  
\#end method copyFile

‘’’  
删除文件  
‘’’  
def removeFile(dst):  
if os.path.exists(dst):  
os.remove(dst)  
\#end method removeFile

‘’’  
打印命令结果  
‘’’  
def svnResult(result):  
for line in result:  
line = line.replace("\\n","")  
print(line)  
\#end method svnResult

‘’’  
svn命令执行  
‘’’  
def svnSimpleExecute(command):  
print(">>",command)  
result = os.popen(command).readlines()  
svnResult(result)  
\#end method svnExecute

‘’’  
svn提交目录  
‘’’  
def svnCommit(dst):  
command = “svn status “+dst  
print(”>>”,command)  
command\_result = os.popen(command).readlines()  
if len(command\_result) <= 2:  
print(“没有需要添加，删除和提交的内容”)  
return

for line in command\_result:  
\#去掉换行符  
line = line.replace("\\n","")  
print(line)  
line = line.replace(" “,”")  
firstChar = line\[0:1\]  
filePath = line\[1:\]  
\#命令  
command\_add = "svn add "+filePath  
command\_ci = "svn commit -m “svn tools commit，更新维护。” "+filePath  
command\_rm = "svn delete "+filePath

if firstChar == "?":#ADD命令
      svnSimpleExecute(command_add)
      svnSimpleExecute(command_ci)
    elif firstChar in "ADM":#COMMIT 命令
      svnSimpleExecute(command_ci)
    elif firstChar == "!": #删除命令
      svnSimpleExecute(command_rm)
      svnSimpleExecute(command_ci)
    else:
      print("Unkonw.......",line)

\#end method svnCommit

‘’’  
解析获得对应的本地文件和线上文件路径  
‘’’  
def parseLine(line,local\_dir,online\_dir):  
line = line.replace("’","")  
line = line.replace("\\","/")  
line = line.replace(local\_dir,"")  
pos = line.find("/")  
return local\_dir + line\[pos:\],online\_dir + line\[pos:\]  
\#end method parseLine

\#循环资源目录  
for local\_dir in recource\_dict:  
online\_dir = recource\_dict\[local\_dir\]

\#更新线上资源  
command\_online = "svn up " + online\_dir  
svnSimpleExecute(command\_online)

\#更新本地资源  
command\_local = “svn up " + local\_dir  
print(”>>",command\_local)

lines = os.popen(command\_local).readlines()  
if len(lines) <= 2:  
print(“没有更新内容”)  
continue

\#去掉头和尾部内容  
lines.pop(-1)  
lines.pop(0)

for line in lines:  
\#去掉换行符  
line = line.replace("\\n","")  
print(line)  
\#解析文件对应目录  
localFilePath,onlineFilePath = parseLine(line,local\_dir,online\_dir)

if line.startswith("Restored") or line.startswith("A") or line.startswith("U"):
      print("复制文件：",localFilePath,"到",onlineFilePath) 
      copyFile(localFilePath,onlineFilePath)
    elif line.startswith("D"):
      #删除
      print("删除文件：",onlineFilePath)
      removeFile(onlineFilePath)

\#提交线上目录  
svnCommit(online\_dir)

这下维护起来就简单多了，世界瞬间清净了。

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