python：通过python脚本快速执行 bash 命令

git config --global core.filemode false

* 第一次写的时候，凭逻辑认为代码是正确的，可以达到预期效果。但是拿到服务器上运行发现有问题
* 第二次，在本地简单模拟了服务器的目录结构，测试通过了。但是拿到服务器运行，发现依然没有达到预期效果。
* 第三次，为了让代码能正确执行，并达到预期效果。在代码中输出了当前执行路径，并在服务器上验证通过了。

python

bash

cd xxx/

bash

python

bash

python

bash

os.popen(bash_comand)

cd xxx/

bash

os.chdir(path)

cd xxx/

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @name   : find_t.py
# @author : cat
# @date   : 2017/8/2.

import os
import time

def bash_shell(bash_command):
"""
python 中执行 bash 命令
:param bash_command:
:return: bash 命令执行后的控制台输出
"""
try:
return os.popen(bash_command).read().strip()
except:
return None

def find_target(target_path="./../", key='.git'):
"""
查找目标目录所在的目录 ： 如 ／aa/bb/.git --> return /aa/bb/
:param target_path:
:param key: target
:return:
"""
walk = os.walk(target_path)
for super_dir, dir_names, file_names in walk:
for dir_name in dir_names:
if dir_name == key:
dir_full_path = os.path.join(super_dir, dir_name)
# print(dir_full_path, super_dir, dir_name, sep=" ## ")
yield super_dir

if __name__ == '__main__':
print("start execute bash ...........")
st = time.time()
cwd = os.getcwd()
# this for repo
for repo_path in find_target(os.getcwd(), key='.repo'):
os.chdir(repo_path)
if repo_path == os.getcwd():
print('find repo in -->', repo_path)
print(bash_shell('pwd'))
print(bash_shell('repo forall -c git config core.fileMode false --replace-all'))

else:
print('error in chdir 2 {}'.format(repo_path))
if os.getcwd() != cwd:
os.chdir(cwd)
if os.getcwd() != cwd:
print('change 2 cwd FAIL !!!  {}'.format(cwd))

# this for git
for git_path in find_target(os.getcwd(), key='.git'):
os.chdir(git_path)
if git_path == os.getcwd():
print('find git in -->', git_path)
print(bash_shell('pwd'))
print(bash_shell('git config --global core.filemode false'))
else:
print('error in chdir 2 {}'.format(git_path))
if os.getcwd() != cwd:
os.chdir(cwd)
if os.getcwd() != cwd:
print('change 2 cwd FAIL !!!  {}'.format(cwd))

et = time.time()
print('\n\n    #### execute finished in {:.3f} seconds ####'.format(et - st))
print('\n')
# test for bash_command
# print(bash_shell('git init'))
# print(bash_shell('ls -al'))

bash_command = pwd
/Users/cat/Desktop/testGit/a6
bash_command = pwd
/Users/cat/Desktop/testGit/a6/frameworks/base
bash_command = pwd
/Users/cat/Desktop/testGit/a6/packages/apps/Email
bash_command = pwd
/Users/cat/Desktop/testGit/a6/packages/apps/Music
bash_command = pwd
/Users/cat/Desktop/testGit/a6/packages/apps/Settings
bash_command = pwd
/Users/cat/Desktop/testGit/a6/vender/customer
spend time : 0.096 seconds
end  ####################  end

Process finished with exit code 0

.repo

.git

bash_commad(command)

git / repo