新手问一个关于 fabric 的问题

推荐学习书目

› Learn Python the Hard Way

Python Sites

› PyPI - Python Package Index

› http://diveintopython.org/toc/index.html

› Pocoo

值得关注的项目

› PyPy

› Celery

› Jinja2

› Read the Docs

› gevent

› pyenv

› virtualenv

› Stackless Python

› Beautiful Soup

› 结巴中文分词

› Green Unicorn

› Sentry

› Shovel

› Pyflakes

› pytest

Python 编程

› pep8 Checker

Styles

› PEP 8

› Google Python Style Guide

› Code Style from The Hitchhiker's Guide

This topic created in 3663 days ago, the information mentioned may be changed or developed.

from fabric.api import *

@task()
def pi_test():
    run('VAR1=hehe')
    run('echo $VAR1')

[[email protected]] Executing task 'pi_test'
[[email protected]] run: VAR1=hehe
[[email protected]] run: echo $VAR1
[[email protected]] out: 
[[email protected]] out: 

Done.

请问怎么才能让 run('echo $VAR1') 成功输出 hehe 来，可以做到吗？

5 replies • 2016-09-18 15:47:54 +08:00

zz1956

Sep 13, 2016

#run('VAR1=hehe && echo $VAR1')

或者

VAR1= 'hehe'

@task()
def test1():
run('echo %s' %VAR1)

hanks315

Sep 13, 2016 via iPhone

http://docs.fabfile.org/en/1.5/api/core/context_managers.html#fabric.context_managers.shell_env

laoyur

Sep 13, 2016

@zz1956
@hanks315
感谢回复

shell_env 是可以：
@task()
def pi_test():
with shell_env(VAR1='hehe'):
run('echo $VAR1')
但是这样很烦，本来 shell 自己的上下文逻辑，硬生生用 python 给拼接起来了，跟 zz1956 说的第二种方法类似

我还是仿冒一下 zz1956 的第一种方案吧：

@task()
def pi_test():
sh = '''
VAR1=hehe
echo $VAR1
'''
run(sh)

siteshen

Sep 14, 2016

def hehe():
with prefix('VAR1=hehe'):
run('echo $VAR1')

zonghua

Sep 18, 2016

没什么经验，结果我在 Java 的工程里也用 fabric 去部署