新手问一个关于 fabric 的问题 - V2EX
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laoyur
V2EX    Python

新手问一个关于 fabric 的问题

  •  
  •   laoyur 2016-09-13 18:24:35 +08:00 2677 次点击
    这是一个创建于 3316 天前的主题,其中的信息可能已经有所发展或是发生改变。
    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 条回复    2016-09-18 15:47:54 +08:00
    zz1956
        1
    zz1956  
       2016-09-13 19:46:55 +08:00
    #run('VAR1=hehe && echo $VAR1')

    或者

    VAR1= 'hehe'

    @task()
    def test1():
    run('echo %s' %VAR1)
    laoyur
        3
    laoyur  
    OP
       2016-09-13 20:23:08 +08:00
    @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
        4
    siteshen  
       2016-09-14 13:53:18 +08:00
    def hehe():
    with prefix('VAR1=hehe'):
    run('echo $VAR1')
    zonghua
        5
    zonghua  
       2016-09-18 15:47:54 +08:00
    没什么经验,结果我在 Java 的工程里也用 fabric 去部署
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