Re: [Fab-user] Unexpected results using multiple context managers and virtualenvwrapper

[Paul Walsh]

Hi,

Ah, I forgot to replace that. 

env.workon == 'workon {project}'

The 'workon' command both activates the virtualenv, and moves you to the root of the virtualenv's project (ie: your codebase).

But now that I re-read the part if the docs you linked to, I see my problem: prefix is applied for each command in the context, whereas in my use of it, I am incorrectly expecting it to be applied once, for the scope of the context.

Thanks.

On 3 Dec 2013, at 1:06 am, Jens Rantil <address@hidden> wrote:

Hi Paul,

I have not worked with virtualenvwrapper myself, but maybe can give you some input.

First off, what does `env.workon` contain? Also, have you seen the example for virtualenvwrapper in the documentation[1]? Maybe ti could be of any help?

[1] http://docs.fabfile.org/en/1.8/api/core/context_managers.html?highlight=workon#fabric.context_managers.prefix

Cheers,

Jens

On 2 dec 2013, at 23:05, Paul Walsh <address@hidden> wrote:

The examples for nested context managers in the docs (http://docs.fabfile.org/en/1.8/api/core/context_managers.html) demonstrate with virtualenvwrapper.

My code in question also uses virtualenvwrapper, but the results are unexpected:

for example, when my virtualenv project root is:

/srv/project/


And I have a Fabric task like so:

@task
def clone():
   utilities.notify(u'Cloning the data repository.')

   with prefix(env.workon), cd(/srv/project/tmp):
       run(#DO SOMETHING)

I expect the run command to be executed in /srv/project/tmp, but it is executed in /srv/project - the venv root.

Changing the order, makes no difference. Nor does nesting like so:

@task
def clone():
   utilities.notify(u'Cloning the data repository.')

   with prefix(env.workon):
with cd(/srv/project/tmp):
          run(#DO SOMETHING)


Why does any context manager where I activate a virtualenv, *always* put me at the root of the virtualenv, seemingly ignoring the other arguments for my context?

I'm on Fabric 1.8



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