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Re: [Fab-user] Is there an opt-in switch for the old line buffering beha


From: Jorge Vargas
Subject: Re: [Fab-user] Is there an opt-in switch for the old line buffering behavior?
Date: Mon, 18 Jun 2012 09:54:25 -0400

On Sun, Jun 17, 2012 at 11:49 PM, Brent Tubbs <address@hidden> wrote:

Hello Fabric users and devs,

I'm working on a deployment orchestration tool that uses Celery workers to execute Fabric tasks.  The actual functionality is going great, but the log output from remote commands is a bit wonky; it's printed with just one character per line.  See http://pastebin.com/0SW99xL8 for an example.

I've confirmed that with the old line buffering behavior from Fabric <=0.9 I can get normally-formatted responses in my Celery worker logs.  (Example with a dummy project/task: http://pastebin.com/Y7jAhEqq.)  So, a couple questions:
  1. Where in the codebase is the best place to look to re-enable line buffering?  Is there just one place, or would I have to patch a bunch of stuff all over?
Did you saw ? I believe it does what you need. 
http://docs.fabfile.org/en/1.4.0/usage/fab.html#cmdoption--linewise
 
  1. Would a env.buffer_lines option be of interest to upstream or anyone else, or should I anticipate keeping this as my own fork/monkeypatch?
As I said above the flag is already in the codebase. I'm not 100% sure how it's executed but i'm pretty sure it's stored in env just like any other variables in fabric. So try it as I think you don't need a patch at all. Do keep in mind it has some limitations http://docs.fabfile.org/en/1.4.0/usage/parallel.html#linewise-output which is why it was turned off by default 
 
I appreciate your help,
Brent

 

---------

Brent Tubbs

 

YouGovPolimetrix

285 Hamilton Avenue
Suite #200

Palo Alto, CA 94301

address@hidden

http://www.yougov.com/

 

 


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