[Scons-users] Trying to use Execute()

[Tom Tanner (BLOOMBERG/ LONDON)]

To be honest whenever I've needed to filter the output I've normally done a wrapper script which executes the rest of the command line with a pipe, and if it succeeds, examine the output.

Thus instead of 
Execute('some_function with argument')
i'd run
Execute('wrapper some_function with argument')

where wrapper would be something like (untested off the top of my head perl):
#!/usr/bin/env perl
my $res = open '-|', PIPE, @ARGV or die "Failed to run @ARGV\n";
while (<PIPE>) { ... }
close PIPE or die "Unexpected error running @ARGV\n";


----- Original Message -----
From: matias.iturburu at tallertechnologies.com
To: Tom Tanner (BLOOMBERG/ LONDON), scons-users at scons.org
At: Nov 22 2013 15:10:04


2013/11/22 Tom Tanner (BLOOMBERG/ LONDON) <ttanner2 at bloomberg.net>
 
Can't you try using env['PSPAWN'] - there's a builder which does that (I forget which though).

But, then again. You just rely in spawning a subprocess.Popen call, and you have to build the command string yourself. No?

 


----- Original Message -----
From: scons-users at scons.org

To: scons-users at scons.org
At: Nov 22 2013 14:14:37


2013/11/21 William Deegan <bill at baddogconsulting.com>
   

On Nov 21, 2013, at 12:22 PM, Leandro Moreno <leandro.moreno at tallertechnologies.com> wrote:
 

> Hello again SCons guys!

>

> This time, I have an inconvenient trying to use the function Execute() from SCons.

> I have a builder to check the name's convention. But the tool that do the job, check the dependencies errors too. And I want to filter those errors. So, to do this I use subprocess.Popen(), and I take the stderr.

    > Now, I want to use The Execute(), but the problem here is that I don't know how to take the output to manipulate It. Is there a way to do this?

Redirect the output to a file, add the file to the list of outputs in the builder's emitter.
 Create another builder to process that file.


That's really inconvenient. 
Couldn't we subclass Execute an make it return a stderr or stdout object?
Is there interest in something along this lines?
 
-Bill
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-- 
Matías Iturburu
Software Engineer

San Lorenzo 47, 3rd Floor, Office 5
   Córdoba, Argentina 


  
Phone: +54 351 4217888 / +54 351 4218211
   Skype: matias.iturburu

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-- 
Matías Iturburu
Software Engineer

San Lorenzo 47, 3rd Floor, Office 5
 Córdoba, Argentina 


Phone: +54 351 4217888 / +54 351 4218211
 Skype: matias.iturburu
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