[Scons-users] configuration file

[Jason Kenny]

Hi neal,

 

I am not sure exactly what you are doing, but Parts might be able to help. 

 

It has a notion of configurations. In this setup you can add flags, paths etc to the environment for a given component/parts you define based on some tool being used python, gcc cl, etc... 

 

You sound like you have a case like this:

 

Project-root

         Compa/

         Compb/

 

Where you want Compa to have a different environment setup from compb.  Or you have a case of wanting to build component A more than once with a different configuration.

 

Both cases are similar in Parts, as you would define your SConstruct and a part file for A and B. you would have something like this in SConstruct:

 

# example of build A twice with a different config

Part(“compa/compa.part”, CONFIG=”release”)

Part(“compa/compa.part”, CONFIG=”debug”)

 

# example of build A and B with a different config

Part(“compa/compa.part”, CONFIG=”release”)

Part(“compb/compb.part”, CONFIG=”debug”)

 

Ideally you also want your own configuration, so you can add your own to part-site/configuration/<your config>. 

 

# example of build A and B with a different custom config

Part(“compa/compa.part”, CONFIG=”mypython”)

Part(“compb/compb.part”, CONFIG=”myenvpython”)

 

However I read this again and I think you just want to be able to build A once. IF you don’t want the one pass build different configuration options presented above, but a simpler build A once with a configuration I want. You would just define something like after adding custom config files to a parts-site directory

 

#Sconstruct file

Part(“compa/compa.part”, CONFIG=”python”)

 

And run a command like such as:

 

scons --cfg=myenvpython all

to build everything with myenvpython configuration

scons --cfg=mypython all

to build everything with mypython configuration

 

either way Parts does allow you to define you own configuration ( based on some toolchain FYI) and control what configuration you use for what Component or via the command line or a parts.cfg file what is the default configuration to use.

 

I should have documentation for this online at the tigris site: http://parts.tigris.org/doc/PartsUserGuide.pdf  ( and it is check in the source) I trying to start updating it to a non-word format and clean it up. if you have questions about this I am happy to answer.

 

Hope this is helpful for you!

 

Jason

 

 

 

From: Scons-users [mailto:scons-users-bounces at scons.org] On Behalf Of Jason Kenny
Sent: Thursday, June 2, 2016 9:37 AM
To: dl9obn at darc.de; 'SCons users mailing list' <scons-users at scons.org>
Subject: Re: [Scons-users] configuration file

 

The latest code is at https://bitbucket.org/sconsparts/parts FYI.

 

Jason

 

From: Scons-users [mailto:scons-users-bounces at scons.org] On Behalf Of Dirk Baechle
Sent: Thursday, June 2, 2016 7:52 AM
To: SCons users mailing list <scons-users at scons.org <mailto:scons-users at scons.org> >
Subject: Re: [Scons-users] configuration file

 

Hi Neal,

this sounds pretty much like a job for ¨Parts¨ to me... http://parts.tigris.org .

Regards,

Dirk

Am 2. Juni 2016 13:45:04 MESZ, schrieb Neal Becker <ndbecker2 at gmail.com <mailto:ndbecker2 at gmail.com> >:

Bill Deegan wrote:

 Neal,
 
 You might want to look at the manpage for site_init.py <http://init.py>  (and site_scons
 directory)
 http://scons.org/doc/production/HTML/scons-man.html
 
 This is a file which is evaluated into SCons by default when SCons is
 launched.
 SCons will check several different locations for the file.
 See snippet from manpage below.
 I think this should fit your usage exactly?
 


Perhaps, but I need this to be per-project (per-directory).

For example, when building project A in my default system python 
environment, I use 1 setup.

When building project A using anaconda python in a virtualenv, I use a 2nd 
setup.

Right now, I use 2 different site.cfg files to setup the paths.


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