[Scons-users] Post-processing of binaries

[William Blevins]

Jonathon,

Option B makes the most sense.  Option A done correctly would give a Cyclic
Dependency error without explicitly doing a dependency ignore call from
source to target.

My opinion would be to make a custom builder/emitter to take in your source
Q and post-process to target R.  SCons default behavior will remove the old
target before rebuilding, so you will not have to explicitly remove it if
the action fails.
http://www.scons.org/doc/production/HTML/scons-user.html#chap-file-removal

V/R,
William

On Thu, Apr 9, 2015 at 2:36 PM, Jonathon Reinhart <
jonathon.reinhart at gmail.com> wrote:

> On Tue, Apr 7, 2015 at 1:30 PM, Dirk Bächle <tshortik at gmx.de> wrote:
> > if I would send you a binary file, without any additional information,
> how
> > would you know/decide whether this file was already post-processed or
> not?
>
> One solution is, if the file exists *at all*, it must be complete.
> Can we make an
> action list operate atomically?  Can the target file be deleted if any
> of the actions
> necessary to complete it fail?
>
> I've posted this question on Stack Overflow, because SCons thankfully does
> get
> a fair amount of attention there!
>
>
> http://stackoverflow.com/questions/29546276/scons-delete-target-on-failure-of-any-action
>
> Thank you,
>
> Jonathon
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