[Scons-users] Is their a way to build directly from the .sconsign.dblite file on an incremental build?

Don Baldwin donb at qti.qualcomm.com
Mon Oct 5 15:22:02 EDT 2020

Thanks Bill.  We’re aware of that option, and we do make use of that.  I was just looking for some additional optimizations to skip the actual parsing of the SConstruct files (which, in our builds, takes a significant amount of time).

Matt, thanks for the heads up on the ninja script generation tool.  We will definitely look into that further.


From: Scons-users <scons-users-bounces at scons.org> On Behalf Of Bill Deegan
Sent: Monday, October 5, 2020 12:08 PM
To: SCons users mailing list <scons-users at scons.org>
Subject: [EXT] Re: [Scons-users] Is their a way to build directly from the .sconsign.dblite file on an incremental build?


No you can't build with only a .sconsign.dblite.

But you can instruct SCons to not scan for implicit dependencies and just use those which are stored in the .sconsign.dblite.
--implicit-deps-unchanged should do it.
Take a look at the manpage.

On Mon, Oct 5, 2020 at 11:55 AM Don Baldwin <donb at qti.qualcomm.com<mailto:donb at qti.qualcomm.com>> wrote:

Is there an option for skipping the normal SConstruct file processing on an incremental build and just building directly from the saved .sconsign.dblite file from the previous build?

The goal here is to provide an option for doing very fast incremental builds is the developer knows ahead of time that no dependencies have changed.

Don Baldwin
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Scons-users at scons.org<mailto:Scons-users at scons.org>
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