Bye bye, fast compilation times

[Andres Clari]

On Wednesday, 7 February 2018 at 00:36:22 UTC, H. S. Teoh wrote:
> On Tue, Feb 06, 2018 at 11:20:53PM +0000, Andres Clari via 
> Digitalmars-d wrote: [...]
>> [...]
>
> I seem to vaguely recall that in some cases, ctRegex might even 
> perform slower than regex().  But either way, my use cases for 
> regexes generally aren't performance-sensitive enough to be 
> worth the trouble of huge compilation time slowdown -- I just 
> use regex() instead of ctRegex.
>
>
> [...]
>> [...]
>
> That depends on what you're doing with it, and also how you're 
> building it. 3500+ lines isn't a lot of code; it ought to 
> compile pretty fast unless you're using a lot of (1) templates, 
> (2) CTFE.  Also, I find that dub builds are excruciatingly slow 
> compared to just invoking dmd directly, due to network access 
> and rescanning dependencies on every invocation.  I have a 
> 4700+ line vibe.d project; Diet templates are 
> template/CTFE-heavy and generally take the longest to build. (I 
> dumped dub and went back to an SCons-based system with separate 
> compilation for major subsystems -- as long as I don't 
> recompile Diet templates, the whole thing can build within 
> seconds; with Diet templates it takes about 30 seconds :-/.)
>
>
> T

Well I'm using vibe.d, but not templates on this project, just a 
minimal rest service, and a few timers and runTasks. So yeah I 
don't see why it should slow down that much.

Is there some tutorial or example for using SCons with dub 
dependencies?