On Friday, 6 May 2016 at 08:07:30 UTC, Pjotr Prins wrote:
At Dconf we had a discussion on creating reproducible builds of
the D compilers. One thing that is required is bootstrapping
the build. In GNU Guix we start from a working C compiler which
is a reasonable starting point (it could have been LISP instead
;)
For D this means that even if all components of the compilers
are written in D we should have a (chain of) compilation steps
that can be initiated from a C or C++ compiler. This is still
the case today, but I want to highlight this point here so we
do not lose that facility.
GNU Guix can be used as a reproducible reference build system
where we capture the bootstrapping process nicely and test the
builds on the build farm(s) whenever something changes.
Hi,
Digger can already bootstrap D from the last C++ compiler.
It also shares a lot of the same design ideas as Guix (storing
build results as a hash of code and dependencies). It uses git as
the store, which allows e.g. storing every buildable commit of D
ever in about 5 GB.
On Windows, D needs proprietary software (Visual Studio) to
build. I'm not sure whether that's something possible with Guix.
What Digger does is that it downloads only the Visual Studio
components that are necessary, verifies their integrity, and
unpacks them into a directory (without requiring administrator
rights) and uses it from there.
https://github.com/CyberShadow/Digger
https://blog.thecybershadow.net/2015/05/05/is-d-slim-yet/