Re: manifest.scm - Howddya get specific commit 4 package?

[Niklas Schmidt]

Hello Jacob,

I would like to point you to the section 2.1.5.3 Inheritance of the 
cookbook:
https://guix.gnu.org/cookbook/en/guix-cookbook.html#Inheritance

There it says:

  All unspecified fields are inherited from the parent package. This is
  very convenient to create alternative packages, for instance with
  different source, version or compilation options. 

So I usually create my own package module, specify a new package that 
inherits the package I'm interested in and give it another unique name, 
say my-freecad. Then I specify my-freecad in the manifest and use the -L 
or --load-path= flag with the file system path of own package module to 
invoke guix package, guix shell, and so on.

Hope that get's you somewhere.

To be exact, I have not used this technique for obtaining a package a 
specific commit, but for different versions. I see no reason it wouldn't 
work for this scenario as well, though.


Greetings
Niklas


On Tue, Jan 11, 2022 at 00:18:01 +0000, Jacob Hrbek wrote:
> I need FreeCAD 07c51f1b2ce62b1c770ffde8a7c40899a8abf846 -> How can i 
> get it through manifest.scm without using guix install freecad 
> --with-commit=freecad=07c51f1b2ce62b1c770ffde8a7c40899a8abf846 ?