Are we able to support "ad-hoc" recipes via git?

[rubyFeedback]

This is more a question than an issue; if anyone wants to close it just feel free to do so.

Various programs I compile by first doing a git clone checkout.

For instance mpv:

git clone https://github.com/mpv-player/mpv

I found that the git clone source often works better for some programs, such as mpv, but
also others.

My own scripts repackage the directory, to indicate the current day, in DD.MM.YYYY format,
then I can compile them from source, using that directory name.

Does GoboLinux allow for recipes with git checkout? If not, perhaps we could add this
to Compile, even though I filed this under Recipes.

Something like:

Compile --git=mpv

or something like that.

One requirement for this would be registering the git URL to use in the recipe. Alternatively
it could be a separate file. (I can autogenerate these too, by the way, as I already have registered
the corresponding git URL in my local .yml files.)

(It may be overkill to add a git check-out URL to every recipe, in particular for recipes that never
need a git checkout, but for some programs, using git may be interesting. I do the same for
GCC and binutils by the way, and in 99% of the cases things work very well that way.)

[nuc1eon]

Ad-hoc recipes are already possible:

Compile AnyProgram 5.0.0 https://anyprogram.com/anyprogram.tar.xz

IIRC Compile will ask you whether to run MakeRecipe if the program is not available.

But the correct approach is to use MakeRecipe directly:

MakeRecipe AnyProgram 5.0.0 https://anyprogram.com/anyprogram.tar.xz

NewVersion does not support git recipes atm. Whether MakeRecipe supports them you have to check. If not, PRs welcome.