Pkg.jl: Generating a Project.toml file for an existing package

[dmbates]

Adding a package with Pkg3 currently produces a warning

Warning: packages will require to have a [Julia]Project.toml file in the future

(Gramatical aside - shouldn't that be "will be required to have a ..." or just "will require a ..."?)

I can see that Pkg3.generate and its REPL equivalent produce such a file and that the Compat package has this file but it wasn't clear to me how it is to be generated (and updated?) for an existing package.

[KristofferC]

Yes, should be added.

[StefanKarpinski]

We're going to make PRs for all registered packages at some point, generating UUIDs based on the current registered names – that's how we've been doing it in the Uncurated registry. After that, going forward, new packages will generate random UUIDs instead.

[dmbates]

Can I count on the uuid currently associated with a package being the eventual uuid for the package?

P.S. Let me know if you would prefer that I just wait for this to roll out and let you spend your time doing real work instead of responding to my questions.

[StefanKarpinski]

Yes, you can count on it: since the current METADATA is a shared global namespace, we're going to assign UUIDs to all packages in METADATA based on their registered names. I don't mind answering questions – my current work is writing docs and answering questions, so knowing what people are wondering about is quite helpful 😃

[DilumAluthge]

What's the process for generating the Project.toml file for an existing package that is not registered in METADATA.jl?

[jgoldfar]

Doc request for generating Project.toml file for an existing package seconded; are there any early adopter examples (packages outside the stdlib) using Pkg/Pkg3?

[KristofferC]

Compat.jl.

[jgoldfar]

In case anyone else happens upon this issue/request, MPI.jl after https://github.com/JuliaParallel/MPI.jl/pull/210 is a good example for how the new Pkg interacts with CI

[fredrikekre]

https://github.com/JuliaLang/Pkg.jl/blob/master/bin/gen_project.jl

[astadmistry]

1886 #1632

Generating a Project.toml and Manifest.toml for an existing package: (Tested on Julia 1.5)
https://discourse.julialang.org/t/convert-require-to-project-toml-and-manifest-toml/17775/14

Github gist of script

REF:
https://discourse.julialang.org/t/convert-require-to-project-toml-and-manifest-toml/17775/3
https://github.com/JuliaLang/Pkg.jl/commit/34ec22f5405ffc7f8f25a4b4f7178e887f718051
https://github.com/JuliaLang/Pkg.jl/blob/34ec22f5405ffc7f8f25a4b4f7178e887f718051/src/Types.jl
https://github.com/JuliaLang/Pkg.jl/search?p=1&q=gen_project.jl&type=Issues