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[bug#44269] [PATCH] gnu: Add eosio-cdt.

From: Marius Bakke
Subject: [bug#44269] [PATCH] gnu: Add eosio-cdt.
Date: Tue, 10 Nov 2020 21:21:54 +0100 writes:

> Hi all!
> This is my first patch, I hope I'm doing it correctly.

Cool, welcome!

The patch is lacking a proper commit message, but looks pretty good
overall.  Some comments follow.

> The patch below adds the Contract Development Toolkit (compiler) for smart
> contracts on the EOS blockchain. I also have a package for EOS itself that is
> a bit more involved, so I'll submit separately.
> Total package size is 607MB of which self is 329MB. It takes a while to
> compile (about an hour on my i7 laptop).

I suppose some of that time is because of the bundled LLVM, libcxx,
etc.  Do you know if it's possible to remove those, or at least build
them separately?

> diff --git a/gnu/packages/finance.scm b/gnu/packages/finance.scm
> index 4397cf8ba8..0e661c4b56 100644
> --- a/gnu/packages/finance.scm
> +++ b/gnu/packages/finance.scm

Can you also add your name to the list of authors at the top of the file?

> @@ -59,6 +59,7 @@
>    #:use-module (gnu packages compression)
>    #:use-module (gnu packages crypto)
>    #:use-module (gnu packages curl)
> +  #:use-module (gnu packages cmake)

I believe this import is unused.

> +(define-public eosio-cdt
> +  (package
> +    (name "eosio-cdt")
> +    (version "1.7.0")
> +    (source
> +     (origin
> +       (method git-fetch)
> +       (uri (git-reference (url "";)
> +                           (commit (string-append "v" version))
> +                           (recursive? #t)))
> +       (sha256
> +        (base32
> +         "1mrc8dn7sf086456c63rlha4j3fh0g1a59dbd6in6nyhan712xps"))
> +       (file-name (git-file-name name version))))
> +    (build-system cmake-build-system)
> +    (native-inputs
> +     `(("git" ,git)

It looks like the git dependency comes from
"modules/ClangExternalProject.txt".  Though I don't see it being used.
Can you try to substitute* out the "find_package(Git ...)" statement and
see if it's possible to make it work without it?

It's not uncommon that build scripts look for git even when it's not
strictly needed.  By removing the dependency we avoid needlessly
rebuilding this package every time git is updated.

> +       ("doxygen" ,doxygen)
> +       ("pkg-config" ,pkg-config)
> +       ("curl" ,curl)))
> +    (inputs
> +     `(("gmp" ,gmp)
> +       ("openssl" ,openssl)
> +       ("python" ,python-3)))
> +    (arguments
> +     `(#:build-type "Release"))

Is there a particular reason to use a "Release" build here (as opposed
to the default "RelWithDebInfo")?  Guix is a hackers distro, and
debugging symbols are nice.  :-)

> +    (home-page "";)
> +    (synopsis "EOSIO.CDT is a suite of tools used to build EOSIO contracts")

Just "Suite of tools to build EOSIO contracts".

Otherwise the patch looks great.  Can you send an updated version?

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