Add hare compiler

[Ekaitz Zarraga <ekaitz@elenq.tech>]

Hi

I made a possible package for the Hare compiler:
https://harelang.org/installation/

But I'm not sure how we should handle a couple of things.

The dependencies are propagated while maybe we should mention which are the inputs and set them to be called from the store directly, should we?
And also the way they manage to make the configuration for the compiler driver is adding a config.mk file ourselves. I decided to ignore it and add the config as environment variables in order to simplify the process but I'm not sure if you find any other way that fits better with our needs.

Also the language is kind of a beta and they don't have a release schedule yet. Are we ok packaging software in that status?

Thanks,
Ekaitz

Here's the patch if you want to comment on anything else:


From 308b67848e93a25f627dd64e024e9a501979a157 Mon Sep 17 00:00:00 2001
Message-Id: <308b67848e93a25f627dd64e024e9a501979a157.1689368739.git.ekaitz@elenq.tech>
From: Ekaitz Zarraga <ekaitz@elenq.tech>
Date: Fri, 14 Jul 2023 22:52:59 +0200
Subject: [PATCH] gnu: Add hare

* gnu/packages/hare.scm (hare, harec): New variable.
* gnu/local.mk: Add hare.scm
---
 gnu/local.mk          |   2 +
 gnu/packages/hare.scm | 104 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 106 insertions(+)
 create mode 100644 gnu/packages/hare.scm

diff --git a/gnu/local.mk b/gnu/local.mk
index 06a376a99a..4d1645c595 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -59,6 +59,7 @@
 # Copyright © 2023 Zheng Junjie <873216071@qq.com>
 # Copyright © 2023 Ivana Drazovic <iv.dra@hotmail.com>
 # Copyright © 2023 Andy Tai <atai@atai.org>
+# Copyright © 2023 Ekaitz Zarraga <ekaitz@elenq.tech>
 #
 # This file is part of GNU Guix.
 #
@@ -314,6 +315,7 @@ GNU_SYSTEM_MODULES =				\
   %D%/packages/gv.scm				\
   %D%/packages/gxmessage.scm			\
   %D%/packages/hardware.scm			\
+  %D%/packages/hare.scm				\
   %D%/packages/haskell.scm			\
   %D%/packages/haskell-apps.scm			\
   %D%/packages/haskell-check.scm		\
diff --git a/gnu/packages/hare.scm b/gnu/packages/hare.scm
new file mode 100644
index 0000000000..0c65463e92
--- /dev/null
+++ b/gnu/packages/hare.scm
@@ -0,0 +1,104 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2023 Ekaitz Zarraga <ekaitz@elenq.tech>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (gnu packages hare)
+  #:use-module (guix packages)
+  #:use-module (guix utils)
+  #:use-module (guix git-download)
+  #:use-module ((guix licenses) #:prefix license:)
+  #:use-module (guix build-system gnu)
+  #:use-module (gnu packages)
+  #:use-module (gnu packages c)
+  #:use-module (gnu packages man))
+
+(define-public harec
+  (let ((revision "1")
+        (commit "f5da14c17f734f0bba5a741997b79d3e65a87712"))
+    (package
+      (name "harec")
+      (version (git-version "0.0.1" revision commit))
+      (source
+        (origin
+          (method git-fetch)
+          (uri (git-reference
+                 (url "https://git.sr.ht/~sircmpwn/harec")
+                 (commit commit)))
+          (file-name (git-file-name name version))
+          (sha256
+            (base32 "1xdf9pdwy5dvxhgvw6hqkpnjl8z76xc413vsnbbqfvwmfing53yn"))))
+      (build-system gnu-build-system)
+      (arguments
+        `(#:phases
+          (modify-phases %standard-phases
+            (add-before 'configure 'setenv
+              (lambda _
+                (setenv "CC" ,(cc-for-target))))
+            (add-after 'configure 'configure-better
+              (lambda* (#:key outputs #:allow-other-keys)
+                (invoke "./configure"
+                        (string-append "--prefix=" (assoc-ref outputs "out")))))
+            (delete 'configure))))
+      (inputs (list qbe scdoc))
+      (synopsis "Bootstrapping compiler for Hare")
+      (description "Hare is a systems programming language designed to be
+simple, stable, and robust.  Hare uses a static type system, manual memory
+management, and a minimal runtime.  It is well-suited to writing operating
+systems, system tools, compilers, networking software, and other low-level,
+high performance tasks.")
+      (home-page "https://git.sr.ht/~sircmpwn/harec")
+      (license license:gpl3))))
+
+
+(define-public hare
+  (let ((revision "1")
+        (commit  "112b75eb56d98c442094966fe59cbf3cd5feb909"))
+    (package
+      (name "hare")
+      (version (git-version "0.0.1" revision commit))
+      (source
+        (origin
+          (method git-fetch)
+          (uri (git-reference
+                 (url "https://git.sr.ht/~sircmpwn/hare")
+                 (commit version)))
+          (file-name (git-file-name name version))
+          (sha256
+            (base32 "0ilnz56757k4v0ggdc2v4xsjw0c944y8r289nfmqhw4hwzsrvb4j"))))
+      (inputs (list scdoc))
+      (propagated-inputs (list qbe harec))
+      (build-system gnu-build-system)
+      (arguments
+        `(#:make-flags `("HARECACHE=./cache"
+                         ,(string-append "PREFIX=" (assoc-ref %outputs "out")))
+          #:phases
+          (modify-phases %standard-phases
+            (add-before 'configure 'configure-make
+              (lambda _
+                ;; NOTE: We are not really using this because overwriting it via
+                ;; `make-flags` is way easier with our tooling.
+                ;; Maybe we should?
+                (copy-file "config.example.mk" "config.mk")))
+            (delete 'configure))))
+      (synopsis "Hare build driver")
+      (description "Hare is a systems programming language designed to be
+simple, stable, and robust.  Hare uses a static type system, manual memory
+management, and a minimal runtime.  It is well-suited to writing operating
+systems, system tools, compilers, networking software, and other low-level,
+high performance tasks.")
+      (home-page "https://git.sr.ht/~sircmpwn/hare")
+      (license license:gpl3))))

base-commit: 917a299831361f253ea664f009176b4bbe06900a
-- 
2.39.2