summaryrefslogtreecommitdiff
path: root/guix/build
diff options
context:
space:
mode:
authorPierre-Henry Fröhring <contact@phfrohring.com>2023-12-10 14:03:54 +0100
committerLiliana Marie Prikler <liliana.prikler@gmail.com>2023-12-17 22:22:30 +0100
commite0e6d659b5d798068b9b03860cc2d3e391f6b74f (patch)
tree1a5bb1ee3f7eef82fc97c8c16b55ab4249986608 /guix/build
parent7b826d5734ca535c853142b8890a95407accf9ad (diff)
build-system: Add mix-build-system.
* guix/build-system/mix.scm: New file. * guix/build/mix-build-system.scm: New file. Change-Id: I8066d00f7ada4a384621bf541e679bc512e93435 Signed-off-by: Liliana Marie Prikler <liliana.prikler@gmail.com>
Diffstat (limited to 'guix/build')
-rw-r--r--guix/build/mix-build-system.scm161
1 files changed, 161 insertions, 0 deletions
diff --git a/guix/build/mix-build-system.scm b/guix/build/mix-build-system.scm
new file mode 100644
index 0000000000..fe2e36d184
--- /dev/null
+++ b/guix/build/mix-build-system.scm
@@ -0,0 +1,161 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2023 Pierre-Henry Fröhring <contact@phfrohring.com>
+;;;
+;;; 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/>.
+
+;; Commentary:
+;;
+;; Code:
+
+(define-module (guix build mix-build-system)
+ #:use-module ((guix build gnu-build-system) #:prefix gnu:)
+ #:use-module (guix build utils)
+ #:use-module (ice-9 ftw)
+ #:use-module (ice-9 match)
+ #:use-module (ice-9 regex)
+ #:use-module (ice-9 string-fun)
+ #:use-module (srfi srfi-1)
+ #:use-module (srfi srfi-26)
+ #:use-module (srfi srfi-71)
+ #:export (mix-build
+ %standard-phases))
+
+;; The Elixir version is constant as soon as it is computable from the current
+;; execution. It is a X.Y string where X and Y are respectively the major and
+;; minor version number of the Elixir used in the build.
+(define %elixir-version (make-parameter "X.Y"))
+
+(define* (elixir-libdir path #:optional (version (%elixir-version)))
+ "Return the path where all libraries under PATH for a specified Elixir
+VERSION are installed."
+ (string-append path "/lib/elixir/" version))
+
+(define* (strip-prefix name #:optional (prefix "elixir-"))
+ "Return NAME without the prefix PREFIX."
+ (if (string-prefix? prefix name)
+ (string-drop name (string-length prefix))
+ name))
+
+(define (mix-build-dir mix-build-root mix-env)
+ "Return the directory where build artifacts are to be installed according to
+en environment MIX-ENV in the current directory. MIX-BUILD-ROOT depends on the
+package arguments. See: https://hexdocs.pm/mix/1.15/Mix.html#module-environment-variables"
+ (string-append mix-build-root "/" mix-env "/lib"))
+
+(define (elixir-version inputs)
+ "Return an X.Y string where X and Y are respectively the major and minor version number of PACKAGE.
+Example: /gnu/store/…-elixir-1.14.0 → 1.14"
+ ((compose
+ (cute string-join <> ".")
+ (cute take <> 2)
+ (cute string-split <> #\.)
+ strip-prefix
+ strip-store-file-name)
+ (assoc-ref inputs "elixir")))
+
+(define* (unpack #:key source mix-path #:allow-other-keys)
+ "Unpack SOURCE in the working directory, and change directory within the
+source. When SOURCE is a directory, copy it in a sub-directory of the current
+working directory."
+ (let ((gnu-unpack (assoc-ref gnu:%standard-phases 'unpack)))
+ (gnu-unpack #:source source)
+ (when (file-exists? "contents.tar.gz")
+ (invoke "tar" "xvf" "contents.tar.gz"))))
+
+(define (list-directories dir)
+ "List absolute paths of directories directly under the directory DIR."
+ (map (cute string-append dir "/" <>)
+ (scandir dir (lambda (filename)
+ (and (not (member filename '("." "..")))
+ (directory-exists? (string-append dir "/" filename)))))))
+
+(define* (set-mix-env #:key inputs mix-path mix-exs #:allow-other-keys)
+ "Set environment variables.
+See: https://hexdocs.pm/mix/1.15.7/Mix.html#module-environment-variables"
+ (setenv "MIX_ARCHIVES" "archives")
+ (setenv "MIX_BUILD_ROOT" "_build")
+ (setenv "MIX_DEPS_PATH" "deps")
+ (setenv "MIX_EXS" mix-exs)
+ (setenv "MIX_HOME" (getcwd))
+ (setenv "MIX_PATH" (or mix-path ""))
+ (setenv "MIX_REBAR3" (string-append (assoc-ref inputs "rebar3") "/bin/rebar3")))
+
+(define* (set-elixir-version #:key inputs #:allow-other-keys)
+ "Store the version number of the Elixir input in a parameter."
+ (%elixir-version (elixir-version inputs))
+ (format #t "Elixir version: ~a~%" (%elixir-version)))
+
+(define* (build #:key mix-environments #:allow-other-keys)
+ "Builds the Mix project."
+ (for-each (lambda (mix-env)
+ (setenv "MIX_ENV" mix-env)
+ (invoke "mix" "compile" "--no-deps-check"))
+ mix-environments))
+
+(define* (check #:key (tests? #t) #:allow-other-keys)
+ "Test the Mix project."
+ (if tests?
+ (invoke "mix" "test" "--no-deps-check")
+ (format #t "tests? = ~a~%" tests?)))
+
+(define* (remove-mix-dirs . _)
+ "Remove all .mix/ directories.
+We do not want to copy them to the installation directory."
+ (for-each delete-file-recursively
+ (find-files "." (file-name-predicate "\\.mix$") #:directories? #t)))
+
+(define (package-name->elixir-name name+ver)
+ "Convert the Guix package NAME-VER to the corresponding Elixir name-version
+format. Example: elixir-a-pkg-1.2.3 -> a_pkg"
+ ((compose
+ (cute string-join <> "_")
+ (cute drop-right <> 1)
+ (cute string-split <> #\-))
+ (strip-prefix name+ver)))
+
+(define* (install #:key
+ inputs
+ outputs
+ name
+ build-per-environment
+ #:allow-other-keys)
+ "Install build artifacts in the store."
+ (let* ((lib-name (package-name->elixir-name name))
+ (lib-dir (string-append (elixir-libdir (assoc-ref outputs "out")) "/" lib-name))
+ (root (getenv "MIX_BUILD_ROOT"))
+ (env (if build-per-environment "prod" "shared")))
+ (mkdir-p lib-dir)
+ (copy-recursively (string-append (mix-build-dir root env) "/" lib-name) lib-dir
+ #:follow-symlinks? #t)))
+
+(define %standard-phases
+ (modify-phases gnu:%standard-phases
+ (delete 'bootstrap)
+ (delete 'configure)
+ (add-after 'install-locale 'set-mix-env set-mix-env)
+ (add-after 'set-mix-env 'set-elixir-version set-elixir-version)
+ (replace 'unpack unpack)
+ (replace 'build build)
+ (replace 'check check)
+ (add-before 'install 'remove-mix-dirs remove-mix-dirs)
+ (replace 'install install)))
+
+(define* (mix-build #:key inputs (phases %standard-phases)
+ #:allow-other-keys #:rest args)
+ "Build the given Mix package, applying all of PHASES in order."
+ (apply gnu:gnu-build #:inputs inputs #:phases phases args))
+
+;;; mix-build-system.scm ends here