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-;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2016, 2018 Ricardo Wurmus <rekado@elephly.net>
-;;; Copyright © 2019 Björn Höfling <bjoern.hoefling@bjoernhoefling.de>
-;;; Copyright © 2020 Hartmut Goebel <h.goebel@crazy-compilers.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/>.
-
-(define-module (guix build rebar3-build-system)
- #:use-module ((guix build gnu-build-system) #:prefix gnu:)
- #:use-module ((guix build utils) #:hide (delete))
- #:use-module (ice-9 match)
- #:use-module (ice-9 ftw)
- #:use-module (srfi srfi-1)
- #:use-module (srfi srfi-26)
- #:export (%standard-phases
- rebar3-build))
-
-;;
-;; Builder-side code of the standard build procedure for Erlang packages using
-;; rebar3.
-;;
-;; TODO: Think about whether bindir ("ebin"), libdir ("priv") and includedir
-;; "(include") need to be configurable
-
-(define %erlang-libdir "/lib/erlang/lib")
-
-(define* (erlang-depends #:key inputs #:allow-other-keys)
- (define input-directories
- (match inputs
- (((_ . dir) ...)
- dir)))
- (mkdir-p "_checkouts")
-
- (for-each
- (lambda (input-dir)
- (let ((elibdir (string-append input-dir %erlang-libdir)))
- (when (directory-exists? elibdir)
- (for-each
- (lambda (dirname)
- (symlink (string-append elibdir "/" dirname)
- (string-append "_checkouts/" dirname)))
- (list-directories elibdir)))))
- input-directories)
- #t)
-
-(define* (unpack #:key source #: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."
- ;; archives from hexpm typicalls do not contain a directory level
- ;; TODO: Check if archive contains a directory level
- (mkdir "source")
- (chdir "source")
- (if (file-is-directory? source)
- (begin
- ;; Preserve timestamps (set to the Epoch) on the copied tree so that
- ;; things work deterministically.
- (copy-recursively source "."
- #:keep-mtime? #t))
- (begin
- (if (string-suffix? ".zip" source)
- (invoke "unzip" source)
- (invoke "tar" "xvf" source))))
- #t)
-
-(define* (build #:key (make-flags '()) (build-target "compile")
- #:allow-other-keys)
- (apply invoke `("rebar3" ,build-target ,@make-flags)))
-
-(define* (check #:key target (make-flags '()) (tests? (not target))
- (test-target "eunit")
- #:allow-other-keys)
- (if tests?
- (apply invoke `("rebar3" ,test-target ,@make-flags))
- (format #t "test suite not run~%"))
- #t)
-
-(define (erlang-package? name)
- "Check if NAME correspond to the name of an Erlang package."
- (string-prefix? "erlang-" name))
-
-(define (package-name-version->erlang-name name+ver)
- "Convert the Guix package NAME-VER to the corresponding Erlang name-version
-format. Essentially drop the prefix used in Guix and replace dashes by
-underscores."
- (let* ((name- (package-name->name+version name+ver)))
- (string-join
- (string-split
- (if (erlang-package? name-) ; checks for "erlang-" prefix
- (string-drop name- (string-length "erlang-"))
- name-)
- #\-)
- "_")))
-
-(define (list-directories directory)
- "Return file names of the sub-directory of DIRECTORY."
- (scandir directory
- (lambda (file)
- (and (not (member file '("." "..")))
- (file-is-directory? (string-append directory "/" file))))))
-
-(define* (install #:key name outputs
- (pkg-name (package-name-version->erlang-name name))
- #:allow-other-keys)
- (let* ((out (assoc-ref outputs "out"))
- (build-dir "_build/default/lib")
- (pkg-dir (string-append out %erlang-libdir "/" pkg-name)))
- (for-each
- (lambda (pkg)
- (for-each
- (lambda (dirname)
- (let ((src-dir (string-append build-dir "/" pkg "/" dirname))
- (dst-dir (string-append pkg-dir "/" dirname)))
- (when (file-exists? src-dir)
- (copy-recursively src-dir dst-dir #:follow-symlinks? #t))
- (false-if-exception
- (delete-file (string-append dst-dir "/.gitignore")))))
- '("ebin" "include" "priv")))
- (list-directories build-dir))
- (false-if-exception
- (delete-file (string-append pkg-dir "/priv/Run-eunit-loop.expect")))
- #t))
-
-(define %standard-phases
- (modify-phases gnu:%standard-phases
- (replace 'unpack unpack)
- (delete 'bootstrap)
- (delete 'configure)
- (add-before 'build 'erlang-depends erlang-depends)
- (replace 'build build)
- (replace 'check check)
- (replace 'install install)))
-
-(define* (rebar3-build #:key inputs (phases %standard-phases)
- #:allow-other-keys #:rest args)
- "Build the given Erlang package, applying all of PHASES in order."
- (apply gnu:gnu-build #:inputs inputs #:phases phases args))