build-system: Add ‘composer-build-system’.

* guix/build-system/composer.scm: New file.
* guix/build/composer-build-system.scm: New file.
* gnu/packages/aux-files/findclass.php: New file.
* Makefile.am: Add them.
* doc/guix.texi (Build Systems): Document it.

Co-authored-by: Julien Lepiller <julien@lepiller.eu>
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
Change-Id: Ie6a05b42ff04d3ad774a0a20278a77e4820bb8f6

1 files changed, 165 insertions, 0 deletions

diff --git a/guix/build-system/composer.scm b/guix/build-system/composer.scm
new file mode 100644
index 0000000000..2bb807e614
--- /dev/null
+++ b/guix/build-system/composer.scm
@@ -0,0 +1,165 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2019 Julien Lepiller <julien@lepiller.eu>
+;;;
+;;; 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-system composer)
+  #:use-module (guix store)
+  #:use-module (guix utils)
+  #:use-module (guix derivations)
+  #:use-module (guix search-paths)
+  #:use-module (guix build-system)
+  #:use-module (guix build-system gnu)
+  #:use-module (guix gexp)
+  #:use-module (guix packages)
+  #:use-module (gnu packages)
+  #:use-module (ice-9 match)
+  #:use-module (srfi srfi-1)
+  #:export (%composer-build-system-modules
+            lower
+            composer-build
+            composer-build-system))
+
+;; Commentary:
+;;
+;; Standard build procedure for PHP packages using Composer. This is implemented
+;; as an extension of `gnu-build-system'.
+;;
+;; Code:
+
+(define (default-php)
+  "Return the default PHP package."
+
+  ;; Do not use `@' to avoid introducing circular dependencies.
+  (let ((module (resolve-interface '(gnu packages php))))
+    (module-ref module 'php)))
+
+(define (default-findclass)
+  "Return the default findclass script."
+  (search-auxiliary-file "findclass.php"))
+
+(define (default-composer-classloader)
+  "Return the default composer-classloader package."
+
+  ;; Do not use `@' to avoid introducing circular dependencies.
+  (let ((module (resolve-interface '(gnu packages php-xyz))))
+    (module-ref module 'composer-classloader)))
+
+(define %composer-build-system-modules
+  ;; Build-side modules imported by default.
+  `((guix build composer-build-system)
+    (guix build union)
+    (json)
+    (json builder)
+    (json parser)
+    (json record)
+    ,@%gnu-build-system-modules))
+
+(define* (lower name
+                #:key source inputs native-inputs outputs system target
+                (php (default-php))
+                (composer-classloader (default-composer-classloader))
+                (findclass (default-findclass))
+                #:allow-other-keys
+                #:rest arguments)
+  "Return a bag for NAME."
+  (define private-keywords
+    '(#:target #:php #:composer-classloader #:findclass #:inputs #:native-inputs))
+
+  (and (not target)                               ;XXX: no cross-compilation
+       (bag
+         (name name)
+         (system system)
+         (host-inputs `(,@(if source
+                              `(("source" ,source))
+                              '())
+                        ,@inputs
+
+                        ;; Keep the standard inputs of 'gnu-build-system'.
+                        ,@(standard-packages)))
+         (build-inputs `(("php" ,php)
+                         ("findclass.php" ,findclass)
+			 ("composer-classloader" ,composer-classloader)
+                         ,@native-inputs))
+         (outputs outputs)
+         (build composer-build)
+         (arguments (strip-keyword-arguments private-keywords arguments)))))
+
+(define* (composer-build name inputs
+                         #:key
+                         guile source
+                         (outputs '("out"))
+                         (configure-flags ''())
+                         (search-paths '())
+                         (out-of-source? #t)
+                         (composer-file "composer.json")
+                         (tests? #t)
+                         (test-target "test")
+                         (test-flags ''())
+                         (install-target "install")
+                         (validate-runpath? #t)
+                         (patch-shebangs? #t)
+                         (strip-binaries? #t)
+                         (strip-flags #~'("--strip-debug"))
+                         (strip-directories #~'("lib" "lib64" "libexec"
+                                               "bin" "sbin"))
+                         (phases '(@ (guix build composer-build-system)
+                                     %standard-phases))
+                         (system (%current-system))
+                         (imported-modules %composer-build-system-modules)
+                         (modules '((guix build composer-build-system)
+                                    (guix build utils))))
+  "Build SOURCE using PHP, and with INPUTS. This assumes that SOURCE provides
+a 'composer.json' file as its build system."
+  (define builder
+    (with-imported-modules imported-modules
+      #~(begin
+          (use-modules #$@(sexp->gexp modules))
+
+          #$(with-build-variables inputs outputs
+              #~(composer-build
+                 #:source #$source
+                 #:system #$system
+                 #:outputs %outputs
+                 #:inputs %build-inputs
+                 #:search-paths '#$(map search-path-specification->sexp
+                                        search-paths)
+                 #:phases #$phases
+                 #:out-of-source? #$out-of-source?
+                 #:composer-file #$composer-file
+                 #:tests? #$tests?
+                 #:test-target #$test-target
+                 #:test-flags #$test-flags
+                 #:install-target #$install-target
+                 #:validate-runpath? #$validate-runpath?
+                 #:patch-shebangs? #$patch-shebangs?
+                 #:strip-binaries? #$strip-binaries?
+                 #:strip-flags #$strip-flags
+                 #:strip-directories #$strip-directories)))))
+
+  (gexp->derivation name builder
+                    #:system system
+                    #:target #f
+                    #:graft? #f
+                    #:guile-for-build guile))
+
+(define composer-build-system
+  (build-system
+    (name 'composer)
+    (description "The standard Composer build system")
+    (lower lower)))
+
+;;; composer.scm ends here