build-system: Add tree-sitter-build-system.

* guix/build-system/tree-sitter.scm: New module.
* guix/build/tree-sitter-build-system.scm: Likewise.
* Makefile.am (MODULES): Add them.
* doc/guix.texi: Document it.

Signed-off-by: Andrew Tropin <andrew@trop.in>

1 files changed, 195 insertions, 0 deletions

diff --git a/guix/build-system/tree-sitter.scm b/guix/build-system/tree-sitter.scm
new file mode 100644
index 0000000000..21c4eb35b2
--- /dev/null
+++ b/guix/build-system/tree-sitter.scm
@@ -0,0 +1,195 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2022 Pierre Langlois <pierre.langlois@gmx.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-system tree-sitter)
+  #:use-module (guix store)
+  #:use-module (guix utils)
+  #:use-module (guix packages)
+  #:use-module (guix gexp)
+  #:use-module (guix monads)
+  #:use-module (guix search-paths)
+  #:use-module (guix build-system)
+  #:use-module (guix build-system gnu)
+  #:use-module (guix build-system node)
+  #:use-module (ice-9 match)
+  #:export (%tree-sitter-build-system-modules
+            tree-sitter-build
+            tree-sitter-build-system))
+
+(define %tree-sitter-build-system-modules
+  ;; Build-side modules imported by default.
+  `((guix build tree-sitter-build-system)
+    ,@%node-build-system-modules))
+
+(define* (lower name
+                #:key source inputs native-inputs outputs system target
+                #:allow-other-keys
+                #:rest arguments)
+  "Return a bag for NAME from the given arguments."
+  (define private-keywords
+    `(#:inputs #:native-inputs #:outputs ,@(if target
+                                               '()
+                                               '(#:target))))
+  (define node
+    (module-ref (resolve-interface '(gnu packages node))
+                'node-lts))
+  (define tree-sitter
+    (module-ref (resolve-interface '(gnu packages tree-sitter))
+                'tree-sitter))
+  (define tree-sitter-cli
+    (module-ref (resolve-interface '(gnu packages tree-sitter))
+                'tree-sitter-cli))
+  ;; Grammars depend on each other via JS modules, which we package into a
+  ;; dedicated js output.
+  (define grammar-inputs
+    (map (match-lambda
+           ((name package)
+            `(,name ,package "js")))
+         inputs))
+  (bag
+    (name name)
+    (system system) (target target)
+    (build-inputs `(,@(if source
+                          `(("source" ,source))
+                          '())
+                    ("node" ,node)
+                    ("tree-sitter-cli" ,tree-sitter-cli)
+                    ,@native-inputs
+                    ,@(if target '() grammar-inputs)
+                    ;; Keep the standard inputs of 'gnu-build-system'.
+                    ,@(if target
+                          (standard-cross-packages target 'host)
+                          '())
+                    ,@(standard-packages)))
+    (host-inputs `(("tree-sitter" ,tree-sitter)
+                   ,@(if target grammar-inputs '())))
+    ;; Keep the standard inputs of 'gnu-buid-system'.
+    (target-inputs (if target
+                       (standard-cross-packages target 'target)
+                       '()))
+    ;; XXX: this is a hack to get around issue #41569.
+    (outputs (match outputs
+               (("out") (cons "js" outputs))
+               (_ outputs)))
+    (build (if target tree-sitter-cross-build tree-sitter-build))
+    (arguments (strip-keyword-arguments private-keywords arguments))))
+
+(define* (tree-sitter-build name inputs
+                            #:key
+                            source
+                            (phases '%standard-phases)
+                            (grammar-directories '("."))
+                            (tests? #t)
+                            (outputs '("out" "js"))
+                            (search-paths '())
+                            (system (%current-system))
+                            (guile #f)
+                            (imported-modules %tree-sitter-build-system-modules)
+                            (modules '((guix build utils)
+                                       (guix build tree-sitter-build-system))))
+  (define builder
+    (with-imported-modules imported-modules
+      #~(begin
+          (use-modules #$@(sexp->gexp modules))
+          (tree-sitter-build #:name #$name
+                             #:source #+source
+                             #:system #$system
+                             #:phases #$phases
+                             #:tests? #$tests?
+                             #:grammar-directories '#$grammar-directories
+                             #:outputs #$(outputs->gexp outputs)
+                             #:search-paths
+                             '#$(sexp->gexp
+                                 (map search-path-specification->sexp
+                                      search-paths))
+                             #:inputs #$(input-tuples->gexp inputs)))))
+
+  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                  system #:graft? #f)))
+    (gexp->derivation name builder
+                      #:system system
+                      #:guile-for-build guile)))
+
+(define* (tree-sitter-cross-build name
+                                  #:key
+                                  target
+                                  build-inputs target-inputs host-inputs
+                                  guile source
+                                  (phases '%standard-phases)
+                                  (grammar-directories '("."))
+                                  (tests? #t)
+                                  (outputs '("out" "js"))
+                                  (search-paths '())
+                                  (native-search-paths '())
+                                  (system (%current-system))
+                                  (build (nix-system->gnu-triplet system))
+                                  (imported-modules
+                                   %tree-sitter-build-system-modules)
+                                  (modules
+                                   '((guix build utils)
+                                     (guix build tree-sitter-build-system))))
+  (define builder
+    (with-imported-modules imported-modules
+      #~(begin
+          (use-modules #$@(sexp->gexp modules))
+
+          (define %build-host-inputs
+            #+(input-tuples->gexp build-inputs))
+
+          (define %build-target-inputs
+            (append #$(input-tuples->gexp host-inputs)
+                    #+(input-tuples->gexp target-inputs)))
+
+          (define %build-inputs
+            (append %build-host-inputs %build-target-inputs))
+
+          (tree-sitter-build #:name #$name
+                             #:source #+source
+                             #:system #$system
+                             #:build #$build
+                             #:target #$target
+                             #:phases #$phases
+                             #:tests? #$tests?
+                             #:grammar-directories '#$grammar-directories
+                             #:outputs #$(outputs->gexp outputs)
+                             #:inputs %build-target-inputs
+                             #:native-inputs %build-host-inputs
+                             #:search-paths '
+                             #$(sexp->gexp
+                                (map search-path-specification->sexp
+                                     search-paths))
+                             #:native-search-paths
+                             '#$(sexp->gexp
+                                 (map
+                                  search-path-specification->sexp
+                                  native-search-paths))))))
+
+  (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+                                                  system #:graft? #f)))
+    (gexp->derivation name builder
+                      #:system system
+                      #:target target
+                      #:guile-for-build guile)))
+
+(define tree-sitter-build-system
+  (build-system
+    (name 'tree-sitter)
+    (description "The Tree-sitter grammar build system")
+    (lower lower)))
+
+;;; tree-sitter.scm ends here