[bug#49946] [PATCH v4 04/31] gnu: Add tree-sitter.

[Pierre Langlois]

* gnu/package/tree-sitter.scm: New file.
* gnu/local.mk (GNU_SYSTEM_MODULES): Register it.
---
 gnu/local.mk                 |  1 +
 gnu/packages/tree-sitter.scm | 83 ++++++++++++++++++++++++++++++++++++
 2 files changed, 84 insertions(+)
 create mode 100644 gnu/packages/tree-sitter.scm

diff --git a/gnu/local.mk b/gnu/local.mk
index 433467ee39..97ab160c3c 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -584,6 +584,7 @@ GNU_SYSTEM_MODULES =                                \
   %D%/packages/tmux.scm                                \
   %D%/packages/toolkits.scm                    \
   %D%/packages/tor.scm                         \
+  %D%/packages/tree-sitter.scm                 \
   %D%/packages/tv.scm                          \
   %D%/packages/uglifyjs.scm                    \
   %D%/packages/uml.scm                         \
diff --git a/gnu/packages/tree-sitter.scm b/gnu/packages/tree-sitter.scm
new file mode 100644
index 0000000000..10a3a6e57c
--- /dev/null
+++ b/gnu/packages/tree-sitter.scm
@@ -0,0 +1,83 @@
+;;; 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 (gnu packages tree-sitter)
+  #:use-module (guix gexp)
+  #:use-module ((guix licenses) #:prefix license:)
+  #:use-module (guix build-system gnu)
+  #:use-module (guix git-download)
+  #:use-module (guix packages)
+  #:use-module (guix utils)
+  #:use-module (gnu packages icu4c))
+
+(define-public tree-sitter
+  (package
+    (name "tree-sitter")
+    (version "0.20.4")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://github.com/tree-sitter/tree-sitter";)
+                    (commit (string-append "v" version))))
+              (file-name (git-file-name name version))
+              (sha256
+               (base32
+                "1yldgdbf3l5l4ki52abdf81nwkcbvg219gwr3ydcjwfsg7hf7zhz"))
+              (modules '((guix build utils)))
+              (snippet
+               '(begin
+                  (delete-file-recursively "lib/src/unicode")))))
+    (inputs
+     (list icu4c))
+    (build-system gnu-build-system)
+    (arguments
+     (list
+      #:tests? #f ;No check target.
+      #:phases
+      #~(modify-phases %standard-phases
+          (delete 'configure)
+          (add-before 'build 'set-cc
+            (lambda _
+              (setenv "CC"
+                      #$(cc-for-target))))
+          (replace 'install
+            (lambda* (#:key outputs #:allow-other-keys)
+              (let* ((out (assoc-ref outputs "out")) (lib (string-append
+                                                           out "/lib")))
+                (setenv "PREFIX" out)
+                (invoke "make" "install")))))))
+    (home-page "https://tree-sitter.github.io/tree-sitter/";)
+    (synopsis "Incremental parsing system for programming tools")
+    (description
+     "Tree-sitter is a parser generator tool and an incremental
+parsing library.  It can build a concrete syntax tree for a source file and
+efficiently update the syntax tree as the source file is edited.
+
+Tree-sitter aims to be:
+
+@enumerate
+@item General enough to parse any programming language.
+@item Fast enough to parse on every keystroke in a text editor.
+@item Robust enough to provide useful results even in the presence of syntax
+errors.
+@item Dependency-free so that the runtime library (which is written in pure C)
+can be embedded in any application.
+@end enumerate
+
+This package includes the @code{libtree-sitter} runtime library.")
+    (license license:expat)))
--
2.34.0