[bug#49946] [PATCH 07/31] gnu: Add tree-sitter.

[Pierre Langlois]

* gnu/packages/tree-sitter.scm: New file.
* gnu/local.mk (GNU_SYSTEM_MODULES): Register it.
---
 gnu/local.mk                 |  1 +
 gnu/packages/tree-sitter.scm | 98 ++++++++++++++++++++++++++++++++++++
 2 files changed, 99 insertions(+)
 create mode 100644 gnu/packages/tree-sitter.scm

diff --git a/gnu/local.mk b/gnu/local.mk
index 3f09b167b1..3763df0821 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -559,6 +559,7 @@ GNU_SYSTEM_MODULES =                                \
   %D%/packages/tls.scm                         \
   %D%/packages/tmux.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..2c749dc0a8
--- /dev/null
+++ b/gnu/packages/tree-sitter.scm
@@ -0,0 +1,98 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2021 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 licenses) #:prefix license:)
+  #:use-module (guix build-system cargo)
+  #:use-module (guix git-download)
+  #:use-module (guix packages)
+  #:use-module (gnu packages crates-io)
+  #:use-module (gnu packages crates-graphics))
+
+(define-public tree-sitter
+  (package
+    (name "tree-sitter")
+    (version "0.19.5")
+    (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
+          "1qmb0sva28zv6r3c3j7xs9pc8bpwwhkb9vxxndw2zbdn9wkvmbmn"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(;; Running test requires downloading fixtures, see the
+       ;; script/fetch-fixtures script.
+       #:tests? #f
+       ;; FIXME: Installing the sources for the tree-sitter Rust bindings
+       ;; doesn't work out of the box due to tree-sitter having multiple
+       ;; Rust packages in the same repository (bindings and CLI).
+       #:install-source? #f
+       #:cargo-inputs
+       (("rust-ansi-term" ,rust-ansi-term-0.12)
+        ("rust-atty" ,rust-atty-0.2)
+        ("rust-clap" ,rust-clap-2)
+        ("rust-difference" ,rust-difference-2)
+        ("rust-dirs" ,rust-dirs-3)
+        ("rust-html-escape" ,rust-html-escape-0.2)
+        ("rust-libloading" ,rust-libloading-0.7)
+        ("rust-smallbitvec" ,rust-smallbitvec-2)
+        ("rust-spin" ,rust-spin-0.7)
+        ("rust-tiny-http" ,rust-tiny-http-0.8)
+        ("rust-walkdir" ,rust-walkdir-2)
+        ("rust-webbrowser" ,rust-webbrowser-0.5)
+        ("rust-which" ,rust-which-4))
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'delete-cargo.lock
+           (lambda _ (delete-file "Cargo.lock")))
+         (add-after 'build 'build-lib
+           (lambda _ (invoke "make")))
+         (replace 'install
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let* ((out (assoc-ref outputs "out"))
+                    (bin (string-append out "/bin"))
+                    (lib (string-append out "/lib")))
+               (mkdir-p bin)
+               (install-file "target/release/tree-sitter" bin)
+               (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 @command{tree-sitter} tool as well as the runtime
+library.")
+    (license license:expat)))
--
2.32.0