New package: tree-sitter (#28110)

var/spack/repos/builtin/packages/tree-sitter/package.py

@@ -0,0 +1,23 @@
+# Copyright 2013-2021 Lawrence Livermore National Security, LLC and other
+# Spack Project Developers. See the top-level COPYRIGHT file for details.
+#
+# SPDX-License-Identifier: (Apache-2.0 OR MIT)
+
+
+from spack import *
+
+
+class TreeSitter(MakefilePackage):
+    """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."""
+
+    homepage = "https://tree-sitter.github.io/tree-sitter/"
+    url      = "https://github.com/tree-sitter/tree-sitter/archive/refs/tags/v0.20.1.tar.gz"
+
+    maintainers = ['albestro']
+
+    version('0.20.1', sha256='12a3f7206af3028dbe8a0de50d8ebd6d7010bf762db918acae76fc7585f1258d')
+
+    def edit(self, spec, prefix):
+        env['PREFIX'] = prefix