janet 0.6.0 (new formula)

Closes #40839.

Signed-off-by: FX Coudert <fxcoudert@gmail.com>

Formula/janet.rb

@@ -0,0 +1,22 @@
+class Janet < Formula
+  desc "Dynamic language and bytecode vm"
+  homepage "https://janet-lang.org"
+  url "https://github.com/janet-lang/janet/archive/v0.6.0.tar.gz"
+  sha256 "1226240f8ed7f5faafbff6d93e5802c7959c4b40f9212ac6f020d67ef3aa599e"
+  head "https://github.com/janet-lang/janet.git"
+
+  depends_on "meson" => :build
+  depends_on "ninja" => :build
+
+  def install
+    system "meson", "setup", "build", "--buildtype=release", "--prefix=#{prefix}"
+    cd "build" do
+      system "ninja"
+      system "ninja", "install"
+    end
+  end
+
+  test do
+    assert_equal "12", shell_output("#{bin}/janet -e '(print (+ 5 7))'").strip
+  end
+end