gnu: Add clojure-tools-cli.

* gnu/packages/clojure.scm (clojure-tools-cli): New variable.

gnu/packages/clojure.scm

@@ -2,6 +2,7 @@
 ;;; Copyright © 2018 Alex Vong <alexvong1995@gmail.com>
 ;;; Copyright © 2018 Pierre Neidhardt <mail@ambrevar.xyz>
 ;;; Copyright © 2019 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2020 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -296,3 +297,27 @@ tree.
     (description "Tools for writing macros.")
     (home-page "https://github.com/clojure/tools.macro")
     (license license:epl1.0)))
+
+(define-public clojure-tools-cli
+  (package
+    (name "clojure-tools-cli")
+    (version "0.4.2")
+    (home-page "https://github.com/clojure/tools.cli")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url home-page)
+                    (commit (string-append "tools.cli-" version))))
+              (file-name (git-file-name name version))
+              (sha256
+               (base32 "1yqlm8lwbcjm0dp032z7vzc4bdlmc4jixznvf4adsqhvqw85hvj2"))))
+    (build-system clojure-build-system)
+    (arguments
+     '(#:source-dirs '("src/main/clojure/")
+       #:test-dirs '("src/test/clojure/")
+       #:doc-dirs '()))
+    (synopsis "Clojure library for working with command-line arguments")
+    (description
+     "The @code{tools.cli} library provides Clojure programmers with tools to
+work with command-line arguments.")
+    (license license:epl1.0)))