[PATCH] gnu: Add clojure.

[Alex Vong]

Hi everyone,

This patch adds clojure to guix. I have been interested in clojure's
syntax for vector [] and hash-map {} for a while, after watching the
introduction of clojure to lisper video. So, I decide to package it for
guix! Note that I follow the example in ldc and download tarballs needed
to run the tests. I have also used pandoc to build markdown files to
html.


Things I want to do but don't know if I should:

Should I add old version of clojure as well? Also, I have tried further
compile the jar to native executable using gcj. I think it works
although offically gcj supports up to java 1.5 while clojure is written
using java 1.6. The native executable takes 0.5s to 0.6s to start while
  time java -cp "$HOME/.guix-profile/share/java/clojure-1.8.0.jar" \    
            clojure.main --help'
takes 1 to 1.2 s to start on my laptop. Should we provide clojure-gcj
package?

Cheers,
Alex

>From 4afe3af6cbc36956a6c9c16d76b52499ffc4a8c2 Mon Sep 17 00:00:00 2001
From: Alex Vong <address@hidden>
Date: Wed, 24 Feb 2016 12:43:36 +0800
Subject: [PATCH] gnu: Add clojure.

* gnu/packages/java.scm (clojure): New variable.
---
 gnu/packages/java.scm | 202 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 202 insertions(+)

diff --git a/gnu/packages/java.scm b/gnu/packages/java.scm
index ee987fc..367e392 100644
--- a/gnu/packages/java.scm
+++ b/gnu/packages/java.scm
@@ -1,6 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2015 Ricardo Wurmus <address@hidden>
 ;;; Copyright © 2016 Leo Famulari <address@hidden>
+;;; Copyright © 2016 Alex Vong <address@hidden>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -39,6 +40,7 @@
   #:use-module (gnu packages ghostscript) ;lcms
   #:use-module (gnu packages gnome)
   #:use-module (gnu packages gtk)
+  #:use-module (gnu packages haskell)
   #:use-module (gnu packages image)
   #:use-module (gnu packages linux) ;alsa
   #:use-module (gnu packages wget)
@@ -133,6 +135,206 @@ is implemented.")
               license:mpl2.0
               license:lgpl2.1+))))
 
+(define-public clojure-1.8
+  (package
+    (name "clojure")
+    (version "1.8.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri
+        (string-append "http://repo1.maven.org/maven2/org/clojure/clojure/";
+                       version "/clojure-" version ".zip"))
+       (sha256
+        (base32 "1nip095fz5c492sw15skril60i1vd21ibg6szin4jcvyy3xr6cym"))))
+    (build-system gnu-build-system)
+    (arguments
+     `(#:modules
+       ((guix build gnu-build-system)
+        (guix build utils)
+        (ice-9 ftw)
+        (ice-9 regex)
+        (srfi srfi-1)
+        (srfi srfi-26))
+       #:phases
+       (modify-phases %standard-phases
+         (delete 'configure)
+         (replace 'unpack
+           (lambda _
+             (and (mkdir "clojure/")
+                  (zero? (system* "unzip"
+                                  "-d" "clojure/"
+                                  (assoc-ref %build-inputs "source")))
+                  (chdir "clojure/"))))
+         (add-after 'unpack 'remove-jar
+           ;; Remove the distributed jar binaries.
+           (lambda _
+             (for-each delete-file
+                       (find-files "./" ".*\\.jar"))
+             #t))
+         (add-after 'remove-jar 'unpack-submodule-sources
+           (lambda* (#:key inputs #:allow-other-keys)
+             (let ((unpack
+                    (lambda (src-name)
+                      (and (mkdir src-name)
+                           (with-directory-excursion src-name
+                             (zero? (system* "tar"
+                                             "zxvf"
+                                             (assoc-ref inputs src-name)
+                                             "--strip-components=1"))))))
+                   (copy (lambda (src-name)
+                           (copy-recursively
+                            (string-append src-name "/src/main/clojure/")
+                            (string-append "clojure-" ,version "/src/clj/")))))
+               (every (lambda (src)
+                        (begin (unpack src)
+                               (copy src)))
+                      '("data-generators-src" "java-classpath-src"
+                        "test-check-src" "test-generative-src"
+                        "tools-namespace-src" "tools-reader-src")))))
+         (replace 'build
+           (lambda* (#:key inputs outputs #:allow-other-keys)
+             (setenv "JAVA_HOME" (assoc-ref inputs "jdk"))
+             (chdir (string-append "clojure-" ,version))
+             (zero? (system* "ant" "jar"))))
+         (add-after 'build 'build-doc
+           (lambda* (#:key inputs outputs #:allow-other-keys)
+             (let* ((markdown-ext-regex "(.*)\\.(md|markdown|txt)")
+                    (markdown->html (lambda (src-name)
+                                      (zero? (system*
+                                              "pandoc"
+                                              "-o" (regexp-substitute/global
+                                                    #f
+                                                    markdown-ext-regex
+                                                    src-name
+                                                    1 ".html")
+                                              "-f" "markdown_github"
+                                              "-t" "html"
+                                              src-name)))))
+               (every markdown->html (find-files "./" markdown-ext-regex)))))
+         (replace 'check
+           (lambda* (#:key inputs outputs #:allow-other-keys)
+             (setenv "JAVA_HOME" (assoc-ref inputs "jdk"))
+             (zero? (system* "ant" "test"))))
+         (replace 'install
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let ((java-dir (string-append (assoc-ref outputs "out")
+                                            "/share/java/")))
+               ;; Do not install clojure.jar to avoid collisions.
+               (install-file (string-append "clojure-" ,version ".jar")
+                             java-dir)
+               #t)))
+         (add-after 'install 'install-doc
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let ((doc-dir (string-append (assoc-ref outputs "out")
+                                           "/share/doc/clojure/"))
+                   (copy-file-to-dir (lambda (file dir)
+                                       (copy-file file (string-append dir
+                                                                      file)))))
+               (for-each delete-file
+                         (find-files "doc/clojure/" ".*\\.(md|markdown|txt)"))
+               (copy-recursively "doc/clojure/" doc-dir)
+               (for-each (cut copy-file-to-dir <> doc-dir)
+                         (filter (cut string-match ".*\\.(html|txt)" <>)
+                                 (scandir "./")))
+               #t))))))
+    (native-inputs
+     `(("ant" ,ant)
+       ("ghc-pandoc" ,ghc-pandoc)
+       ("jdk" ,icedtea "jdk")
+       ("unzip" ,unzip)
+       ("data-generators-src"
+        ;; The native-inputs below are needed to run the tests.
+        ,(let ((version "0.1.2"))
+           (origin
+             (method url-fetch)
+             (uri (string-append
+                   "https://github.com";
+                   "/clojure/data.generators/archive/data.generators-"
+                   version ".tar.gz"))
+             (sha256
+              (base32
+               "0kki093jp4ckwxzfnw8ylflrfqs8b1i1wi9iapmwcsy328dmgzp1")))))
+       ("java-classpath-src"
+        ,(let ((version "0.2.3"))
+           (origin
+             (method url-fetch)
+             (uri
+              (string-append "https://github.com";
+                             "/clojure/java.classpath/archive/java.classpath-"
+                             version ".tar.gz"))
+             (sha256
+              (base32
+               "0sjymly9xh1lkvwn5ygygpsfwz4dabblnlq0c9bx76rkvq62fyng")))))
+       ("test-check-src"
+        ,(let ((version "0.9.0"))
+           (origin
+             (method url-fetch)
+             (uri
+              (string-append "https://github.com";
+                             "/clojure/test.check/archive/test.check-"
+                             version ".tar.gz"))
+             (sha256
+              (base32
+               "0p0mnyhr442bzkz0s4k5ra3i6l5lc7kp6ajaqkkyh4c2k5yck1md")))))
+       ("test-generative-src"
+        ,(let ((version "0.5.2"))
+           (origin
+             (method url-fetch)
+             (uri (string-append
+                   "https://github.com";
+                   "/clojure/test.generative/archive/test.generative-"
+                   version ".tar.gz"))
+             (sha256
+              (base32
+               "1pjafy1i7yblc7ixmcpfq1lfbyf3jaljvkgrajn70sws9xs7a9f8")))))
+       ("tools-namespace-src"
+        ,(let ((version "0.2.11"))
+           (origin
+             (method url-fetch)
+             (uri (string-append
+                   "https://github.com";
+                   "/clojure/tools.namespace/archive/tools.namespace-"
+                   version ".tar.gz"))
+             (sha256
+              (base32
+               "10baak8v0hnwz2hr33bavshm7y49mmn9zsyyms1dwjz45p5ymhy0")))))
+       ("tools-reader-src"
+        ,(let ((version "0.10.0"))
+           (origin
+             (method url-fetch)
+             (uri
+              (string-append "https://github.com";
+                             "/clojure/tools.reader/archive/tools.reader-"
+                             version ".tar.gz"))
+             (sha256
+              (base32
+               "09i3lzbhr608h76mhdjm3932gg9xi8sflscla3c5f0v1nkc28cnr")))))))
+    (home-page "https://clojure.org/";)
+    (synopsis "Lisp dialect running on the JVM")
+    (description "Clojure is a dynamic, general-purpose programming language,
+combining the approachability and interactive development of a scripting
+language with an efficient and robust infrastructure for multithreaded
+programming. Clojure is a compiled language, yet remains completely dynamic
+– every feature supported by Clojure is supported at runtime. Clojure provides
+ easy access to the Java frameworks, with optional type hints and type
+inference, to ensure that calls to Java can avoid reflection.
+
+Clojure is a dialect of Lisp, and shares with Lisp the code-as-data philosophy
+and a powerful macro system. Clojure is predominantly a functional programming
+language, and features a rich set of immutable, persistent data structures.
+When mutable state is needed, Clojure offers a software transactional memory
+system and reactive Agent system that ensure clean, correct, multithreaded
+designs.")
+    ;; Clojure is licensed under EPL1.0
+    ;; ASM bytecode manipulation library is licensed under BSD-3
+    ;; Guava Murmur3 hash implementation is licensed under under APL2.0
+    ;;
+    ;; See readme.html or readme.txt for details.
+    (license (list license:epl1.0
+                   license:bsd-3
+                   license:asl2.0))))
+
 (define-public ant
   (package
     (name "ant")
-- 
2.6.3