gnu: Add ruby-puma.

gnu/packages/ruby.scm (ruby-puma): New variable.
gnu/packages/patches/ruby-puma-ignore-broken-test.patch: New file.
gnu/local.mk (dist_patch_DATA): Add it.

gnu/local.mk

@@ -755,6 +755,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/rpm-CVE-2014-8118.patch			\
   %D%/packages/patches/rsem-makefile.patch			\
   %D%/packages/patches/ruby-concurrent-ignore-broken-test.patch	\
+  %D%/packages/patches/ruby-puma-ignore-broken-test.patch       \
   %D%/packages/patches/ruby-symlinkfix.patch                    \
   %D%/packages/patches/ruby-tzinfo-data-ignore-broken-test.patch\
   %D%/packages/patches/rush-CVE-2013-6889.patch			\

gnu/packages/patches/ruby-puma-ignore-broken-test.patch

@@ -0,0 +1,13 @@
+diff --git a/test/test_integration.rb b/test/test_integration.rb
+index d9b189c..6e21180 100644
+--- a/test/test_integration.rb
++++ b/test/test_integration.rb
+@@ -115,7 +115,7 @@ class TestIntegration < Test::Unit::TestCase
+     assert_kind_of Thread, t.join(1), "server didn't stop"
+   end
+ 
+-  def test_phased_restart_via_pumactl
++  def no_test_phased_restart_via_pumactl
+     if Puma.jruby? || Puma.windows?
+       assert true
+       return

gnu/packages/ruby.scm

@@ -3939,6 +3939,47 @@ part of the Prawn PDF generator.")
     ;; for details."
     (license (list license:gpl2 license:gpl3 license:ruby))))
 
+(define-public ruby-puma
+  (package
+    (name "ruby-puma")
+    (version "3.4.0")
+    (source
+     (origin
+       (method url-fetch)
+       ;; Fetch from GitHub because distributed gem does not contain tests.
+       (uri (string-append "https://github.com/puma/puma/archive/v"
+                           version ".tar.gz"))
+       (file-name (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "10svyj2jk949y1dmkxyzipk1ddzl4iz9limrcws1zhpganpvq3j8"))
+       ;; Ignore broken test reported upstream.
+       ;; https://github.com/puma/puma/issues/995
+       (patches (search-patches "ruby-puma-ignore-broken-test.patch"))))
+    (build-system ruby-build-system)
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+         (add-before 'build 'fix-gemspec
+           (lambda _
+             (substitute* "puma.gemspec"
+               (("git ls-files") "find * |sort"))
+             #t)))))
+    (native-inputs
+     `(("ruby-hoe" ,ruby-hoe)
+       ("ruby-rake-compiler" ,ruby-rake-compiler)
+       ("ruby-hoe-git" ,ruby-hoe-git)
+       ("ruby-rack" ,ruby-rack)))
+    (synopsis "Simple, concurrent HTTP server for Ruby/Rack")
+    (description
+     "Puma is a simple, fast, threaded, and highly concurrent HTTP 1.1 server
+for Ruby/Rack applications.  Puma is intended for use in both development and
+production environments.  In order to get the best throughput, it is highly
+recommended that you use a Ruby implementation with real threads like Rubinius
+or JRuby.")
+    (home-page "http://puma.io")
+    (license license:expat)))
+
 (define-public ruby-hoe-git
   (package
     (name "ruby-hoe-git")