* lib/rubygems/ext/cmake_builder.rb: Added a builder for cmake.

* lib/rubygems/ext.rb:  ditto.
* lib/rubygems/installer.rb:  ditto.
* test/rubygems/test_gem_ext_cmake_builder.rb:  Test for above.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38283 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,10 @@
+Mon Dec 10 09:40:19 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/ext/cmake_builder.rb:  Added a builder for cmake.
+	* lib/rubygems/ext.rb:  ditto.
+	* lib/rubygems/installer.rb:  ditto.
+	* test/rubygems/test_gem_ext_cmake_builder.rb:  Test for above.
+
 Mon Dec 10 09:13:08 2012  Eric Hodel  <drbrain@segment7.net>
 
 	* lib/rubygems/package.rb:  Omit directories when packaging gems like

lib/rubygems/ext.rb

@@ -15,4 +15,5 @@ require 'rubygems/ext/builder'
 require 'rubygems/ext/configure_builder'
 require 'rubygems/ext/ext_conf_builder'
 require 'rubygems/ext/rake_builder'
+require 'rubygems/ext/cmake_builder'
 

lib/rubygems/ext/cmake_builder.rb

@@ -0,0 +1,14 @@
+class Gem::Ext::CmakeBuilder < Gem::Ext::Builder
+  def self.build(extension, directory, dest_path, results)
+    unless File.exist?('Makefile') then
+      cmd = "cmake . -DCMAKE_INSTALL_PREFIX=#{dest_path}"
+      cmd << " #{Gem::Command.build_args.join ' '}" unless Gem::Command.build_args.empty?
+
+      run cmd, results
+    end
+
+    make dest_path, results
+
+    results
+  end
+end

lib/rubygems/installer.rb

@@ -667,6 +667,8 @@ TEXT
                 when /rakefile/i, /mkrf_conf/i then
                   ran_rake = true
                   Gem::Ext::RakeBuilder
+                when /CMakeLists.txt/ then
+                  Gem::Ext::CmakeBuilder
                 else
                   message = "No builder for extension '#{extension}'"
                   extension_build_error extension_dir, message

test/rubygems/test_gem_ext_cmake_builder.rb

@@ -0,0 +1,84 @@
+require 'rubygems/test_case'
+require 'rubygems/ext'
+
+class TestGemExtCmakeBuilder < Gem::TestCase
+
+  def setup
+    super
+
+    `cmake #{Gem::Ext::Builder.redirector}`
+
+    skip 'cmake not present' unless $?.success?
+
+    @ext = File.join @tempdir, 'ext'
+    @dest_path = File.join @tempdir, 'prefix'
+
+    FileUtils.mkdir_p @ext
+    FileUtils.mkdir_p @dest_path
+  end
+
+  def test_self_build
+    File.open File.join(@ext, 'CMakeLists.txt'), 'w' do |cmakelists|
+      cmakelists.write <<-eo_cmake
+cmake_minimum_required(VERSION 2.8)
+install (FILES test.txt DESTINATION bin)
+      eo_cmake
+    end
+    File.open File.join(@ext, 'test.txt'), 'w' do |testfile|
+    end
+
+    output = []
+
+    Dir.chdir @ext do
+      Gem::Ext::CmakeBuilder.build nil, nil, @dest_path, output
+    end
+
+    assert_equal "cmake . -DCMAKE_INSTALL_PREFIX=#{@dest_path}", output.shift
+    assert_match(/#{@ext}/, output.shift)
+    assert_equal make_command, output.shift
+    assert_equal "", output.shift
+    assert_equal make_command + " install", output.shift
+    assert_match(/test\.txt/, output.shift)
+  end
+
+  def test_self_build_fail
+    output = []
+
+    error = assert_raises Gem::InstallError do
+      Dir.chdir @ext do
+        Gem::Ext::CmakeBuilder.build nil, nil, @dest_path, output
+      end
+    end
+
+    shell_error_msg = %r{(CMake Error: .*)}
+    sh_prefix_cmake = "cmake . -DCMAKE_INSTALL_PREFIX="
+
+    expected = %r(cmake failed:
+
+#{Regexp.escape sh_prefix_cmake}#{Regexp.escape @dest_path}
+#{shell_error_msg}
+)
+
+    assert_match expected, error.message
+
+    assert_equal "#{sh_prefix_cmake}#{@dest_path}", output.shift
+    assert_match %r(#{shell_error_msg}), output.shift
+    assert_equal true, output.empty?
+  end
+
+  def test_self_build_has_makefile
+    File.open File.join(@ext, 'Makefile'), 'w' do |makefile|
+      makefile.puts "all:\n\t@echo ok\ninstall:\n\t@echo ok"
+    end
+
+    output = []
+    Dir.chdir @ext do
+      Gem::Ext::CmakeBuilder.build nil, nil, @dest_path, output
+    end
+
+    assert_equal make_command, output[0]
+    assert_equal "#{make_command} install", output[2]
+  end
+
+end
+