Make config command cross-platform.

Closes #168.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>

2 files changed, 61 insertions, 0 deletions

diff --git a/Library/Homebrew/extend/os/mac/system_config.rb b/Library/Homebrew/extend/os/mac/system_config.rb
new file mode 100644
index 000000000..4a06d07ef
--- /dev/null
+++ b/Library/Homebrew/extend/os/mac/system_config.rb
@@ -0,0 +1,56 @@
+class SystemConfig
+  class << self
+    def xcode
+      if instance_variable_defined?(:@xcode)
+        @xcode
+      elsif MacOS::Xcode.installed?
+        @xcode = MacOS::Xcode.version
+        @xcode += " => #{MacOS::Xcode.prefix}" unless MacOS::Xcode.default_prefix?
+        @xcode
+      end
+    end
+
+    def clt
+      if instance_variable_defined?(:@clt)
+        @clt
+      elsif MacOS::CLT.installed? && MacOS::Xcode.version >= "4.3"
+        @clt = MacOS::CLT.version
+      end
+    end
+
+    def macports_or_fink
+      @ponk ||= MacOS.macports_or_fink
+      @ponk.join(", ") unless @ponk.empty?
+    end
+
+    def describe_xquartz
+      return "N/A" unless MacOS::XQuartz.installed?
+      "#{MacOS::XQuartz.version} => #{describe_path(MacOS::XQuartz.prefix)}"
+    end
+
+    def describe_system_ruby
+      s = ""
+      case RUBY_VERSION
+      when /^1\.[89]/, /^2\.0/
+        s << "#{RUBY_VERSION}-p#{RUBY_PATCHLEVEL}"
+      else
+        s << RUBY_VERSION
+      end
+
+      if RUBY_PATH.to_s !~ %r{^/System/Library/Frameworks/Ruby.framework/Versions/[12]\.[089]/usr/bin/ruby}
+        s << " => #{RUBY_PATH}"
+      end
+      s
+    end
+
+    def dump_verbose_config(f = $stdout)
+      dump_generic_verbose_config(f)
+      f.puts "System Ruby: #{describe_system_ruby}"
+      f.puts "OS X: #{MacOS.full_version}-#{kernel}"
+      f.puts "Xcode: #{xcode ? xcode : "N/A"}"
+      f.puts "CLT: #{clt ? clt : "N/A"}"
+      f.puts "X11: #{describe_xquartz}"
+      f.puts "MacPorts/Fink: #{macports_or_fink}" if macports_or_fink
+    end
+  end
+end
diff --git a/Library/Homebrew/extend/os/system_config.rb b/Library/Homebrew/extend/os/system_config.rb
new file mode 100644
index 000000000..cf7b69cb6
--- /dev/null
+++ b/Library/Homebrew/extend/os/system_config.rb
@@ -0,0 +1,5 @@
+require "system_config"
+
+if OS.mac?
+  require "extend/os/mac/system_config"
+end