From 476a72ae92faec7a9bd974dec0869005cd7b8044 Mon Sep 17 00:00:00 2001
From: Roland Walker <walker@pobox.com>
Date: Wed, 31 Dec 2014 08:34:49 -0500
Subject: [PATCH] incorporate hardware.rb from homebrew-fork

* this is already a much-simplified version
* recast to avoid using popen_read method
* popen.rb is now unused and is removed
* new file is cask/hardware/cpu.rb
* toplevel ::Hardware namespace is temporarily aliased to Cask::Hardware
---
 lib/cask.rb                          |  2 ++
 lib/cask/hardware.rb                 |  3 ++
 lib/cask/hardware/cpu.rb             | 41 +++++++++++++++++++++++
 lib/vendor/homebrew-fork/hardware.rb | 50 ----------------------------
 lib/vendor/homebrew-fork/popen.rb    | 20 -----------
 lib/vendor/homebrew-fork/utils.rb    |  2 --
 6 files changed, 46 insertions(+), 72 deletions(-)
 create mode 100644 lib/cask/hardware.rb
 create mode 100644 lib/cask/hardware/cpu.rb
 delete mode 100644 lib/vendor/homebrew-fork/hardware.rb
 delete mode 100644 lib/vendor/homebrew-fork/popen.rb

diff --git a/lib/cask.rb b/lib/cask.rb
index d1b2ef64d4..1b064f2975 100644
--- a/lib/cask.rb
+++ b/lib/cask.rb
@@ -20,6 +20,7 @@ require 'cask/download_strategy'
 require 'cask/dsl'
 require 'cask/exceptions'
 require 'cask/fetcher'
+require 'cask/hardware'
 require 'cask/installer'
 require 'cask/locations'
 require 'cask/macos'
@@ -49,6 +50,7 @@ class Cask
 
   # todo: restrict visibility of this to the DSL
   ::MacOS = Cask::MacOS
+  ::Hardware = Cask::Hardware
 
   def self.init
     # todo: Creating directories should be deferred until needed.
diff --git a/lib/cask/hardware.rb b/lib/cask/hardware.rb
new file mode 100644
index 0000000000..760fa46594
--- /dev/null
+++ b/lib/cask/hardware.rb
@@ -0,0 +1,3 @@
+module Cask::Hardware; end
+
+require 'cask/hardware/cpu'
diff --git a/lib/cask/hardware/cpu.rb b/lib/cask/hardware/cpu.rb
new file mode 100644
index 0000000000..7d6eae6e3e
--- /dev/null
+++ b/lib/cask/hardware/cpu.rb
@@ -0,0 +1,41 @@
+# originally from Homebrew
+
+module Cask::Hardware::CPU
+  extend self
+
+  def is_32_bit?
+    !is_64_bit?
+  end
+
+  def is_64_bit?
+    @capable ||= `/usr/sbin/sysctl -n hw.cpu64bit_capable 2>/dev/null`.to_i
+    @capable == 1
+  end
+
+  def intel?
+    type == :intel
+  end
+
+  def ppc?
+    type == :ppc
+  end
+
+  # sysctl is described in <mach/machine.h>
+  def type
+    @type ||= `/usr/sbin/sysctl -n hw.cputype 2>/dev/null`.to_i
+    case @type
+    when 7
+      :intel
+    when 18
+      :ppc
+    end
+  end
+
+  def cores
+    @cores ||= `/usr/sbin/sysctl -n hw.ncpu 2>/dev/null`.to_i
+  end
+
+  def bits
+    @bits ||= is_64_bit? ? 64 : 32
+  end
+end
diff --git a/lib/vendor/homebrew-fork/hardware.rb b/lib/vendor/homebrew-fork/hardware.rb
deleted file mode 100644
index 9f83c8ad90..0000000000
--- a/lib/vendor/homebrew-fork/hardware.rb
+++ /dev/null
@@ -1,50 +0,0 @@
-module Hardware
-  module CPU
-    extend self
-
-    def is_32_bit?
-      bits == 32
-    end
-
-    def is_64_bit?
-      bits == 64
-    end
-
-    def intel?
-      type == :intel
-    end
-
-    def ppc?
-      type == :ppc
-    end
-
-    # sysctl is described in <mach/machine.h>
-    def type
-      @type ||= `/usr/sbin/sysctl -n hw.cputype 2>/dev/null`.to_i
-      case @type
-      when 7
-        :intel
-      when 18
-        :ppc
-      end
-    end
-
-    def cores
-      @cores ||= `/usr/sbin/sysctl -n hw.ncpu 2>/dev/null`.to_i
-    end
-
-    def bits
-      @bits ||= sysctl_bool("hw.cpu64bit_capable") ? 64 : 32
-    end
-
-    protected
-
-    def sysctl_bool(property)
-      (@properties ||= {}).fetch(property) do
-        result = Utils.popen_read("/usr/sbin/sysctl", "-n", property, &:gets).to_i
-        # sysctl call succeded and printed 1
-        @properties[property] = $?.success? && result == 1
-      end
-    end
-  end
-end
diff --git a/lib/vendor/homebrew-fork/popen.rb b/lib/vendor/homebrew-fork/popen.rb
deleted file mode 100644
index ad4b6f78b2..0000000000
--- a/lib/vendor/homebrew-fork/popen.rb
+++ /dev/null
@@ -1,20 +0,0 @@
-module Utils
-  def self.popen_read(*args, &block)
-    popen(args, "rb", &block)
-  end
-
-  def self.popen(args, mode)
-    IO.popen("-", mode) do |pipe|
-      if pipe
-        if block_given?
-          yield pipe
-        else
-          return pipe.read
-        end
-      else
-        STDERR.reopen("/dev/null", "w")
-        exec(*args)
-      end
-    end
-  end
-end
diff --git a/lib/vendor/homebrew-fork/utils.rb b/lib/vendor/homebrew-fork/utils.rb
index 1abce27e77..675a5d95b7 100644
--- a/lib/vendor/homebrew-fork/utils.rb
+++ b/lib/vendor/homebrew-fork/utils.rb
@@ -1,7 +1,5 @@
 require 'pathname'
 require 'vendor/homebrew-fork/exceptions'
-require 'vendor/homebrew-fork/hardware'
-require 'vendor/homebrew-fork/popen'
 
 def homebrew_fork_system cmd, *args
   puts "#{cmd} #{args*' '}" if Cask.verbose