Code smell: English names for special globals rather than line-noise

* Replaced 36 occurances of [$][?] with $CHILD_STATUS

  3 Examples:

      The code:
          print "%s finished with exit code %s\n" % [host, $?.exitstatus]
      becomes:
          print "%s finished with exit code %s\n" % [host, $CHILD_STATUS.exitstatus]
      The code:
          $stderr.puts "Could not find host for PID %s with status %s" % [pid, $?.exitstatus]
      becomes:
          $stderr.puts "Could not find host for PID %s with status %s" % [pid, $CHILD_STATUS.exitstatus]
      The code:
          unless $? == 0
      becomes:
          unless $CHILD_STATUS == 0

* Replaced 3 occurances of [$][$] with $PID

  3 Examples:

      The code:
          Process.kill(:HUP, $$) if restart_requested?
      becomes:
          Process.kill(:HUP, $PID) if restart_requested?
      The code:
          if pid == $$
      becomes:
          if pid == $PID
      The code:
          host[:name] = "!invalid.hostname.$$$"
      becomes:
          host[:name] = "!invalid.hostname.$PID$"

* Replaced 7 occurances of [$]& with $MATCH

  3 Examples:

      The code:
          work.slice!(0, $&.length)
      becomes:
          work.slice!(0, $MATCH.length)
      The code:
          if $&
      becomes:
          if $MATCH
      The code:
          if $&
      becomes:
          if $MATCH

* Replaced 28 occurances of [$]:(?!:) with $LOAD_PATH

  3 Examples:

      The code:
          sitelibdir = $:.find { |x| x =~ /site_ruby/ }
      becomes:
          sitelibdir = $LOAD_PATH.find { |x| x =~ /site_ruby/ }
      The code:
          $:.unshift "lib"
      becomes:
          $LOAD_PATH.unshift "lib"
      The code:
          $:.shift
      becomes:
          $LOAD_PATH.shift

* Replaced 3 occurances of [$]! with $ERROR_INFO

  3 Examples:

      The code:
          $LOG.fatal("Problem reading #{filepath}: #{$!}")
      becomes:
          $LOG.fatal("Problem reading #{filepath}: #{$ERROR_INFO}")
      The code:
          $stderr.puts "Couldn't build man pages: " + $!
      becomes:
          $stderr.puts "Couldn't build man pages: " + $ERROR_INFO
      The code:
          $stderr.puts $!.message
      becomes:
          $stderr.puts $ERROR_INFO.message

* Replaced 3 occurances of ^(.*)[$]" with \1$LOADED_FEATURES

  3 Examples:

      The code:
          unless $".index 'racc/parser.rb'
      becomes:
          unless $LOADED_FEATURES.index 'racc/parser.rb'
      The code:
          $".push 'racc/parser.rb'
      becomes:
          $LOADED_FEATURES.push 'racc/parser.rb'
      The code:
          $".should be_include("tmp/myfile.rb")
      becomes:
          $LOADED_FEATURES.should be_include("tmp/myfile.rb")

1 files changed, 4 insertions, 4 deletions

diff --git a/install.rb b/install.rb
index 18da2bebb..a95ef7616 100755
--- a/install.rb
+++ b/install.rb
@@ -270,7 +270,7 @@ def prepare_installation
     else
         sitelibdir = Config::CONFIG["sitelibdir"]
         if sitelibdir.nil?
-            sitelibdir = $:.find { |x| x =~ /site_ruby/ }
+            sitelibdir = $LOAD_PATH.find { |x| x =~ /site_ruby/ }
             if sitelibdir.nil?
                 sitelibdir = File.join(libdir, "site_ruby")
             elsif sitelibdir !~ Regexp.quote(version)
@@ -369,7 +369,7 @@ def build_man(bins, sbins)
         end
 
 rescue SystemCallError
-    $stderr.puts "Couldn't build man pages: " + $!
+    $stderr.puts "Couldn't build man pages: " + $ERROR_INFO
     $stderr.puts "Continuing with install..."
     end
 end
@@ -377,7 +377,7 @@ end
 def run_tests(test_list)
     begin
         require 'test/unit/ui/console/testrunner'
-        $:.unshift "lib"
+        $LOAD_PATH.unshift "lib"
         test_list.each do |test|
             next if File.directory?(test)
             require test
@@ -389,7 +389,7 @@ def run_tests(test_list)
         tests.delete_if { |o| o == Test::Unit::TestCase }
 
         tests.each { |test| Test::Unit::UI::Console::TestRunner.run(test) }
-        $:.shift
+        $LOAD_PATH.shift
     rescue LoadError
         puts "Missing testrunner library; skipping tests"
     end