Give a fresh 🍺 after hard work of brew install

- Name of the brewed formula in "Summary" heading.
- At the beginning of the summary line a 🍺  is given out
  (but only on Lion or above). This acts as a nice
  visual marker for the end of a brew-ing process.
- When brewing a dependency, the name is highlighted in green.
- `oh1` is bold, too (like ohai).

Closes Homebrew/homebrew#16020.

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

Library/Homebrew/formula_installer.rb

@@ -114,7 +114,7 @@ class FormulaInstaller
       end
     end
 
-    oh1 "Installing #{f}" if show_header
+    oh1 "Installing #{Tty.green}#{f}#{Tty.reset}" if show_header
 
     if install_bottle
       pour
@@ -133,7 +133,7 @@ class FormulaInstaller
     fi = FormulaInstaller.new(dep, dep_tab)
     fi.ignore_deps = true
     fi.show_header = false
-    oh1 "Installing #{f} dependency: #{dep}"
+    oh1 "Installing #{f} dependency: #{Tty.green}#{dep}#{Tty.reset}"
     outdated_keg.unlink if outdated_keg
     fi.install
     fi.caveats
@@ -173,7 +173,8 @@ class FormulaInstaller
     install_plist
     fix_install_names
 
-    ohai "Summary" if ARGV.verbose? or show_summary_heading
+    ohai "Summary - #{f.name}" if ARGV.verbose? or show_summary_heading
+    print "🍺  " if MacOS.version >= :lion
     print "#{f.prefix}: #{f.prefix.abv}"
     print ", built in #{pretty_duration build_time}" if build_time
     puts

Library/Homebrew/utils.rb

@@ -42,7 +42,7 @@ end
 
 def oh1 title
   title = title.to_s[0, Tty.width - 4] if $stdout.tty? unless ARGV.verbose?
-  puts "#{Tty.green}==> #{Tty.reset}#{title}"
+  puts "#{Tty.green}==>#{Tty.white} #{title}#{Tty.reset}"
 end
 
 def opoo warning