Support installing bottles from local files.

Library/Homebrew/bottles.rb

@@ -11,6 +11,7 @@ end
 
 def install_bottle? f
   return true if ARGV.include? '--install-bottle'
+  return true if f.downloader and f.downloader.local_bottle_path
   not ARGV.build_from_source? \
     and MacOS.bottles_supported? \
     and ARGV.used_options(f).empty? \

Library/Homebrew/download_strategy.rb

@@ -32,7 +32,8 @@ class AbstractDownloadStrategy
 end
 
 class CurlDownloadStrategy < AbstractDownloadStrategy
-  attr_reader :tarball_path
+  attr_reader :tarball_path, :local_bottle_path
+  attr_writer :local_bottle_path
 
   def initialize name, package
     super
@@ -55,6 +56,11 @@ class CurlDownloadStrategy < AbstractDownloadStrategy
   end
 
   def fetch
+    if @local_bottle_path
+      @tarball_path = @local_bottle_path
+      return @local_bottle_path
+    end
+
     ohai "Downloading #{@url}"
     unless @tarball_path.exist?
       begin
@@ -79,6 +85,8 @@ class CurlDownloadStrategy < AbstractDownloadStrategy
   end
 
   def stage
+    ohai "Pouring #{File.basename(@tarball_path)}" if @tarball_path.to_s.match bottle_regex
+
     case @tarball_path.compression_type
     when :zip
       quiet_safe_system '/usr/bin/unzip', {:quiet_flag => '-qq'}, @tarball_path
@@ -204,10 +212,6 @@ class CurlBottleDownloadStrategy < CurlDownloadStrategy
       FileUtils.mv old_bottle_path, @tarball_path if old_bottle_path.exist?
     end
   end
-  def stage
-    ohai "Pouring #{File.basename(@tarball_path)}"
-    super
-  end
 end
 
 class SubversionDownloadStrategy < AbstractDownloadStrategy

Library/Homebrew/formula.rb

@@ -355,6 +355,11 @@ class Formula
       end
 
       install_type = :from_url
+    elsif name.match bottle_regex
+      bottle_filename = Pathname(name).realpath
+      name = name.split('-').first
+      path = Formula.path(name)
+      install_type = :from_local_bottle
     else
       name = Formula.canonical_name(name)
 
@@ -395,6 +400,12 @@ class Formula
       raise LoadError
     end
 
+    if install_type == :from_local_bottle
+      formula = klass.new(name)
+      formula.downloader.local_bottle_path = bottle_filename
+      return formula
+    end
+
     raise NameError if !klass.ancestors.include? Formula
 
     return klass.new(name) if install_type == :from_name

Library/Homebrew/formula_installer.rb

@@ -364,7 +364,7 @@ class FormulaInstaller
 
   def pour
     fetched, downloader = f.fetch
-    f.verify_download_integrity fetched
+    f.verify_download_integrity fetched unless downloader.local_bottle_path
     HOMEBREW_CELLAR.cd do
       downloader.stage
     end