Add changes to Homebrew internals for bottling.

Library/Homebrew/download_strategy.rb

@@ -60,7 +60,7 @@ class CurlDownloadStrategy < AbstractDownloadStrategy
         raise
       end
     else
-      puts "File already downloaded and cached to #{HOMEBREW_CACHE}"
+      puts "File already downloaded in #{File.dirname(@tarball_path)}"
     end
     return @tarball_path # thus performs checksum verification
   end
@@ -160,6 +160,18 @@ class CurlUnsafeDownloadStrategy < CurlDownloadStrategy
   end
 end
 
+# This strategy extracts our binary packages.
+class CurlBottleDownloadStrategy <CurlDownloadStrategy
+  def initialize url, name, version, specs
+    super
+    @tarball_path=HOMEBREW_CACHE+'Bottles'+("#{name}-#{version}"+ext)
+  end
+  def stage
+    ohai "Pouring #{File.basename(@tarball_path)}"
+    super
+  end
+end
+
 class SubversionDownloadStrategy <AbstractDownloadStrategy
   def initialize url, name, version, specs
     super

Library/Homebrew/extend/ARGV.rb

@@ -58,10 +58,19 @@ module HomebrewArgvExtension
   def build_head?
     flag? '--HEAD'
   end
+
   def build_universal?
     include? '--universal'
   end
 
+  def build_from_source?
+    flag? '--build-from-source' or ENV['HOMEBREW_BUILD_FROM_SOURCE']
+  end
+
+  def one?
+    flag? "--1"
+  end
+
   def flag? flag
     options_only.each do |arg|
       return true if arg == flag

Library/Homebrew/formula.rb

@@ -45,6 +45,13 @@ class SoftwareSpecification
   end
 end
 
+class BottleSoftwareSpecification <SoftwareSpecification
+  def download_strategy
+    return CurlBottleDownloadStrategy if @using.nil?
+    raise "Strategies cannot be used with bottles."
+  end
+end
+
 
 # Used to annotate formulae that duplicate OS X provided software
 # or cause conflicts when linked in.
@@ -94,12 +101,14 @@ end
 class Formula
   include FileUtils
 
-  attr_reader :name, :path, :url, :version, :homepage, :specs, :downloader
+  attr_reader :name, :path, :url, :bottle, :bottle_sha1, :version, :homepage, :specs, :downloader
 
   # Homebrew determines the name
   def initialize name='__UNKNOWN__', path=nil
     set_instance_variable 'homepage'
     set_instance_variable 'url'
+    set_instance_variable 'bottle'
+    set_instance_variable 'bottle_sha1'
     set_instance_variable 'head'
     set_instance_variable 'specs'
 
@@ -110,6 +119,8 @@ class Formula
       @url = @head
       @version = 'HEAD'
       @spec_to_use = @unstable
+    elsif pouring
+      @spec_to_use = BottleSoftwareSpecification.new(@bottle, @specs)
     else
       if @stable.nil?
         @spec_to_use = SoftwareSpecification.new(@url, @specs)
@@ -442,6 +453,10 @@ class Formula
     end
   end
 
+  def pouring
+    return (@bottle or ARGV.build_from_source?)
+  end
+
 protected
   # Pretty titles the command and buffers stdout/stderr
   # Throws if there's an error
@@ -500,10 +515,16 @@ private
 
   def verify_download_integrity fn
     require 'digest'
+    if not pouring
       type=CHECKSUM_TYPES.detect { |type| instance_variable_defined?("@#{type}") }
       type ||= :md5
       supplied=instance_variable_get("@#{type}")
       type=type.to_s.upcase
+    else
+      supplied=instance_variable_get("@bottle_sha1")
+      type="SHA1"
+    end
+
     hasher = Digest.const_get(type)
     hash = fn.incremental_hash(hasher)
 
@@ -528,14 +549,21 @@ EOF
     fetched = @downloader.fetch
     verify_download_integrity fetched if fetched.kind_of? Pathname
 
+    if not pouring
       mktemp do
         @downloader.stage
         yield
       end
+    else
+      HOMEBREW_CELLAR.cd do
+        @downloader.stage
+        yield
+      end
+    end
   end
 
   def patch
-    return if patches.nil?
+    return if patches.nil? or pouring
 
     if not patches.kind_of? Hash
       # We assume -p1
@@ -629,6 +657,7 @@ EOF
 
     attr_rw :version, :homepage, :specs, :deps, :external_deps
     attr_rw :keg_only_reason, :fails_with_llvm_reason, :skip_clean_all
+    attr_rw :bottle, :bottle_sha1
     attr_rw(*CHECKSUM_TYPES)
 
     def head val=nil, specs=nil

Library/Homebrew/install.rb

@@ -89,7 +89,7 @@ def install f
       else
         f.prefix.mkpath
         beginning=Time.now
-        f.install
+        f.install if not f.pouring
         FORMULA_META_FILES.each do |filename|
           next if File.directory? filename
           target_file = filename
@@ -99,7 +99,7 @@ def install f
           f.prefix.install target_file => filename rescue nil
           (f.prefix+file).chmod 0644 rescue nil
         end
-        build_time = Time.now-beginning
+        build_time = Time.now-beginning if not f.pouring
       end
     end
   rescue Exception
@@ -131,7 +131,7 @@ def install f
 
   begin
     require 'cleaner'
-    Cleaner.new f
+    Cleaner.new f if not f.pouring
   rescue Exception => e
     opoo "The cleaning step did not complete successfully"
     puts "Still, the installation was successful, so we will link it into your prefix"