From c4fb2b73e2602c07e02a78360ef9de59d417ca37 Mon Sep 17 00:00:00 2001
From: Mike McQuaid <mike@mikemcquaid.com>
Date: Sun, 25 Nov 2012 14:33:52 +0000
Subject: [PATCH] Support installing bottles from local files.

---
 Library/Homebrew/bottles.rb           |  1 +
 Library/Homebrew/download_strategy.rb | 14 +++++++++-----
 Library/Homebrew/formula.rb           | 11 +++++++++++
 Library/Homebrew/formula_installer.rb |  2 +-
 4 files changed, 22 insertions(+), 6 deletions(-)

diff --git a/Library/Homebrew/bottles.rb b/Library/Homebrew/bottles.rb
index a060d671e7..ff316f9253 100644
--- a/Library/Homebrew/bottles.rb
+++ b/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? \
diff --git a/Library/Homebrew/download_strategy.rb b/Library/Homebrew/download_strategy.rb
index 3a1e0e64c5..f9df839d10 100644
--- a/Library/Homebrew/download_strategy.rb
+++ b/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
diff --git a/Library/Homebrew/formula.rb b/Library/Homebrew/formula.rb
index d553846e3c..3563badecc 100644
--- a/Library/Homebrew/formula.rb
+++ b/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
diff --git a/Library/Homebrew/formula_installer.rb b/Library/Homebrew/formula_installer.rb
index 4d25ead56d..8f3670c6b4 100644
--- a/Library/Homebrew/formula_installer.rb
+++ b/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