Check that the cellar exists in Formula.installed

Fixes Homebrew/homebrew#21741.
2013-08-10 19:56:28 -05:00 · 2013-08-10 19:56:28 -05:00 · 14dd61fc87
commit 14dd61fc87
parent 966e82663f
1 changed files with 2 additions and 0 deletions
--- a/Library/Homebrew/formula.rb
+++ b/Library/Homebrew/formula.rb
@ -355,6 +355,8 @@ class Formula
  end

  def self.installed
+    return [] unless HOMEBREW_CELLAR.directory?
+
    HOMEBREW_CELLAR.children.map do |rack|
      begin
        factory(rack.basename.to_s)