Some bulletproofing for bash completion script.

Since Homebrew's Library doesn't have to be linked under prefix,
we need to do some extra work in the bash completion script to
support this configuration.

Added a "--repository" option to brew, and updated the completion
script to use paths relative to this location.

2 files changed, 3 insertions, 2 deletions

diff --git a/Library/Contributions/brew_bash_completion.sh b/Library/Contributions/brew_bash_completion.sh
index ddd9c17e0..756621cf5 100644
--- a/Library/Contributions/brew_bash_completion.sh
+++ b/Library/Contributions/brew_bash_completion.sh
@@ -21,8 +21,7 @@ _brew_to_completion()
         return 0
     # Subcommands
     else
-        brew_base=`which brew`
-        brew_base=`dirname ${brew_base}`/..
+        brew_base=`brew --repository`
         
         case ${prev} in
             # Commands that take a formula...
diff --git a/bin/brew b/bin/brew
index c3c5938d1..0b14d9751 100755
--- a/bin/brew
+++ b/bin/brew
@@ -75,6 +75,8 @@ begin
   case arg = ARGV.shift
   when '--prefix'
     puts HOMEBREW_PREFIX
+  when '--repository'
+    puts HOMEBREW_REPOSITORY
   when '--config'
     dump_config