Add `brew --cellar` command.

The Cellar may not actually be "`brew --prefix`/Cellar".
We support the Cellar existing only in the repo but
not linked into the prefix, for installs that aren't
directly in /usr/local (or other chosen prefix.)

1 files changed, 2 insertions, 0 deletions

diff --git a/bin/brew b/bin/brew
index 8dc7c0ae4..dfbc4e3dd 100755
--- a/bin/brew
+++ b/bin/brew
@@ -77,6 +77,8 @@ begin
     puts HOMEBREW_PREFIX
   when '--repository'
     puts HOMEBREW_REPOSITORY
+  when '--cellar'
+    puts HOMEBREW_CELLAR
   when '--config'
     dump_config