Add --force to brew cleanup

Library/Contributions/manpages/brew.1.md

@@ -146,9 +146,12 @@ didn't include with OS X.
   * `cat` <formula>:
     Display the source to <formula>.
 
-  * `cleanup` [<formula>]:
+  * `cleanup [--force]` [<formula>]:
     For all installed or specific formulae, remove any older versions from the
-    cellar.
+    cellar. By default, does not remove out-of-date keg-only brews, as other
+    software may link directly to specific versions.
+
+    If `--force` is passed, remove out-of-date keg-only brews as well.
 
   * `log [git-log-options]` <formula> ...:
     Show the git log for the given formulae. Options that `git-log`(1)

Library/Homebrew/cmd/cleanup.rb

@@ -28,7 +28,7 @@ module Homebrew extend self
     # Don't clean up keg-only brews for now.
     # Formulae link directly to them, so cleaning up old
     # ones will break already compiled software.
-    if f.keg_only?
+    if f.keg_only? and not ARGV.force?
       opoo "Skipping keg-only #{f.name}" if rack.children.length > 1
       return
     end

share/man/man1/brew-man.1

@@ -1,7 +1,7 @@
 .\" generated with Ronn/v0.7.3
 .\" http://github.com/rtomayko/ronn/tree/0.7.3
 .
-.TH "BREW\-MAN" "1" "January 2011" "Homebrew" "brew"
+.TH "BREW\-MAN" "1" "March 2011" "Homebrew" "brew"
 .
 .SH "NAME"
 \fBbrew\-man\fR \- Generate man pages for Homebrew

share/man/man1/brew.1

@@ -163,8 +163,11 @@ Check your system for potential problems\.
 Display the source to \fIformula\fR\.
 .
 .TP
-\fBcleanup\fR [\fIformula\fR]
-For all installed or specific formulae, remove any older versions from the cellar\.
+\fBcleanup [\-\-force]\fR [\fIformula\fR]
+For all installed or specific formulae, remove any older versions from the cellar\. By default, does not remove out\-of\-date keg\-only brews, as other software may link directly to specific versions\.
+.
+.IP
+If \fB\-\-force\fR is passed, remove out\-of\-date keg\-only brews as well\.
 .
 .TP
 \fBlog [git\-log\-options]\fR \fIformula\fR \.\.\.