Merge pull request #983 from MikeMcQuaid/update-force-linkedkegs-migration

Always run LinkedKegs migration (if needed).

Library/Homebrew/cmd/update-report.rb

@@ -172,7 +172,11 @@ module Homebrew
     legacy_linked_kegs = HOMEBREW_LIBRARY/"LinkedKegs"
     return unless legacy_linked_kegs.directory?
 
-    legacy_linked_kegs.children.each {|f| Keg.new(f.realpath).link }
+    legacy_linked_kegs.children.each do |f|
+      keg = Keg.new(f.realpath)
+      keg.unlink
+      keg.link
+    end
     FileUtils.rm_rf legacy_linked_kegs
 
     legacy_pinned_kegs = HOMEBREW_LIBRARY/"PinnedKegs"
@@ -181,7 +185,9 @@ module Homebrew
     legacy_pinned_kegs.children.each do |f|
       pin_version = Keg.new(f.realpath).version
       formula = Formulary.factory(f.basename.to_s)
-      FormulaPin.new(formula).pin_at(pin_version)
+      pin = FormulaPin.new(formula)
+      pin.unpin
+      pin.pin_at(pin_version)
     end
     FileUtils.rm_rf legacy_pinned_kegs
   end

Library/Homebrew/cmd/update.sh

@@ -534,6 +534,7 @@ EOS
   if [[ -n "$HOMEBREW_UPDATED" ||
         -n "$HOMEBREW_UPDATE_FAILED" ||
         -n "$HOMEBREW_UPDATE_FORCE" ||
+        -d "$HOMEBREW_LIBRARY/LinkedKegs" ||
         (-n "$HOMEBREW_DEVELOPER" && -z "$HOMEBREW_UPDATE_PREINSTALL") ]]
   then
     brew update-report "$@"

Library/Homebrew/config.rb

@@ -18,10 +18,18 @@ HOMEBREW_LIBRARY = Pathname.new(ENV["HOMEBREW_LIBRARY"])
 HOMEBREW_SHIMS_PATH = HOMEBREW_LIBRARY/"Homebrew/shims"
 
 # Where we store symlinks to currently linked kegs
-HOMEBREW_LINKED_KEGS = HOMEBREW_PREFIX/"var/homebrew/linked"
+HOMEBREW_LINKED_KEGS = if (HOMEBREW_LIBRARY/"LinkedKegs").exist?
+  HOMEBREW_LIBRARY/"LinkedKegs"
+else
+  HOMEBREW_PREFIX/"var/homebrew/linked"
+end
 
-# Wehere we store symlinks to currently version-pinned kegs
-HOMEBREW_PINNED_KEGS = HOMEBREW_PREFIX/"var/homebrew/pinned"
+# Where we store symlinks to currently version-pinned kegs
+HOMEBREW_PINNED_KEGS = if (HOMEBREW_LIBRARY/"PinnedKegs").exist?
+  HOMEBREW_LIBRARY/"PinnedKegs"
+else
+  HOMEBREW_PREFIX/"var/homebrew/pinned"
+end
 
 # Where we store lock files
 HOMEBREW_LOCK_DIR = HOMEBREW_PREFIX/"var/homebrew/locks"