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Add a helper to determine if a keg is linked

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'keg.linked?' will return true if there is an entry for 'keg' in
LinkedKegs.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
This commit is contained in:
Jack Nagel 2012-01-01 15:18:25 -06:00
parent 198135e8c0
commit 07b7dd7a7a
1 changed files with 4 additions and 0 deletions
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4
Library/Homebrew/keg.rb
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@ -45,6 +45,10 @@ class Keg < Pathname
@linked_keg_record ||= HOMEBREW_REPOSITORY/"Library/LinkedKegs"/fname @linked_keg_record ||= HOMEBREW_REPOSITORY/"Library/LinkedKegs"/fname
end end
def linked?
linked_keg_record.directory? and self == linked_keg_record.realpath
end
def link def link
raise "Cannot link #{fname}\nAnother version is already linked: #{linked_keg_record.realpath}" if linked_keg_record.directory? raise "Cannot link #{fname}\nAnother version is already linked: #{linked_keg_record.realpath}" if linked_keg_record.directory?