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Formula: add any_version_installed? method

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Xu Cheng 2015-07-30 16:01:36 +08:00
parent 8f5f27358a
commit 03facd8554
1 changed files with 6 additions and 0 deletions
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6
Library/Homebrew/formula.rb
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@ -274,6 +274,12 @@ class Formula
(dir = installed_prefix).directory? && dir.children.length > 0 (dir = installed_prefix).directory? && dir.children.length > 0
end end
# If at least one version of {Formula} is installed.
def any_version_installed?
require "tab"
rack.directory? && rack.subdirs.any? { |keg| (keg/Tab::FILENAME).file? }
end
# @private # @private
# The `LinkedKegs` directory for this {Formula}. # The `LinkedKegs` directory for this {Formula}.
# You probably want {#opt_prefix} instead. # You probably want {#opt_prefix} instead.