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Don't allow Keg.new for empty kegs

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Kegs have to exist to be created.
This commit is contained in:
Max Howell 2009-07-31 01:18:03 +01:00
parent 4ac760779e
commit 6d64eb28d5
1 changed files with 3 additions and 1 deletions
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4
Library/Homebrew/keg.rb
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@ -29,7 +29,9 @@ class Keg
elsif formula.is_a? Pathname elsif formula.is_a? Pathname
# TODO # TODO
elsif formula.is_a? String elsif formula.is_a? String
kids=($cellar+formula).children path=$cellar+formula
kids=path.children
raise "Empty installation: #{path}" if kids.length < 1
raise "Multiple versions installed" if kids.length > 1 raise "Multiple versions installed" if kids.length > 1
@path=kids[0] @path=kids[0]
@name=formula @name=formula