brew/Library/Homebrew/formula_support.rb
Shaun Jackman 8e3e0be6d1 gettext, readline: Add keg_only :shadowed_by_osx
Closes Homebrew/homebrew#31951.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
2014-08-28 17:01:38 -05:00

53 lines
1.4 KiB
Ruby

# Used to track formulae that cannot be installed at the same time
FormulaConflict = Struct.new(:name, :reason)
# Used to annotate formulae that duplicate OS X provided software
# or cause conflicts when linked in.
class KegOnlyReason
def initialize(reason, explanation)
@reason = reason
@explanation = explanation
end
def valid?
case @reason
when :provided_pre_mountain_lion
MacOS.version < :mountain_lion
when :provided_until_xcode43
MacOS::Xcode.version < "4.3"
when :provided_until_xcode5
MacOS::Xcode.version < "5.0"
else
true
end
end
def to_s
case @reason
when :provided_by_osx then <<-EOS.undent
Mac OS X already provides this software and installing another version in
parallel can cause all kinds of trouble.
#{@explanation}
EOS
when :shadowed_by_osx then <<-EOS.undent
Mac OS X provides similar software, and installing this software in
parallel can cause all kinds of trouble.
#{@explanation}
EOS
when :provided_pre_mountain_lion then <<-EOS.undent
Mac OS X already provides this software in versions before Mountain Lion.
#{@explanation}
EOS
when :provided_until_xcode43
"Xcode provides this software prior to version 4.3.\n\n#{@explanation}"
when :provided_until_xcode5
"Xcode provides this software prior to version 5.\n\n#{@explanation}"
else
@reason
end.strip
end
end