104 lines
2.3 KiB
Ruby
104 lines
2.3 KiB
Ruby
require 'options'
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# This class holds the build-time options defined for a Formula,
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# and provides named access to those options during install.
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class BuildOptions
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attr_accessor :args
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include Enumerable
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def initialize args
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@args = Options.coerce(args)
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@options = Options.new
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end
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def add name, description=nil
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description ||= case name.to_s
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when "universal" then "Build a universal binary"
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when "32-bit" then "Build 32-bit only"
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end.to_s
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@options << Option.new(name, description)
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end
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def has_option? name
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any? { |opt| opt.name == name }
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end
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def empty?
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@options.empty?
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end
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def each(*args, &block)
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@options.each(*args, &block)
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end
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def as_flags
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@options.as_flags
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end
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def include? name
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args.include? '--' + name
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end
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def with? name
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if has_option? "with-#{name}"
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include? "with-#{name}"
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elsif has_option? "without-#{name}"
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not include? "without-#{name}"
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else
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false
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end
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end
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def without? name
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not with? name
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end
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def head?
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args.include? '--HEAD'
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end
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def devel?
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args.include? '--devel'
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end
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def stable?
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not (head? or devel?)
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end
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# True if the user requested a universal build.
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def universal?
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args.include?('--universal') && has_option?('universal')
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end
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# Request a 32-bit only build.
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# This is needed for some use-cases though we prefer to build Universal
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# when a 32-bit version is needed.
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def build_32_bit?
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args.include?('--32-bit') && has_option?('32-bit')
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end
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def used_options
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Options.new(@options & @args)
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end
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def unused_options
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Options.new(@options - @args)
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end
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# Some options are implicitly ON because they are not explictly turned off
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# by their counterpart option. This applies only to with-/without- options.
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# implicit_options are needed because `depends_on 'spam' => 'with-stuff'`
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# complains if 'spam' has stuff as default and only defines `--without-stuff`.
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def implicit_options
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implicit = unused_options.map do |o|
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if o.name =~ /^with-(.+)$/ && without?($1)
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Option.new("without-#{$1}") # we lose the description, but that's ok
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elsif o.name =~ /^without-(.+)$/ && with?($1)
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Option.new("with-#{$1}")
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end
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end.compact
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Options.new(implicit)
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end
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end
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