9db0e68eb6
These are class method calls, not some special keyword, and should be indented as such (also all standard Ruby indenters do this).
117 lines
3.1 KiB
Ruby
117 lines
3.1 KiB
Ruby
require 'dependency'
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require 'dependencies'
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require 'requirement'
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require 'requirements'
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## A dependency is a formula that another formula needs to install.
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## A requirement is something other than a formula that another formula
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## needs to be present. This includes external language modules,
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## command-line tools in the path, or any arbitrary predicate.
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##
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## The `depends_on` method in the formula DSL is used to declare
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## dependencies and requirements.
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# This class is used by `depends_on` in the formula DSL to turn dependency
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# specifications into the proper kinds of dependencies and requirements.
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class DependencyCollector
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# Define the languages that we can handle as external dependencies.
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LANGUAGE_MODULES = [
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:chicken, :jruby, :lua, :node, :ocaml, :perl, :python, :rbx, :ruby
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].freeze
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attr_reader :deps, :requirements
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def initialize
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@deps = Dependencies.new
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@requirements = ComparableSet.new
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end
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def add(spec)
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case dep = build(spec)
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when Dependency
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@deps << dep
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when Requirement
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@requirements << dep
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end
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dep
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end
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def build(spec)
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spec, tag = case spec
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when Hash then spec.shift
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else spec
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end
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parse_spec(spec, tag)
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end
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private
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def parse_spec spec, tag
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case spec
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when Symbol
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parse_symbol_spec(spec, tag)
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when String
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if LANGUAGE_MODULES.include? tag
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LanguageModuleDependency.new(tag, spec)
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else
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Dependency.new(spec, tag)
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end
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when Formula
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Dependency.new(spec.name, tag)
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when Dependency, Requirement
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spec
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when Class
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if spec < Requirement
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spec.new(tag)
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else
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raise "#{spec} is not a Requirement subclass"
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end
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else
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raise "Unsupported type #{spec.class} for #{spec}"
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end
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end
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def parse_symbol_spec spec, tag
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case spec
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when :autoconf, :automake, :bsdmake, :libtool, :libltdl
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# Xcode no longer provides autotools or some other build tools
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autotools_dep(spec, tag)
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when *X11Dependency::Proxy::PACKAGES
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x11_dep(spec, tag)
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when :cairo, :pixman
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# We no longer use X11 psuedo-deps for cairo or pixman,
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# so just return a standard formula dependency.
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Dependency.new(spec.to_s, tag)
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when :x11 then X11Dependency.new(spec.to_s, tag)
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when :xcode then XcodeDependency.new(tag)
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when :mysql then MysqlDependency.new(tag)
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when :postgresql then PostgresqlDependency.new(tag)
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when :tex then TeXDependency.new(tag)
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when :clt then CLTDependency.new(tag)
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when :arch then ArchRequirement.new(tag)
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else
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raise "Unsupported special dependency #{spec}"
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end
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end
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def x11_dep(spec, tag)
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if MacOS.version >= :mountain_lion
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Dependency.new(spec.to_s, tag)
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else
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X11Dependency::Proxy.for(spec.to_s, tag)
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end
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end
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def autotools_dep(spec, tag)
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case spec
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when :libltdl then spec, tag = :libtool, Array(tag)
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else tag = Array(tag) << :build
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end
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unless MacOS::Xcode.provides_autotools?
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Dependency.new(spec.to_s, tag)
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end
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end
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end
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