Class: Dep::Dependency

Inherits:
Object
  • Object
show all
Defined in:
lib/dependencies/dep.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, version = nil, environment = nil, url = nil) ⇒ Dependency

Returns a new instance of Dependency.



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# File 'lib/dependencies/dep.rb', line 8

def initialize(name, version = nil, environment = nil, url = nil)
  @name = name
  @version = version if version && !version.empty?
  @environment = environment ? environment.split(/\, ?/) : []
  @url = url
end

Instance Attribute Details

#environment ⇒ Object (readonly)

Returns the value of attribute environment.



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# File 'lib/dependencies/dep.rb', line 5

def environment
  @environment
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/dependencies/dep.rb', line 3

def name
  @name
end

#url ⇒ Object (readonly)

Returns the value of attribute url.



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# File 'lib/dependencies/dep.rb', line 6

def url
  @url
end

#version ⇒ Object (readonly)

Returns the value of attribute version.



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# File 'lib/dependencies/dep.rb', line 4

def version
  @version
end

Instance Method Details

#for_environment?(env) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/dependencies/dep.rb', line 15

def for_environment?(env)
  environment.empty? || environment.include?(env)
end

#require ⇒ Object 



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# File 'lib/dependencies/dep.rb', line 48

def require
  require_vendor || require_gem
end

#require_gem ⇒ Object 



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# File 'lib/dependencies/dep.rb', line 37

def require_gem
  return unless defined?(Gem)

  begin
    gem(*[name, version].compact)
    true
  rescue Gem::LoadError => e
    false
  end
end

#require_vendor ⇒ Object 



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# File 'lib/dependencies/dep.rb', line 33

def require_vendor
  $:.unshift(File.expand_path(vendor_path)) if vendor_path
end

#to_s ⇒ Object 



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# File 'lib/dependencies/dep.rb', line 52

def to_s
  [name, version, ("(#{environment.join(", ")})" unless environment.empty?)].compact.join(" ")
end

#vendor_name ⇒ Object 



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# File 'lib/dependencies/dep.rb', line 23

def vendor_name
  version ? "#{name}-#{version_number}" : name
end

#vendor_path ⇒ Object 



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# File 'lib/dependencies/dep.rb', line 27

def vendor_path
  Dir[File.join("vendor", vendor_name, "lib")].first ||
    Dir[File.join("vendor", "#{vendor_name}*", "lib")].first ||
    Dir[File.join("vendor", name, "lib")].first
end

#version_number ⇒ Object 



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# File 'lib/dependencies/dep.rb', line 19

def version_number
  version[/([\d\.]+)$/, 1]
end