59 lines
1.2 KiB
Ruby
59 lines
1.2 KiB
Ruby
module Producer
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module Core
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class Recipe
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RecipeEvaluationError = Class.new(StandardError)
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attr_reader :code, :filepath
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def self.from_file(filepath)
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new(File.read(filepath), filepath)
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end
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def initialize(code, filepath = nil)
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@code = code
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@filepath = filepath
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end
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def evaluate(env)
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dsl = DSL.new(@code).evaluate(env)
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dsl.tasks.map(&:evaluate)
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end
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class DSL
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attr_reader :tasks
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def initialize(code = nil, &block)
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@code = code
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@block = block
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@tasks = []
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end
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def evaluate(env)
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if @code
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instance_eval @code, env.current_recipe.filepath
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else
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instance_eval &@block
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end
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self
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rescue NameError => e
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err = RecipeEvaluationError.new("invalid recipe keyword `#{e.name}'")
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err.set_backtrace e.backtrace.reject { |l| l =~ /\/producer-core\// }
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raise err
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end
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private
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def source(filepath)
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instance_eval File.read("./#{filepath}.rb")
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end
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def task(name, &block)
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@tasks << Task.new(name, &block)
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end
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end
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end
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end
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end
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