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module Rapis |
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class Converter |
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include Rapis::TemplateFunctions |
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CHANGE_SETS = { |
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'x-amazon-apigateway-integration' => 'amazon_apigateway_integration', |
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'$ref' => 'ref' |
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} |
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def to_dsl(hash) |
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dsl = Dslh.deval( |
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hash, |
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exclude_key: to_dsl_exclude_key, |
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key_conv: to_dsl_key_conv, |
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value_conv: to_dsl_value_conv |
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) |
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dsl.gsub!(/^/, ' ').strip! |
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<<-EOS |
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rest_api do |
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#{dsl} |
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end |
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EOS |
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end |
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def to_h(dsl) |
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instance_eval(dsl) |
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@apis |
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end |
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private |
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def to_dsl_exclude_key |
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proc do |k| |
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if !k.is_a?(String) |
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false |
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elsif ['in'].include?(k) |
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true |
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elsif k.include?('/') |
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if k =~ %r{^\/} |
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false |
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else |
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true |
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end |
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elsif ['-', '.'].any? { |i| k.include?(i) } && k != 'x-amazon-apigateway-integration' |
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true |
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else |
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false |
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end |
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end |
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end |
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def to_dsl_key_conv |
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proc do |k| |
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k = k.to_s |
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case k |
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when %r{^\/} |
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item_key_proc k |
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when /^\d{3}$/ |
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code_key_proc k |
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when 'parameters', 'api_key' |
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parameters_key_proc k |
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else |
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CHANGE_SETS.each { |f, t| k = k.gsub(f, t) } |
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k |
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end |
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end |
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end |
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def item_key_proc(k) |
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proc do |v, nested| |
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if nested |
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"item #{k.inspect} #{v}" |
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else |
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"item #{k.inspect}, #{v}" |
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end |
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end |
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end |
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def code_key_proc(k) |
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proc do |v, nested| |
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if nested |
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"code #{k.to_s.inspect} #{v}" |
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else |
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"code #{k.to_s.inspect}, #{v}" |
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end |
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end |
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end |
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def parameters_key_proc(k) |
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proc do |v, _| |
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if v =~ /\n(\s+)/ |
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indent = Regexp.last_match(1) |
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v = instance_eval(v) |
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dsl = "#{k} do\n" |
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if v.is_a?(Array) |
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v.each do |param| |
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dsl << param_to_dsl(param, indent) |
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end |
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else |
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dsl << param_to_dsl(v, indent) |
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end |
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dsl << indent[2..-1] + "end\n" |
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else |
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"#{k} #{v}" |
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end |
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end |
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end |
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def param_to_dsl(param, indent) |
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dsl = indent + "#{param['in']} #{param['name'].inspect} do\n" |
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param.each do |pk, pv| |
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next if %w(in name).include?(pk) |
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dsl << indent |
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dsl += pv.is_a?(String) ? " #{pk} #{pv.inspect}\n" : " #{pk} #{pv}\n" |
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end |
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dsl << indent + "end\n" |
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end |
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def to_dsl_value_conv |
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proc do |v| |
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if v.is_a?(String) && v =~ /\A(?:0|[1-9]\d*)\Z/ |
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v.to_i |
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else |
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v |
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end |
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end |
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end |
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def to_h_exclude_key |
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proc do |_| |
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false |
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end |
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end |
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def to_h_key_conv |
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proc do |k| |
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k = k.to_s |
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CHANGE_SETS.each { |f, t| k = k.gsub(t, f) } |
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k |
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end |
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end |
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def to_h_value_conv |
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proc do |v| |
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case v |
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when Hash, Array, TrueClass, FalseClass |
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v |
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else |
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v.to_s |
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end |
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end |
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end |
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def rest_api(&block) |
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@apis = Dslh.eval( |
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exclude_key: to_h_exclude_key, |
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key_conv: to_h_key_conv, |
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value_conv: to_h_value_conv, |
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allow_empty_args: true, |
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scope_hook: proc { |scope| define_template_func(scope) }, |
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&block |
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) |
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end |
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def define_template_func(scope) |
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scope.instance_eval(<<-EOS) |
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#{template_code_func} |
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#{template_item_func} |
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#{template_api_key_func} |
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#{template_params_func} |
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#{template_include_func} |
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172
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EOS |
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end |
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end |
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end |
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marcy-terui /
rapis
