debian-mirror-gitlab/tooling/graphql/docs/renderer.rb

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# frozen_string_literal: true
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require_relative 'helper'
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module Tooling
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module Graphql
module Docs
# Gitlab renderer for graphql-docs.
# Uses HAML templates to parse markdown and generate .md files.
# It uses graphql-docs helpers and schema parser, more information in https://github.com/gjtorikian/graphql-docs.
#
# Arguments:
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# schema - the GraphQL schema definition. For GitLab should be: GitlabSchema
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# output_dir: The folder where the markdown files will be saved
# template: The path of the haml template to be parsed
class Renderer
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include Tooling::Graphql::Docs::Helper
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attr_reader :schema
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def initialize(schema, output_dir:, template:)
@output_dir = output_dir
@template = template
@layout = Haml::Engine.new(File.read(template))
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@parsed_schema = GraphQLDocs::Parser.new(schema, {}).parse
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@schema = schema
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@seen = Set.new
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end
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def contents
# Render and remove an extra trailing new line
@contents ||= @layout.render(self).sub!(/\n(?=\Z)/, '')
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end
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def write
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filename = File.join(@output_dir, 'index.md')
FileUtils.mkdir_p(@output_dir)
File.write(filename, contents)
end
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private
def seen_type?(name)
@seen.include?(name)
end
def seen_type!(name)
@seen << name
end
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end
end
end
end