Class: Bibliothecary::Parsers::Hackage

Inherits:
Object
  • Object
show all
Includes:
Analyser
Defined in:
lib/bibliothecary/parsers/hackage.rb

Class Method Summary collapse

Methods included from Analyser

create_analysis, create_error_analysis, included

Class Method Details

.mapping ⇒ Object 



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# File 'lib/bibliothecary/parsers/hackage.rb', line 9

def self.mapping
  {
    match_extension(".cabal") => {
      kind: 'manifest',
      parser: :parse_cabal
    },
    match_extension("cabal.config") => {
      kind: 'lockfile',
      parser: :parse_cabal_config
    }
  }
end

.parse_cabal(file_contents) ⇒ Object

Raises:



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# File 'lib/bibliothecary/parsers/hackage.rb', line 22

def self.parse_cabal(file_contents)
  headers = {
    'Content-Type' => "text/plain;charset=utf-8"
  }

  response = Typhoeus.post("#{Bibliothecary.configuration.cabal_parser_host}/parse", headers: headers, body: file_contents)

  raise Bibliothecary::RemoteParsingError.new("Http Error #{response.response_code} when contacting: #{Bibliothecary.configuration.cabal_parser_host}/parse", response.response_code) unless response.success?
  JSON.parse(response.body, symbolize_names: true)
end

.parse_cabal_config(file_contents) ⇒ Object 



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# File 'lib/bibliothecary/parsers/hackage.rb', line 33

def self.parse_cabal_config(file_contents)
  manifest = DebControl::ControlFileBase.parse(file_contents)
  deps = manifest.first['constraints'].delete("\n").split(',').map(&:strip)
  deps.map do |dependency|
    dep = dependency.delete("==").split(' ')
    {
      name: dep[0],
      requirement: dep[1] || '*',
      type: 'runtime'
    }
  end
end