Class: Cid::Datapackage

Inherits:
Object
  • Object
show all
Defined in:
lib/cid/datapackage.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(path) ⇒ Datapackage

Returns a new instance of Datapackage.



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# File 'lib/cid/datapackage.rb', line 10

def initialize(path)
  @path = path
  begin
    @datapackage = JSON.parse(File.new("#{@path}/datapackage.json").read)
  rescue
    return "No datapackage present!"
  end
end

Instance Attribute Details

#json ⇒ Object

Returns the value of attribute json.



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# File 'lib/cid/datapackage.rb', line 8

def json
  @json
end

Instance Method Details

#create ⇒ Object 



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# File 'lib/cid/datapackage.rb', line 19

def create
  # Clear out all the resources
  @datapackage["resources"] = []

  paths = Dir.glob("#{@path}/*/")

  paths.each do |path|
    schema = JSON.parse(File.new(Dir["#{path}/schema.json"][0]).read)

    Dir["#{path}*.csv"].each do |csv|
      @datapackage["resources"] << {
        name: File.basename(csv, ".csv"),
        path: csv.split("/").last(2).join("/"),
        format: "csv",
        mediatype: "text/csv",
        bytes: File.size(csv),
        schema: {
            fields: schema["fields"]
          }
      }
    end
  end

  @json = @datapackage.to_json
end

#publish(token = ) ⇒ Object 



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# File 'lib/cid/datapackage.rb', line 50

def publish(token = ENV['GITHUB_OAUTH_TOKEN'])
  git = Cid::Publish.new(@path, token)
  git.publish
end

#schema_for_file(path) ⇒ Object 



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# File 'lib/cid/datapackage.rb', line 55

def schema_for_file(path)
  begin
    schema = @datapackage["resources"].select { |r| r["path"] == path }.first["schema"]
    Csvlint::Schema.from_json_table(nil, schema)
  rescue NoMethodError
    nil
  end
end

#write ⇒ Object 



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# File 'lib/cid/datapackage.rb', line 45

def write
  self.create if @json.nil?
  File.open("#{@path}/datapackage.json", 'w') { |f| f.write(@json) }
end