mirror of
https://github.com/inspec/inspec
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2857d07151
The opening and closing mechanic varied between all the various resources. This changes them all to use a HEREDOC with a tilde to remove leading whitespace. This removes the need for the special method to trim the `#print_example` method from shell. Signed-off-by: Franklin Webber <franklin.webber@gmail.com>
56 lines
1.8 KiB
Ruby
56 lines
1.8 KiB
Ruby
# encoding: utf-8
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# Parses a csv document
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# This implementation was inspired by a blog post
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# @see http://technicalpickles.com/posts/parsing-csv-with-ruby
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module Inspec::Resources
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class CsvConfig < JsonConfig
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name 'csv'
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desc 'Use the csv InSpec audit resource to test configuration data in a CSV file.'
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example <<~EXAMPLE
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describe csv('example.csv') do
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its('name') { should eq(['John', 'Alice']) }
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end
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EXAMPLE
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# override the parse method from JsonConfig
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# Assuming a header row of name,col1,col2, it will output an array of hashes like so:
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# [
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# { 'name' => 'row1', 'col1' => 'value1', 'col2' => 'value2' },
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# { 'name' => 'row2', 'col1' => 'value3', 'col2' => 'value4' }
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# ]
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def parse(content)
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require 'csv'
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# convert empty field to nil
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CSV::Converters[:blank_to_nil] = lambda do |field|
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field && field.empty? ? nil : field
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end
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# implicit conversion of values
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csv = CSV.new(content, headers: true, converters: [:all, :blank_to_nil])
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# convert to hash
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csv.to_a.map(&:to_hash)
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rescue => e
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raise Inspec::Exceptions::ResourceFailed, "Unable to parse CSV: #{e.message}"
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end
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# override the value method from JsonConfig
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# The format of the CSV hash as created by #parse is very different
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# than what the YAML, JSON, and INI resources create, so using the
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# #value method from JsonConfig (which uses ObjectTraverser.extract_value)
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# doesn't make sense here.
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def value(key)
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@params.map { |x| x[key.first.to_s] }.compact
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end
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private
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# used by JsonConfig to build up a full to_s method
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# based on whether a file path, content, or command was supplied.
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def resource_base_name
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'CSV'
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end
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end
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end
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