Module: HowIs::Frontmatter

Defined in:
lib/how_is/frontmatter.rb

Class Method Summary collapse

Class Method Details

.generate(frontmatter, report_data) ⇒ Object

Generates YAML frontmatter, as is used in Jekyll and other blog engines.

E.g.,

generate_frontmatter({'foo' => "bar %{baz}"}, {'baz' => "asdf"})

> “—nfoo: bar asdfn”



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# File 'lib/how_is/frontmatter.rb', line 12

def self.generate(frontmatter, report_data)
  return "" if frontmatter.nil?

  frontmatter = convert_keys(frontmatter, :to_s)
  report_data = convert_keys(report_data, :to_sym)

  frontmatter = frontmatter.map { |k, v|
    # Sometimes report_data has unused keys, which generates a warning, but
    # we're okay with it.
    v = silence_warnings { v % report_data }

    [k, v]
  }.to_h

  YAML.dump(frontmatter) + "---\n\n"
end