edky 0.1.1

Convert Ed25519 public keys between various encoding formats.
Documentation 
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abort("Expected Ruby 3.4+, but got #{RUBY_VERSION}.") if RUBY_VERSION < '3.4.0'

require 'csv'  # `gem install csv`

def edky(*args) = `cargo run --quiet --features=cli -- #{args.map(&:to_s).map(&:inspect).join(' ')}`.split("\n")

FORMATS = edky(:list).map(&:to_sym).freeze
SAMPLES = CSV.table('../data/samples.csv')
  .inject({}) { |hash, row| hash[row[:format].to_sym] = row[:sample]; hash }
  .freeze

task :default => :check

desc "Check all #{FORMATS.size}×#{FORMATS.size}=#{FORMATS.size**2} format conversions"
task check: %w[../data/samples.csv] do |t|
  failures = []
  FORMATS.each do |from|
    FORMATS.each do |to|
      input = SAMPLES[from]
      args = [:convert, "--from", from, "--to", to, input]
      output = edky(*args)
      if $?.success? && output.size == 1 && output[0] == SAMPLES[to]
        p [:Ok, from, to, *output]
      else
        p [:Err, from, to, *output]
        failures << [from, to]
      end
    end
  end
  abort("Failures: #{failures.inspect}") unless failures.empty?
end