Module: Asciidoctor::Diagram::Which

Defined in:
lib/asciidoctor-diagram/util/which.rb

Class Method Summary collapse

Class Method Details

.which(cmd, options = {}) ⇒ Object 



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# File 'lib/asciidoctor-diagram/util/which.rb', line 5

def self.which(cmd, options = {})
  exts = ENV['PATHEXT'] ? ENV['PATHEXT'].split(';') : ['']

  paths = (options[:path] || []) + (ENV['PATH'] ? ENV['PATH'].split(File::PATH_SEPARATOR) : [])
  paths.each do |path|
    exts.each { |ext|
      exe = File.join(path, "#{cmd}#{ext}")
      return exe if File.executable? exe
    }
  end

  nil
end