Module: LogicaCompiler::Util

Defined in:
lib/logica_compiler/util.rb

Class Method Summary collapse

Class Method Details

.command_candidates(cmd) ⇒ Object 



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# File 'lib/logica_compiler/util.rb', line 20

def command_candidates(cmd)
  cmd = cmd.to_s
  candidates = [cmd]
  return candidates unless Gem.win_platform? && File.extname(cmd).empty?

  pathext = ENV.fetch("PATHEXT", "").split(";").reject(&:empty?)
  pathext = %w[.exe .bat .cmd] if pathext.empty?
  pathext.map { |ext| "#{cmd}#{ext}" }
end

.executable_file?(path) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/logica_compiler/util.rb', line 30

def executable_file?(path)
  File.file?(path) && File.executable?(path)
end

.find_executable_in_dir(dir, cmd) ⇒ Object 



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# File 'lib/logica_compiler/util.rb', line 34

def find_executable_in_dir(dir, cmd)
  dir = dir.to_s
  command_candidates(cmd).each do |candidate|
    path = File.join(dir, candidate)
    return path if executable_file?(path)
  end
  nil
end

.path_like?(value) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/logica_compiler/util.rb', line 7

def path_like?(value)
  s = value.to_s
  return false if s.empty?
  return true if s.start_with?(".", "/", "~")

  separators = [File::SEPARATOR, File::ALT_SEPARATOR].compact.uniq
  separators.any? { |sep| s.include?(sep) }
end

.venv_bin_dir ⇒ Object 



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# File 'lib/logica_compiler/util.rb', line 16

def venv_bin_dir
  Gem.win_platform? ? "Scripts" : "bin"
end

.which(cmd) ⇒ Object 



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# File 'lib/logica_compiler/util.rb', line 43

def which(cmd)
  ENV.fetch("PATH", "").split(File::PATH_SEPARATOR).each do |dir|
    path = find_executable_in_dir(dir, cmd)
    return path if path
  end
  nil
end