Module: YAMLScript::LibYS

Extended by:
Fiddle::Importer
Defined in:
lib/yamlscript.rb

Overview

A low-level interface to the native library

Class Method Summary collapse

Class Method Details

.extension ⇒ Object 



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# File 'lib/yamlscript.rb', line 29

def self.extension
  case RUBY_PLATFORM
  when /darwin/
    'dylib'
  when /linux/
    'so'
  when /mingw|mswin/
    'dll'
  else
    raise Error, "Unsupported platform #{RUBY_PLATFORM} for yamlscript."
  end
end

.find_libys_path ⇒ Object

Find the libys shared library file path

Raises:



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# File 'lib/yamlscript.rb', line 65

def self.find_libys_path
  name = libys_name
  path = ld_library_paths.map {
    |dir| File.join(dir, name) }.detect { |file| File.exist?(file)
  }

  vers = YAMLSCRIPT_VERSION
  raise Error, <<-ERROR unless path

Shared library file `#{name}` not found
Try: curl https://yamlscript.org/install | VERSION=#{vers} LIB=1 bash
See: https://github.com/yaml/yamlscript/wiki/Installing-YAMLScript
ERROR

  path
end

.ld_library_paths ⇒ Object

Returns an array of library paths extracted from the LD_LIBRARY_PATH environment variable (PATH on Windows). If the environment variable is not set will return an array with /usr/local/lib only.



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# File 'lib/yamlscript.rb', line 52

def self.ld_library_paths
  if windows?
    paths = ENV.fetch('PATH', '').split(File::PATH_SEPARATOR)
    home = ENV.fetch('USERPROFILE', ENV.fetch('HOME', ''))
  else
    paths = ENV.fetch('LD_LIBRARY_PATH', '').split(':')
    paths << '/usr/local/lib'
    home = ENV.fetch('HOME', '')
  end
  paths << home + '/.local/lib'
end

.libys_name ⇒ Object 



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# File 'lib/yamlscript.rb', line 42

def self.libys_name
  return 'libys.dll' if windows?

  "libys.#{extension}.#{YAMLSCRIPT_VERSION}"
end

.windows? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/yamlscript.rb', line 25

def self.windows?
  RUBY_PLATFORM.match?(/mingw|mswin/)
end