Module: GPGME::Engine

Defined in:
lib/gpgme/engine.rb

Overview

Convenience methods to check different aspects of the gpg system installation.

Class Method Summary collapse

Class Method Details

.check_version(proto) ⇒ Boolean

Verify that the engine implementing the protocol proto is installed in the system. Can be one of PROTOCOL_OpenPGP or PROTOCOL_CMS.

Examples:

GPGME::Engine.check_version(GPGME::PROTOCOL_OpenPGP) # => true

Returns:

  • (Boolean) —

    true if the engine is installed.



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# File 'lib/gpgme/engine.rb', line 18

def check_version(proto)
  err = GPGME::gpgme_engine_check_version(proto)
  exc = GPGME::error_to_exception(err)
  !exc
end

.dirinfo(what) ⇒ Object

Return the default configuration.

Examples:

GPGME::Engine.dirinfo('homedir')
# => '/home/user/.gnupg"


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# File 'lib/gpgme/engine.rb', line 82

def dirinfo(what)
  GPGME::gpgme_get_dirinfo(what)
end

.home_dir=(home_dir) ⇒ Object

Sets the home dir for the configuration options. This way one could, for example, load the keys from a customized keychain.

Examples:

GPGME::Engine.home_dir = '/tmp'


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# File 'lib/gpgme/engine.rb', line 70

def home_dir=(home_dir)
  current = info.first
  set_info current.protocol, current.file_name, home_dir
end

.info ⇒ Object

Return an array of GPGME::EngineInfo structures of enabled engines.

Examples:

GPGME::Engine.info.first
# => #<GPGME::EngineInfo:0x00000100d4fbd8
       @file_name="/usr/local/bin/gpg",
       @protocol=0,
       @req_version="1.3.0",
       @version="1.4.11">


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# File 'lib/gpgme/engine.rb', line 35

def info
  rinfo = []
  GPGME::gpgme_get_engine_info(rinfo)
  rinfo
end

.set_info(proto, file_name, home_dir) ⇒ Object

Change the default configuration of the crypto engine implementing protocol proto.

Examples:

GPGME::Engine.set_info(GPGME::PROTOCOL_OpenPGP, '/usr/local/bin/gpg', home_dir)

Parameters:

  • proto —

    Can be one of PROTOCOL_OpenPGP or PROTOCOL_CMS.

  • file_name —

    The file name of the executable program implementing the protocol.

  • home_dir —

    The directory name of the configuration directory.



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# File 'lib/gpgme/engine.rb', line 57

def set_info(proto, file_name, home_dir)
  err = GPGME::gpgme_set_engine_info(proto, file_name, home_dir)
  exc = GPGME::error_to_exception(err)
  raise exc if exc
end