Performs various checks before installing the gem such as the install repository is writable and its directories exist, required Ruby and rubygems versions are met and that dependencies are installed.
Version and dependency checks are skipped if this install is forced.
The dependent check will be skipped if the install is ignoring dependencies.
Installs from the gem dependencies files in the :gemdeps option in options, yielding to the block as in install.
If :without_groups is given in the options, those groups in the gem dependencies file are not used. See Gem::Installer for other options.
Extra files to add to RDoc such as README or doc/examples.txt
When the user elects to generate the RDoc documentation for a gem (typically at install time), all the library files are sent to RDoc for processing. This option allows you to have some non-code files included for a more complete set of documentation.
Usage:
spec.extra_rdoc_files = ['README', 'doc/user-guide.txt']
Sets extra_rdoc_files to files, ensuring it is an array. Don’t use this, push onto the array instead.
Choose from a list of options. question is a prompt displayed above the list. list is a list of option strings. Returns the pair [option_name, option_index].
offline mode. read name=value pairs on standard input.
A convenience method, like object_group, but also reformats the Object’s object_id.
@return the previous sibling (nil if unset)
Asks the user to answer question with an answer from the given list.
Add the –prerelease option to the option parser.
Sets IO operations on io to be non-blocking
Sets IO operations on io to be non-blocking
Tokenize string returning the Ruby object
Returns true if the named file is a directory, or a symlink that points at a directory, and false otherwise.
file_name can be an IO object.
File.directory?(".")
Returns an array of the eigenvectors
Puts the connection into binary (image) mode, issues the given server-side command (such as “STOR myfile”), and sends the contents of the file named file to the server. If the optional block is given, it also passes it the data, in chunks of blocksize characters.