An error caused by searching for a dependency that is completely unknown, i.e. has no versions available whatsoever.
An error caused by attempting to fulfil a dependency that was circular
@note This exception will be thrown if and only if a {Vertex} is added to a
{DependencyGraph} that has a {DependencyGraph::Vertex#path_to?} an
existing {DependencyGraph::Vertex}
See Net::HTTPGenericRequest for attributes and methods.
See Net::HTTPGenericRequest for attributes and methods.
A FetchError exception wraps up the various possible IO and HTTP failures that could happen while downloading from the internet.
@!visibility private (see DependencyGraph#add_edge_no_circular)
@!visibility private @see DependencyGraph#detach_vertex_named
Returns the real (absolute) pathname of pathname in the actual filesystem. The real pathname doesn’t contain symlinks or useless dots.
If dir_string is given, it is used as a base directory for interpreting relative pathname instead of the current directory.
The last component of the real pathname can be nonexistent.
Returns all components of the filename given in file_name except the last one (after first stripping trailing separators). The filename can be formed using both File::SEPARATOR and File::ALT_SEPARATOR as the separator when File::ALT_SEPARATOR is not nil.
File.dirname("/home/gumby/work/ruby.rb") #=> "/home/gumby/work"
If level is given, removes the last level components, not only one.
File.dirname("/home/gumby/work/ruby.rb", 2) #=> "/home/gumby" File.dirname("/home/gumby/work/ruby.rb", 4) #=> "/"
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 the real (absolute) pathname of self in the actual filesystem.
Does not contain symlinks or useless dots, .. and ..
The last component of the real pathname can be nonexistent.