for cleanup old bundler files
Looks up the latest specification for dependency
and adds it to the always_install list.
Iterates through the child elements, yielding for each Element
that has a particular attribute set.
the name of the attribute to search for
the value of the attribute
(optional) causes this method to return after yielding for this number of matching children
(optional) if supplied, this is an XPath
that filters the children to check.
doc = Document.new "<a><b @id='1'/><c @id='2'/><d @id='1'/><e/></a>" # Yields b, c, d doc.root.each_element_with_attribute( 'id' ) {|e| p e} # Yields b, d doc.root.each_element_with_attribute( 'id', '1' ) {|e| p e} # Yields b doc.root.each_element_with_attribute( 'id', '1', 1 ) {|e| p e} # Yields d doc.root.each_element_with_attribute( 'id', '1', 0, 'd' ) {|e| p e}
Remove everything in the DependencyList
that matches but doesn’t satisfy items in dependencies
(a hash of gem names to arrays of dependencies).