returns an integer in (-infty, 0] a number closer to 0 means the dependency is less constraining
dependencies w/ 0 or 1 possibilities (ignoring version requirements) are given very negative values, so they always sort first, before dependencies that are unconstrained
Returns true when it is possible and safe to update the cache directory.
Return the list of all array-oriented instance variables.
Special loader for YAML files. When a Specification object is loaded from a YAML file, it bypasses the normal Ruby object initialization routine (initialize). This method makes up for that and deals with gems of different ages.
input can be anything that YAML.load() accepts: String or IO.
Return the latest specs, optionally including prerelease specs if prerelease is true.
Is name a required attribute?
Required specification attributes
Activate all unambiguously resolved runtime dependencies of this spec. Add any ambiguous dependencies to the unresolved list to be resolved later, as needed.
List of dependencies that are used for development
List of dependencies that will automatically be activated at runtime.
Does a sanity check on the specification.
Raises InvalidSpecificationException if the spec does not pass the checks.
Only runs checks that are considered necessary for the specification to be functional.
Issues a warning for each file to be packaged which is world-readable.
Implementation for Specification#validate_permissions
Regenerates plugin wrappers after removal.
do nothing
Checks the scheme v component against the URI::Parser Regexp for :SCHEME.