GreaterOrEqualTo returns a validator that enforces input versions are greater than or equal to a given version.

Must is a helper that wraps a call to a function returning (*Version, error) and panics if error is non-nil.

NewConstraint will parse one or more constraints from the given constraint string.

NewVersion parses the given version and returns a new Version.

ErrConstraintFailed is returned by validators.

VersionRegexpRaw is the raw regular expression string used for testing the validity of a version.

Constraint represents a single constraint for a version, such as ">= 1.0".

Version represents a single version.

Collection is a type that implements the sort.Interface interface so that versions can be sorted.

Constraints is a slice of constraints.