versions

func IsConstraint ¶ added in v3.1.0

func IsConstraint(revision string) bool

Returns true if the given revision is not an exact semver and can be parsed as a semver constraint

func IsVersion ¶

func IsVersion(text string) bool

func MaxVersion ¶

func MaxVersion(revision string, tags []string) (string, error)

MaxVersion takes a revision and a list of tags. If the revision is a version, it returns that version, even if it is not in the list of tags. If the revision is not a version, but is also not a constraint, it returns that revision, even if it is not in the list of tags. If the revision is a constraint, it iterates over the list of tags to find the "maximum" tag which satisfies that constraint. If the revision is a constraint, but no tag satisfies that constraint, then it returns an error.