48 lines
1.3 KiB
Go
48 lines
1.3 KiB
Go
package discovery
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import (
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version "github.com/hashicorp/go-version"
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)
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// A VersionStr is a string containing a possibly-invalid representation
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// of a semver version number. Call Parse on it to obtain a real Version
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// object, or discover that it is invalid.
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type VersionStr string
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// Parse transforms a VersionStr into a Version if it is
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// syntactically valid. If it isn't then an error is returned instead.
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func (s VersionStr) Parse() (Version, error) {
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raw, err := version.NewVersion(string(s))
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if err != nil {
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return Version{}, err
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}
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return Version{raw}, nil
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}
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// MustParse transforms a VersionStr into a Version if it is
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// syntactically valid. If it isn't then it panics.
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func (s VersionStr) MustParse() Version {
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ret, err := s.Parse()
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if err != nil {
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panic(err)
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}
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return ret
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}
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// Version represents a version number that has been parsed from
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// a semver string and known to be valid.
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type Version struct {
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// We wrap this here just because it avoids a proliferation of
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// direct go-version imports all over the place, and keeps the
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// version-processing details within this package.
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raw *version.Version
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}
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func (v Version) String() string {
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return v.raw.String()
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}
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func (v Version) NewerThan(other Version) bool {
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return v.raw.GreaterThan(other.raw)
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}
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