// ReleaseVersion looks for the value of VERSION_ID in the content of
// the os-release. If the value is not found, the file is not found, or
// an error occurs reading the file, an empty string is returned.
func ReleaseVersion() string {
release, err := jujuos.ReadOSRelease(osReleaseFile)
if err != nil {
return ""
}
return release["VERSION_ID"]
}
func readSeries() (string, error) {
values, err := jujuos.ReadOSRelease(osReleaseFile)
if err != nil {
return "unknown", err
}
updateSeriesVersions()
return seriesFromOSRelease(values)
}