// CheckForUpdate checks the equinox.io api if there is an update available
// NOTE: if equinox says there is a new update, but the version number IS NOT
// larger, we interpret that as no update (you may have gotten a newer version
// by building it yourself).
func CheckForUpdate() (*check.Result, error) {
param := check.Params{
AppVersion: Version,
AppId: updateAppID,
Channel: "stable",
}
up, err := update.New().VerifySignatureWithPEM([]byte(updatePubKey))
if err != nil {
return nil, fmt.Errorf("Failed to parse public key: %v", err)
}
res, err := param.CheckForUpdate(updateEndpointURL, up)
if err != nil {
return res, err
}
newer, err := versionIsNewer(res.Version)
if err != nil {
return nil, err
}
if !newer {
return nil, ErrNoUpdateAvailable
}
return res, err
}
// Apply cheks if the running process is able to update itself
// and than updates to the passed release
func Apply(rel *check.Result) error {
if err := update.New().CanUpdate(); err != nil {
return err
}
if err, errRecover := rel.Update(); err != nil {
err = fmt.Errorf("Update failed: %v\n", err)
if errRecover != nil {
err = fmt.Errorf("%s\nRecovery failed! Cause: %v\nYou may need to recover manually", err, errRecover)
}
return err
}
return nil
}