wisski-cloud-distillery/internal/wisski/update.go
2022-11-16 13:07:14 +01:00

47 lines
1.2 KiB
Go

package wisski
import (
"time"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/meta"
"github.com/FAU-CDI/wisski-distillery/pkg/environment"
"github.com/tkw1536/goprogram/exit"
"github.com/tkw1536/goprogram/stream"
)
var errBlindUpdateFailed = exit.Error{
Message: "Failed to run blind update script for instance %q: exited with code %s",
ExitCode: exit.ExitGeneric,
}
// BlinUpdate performs a blind update of the given instance
func (wisski *WissKI) BlindUpdate(io stream.IOStream) error {
code, err := wisski.Shell(io, "/runtime/blind_update.sh")
if err != nil {
return errBlindUpdateFailed.WithMessageF(wisski.Slug, environment.ExecCommandError)
}
if code != 0 {
return errBlindUpdateFailed.WithMessageF(wisski.Slug, code)
}
return wisski.setLastUpdate()
}
var lastUpdate = meta.StorageFor[int64]("lastUpdate")
func (wisski *WissKI) LastUpdate() (t time.Time, err error) {
epoch, err := lastUpdate(wisski.storage()).Get()
if err == meta.ErrMetadatumNotSet {
return t, nil
}
if err != nil {
return t, err
}
// and turn it into time!
return time.Unix(epoch, 0), nil
}
func (wisski *WissKI) setLastUpdate() error {
return lastUpdate(wisski.storage()).Set(time.Now().Unix())
}