77 lines
1.9 KiB
Go
77 lines
1.9 KiB
Go
package barrel
|
|
|
|
import (
|
|
"context"
|
|
"io"
|
|
"time"
|
|
|
|
"github.com/FAU-CDI/wisski-distillery/internal/dis/component"
|
|
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/meta"
|
|
"github.com/FAU-CDI/wisski-distillery/internal/status"
|
|
"github.com/FAU-CDI/wisski-distillery/internal/wisski/ingredient"
|
|
"github.com/FAU-CDI/wisski-distillery/internal/wisski/ingredient/locker"
|
|
"github.com/FAU-CDI/wisski-distillery/internal/wisski/ingredient/mstore"
|
|
)
|
|
|
|
// Build builds or rebuilds the barrel connected to this instance.
|
|
//
|
|
// It also logs the current time into the metadata belonging to this instance.
|
|
func (barrel *Barrel) Build(ctx context.Context, progress io.Writer, start bool) error {
|
|
if !barrel.dependencies.Locker.TryLock(ctx) {
|
|
return locker.Locked
|
|
}
|
|
defer barrel.dependencies.Locker.Unlock(ctx)
|
|
|
|
stack := barrel.Stack()
|
|
|
|
var context component.InstallationContext
|
|
|
|
{
|
|
err := stack.Install(ctx, progress, context)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
{
|
|
err := stack.Update(ctx, progress, start)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
// store the current last rebuild
|
|
return barrel.setLastRebuild(ctx)
|
|
}
|
|
|
|
// TODO: Move this to time.Time
|
|
var lastRebuild = mstore.For[int64]("lastRebuild")
|
|
|
|
func (barrel Barrel) LastRebuild(ctx context.Context) (t time.Time, err error) {
|
|
epoch, err := lastRebuild.Get(ctx, barrel.dependencies.MStore)
|
|
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 (barrel *Barrel) setLastRebuild(ctx context.Context) error {
|
|
return lastRebuild.Set(ctx, barrel.dependencies.MStore, time.Now().Unix())
|
|
}
|
|
|
|
type LastRebuildFetcher struct {
|
|
ingredient.Base
|
|
dependencies struct {
|
|
Barrel *Barrel
|
|
}
|
|
}
|
|
|
|
func (lbr *LastRebuildFetcher) Fetch(ctx context.Context, flags ingredient.FetcherFlags, info *status.WissKI) (err error) {
|
|
info.LastRebuild, _ = lbr.dependencies.Barrel.LastRebuild(ctx)
|
|
return
|
|
}
|