wisski-cloud-distillery/cmd/blind_update.go
2022-10-03 13:51:55 +02:00

97 lines
3.1 KiB
Go

package cmd
import (
"fmt"
"io"
wisski_distillery "github.com/FAU-CDI/wisski-distillery"
"github.com/FAU-CDI/wisski-distillery/internal/component/instances"
"github.com/FAU-CDI/wisski-distillery/internal/core"
"github.com/FAU-CDI/wisski-distillery/pkg/environment"
"github.com/FAU-CDI/wisski-distillery/pkg/slicesx"
"github.com/tkw1536/goprogram/exit"
"github.com/tkw1536/goprogram/status"
"github.com/tkw1536/goprogram/stream"
)
// BlindUpdate is the 'blind_update' command
var BlindUpdate wisski_distillery.Command = blindUpdate{}
type blindUpdate struct {
Parallel int `short:"p" long:"parallel" description:"run on (at most) this many instances concurrently. 0 for no limit." default:"1"`
Force bool `short:"f" long:"force" description:"force running blind-update even if AutoBlindUpdate is set to false"`
Positionals struct {
Slug []string `positional-arg-name:"SLUG" required:"0" description:"slug of instance(s) to run blind-update in"`
} `positional-args:"true"`
}
func (blindUpdate) Description() wisski_distillery.Description {
return wisski_distillery.Description{
Requirements: core.Requirements{
NeedsDistillery: true,
},
Command: "blind_update",
Description: "Runs the blind update in the provided instances",
}
}
var errBlindUpdateFailed = exit.Error{
Message: "Failed to run blind update script for instance %q: exited with code %s",
ExitCode: exit.ExitGeneric,
}
func (bu blindUpdate) Run(context wisski_distillery.Context) error {
wissKIs, err := context.Environment.Instances().Load(bu.Positionals.Slug...)
if err != nil {
return err
}
if !bu.Force {
wissKIs = slicesx.Filter(wissKIs, func(instance instances.WissKI) bool {
return bool(instance.AutoBlindUpdateEnabled)
})
}
if bu.Parallel == 1 {
return bu.runSequential(wissKIs, context)
}
return bu.runParallel(wissKIs, context)
}
func (bu blindUpdate) runParallel(wissKIs []instances.WissKI, context wisski_distillery.Context) error {
return status.RunErrorGroup(context.Stdout, status.Group[instances.WissKI, error]{
PrefixString: func(item instances.WissKI, index int) string {
return fmt.Sprintf("[instance %q]: ", item.Slug)
},
PrefixAlign: true,
Handler: func(instance instances.WissKI, index int, writer io.Writer) error {
io := stream.NewIOStream(writer, writer, nil, 0)
code, err := instance.Shell(io, "/runtime/blind_update.sh")
if err != nil {
return errBlindUpdateFailed.WithMessageF(instance.Slug, environment.ExecCommandError)
}
if code != 0 {
return errBlindUpdateFailed.WithMessageF(instance.Slug, code)
}
return nil
},
HandlerLimit: bu.Parallel,
}, wissKIs)
}
func (bu blindUpdate) runSequential(wissKIs []instances.WissKI, context wisski_distillery.Context) error {
for _, instance := range wissKIs {
context.EPrintf("Updating instance %s\n", instance.Slug)
code, err := instance.Shell(context.IOStream, "/runtime/blind_update.sh")
if err != nil {
return errBlindUpdateFailed.WithMessageF(instance.Slug, environment.ExecCommandError)
}
if code != 0 {
return errBlindUpdateFailed.WithMessageF(instance.Slug, code)
}
}
return nil
}