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operation_waiter.go
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operation_waiter.go
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package compute
import (
"fmt"
"strings"
"github.com/genevieve/leftovers/gcp/common"
gcpcompute "google.golang.org/api/compute/v1"
)
type operationWaiter struct {
op *gcpcompute.Operation
service *gcpcompute.Service
project string
logger logger
}
func NewOperationWaiter(op *gcpcompute.Operation, service *gcpcompute.Service, project string, logger logger) operationWaiter {
return operationWaiter{
op: op,
service: service,
project: project,
logger: logger,
}
}
func (w *operationWaiter) Wait() error {
state := common.NewState(w.logger, w.refreshFunc())
raw, err := state.Wait()
if err != nil {
return fmt.Errorf("Waiting for operation to complete: %s", err)
}
result, ok := raw.(*gcpcompute.Operation)
if ok && result.Error != nil && len(result.Error.Errors) > 0 {
return fmt.Errorf("Operation error: %s", result.Error.Errors[0].Message)
}
return nil
}
func (c *operationWaiter) refreshFunc() common.StateRefreshFunc {
return func() (interface{}, string, error) {
var op *gcpcompute.Operation
var err error
if c.op.Zone != "" {
zoneURLParts := strings.Split(c.op.Zone, "/")
zone := zoneURLParts[len(zoneURLParts)-1]
op, err = c.service.ZoneOperations.Get(c.project, zone, c.op.Name).Do()
} else if c.op.Region != "" {
regionURLParts := strings.Split(c.op.Region, "/")
region := regionURLParts[len(regionURLParts)-1]
op, err = c.service.RegionOperations.Get(c.project, region, c.op.Name).Do()
} else {
op, err = c.service.GlobalOperations.Get(c.project, c.op.Name).Do()
}
if err != nil {
return nil, "", fmt.Errorf("Refreshing operation request: %s", err)
}
return op, op.Status, nil
}
}