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rest.go
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rest.go
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package registry
import (
"fmt"
"time"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/fields"
"k8s.io/apimachinery/pkg/watch"
buildapi "github.com/openshift/origin/pkg/build/apis/build"
buildtypedclient "github.com/openshift/origin/pkg/build/generated/internalclientset/typed/build/internalversion"
)
var (
// ErrUnknownBuildPhase is returned for WaitForRunningBuild if an unknown phase is returned.
ErrUnknownBuildPhase = fmt.Errorf("unknown build phase")
ErrBuildDeleted = fmt.Errorf("build was deleted")
)
// WaitForRunningBuild waits until the specified build is no longer New or Pending. Returns true if
// the build ran within timeout, false if it did not, and an error if any other error state occurred.
// The last observed Build state is returned.
func WaitForRunningBuild(buildClient buildtypedclient.BuildsGetter, build *buildapi.Build, timeout time.Duration) (*buildapi.Build, bool, error) {
fieldSelector := fields.OneTermEqualSelector("metadata.name", build.Name)
options := metav1.ListOptions{FieldSelector: fieldSelector.String(), ResourceVersion: build.ResourceVersion}
w, err := buildClient.Builds(build.Namespace).Watch(options)
if err != nil {
return build, false, err
}
observed := build
_, err = watch.Until(timeout, w, func(event watch.Event) (bool, error) {
obj, ok := event.Object.(*buildapi.Build)
if !ok {
return false, fmt.Errorf("received unknown object while watching for builds: %T", event.Object)
}
observed = obj
if event.Type == watch.Deleted {
return false, ErrBuildDeleted
}
switch obj.Status.Phase {
case buildapi.BuildPhaseRunning, buildapi.BuildPhaseComplete, buildapi.BuildPhaseFailed, buildapi.BuildPhaseError, buildapi.BuildPhaseCancelled:
return true, nil
case buildapi.BuildPhaseNew, buildapi.BuildPhasePending:
default:
return false, ErrUnknownBuildPhase
}
return false, nil
})
if err != nil {
return nil, false, err
}
return observed, true, nil
}