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util.go
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util.go
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package util
import (
"fmt"
"strconv"
"strings"
kapi "k8s.io/kubernetes/pkg/api"
"k8s.io/kubernetes/pkg/labels"
"github.com/golang/glog"
buildapi "github.com/openshift/origin/pkg/build/api"
buildclient "github.com/openshift/origin/pkg/build/client"
)
const (
// NoBuildLogsMessage reports that no build logs are available
NoBuildLogsMessage = "No logs are available."
)
// GetBuildName returns name of the build pod.
func GetBuildName(pod *kapi.Pod) string {
if pod == nil {
return ""
}
return pod.Annotations[buildapi.BuildAnnotation]
}
// GetInputReference returns the From ObjectReference associated with the
// BuildStrategy.
func GetInputReference(strategy buildapi.BuildStrategy) *kapi.ObjectReference {
switch {
case strategy.SourceStrategy != nil:
return &strategy.SourceStrategy.From
case strategy.DockerStrategy != nil:
return strategy.DockerStrategy.From
case strategy.CustomStrategy != nil:
return &strategy.CustomStrategy.From
default:
return nil
}
}
// IsBuildComplete returns whether the provided build is complete or not
func IsBuildComplete(build *buildapi.Build) bool {
return build.Status.Phase != buildapi.BuildPhaseRunning && build.Status.Phase != buildapi.BuildPhasePending && build.Status.Phase != buildapi.BuildPhaseNew
}
// IsPaused returns true if the provided BuildConfig is paused and cannot be used to create a new Build
func IsPaused(bc *buildapi.BuildConfig) bool {
return strings.ToLower(bc.Annotations[buildapi.BuildConfigPausedAnnotation]) == "true"
}
// BuildNumber returns the given build number.
func BuildNumber(build *buildapi.Build) (int64, error) {
annotations := build.GetAnnotations()
if stringNumber, ok := annotations[buildapi.BuildNumberAnnotation]; ok {
return strconv.ParseInt(stringNumber, 10, 64)
}
return 0, fmt.Errorf("build %s/%s does not have %s annotation", build.Namespace, build.Name, buildapi.BuildNumberAnnotation)
}
// BuildRunPolicy returns the scheduling policy for the build based on the
// "queued" label.
func BuildRunPolicy(build *buildapi.Build) buildapi.BuildRunPolicy {
labels := build.GetLabels()
if value, found := labels[buildapi.BuildRunPolicyLabel]; found {
switch value {
case "Parallel":
return buildapi.BuildRunPolicyParallel
case "Serial":
return buildapi.BuildRunPolicySerial
case "SerialLatestOnly":
return buildapi.BuildRunPolicySerialLatestOnly
}
}
glog.V(5).Infof("Build %s/%s does not have start policy label set, using default (Serial)", build.Namespace, build.Name)
return buildapi.BuildRunPolicySerial
}
// BuildNameForConfigVersion returns the name of the version-th build
// for the config that has the provided name.
func BuildNameForConfigVersion(name string, version int) string {
return fmt.Sprintf("%s-%d", name, version)
}
// BuildConfigSelector returns a label Selector which can be used to find all
// builds for a BuildConfig.
func BuildConfigSelector(name string) labels.Selector {
return labels.Set{buildapi.BuildConfigLabel: buildapi.LabelValue(name)}.AsSelector()
}
// BuildConfigSelectorDeprecated returns a label Selector which can be used to find
// all builds for a BuildConfig that use the deprecated labels.
func BuildConfigSelectorDeprecated(name string) labels.Selector {
return labels.Set{buildapi.BuildConfigLabelDeprecated: name}.AsSelector()
}
type buildFilter func(buildapi.Build) bool
// BuildConfigBuilds return a list of builds for the given build config.
// Optionally you can specify a filter function to select only builds that
// matches your criteria.
func BuildConfigBuilds(c buildclient.BuildLister, namespace, name string, filterFunc buildFilter) (*buildapi.BuildList, error) {
result, err := c.List(namespace, kapi.ListOptions{
LabelSelector: BuildConfigSelector(name),
})
if err != nil {
return nil, err
}
if filterFunc == nil {
return result, nil
}
filteredList := &buildapi.BuildList{TypeMeta: result.TypeMeta, ListMeta: result.ListMeta}
for _, b := range result.Items {
if filterFunc(b) {
filteredList.Items = append(filteredList.Items, b)
}
}
return filteredList, nil
}
// ConfigNameForBuild returns the name of the build config from a
// build name.
func ConfigNameForBuild(build *buildapi.Build) string {
if build == nil {
return ""
}
if build.Annotations != nil {
if _, exists := build.Annotations[buildapi.BuildConfigAnnotation]; exists {
return build.Annotations[buildapi.BuildConfigAnnotation]
}
}
if _, exists := build.Labels[buildapi.BuildConfigLabel]; exists {
return build.Labels[buildapi.BuildConfigLabel]
}
return build.Labels[buildapi.BuildConfigLabelDeprecated]
}
// VersionForBuild returns the version from the provided build name.
// If no version can be found, 0 is returned to indicate no version.
func VersionForBuild(build *buildapi.Build) int {
if build == nil {
return 0
}
versionString := build.Annotations[buildapi.BuildNumberAnnotation]
version, err := strconv.Atoi(versionString)
if err != nil {
return 0
}
return version
}
func BuildDeepCopy(build *buildapi.Build) (*buildapi.Build, error) {
objCopy, err := kapi.Scheme.DeepCopy(build)
if err != nil {
return nil, err
}
copied, ok := objCopy.(*buildapi.Build)
if !ok {
return nil, fmt.Errorf("expected Build, got %#v", objCopy)
}
return copied, nil
}