func (o ViewOptions) Run(out io.Writer, printer kubectl.ResourcePrinter) error {
config, err := o.loadConfig()
if err != nil {
return err
}
if o.Minify {
if err := clientcmdapi.MinifyConfig(config); err != nil {
return err
}
}
if o.Flatten {
if err := clientcmdapi.FlattenConfig(config); err != nil {
return err
}
} else if !o.RawByteData {
clientcmdapi.ShortenConfig(config)
}
err = printer.PrintObj(config, out)
if err != nil {
return err
}
return nil
}
func (l *ListPodsOptions) runListPods(node *kapi.Node, printer kubectl.ResourcePrinter) error {
labelSelector, err := labels.Parse(l.Options.PodSelector)
if err != nil {
return err
}
fieldSelector := fields.Set{GetPodHostFieldLabel(node.TypeMeta.APIVersion): node.ObjectMeta.Name}.AsSelector()
// Filter all pods that satisfies pod label selector and belongs to the given node
pods, err := l.Options.Kclient.Pods(kapi.NamespaceAll).List(labelSelector, fieldSelector)
if err != nil {
return err
}
fmt.Fprintln(l.Options.Writer, "\nListing matched pods on node: ", node.ObjectMeta.Name, "\n")
printer.PrintObj(pods, l.Options.Writer)
return err
}
func (l *ListPodsOptions) RunListPods(node *kapi.Node) error {
labelSelector, err := labels.Parse(l.Options.PodSelector)
if err != nil {
return err
}
fieldSelector := fields.Set{GetPodHostFieldLabel(node.TypeMeta.APIVersion): node.ObjectMeta.Name}.AsSelector()
// Filter all pods that satisfies pod label selector and belongs to the given node
pods, err := l.Options.Kclient.Pods(kapi.NamespaceAll).List(labelSelector, fieldSelector)
if err != nil {
return err
}
var printerWithHeaders, printerNoHeaders kubectl.ResourcePrinter
if l.Options.CmdPrinterOutput {
printerWithHeaders = l.Options.CmdPrinter
printerNoHeaders = l.Options.CmdPrinter
} else {
printerWithHeaders, printerNoHeaders, err = l.Options.GetPrintersByResource("pod")
if err != nil {
return err
}
}
firstPod := true
for _, pod := range pods.Items {
if firstPod {
fmt.Fprintln(l.Options.Writer, "\nListing matched pods on node: ", node.ObjectMeta.Name, "\n")
printerWithHeaders.PrintObj(&pod, l.Options.Writer)
firstPod = false
} else {
printerNoHeaders.PrintObj(&pod, l.Options.Writer)
}
}
return err
}
// RunEdit contains all the necessary functionality for the OpenShift cli edit command
func RunEdit(fullName string, f *clientcmd.Factory, out io.Writer, cmd *cobra.Command, args []string, filenames util.StringList) error {
var printer kubectl.ResourcePrinter
var ext string
switch format := cmdutil.GetFlagString(cmd, "output"); format {
case "json":
printer = &kubectl.JSONPrinter{}
ext = ".json"
case "yaml":
printer = &kubectl.YAMLPrinter{}
ext = ".yaml"
default:
return cmdutil.UsageError(cmd, "The flag 'output' must be one of yaml|json")
}
cmdNamespace, err := f.DefaultNamespace()
if err != nil {
return err
}
mapper, typer := f.Object()
rmap := &resource.Mapper{
ObjectTyper: typer,
RESTMapper: mapper,
ClientMapper: f.ClientMapperForCommand(),
}
b := resource.NewBuilder(mapper, typer, f.ClientMapperForCommand()).
NamespaceParam(cmdNamespace).DefaultNamespace().
FilenameParam(filenames...).
//SelectorParam(selector).
ResourceTypeOrNameArgs(true, args...).
Latest()
if err != nil {
return err
}
clientConfig, err := f.ClientConfig()
if err != nil {
return err
}
r := b.Flatten().Do()
infos, err := r.Infos()
if err != nil {
return err
}
defaultVersion := cmdutil.OutputVersion(cmd, clientConfig.Version)
results := editResults{}
for {
obj, err := resource.AsVersionedObject(infos, false, defaultVersion)
if err != nil {
return preservedFile(err, results.file, cmd.Out())
}
// TODO: add an annotating YAML printer that can print inline comments on each field,
// including descriptions or validation errors
// generate the file to edit
buf := &bytes.Buffer{}
if err := results.header.WriteTo(buf); err != nil {
return preservedFile(err, results.file, cmd.Out())
}
if err := printer.PrintObj(obj, buf); err != nil {
return preservedFile(err, results.file, cmd.Out())
}
original := buf.Bytes()
// launch the editor
edit := editor.NewDefaultEditor()
edited, file, err := edit.LaunchTempFile("oc-edit-", ext, buf)
if err != nil {
return preservedFile(err, results.file, cmd.Out())
}
// cleanup any file from the previous pass
if len(results.file) > 0 {
os.Remove(results.file)
}
glog.V(4).Infof("User edited:\n%s", string(edited))
lines, err := hasLines(bytes.NewBuffer(edited))
if err != nil {
return preservedFile(err, file, cmd.Out())
}
if bytes.Equal(original, edited) {
if len(results.edit) > 0 {
preservedFile(nil, file, cmd.Out())
} else {
os.Remove(file)
}
fmt.Fprintln(cmd.Out(), "Edit cancelled, no changes made.")
return nil
}
if !lines {
if len(results.edit) > 0 {
preservedFile(nil, file, cmd.Out())
} else {
os.Remove(file)
}
fmt.Fprintln(cmd.Out(), "Edit cancelled, saved file was empty.")
return nil
}
results = editResults{
file: file,
}
// parse the edited file
updates, err := rmap.InfoForData(edited, "edited-file")
if err != nil {
results.header.reasons = append(results.header.reasons, editReason{
head: fmt.Sprintf("The edited file had a syntax error: %v", err),
})
continue
}
visitor := resource.NewFlattenListVisitor(updates, rmap)
// need to make sure the original namespace wasn't changed while editing
if err = visitor.Visit(resource.RequireNamespace(cmdNamespace)); err != nil {
return preservedFile(err, file, cmd.Out())
}
// attempt to calculate a delta for merging conflicts
delta, err := jsonmerge.NewDelta(original, edited)
if err != nil {
glog.V(4).Infof("Unable to calculate diff, no merge is possible: %v", err)
delta = nil
} else {
delta.AddPreconditions(jsonmerge.RequireKeyUnchanged("apiVersion"))
results.delta = delta
results.version = defaultVersion
}
err = visitor.Visit(func(info *resource.Info) error {
data, err := info.Mapping.Codec.Encode(info.Object)
if err != nil {
return err
}
updated, err := resource.NewHelper(info.Client, info.Mapping).Replace(info.Namespace, info.Name, false, data)
if err != nil {
fmt.Fprintln(cmd.Out(), results.AddError(err, info))
return nil
}
info.Refresh(updated, true)
fmt.Fprintf(out, "%s/%s\n", info.Mapping.Resource, info.Name)
return nil
})
if err != nil {
return preservedFile(err, file, cmd.Out())
}
if results.retryable > 0 {
fmt.Fprintf(cmd.Out(), "You can run `%s update -f %s` to try this update again.\n", fullName, file)
return errExit
}
if results.conflict > 0 {
fmt.Fprintf(cmd.Out(), "You must update your local resource version and run `%s update -f %s` to overwrite the remote changes.\n", fullName, file)
return errExit
}
if len(results.edit) == 0 {
if results.notfound == 0 {
os.Remove(file)
} else {
fmt.Fprintf(cmd.Out(), "The edits you made on deleted resources have been saved to %q\n", file)
}
return nil
}
// loop again and edit the remaining items
infos = results.edit
}
return nil
}
