Golang resource.RequireNamespace函数代码示例

//.........这里部分代码省略.........
				}
				fmt.Fprintln(out, "Edit cancelled, saved file was empty.")
				continue
			}

			results = editResults{
				file: file,
			}

			// parse the edited file
			updates, err := resourceMapper.InfoForData(edited, "edited-file")
			if err != nil {
				return fmt.Errorf("The edited file had a syntax error: %v", err)
			}

			// put configuration annotation in "updates"
			if err := kubectl.CreateOrUpdateAnnotation(cmdutil.GetFlagBool(cmd, cmdutil.ApplyAnnotationsFlag), updates, encoder); err != nil {
				return preservedFile(err, file, out)
			}
			if cmdutil.ShouldRecord(cmd, updates) {
				err = cmdutil.RecordChangeCause(updates.Object, f.Command())
				if err != nil {
					return err
				}
			}
			// encode updates back to "edited" since we'll only generate patch from "edited"
			if edited, err = runtime.Encode(encoder, updates.Object); err != nil {
				return preservedFile(err, file, out)
			}

			visitor := resource.NewFlattenListVisitor(updates, resourceMapper)

			// 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, out)
			}

			// use strategic merge to create a patch
			originalJS, err := yaml.ToJSON(original)
			if err != nil {
				return preservedFile(err, file, out)
			}
			editedJS, err := yaml.ToJSON(edited)
			if err != nil {
				return preservedFile(err, file, out)
			}
			patch, err := strategicpatch.CreateStrategicMergePatch(originalJS, editedJS, obj)
			// TODO: change all jsonmerge to strategicpatch
			// for checking preconditions
			preconditions := []jsonmerge.PreconditionFunc{}
			if err != nil {
				glog.V(4).Infof("Unable to calculate diff, no merge is possible: %v", err)
				return preservedFile(err, file, out)
			} else {
				preconditions = append(preconditions, jsonmerge.RequireKeyUnchanged("apiVersion"))
				preconditions = append(preconditions, jsonmerge.RequireKeyUnchanged("kind"))
				preconditions = append(preconditions, jsonmerge.RequireMetadataKeyUnchanged("name"))
				results.version = defaultVersion
			}

			if hold, msg := jsonmerge.TestPreconditionsHold(patch, preconditions); !hold {
				fmt.Fprintf(out, "error: %s", msg)
				return preservedFile(nil, file, out)
			}

			err = visitor.Visit(func(info *resource.Info, err error) error {

//.........这里部分代码省略.........
		// 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
}

//.........这里部分代码省略.........
		// Compare content without comments
		if bytes.Equal(stripComments(original), stripComments(edited)) {
			os.Remove(file)
			fmt.Fprintln(errOut, "Edit cancelled, no changes made.")
			return nil
		}
		lines, err := hasLines(bytes.NewBuffer(edited))
		if err != nil {
			return preservedFile(err, file, errOut)
		}
		if !lines {
			os.Remove(file)
			fmt.Fprintln(errOut, "Edit cancelled, saved file was empty.")
			return nil
		}

		results = editResults{
			file: file,
		}

		// parse the edited file
		updates, err := resourceMapper.InfoForData(edited, "edited-file")
		if err != nil {
			// syntax error
			containsError = true
			results.header.reasons = append(results.header.reasons, editReason{head: fmt.Sprintf("The edited file had a syntax error: %v", err)})
			continue
		}
		// not a syntax error as it turns out...
		containsError = false

		namespaceVisitor := resource.NewFlattenListVisitor(updates, resourceMapper)
		// need to make sure the original namespace wasn't changed while editing
		if err = namespaceVisitor.Visit(resource.RequireNamespace(cmdNamespace)); err != nil {
			return preservedFile(err, file, errOut)
		}

		mutatedObjects := []runtime.Object{}
		annotationVisitor := resource.NewFlattenListVisitor(updates, resourceMapper)
		// iterate through all items to apply annotations
		if err = annotationVisitor.Visit(func(info *resource.Info, incomingErr error) error {
			// put configuration annotation in "updates"
			if err := kubectl.CreateOrUpdateAnnotation(cmdutil.GetFlagBool(cmd, cmdutil.ApplyAnnotationsFlag), info, encoder); err != nil {
				return err
			}
			if cmdutil.ShouldRecord(cmd, info) {
				if err := cmdutil.RecordChangeCause(info.Object, f.Command()); err != nil {
					return err
				}
			}
			mutatedObjects = append(mutatedObjects, info.Object)

			return nil

		}); err != nil {
			return preservedFile(err, file, errOut)
		}

		// if we mutated a list in the visitor, persist the changes on the overall object
		if meta.IsListType(updates.Object) {
			meta.SetList(updates.Object, mutatedObjects)
		}

		patchVisitor := resource.NewFlattenListVisitor(updates, resourceMapper)
		err = patchVisitor.Visit(func(info *resource.Info, incomingErr error) error {
			currOriginalObj := originalObj

//.........这里部分代码省略.........
			results = editResults{
				file: file,
			}

			// parse the edited file
			updates, err := resourceMapper.InfoForData(edited, "edited-file")
			if err != nil {
				// syntax error
				containsError = true
				results.header.reasons = append(results.header.reasons, editReason{head: fmt.Sprintf("The edited file had a syntax error: %v", err)})
				continue
			}
			// not a syntax error as it turns out...
			containsError = false

			// put configuration annotation in "updates"
			if err := kubectl.CreateOrUpdateAnnotation(cmdutil.GetFlagBool(cmd, cmdutil.ApplyAnnotationsFlag), updates, encoder); err != nil {
				return preservedFile(err, file, errOut)
			}
			if cmdutil.ShouldRecord(cmd, updates) {
				err = cmdutil.RecordChangeCause(updates.Object, f.Command())
				if err != nil {
					return err
				}
			}
			editedCopy := edited
			if editedCopy, err = runtime.Encode(encoder, updates.Object); err != nil {
				return preservedFile(err, file, errOut)
			}

			visitor := resource.NewFlattenListVisitor(updates, resourceMapper)

			// 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, errOut)
			}

			// use strategic merge to create a patch
			originalJS, err := yaml.ToJSON(original)
			if err != nil {
				return preservedFile(err, file, errOut)
			}
			editedJS, err := yaml.ToJSON(editedCopy)
			if err != nil {
				return preservedFile(err, file, errOut)
			}
			patch, err := strategicpatch.CreateStrategicMergePatch(originalJS, editedJS, obj)
			// TODO: change all jsonmerge to strategicpatch
			// for checking preconditions
			preconditions := []jsonmerge.PreconditionFunc{}
			if err != nil {
				glog.V(4).Infof("Unable to calculate diff, no merge is possible: %v", err)
				return preservedFile(err, file, errOut)
			} else {
				preconditions = append(preconditions, jsonmerge.RequireKeyUnchanged("apiVersion"))
				preconditions = append(preconditions, jsonmerge.RequireKeyUnchanged("kind"))
				preconditions = append(preconditions, jsonmerge.RequireMetadataKeyUnchanged("name"))
				results.version = defaultVersion
			}

			if hold, msg := jsonmerge.TestPreconditionsHold(patch, preconditions); !hold {
				fmt.Fprintf(errOut, "error: %s\n", msg)
				return preservedFile(nil, file, errOut)
			}

			errorMsg := ""

// RunEdit contains all the necessary functionality for the OpenShift cli edit command.
func (o *EditOptions) RunEdit() error {
	r := o.builder.Flatten().Do()
	results := editResults{}
	infos, err := r.Infos()
	if err != nil {
		return err
	}
	for {
		obj, err := resource.AsVersionedObject(infos, false, o.version)
		if err != nil {
			return preservedFile(err, results.file, o.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, o.out)
		}
		if err := o.printer.PrintObj(obj, buf); err != nil {
			return preservedFile(err, results.file, o.out)
		}
		original := buf.Bytes()

		// launch the editor
		edit := editor.NewDefaultEditor()
		edited, file, err := edit.LaunchTempFile("oc-edit-", o.ext, buf)
		if err != nil {
			return preservedFile(err, results.file, o.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, o.out)
		}
		if bytes.Equal(original, edited) {
			if len(results.edit) > 0 {
				preservedFile(nil, file, o.out)
			} else {
				os.Remove(file)
			}
			fmt.Fprintln(o.out, "Edit cancelled, no changes made.")
			return nil
		}
		if !lines {
			if len(results.edit) > 0 {
				preservedFile(nil, file, o.out)
			} else {
				os.Remove(file)
			}
			fmt.Fprintln(o.out, "Edit cancelled, saved file was empty.")
			return nil
		}

		results = editResults{
			file: file,
		}

		// parse the edited file
		updates, err := o.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, o.rmap)

		// need to make sure the original namespace wasn't changed while editing
		if err = visitor.Visit(resource.RequireNamespace(o.namespace)); err != nil {
			return preservedFile(err, file, o.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 = o.version
		}

		err = visitor.Visit(func(info *resource.Info, err error) error {
			if err != nil {
				return err
			}
			data, err := info.Mapping.Codec.Encode(info.Object)
			if err != nil {
//.........这里部分代码省略.........

//.........这里部分代码省略.........
		}
		err = schema.ValidateBytes(stripComments(edited))
		if err != nil {
			results = editResults{
				file: file,
			}
			containsError = true
			fmt.Fprintln(out, results.addError(errors.NewInvalid(api.Kind(""), "", field.ErrorList{field.Invalid(nil, "The edited file failed validation", fmt.Sprintf("%v", err))}), infos[0]))
			continue
		}

		// Compare content without comments
		if bytes.Equal(stripComments(original), stripComments(edited)) {
			os.Remove(file)
			fmt.Fprintln(errOut, "Edit cancelled, no changes made.")
			return nil
		}

		lines, err := hasLines(bytes.NewBuffer(edited))
		if err != nil {
			return preservedFile(err, file, errOut)
		}
		if !lines {
			os.Remove(file)
			fmt.Fprintln(errOut, "Edit cancelled, saved file was empty.")
			return nil
		}

		results = editResults{
			file: file,
		}

		// parse the edited file
		updates, err := resourceMapper.InfoForData(edited, "edited-file")
		if err != nil {
			// syntax error
			containsError = true
			results.header.reasons = append(results.header.reasons, editReason{head: fmt.Sprintf("The edited file had a syntax error: %v", err)})
			continue
		}
		// not a syntax error as it turns out...
		containsError = false

		namespaceVisitor := resource.NewFlattenListVisitor(updates, resourceMapper)
		// need to make sure the original namespace wasn't changed while editing
		if err = namespaceVisitor.Visit(resource.RequireNamespace(cmdNamespace)); err != nil {
			return preservedFile(err, file, errOut)
		}

		// iterate through all items to apply annotations
		mutatedObjects, err := visitAnnotation(cmd, f, updates, resourceMapper, encoder)
		if err != nil {
			return preservedFile(err, file, errOut)
		}

		// if we mutated a list in the visitor, persist the changes on the overall object
		if meta.IsListType(updates.Object) {
			meta.SetList(updates.Object, mutatedObjects)
		}

		switch editMode {
		case NormalEditMode:
			err = visitToPatch(originalObj, updates, mapper, resourceMapper, encoder, out, errOut, defaultVersion, &results, file)
		case EditBeforeCreateMode:
			err = visitToCreate(updates, mapper, resourceMapper, out, errOut, defaultVersion, &results, file)
		default:
			err = fmt.Errorf("Not supported edit mode %q", editMode)
		}
		if err != nil {
			return preservedFile(err, results.file, errOut)
		}

		// Handle all possible errors
		//
		// 1. retryable: propose kubectl replace -f
		// 2. notfound: indicate the location of the saved configuration of the deleted resource
		// 3. invalid: retry those on the spot by looping ie. reloading the editor
		if results.retryable > 0 {
			fmt.Fprintf(errOut, "You can run `%s replace -f %s` to try this update again.\n", filepath.Base(os.Args[0]), file)
			return cmdutil.ErrExit
		}
		if results.notfound > 0 {
			fmt.Fprintf(errOut, "The edits you made on deleted resources have been saved to %q\n", file)
			return cmdutil.ErrExit
		}

		if len(results.edit) == 0 {
			if results.notfound == 0 {
				os.Remove(file)
			} else {
				fmt.Fprintf(out, "The edits you made on deleted resources have been saved to %q\n", file)
			}
			return nil
		}

		if len(results.header.reasons) > 0 {
			containsError = true
		}
	}
}

//.........这里部分代码省略.........
		obj, err := resource.AsVersionedObject(infos, false, defaultVersion)
		if err != nil {
			return preservedFile(err, results.file, 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, out)
		}
		if err := printer.PrintObj(obj, buf); err != nil {
			return preservedFile(err, results.file, out)
		}
		original := buf.Bytes()

		// launch the editor
		edit := editor.NewDefaultEditor()
		edited, file, err := edit.LaunchTempFile("kubectl-edit-", ext, buf)
		if err != nil {
			return preservedFile(err, results.file, 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))
		fmt.Printf("User edited:\n%s", string(edited))
		lines, err := hasLines(bytes.NewBuffer(edited))
		if err != nil {
			return preservedFile(err, file, out)
		}
		if rejectSame && bytes.Equal(original, edited) {
			if len(results.edit) > 0 {
				preservedFile(nil, file, out)
			} else {
				os.Remove(file)
			}
			fmt.Fprintln(out, "Edit cancelled, no changes made.")
			return nil
		}
		if !lines {
			if len(results.edit) > 0 {
				preservedFile(nil, file, out)
			} else {
				os.Remove(file)
			}
			fmt.Fprintln(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 {
			return preservedFile(err, file, out)
		}

		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, out)
		}

		err = process(visitor, original, edited, obj, updates, file, &results, mapper, defaultVersion)

		if err != nil {
			return preservedFile(err, file, out)
		}

		if results.retryable > 0 {
			fmt.Fprintf(out, "You can run `kubectl replace -f %s` to try this update again.\n", file)
			return errExit
		}
		if results.conflict > 0 {
			fmt.Fprintf(out, "You must update your local resource version and run `kubectl replace -f %s` to overwrite the remote changes.\n", file)
			return errExit
		}
		if len(results.edit) == 0 {
			if results.notfound == 0 {
				os.Remove(file)
			} else {
				fmt.Fprintf(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
}