func RunEdit(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string, filenames []string) 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, enforceNamespace, err := f.DefaultNamespace() if err != nil { return err } mapper, typer := f.Object() resourceMapper := &resource.Mapper{ ObjectTyper: typer, RESTMapper: mapper, ClientMapper: resource.ClientMapperFunc(f.ClientForMapping), Decoder: f.Decoder(true), } r := resource.NewBuilder(mapper, typer, resource.ClientMapperFunc(f.ClientForMapping), f.Decoder(true)). NamespaceParam(cmdNamespace).DefaultNamespace(). FilenameParam(enforceNamespace, filenames...). ResourceTypeOrNameArgs(true, args...). Latest(). Flatten(). Do() err = r.Err() if err != nil { return err } infos, err := r.Infos() if err != nil { return err } clientConfig, err := f.ClientConfig() if err != nil { return err } encoder := f.JSONEncoder() windowsLineEndings := cmdutil.GetFlagBool(cmd, "windows-line-endings") edit := editor.NewDefaultEditor(f.EditorEnvs()) defaultVersion, err := cmdutil.OutputVersion(cmd, clientConfig.GroupVersion) if err != nil { return err } results := editResults{} for { objs, err := resource.AsVersionedObjects(infos, defaultVersion.String(), encoder) if err != nil { return preservedFile(err, results.file, out) } // if input object is a list, traverse and edit each item one at a time for _, obj := range objs { // 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{} var w io.Writer = buf if windowsLineEndings { w = util.NewCRLFWriter(w) } if err := results.header.writeTo(w); err != nil { return preservedFile(err, results.file, out) } if err := printer.PrintObj(obj, w); err != nil { return preservedFile(err, results.file, out) } original := buf.Bytes() // launch the editor 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)) lines, err := hasLines(bytes.NewBuffer(edited)) if err != nil { return preservedFile(err, file, out) } // Compare content without comments if bytes.Equal(stripComments(original), stripComments(edited)) { if len(results.edit) > 0 { preservedFile(nil, file, out) } else { os.Remove(file) } fmt.Fprintln(out, "Edit cancelled, no changes made.") continue } if !lines { if len(results.edit) > 0 { preservedFile(nil, file, out) } else { os.Remove(file) } 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 { patched, err := resource.NewHelper(info.Client, info.Mapping).Patch(info.Namespace, info.Name, api.StrategicMergePatchType, patch) if err != nil { fmt.Fprintln(out, results.addError(err, info)) return nil } info.Refresh(patched, true) cmdutil.PrintSuccess(mapper, false, out, info.Mapping.Resource, info.Name, "edited") return nil }) 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) } } } if len(results.edit) == 0 { return nil } // loop again and edit the remaining items infos = results.edit } return nil }
func RunEdit(f *cmdutil.Factory, out, errOut io.Writer, cmd *cobra.Command, args []string, filenames []string) 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, enforceNamespace, err := f.DefaultNamespace() if err != nil { return err } mapper, typer := f.Object() resourceMapper := &resource.Mapper{ ObjectTyper: typer, RESTMapper: mapper, ClientMapper: resource.ClientMapperFunc(f.ClientForMapping), Decoder: f.Decoder(true), } r := resource.NewBuilder(mapper, typer, resource.ClientMapperFunc(f.ClientForMapping), f.Decoder(true)). NamespaceParam(cmdNamespace).DefaultNamespace(). FilenameParam(enforceNamespace, filenames...). ResourceTypeOrNameArgs(true, args...). Latest(). Flatten(). Do() err = r.Err() if err != nil { return err } infos, err := r.Infos() if err != nil { return err } clientConfig, err := f.ClientConfig() if err != nil { return err } encoder := f.JSONEncoder() defaultVersion, err := cmdutil.OutputVersion(cmd, clientConfig.GroupVersion) if err != nil { return err } objs, err := resource.AsVersionedObjects(infos, defaultVersion.String(), encoder) if err != nil { return err } var ( windowsLineEndings = cmdutil.GetFlagBool(cmd, "windows-line-endings") edit = editor.NewDefaultEditor(f.EditorEnvs()) results = editResults{} original = []byte{} edited = []byte{} file string ) outter: for i := range objs { obj := objs[i] // some bookkeeping results.header.flush() containsError := false for { // generate the file to edit buf := &bytes.Buffer{} var w io.Writer = buf if windowsLineEndings { w = util.NewCRLFWriter(w) } if err := results.header.writeTo(w); err != nil { return preservedFile(err, results.file, errOut) } if !containsError { if err := printer.PrintObj(obj, w); err != nil { return preservedFile(err, results.file, errOut) } original = buf.Bytes() } else { // In case of an error, preserve the edited file. // Remove the comments (header) from it since we already // have included the latest header in the buffer above. buf.Write(manualStrip(edited)) } // launch the editor editedDiff := edited edited, file, err = edit.LaunchTempFile(fmt.Sprintf("%s-edit-", path.Base(os.Args[0])), ext, buf) if err != nil { return preservedFile(err, results.file, errOut) } if bytes.Equal(stripComments(editedDiff), stripComments(edited)) { // Ugly hack right here. We will hit this either (1) when we try to // save the same changes we tried to save in the previous iteration // which means our changes are invalid or (2) when we exit the second // time. The second case is more usual so we can probably live with it. // TODO: A less hacky fix would be welcome :) fmt.Fprintln(errOut, "Edit cancelled, no valid changes were saved.") continue outter } // 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)) // Compare content without comments if bytes.Equal(stripComments(original), stripComments(edited)) { os.Remove(file) fmt.Fprintln(errOut, "Edit cancelled, no changes made.") continue outter } 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.") continue outter } 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 := "" err = visitor.Visit(func(info *resource.Info, err error) error { patched, err := resource.NewHelper(info.Client, info.Mapping).Patch(info.Namespace, info.Name, api.StrategicMergePatchType, patch) if err != nil { errorMsg = results.addError(err, info) return err } info.Refresh(patched, true) cmdutil.PrintSuccess(mapper, false, out, info.Mapping.Resource, info.Name, "edited") return nil }) if err == nil { os.Remove(file) continue outter } // 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.Fprintln(errOut, errorMsg) fmt.Fprintf(errOut, "You can run `%s replace -f %s` to try this update again.\n", path.Base(os.Args[0]), file) continue outter } if results.notfound > 0 { fmt.Fprintln(errOut, errorMsg) fmt.Fprintf(errOut, "The edits you made on deleted resources have been saved to %q\n", file) continue outter } // validation error containsError = true } } return nil }
func RunEdit(f *cmdutil.Factory, out, errOut io.Writer, cmd *cobra.Command, args []string, options *EditOptions) 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, enforceNamespace, err := f.DefaultNamespace() if err != nil { return err } mapper, typer := f.Object(cmdutil.GetIncludeThirdPartyAPIs(cmd)) resourceMapper := &resource.Mapper{ ObjectTyper: typer, RESTMapper: mapper, ClientMapper: resource.ClientMapperFunc(f.ClientForMapping), // NB: we use `f.Decoder(false)` to get a plain deserializer for // the resourceMapper, since it's used to read in edits and // we don't want to convert into the internal version when // reading in edits (this would cause us to potentially try to // compare two different GroupVersions). Decoder: f.Decoder(false), } r := resource.NewBuilder(mapper, typer, resource.ClientMapperFunc(f.ClientForMapping), f.Decoder(true)). NamespaceParam(cmdNamespace).DefaultNamespace(). FilenameParam(enforceNamespace, options.Recursive, options.Filenames...). ResourceTypeOrNameArgs(true, args...). Flatten(). Latest(). Do() err = r.Err() if err != nil { return err } infos, err := r.Infos() if err != nil { return err } clientConfig, err := f.ClientConfig() if err != nil { return err } encoder := f.JSONEncoder() defaultVersion, err := cmdutil.OutputVersion(cmd, clientConfig.GroupVersion) if err != nil { return err } originalObj, err := resource.AsVersionedObject(infos, false, defaultVersion, encoder) if err != nil { return err } var ( windowsLineEndings = cmdutil.GetFlagBool(cmd, "windows-line-endings") edit = editor.NewDefaultEditor(f.EditorEnvs()) results = editResults{} original = []byte{} edited = []byte{} file string ) containsError := false for { // infos mutates over time to be the list of things we've tried and failed to edit // this means that our overall list changes over time. objToEdit, err := resource.AsVersionedObject(infos, false, defaultVersion, encoder) if err != nil { return err } // generate the file to edit buf := &bytes.Buffer{} var w io.Writer = buf if windowsLineEndings { w = crlf.NewCRLFWriter(w) } if err := results.header.writeTo(w); err != nil { return preservedFile(err, results.file, errOut) } if !containsError { if err := printer.PrintObj(objToEdit, w); err != nil { return preservedFile(err, results.file, errOut) } original = buf.Bytes() } else { // In case of an error, preserve the edited file. // Remove the comments (header) from it since we already // have included the latest header in the buffer above. buf.Write(manualStrip(edited)) } // launch the editor editedDiff := edited edited, file, err = edit.LaunchTempFile(fmt.Sprintf("%s-edit-", filepath.Base(os.Args[0])), ext, buf) if err != nil { return preservedFile(err, results.file, errOut) } if bytes.Equal(stripComments(editedDiff), stripComments(edited)) { // Ugly hack right here. We will hit this either (1) when we try to // save the same changes we tried to save in the previous iteration // which means our changes are invalid or (2) when we exit the second // time. The second case is more usual so we can probably live with it. // TODO: A less hacky fix would be welcome :) fmt.Fprintln(errOut, "Edit cancelled, no valid changes were saved.") return nil } // 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)) // 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 // if we're editing a list, then navigate the list to find the item that we're currently trying to edit if meta.IsListType(originalObj) { currOriginalObj = nil editObjUID, err := meta.NewAccessor().UID(info.Object) if err != nil { return err } listItems, err := meta.ExtractList(originalObj) if err != nil { return err } // iterate through the list to find the item with the matching UID for i := range listItems { originalObjUID, err := meta.NewAccessor().UID(listItems[i]) if err != nil { return err } if editObjUID == originalObjUID { currOriginalObj = listItems[i] break } } if currOriginalObj == nil { return fmt.Errorf("no original object found for %#v", info.Object) } } originalSerialization, err := runtime.Encode(encoder, currOriginalObj) if err != nil { return err } editedSerialization, err := runtime.Encode(encoder, info.Object) if err != nil { return err } // compute the patch on a per-item basis // use strategic merge to create a patch originalJS, err := yaml.ToJSON(originalSerialization) if err != nil { return err } editedJS, err := yaml.ToJSON(editedSerialization) if err != nil { return err } if reflect.DeepEqual(originalJS, editedJS) { // no edit, so just skip it. cmdutil.PrintSuccess(mapper, false, out, info.Mapping.Resource, info.Name, "skipped") return nil } patch, err := strategicpatch.CreateStrategicMergePatch(originalJS, editedJS, currOriginalObj) // 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 err } 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", msg) return preservedFile(nil, file, errOut) } patched, err := resource.NewHelper(info.Client, info.Mapping).Patch(info.Namespace, info.Name, api.StrategicMergePatchType, patch) if err != nil { fmt.Fprintln(out, results.addError(err, info)) return nil } info.Refresh(patched, true) cmdutil.PrintSuccess(mapper, false, out, info.Mapping.Resource, info.Name, "edited") return nil }) 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 errExit } if results.notfound > 0 { fmt.Fprintf(errOut, "The edits you made on deleted resources have been saved to %q\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 } }
func runEdit(f cmdutil.Factory, out, errOut io.Writer, cmd *cobra.Command, args []string, options *resource.FilenameOptions, editMode EditMode) error { o, err := getPrinter(cmd) if err != nil { return err } mapper, resourceMapper, r, cmdNamespace, err := getMapperAndResult(f, args, options, editMode) if err != nil { return err } clientConfig, err := f.ClientConfig() if err != nil { return err } encoder := f.JSONEncoder() defaultVersion, err := cmdutil.OutputVersion(cmd, clientConfig.GroupVersion) if err != nil { return err } infos, err := r.Infos() if err != nil { return err } var ( windowsLineEndings = cmdutil.GetFlagBool(cmd, "windows-line-endings") edit = editor.NewDefaultEditor(f.EditorEnvs()) ) var ( results = editResults{} original = []byte{} edited = []byte{} file string ) containsError := false for { originalObj, err := resource.AsVersionedObject(infos, false, defaultVersion, encoder) if err != nil { return err } objToEdit := originalObj // generate the file to edit buf := &bytes.Buffer{} var w io.Writer = buf if windowsLineEndings { w = crlf.NewCRLFWriter(w) } if o.addHeader { results.header.writeTo(w) } if !containsError { if err := o.printer.PrintObj(objToEdit, w); err != nil { return preservedFile(err, results.file, errOut) } original = buf.Bytes() } else { // In case of an error, preserve the edited file. // Remove the comments (header) from it since we already // have included the latest header in the buffer above. buf.Write(manualStrip(edited)) } // launch the editor editedDiff := edited edited, file, err = edit.LaunchTempFile(fmt.Sprintf("%s-edit-", filepath.Base(os.Args[0])), o.ext, buf) if err != nil { return preservedFile(err, results.file, errOut) } if editMode == NormalEditMode || containsError { if bytes.Equal(stripComments(editedDiff), stripComments(edited)) { // Ugly hack right here. We will hit this either (1) when we try to // save the same changes we tried to save in the previous iteration // which means our changes are invalid or (2) when we exit the second // time. The second case is more usual so we can probably live with it. // TODO: A less hacky fix would be welcome :) return preservedFile(fmt.Errorf("%s", "Edit cancelled, no valid changes were saved."), file, errOut) } } // 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)) // Apply validation schema, err := f.Validator(cmdutil.GetFlagBool(cmd, "validate"), cmdutil.GetFlagString(cmd, "schema-cache-dir")) if err != nil { return preservedFile(err, file, errOut) } 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 } } }