mirror of https://github.com/k3s-io/k3s
make kubectl create --edit iterate
ymqytw
parent
5c21cc892c
commit
189348df2b
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@ -143,7 +143,7 @@ func runEdit(f cmdutil.Factory, out, errOut io.Writer, cmd *cobra.Command, args
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return err
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}
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infos, err := r.Infos()
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normalEditInfos, err := r.Infos()
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if err != nil {
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return err
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}
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@ -153,171 +153,193 @@ func runEdit(f cmdutil.Factory, out, errOut io.Writer, cmd *cobra.Command, args
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edit = editor.NewDefaultEditor(f.EditorEnvs())
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)
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var (
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results = editResults{}
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original = []byte{}
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edited = []byte{}
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file string
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)
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editFn := func(info *resource.Info, err error) error {
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var (
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results = editResults{}
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original = []byte{}
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edited = []byte{}
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file string
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)
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containsError := false
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for {
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originalObj, err := resource.AsVersionedObject(infos, false, defaultVersion, encoder)
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if err != nil {
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return err
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}
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containsError := false
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var infos []*resource.Info
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for {
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switch editMode {
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case NormalEditMode:
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infos = normalEditInfos
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case EditBeforeCreateMode:
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infos = []*resource.Info{info}
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default:
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err = fmt.Errorf("Not supported edit mode %q", editMode)
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}
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originalObj, err := resource.AsVersionedObject(infos, false, defaultVersion, encoder)
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if err != nil {
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return err
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}
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objToEdit := originalObj
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objToEdit := originalObj
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// generate the file to edit
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buf := &bytes.Buffer{}
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var w io.Writer = buf
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if windowsLineEndings {
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w = crlf.NewCRLFWriter(w)
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}
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// generate the file to edit
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buf := &bytes.Buffer{}
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var w io.Writer = buf
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if windowsLineEndings {
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w = crlf.NewCRLFWriter(w)
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}
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if o.addHeader {
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results.header.writeTo(w)
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}
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if o.addHeader {
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results.header.writeTo(w)
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}
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if !containsError {
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if err := o.printer.PrintObj(objToEdit, w); err != nil {
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if !containsError {
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if err := o.printer.PrintObj(objToEdit, w); err != nil {
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return preservedFile(err, results.file, errOut)
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}
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original = buf.Bytes()
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} else {
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// In case of an error, preserve the edited file.
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// Remove the comments (header) from it since we already
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// have included the latest header in the buffer above.
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buf.Write(manualStrip(edited))
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}
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// launch the editor
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editedDiff := edited
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edited, file, err = edit.LaunchTempFile(fmt.Sprintf("%s-edit-", filepath.Base(os.Args[0])), o.ext, buf)
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if err != nil {
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return preservedFile(err, results.file, errOut)
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}
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original = buf.Bytes()
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} else {
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// In case of an error, preserve the edited file.
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// Remove the comments (header) from it since we already
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// have included the latest header in the buffer above.
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buf.Write(manualStrip(edited))
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}
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// launch the editor
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editedDiff := edited
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edited, file, err = edit.LaunchTempFile(fmt.Sprintf("%s-edit-", filepath.Base(os.Args[0])), o.ext, buf)
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if err != nil {
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return preservedFile(err, results.file, errOut)
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}
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if editMode == NormalEditMode || containsError {
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if bytes.Equal(stripComments(editedDiff), stripComments(edited)) {
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// Ugly hack right here. We will hit this either (1) when we try to
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// save the same changes we tried to save in the previous iteration
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// which means our changes are invalid or (2) when we exit the second
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// time. The second case is more usual so we can probably live with it.
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// TODO: A less hacky fix would be welcome :)
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return preservedFile(fmt.Errorf("%s", "Edit cancelled, no valid changes were saved."), file, errOut)
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if editMode == NormalEditMode || containsError {
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if bytes.Equal(stripComments(editedDiff), stripComments(edited)) {
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// Ugly hack right here. We will hit this either (1) when we try to
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// save the same changes we tried to save in the previous iteration
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// which means our changes are invalid or (2) when we exit the second
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// time. The second case is more usual so we can probably live with it.
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// TODO: A less hacky fix would be welcome :)
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return preservedFile(fmt.Errorf("%s", "Edit cancelled, no valid changes were saved."), file, errOut)
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}
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}
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}
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// cleanup any file from the previous pass
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if len(results.file) > 0 {
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os.Remove(results.file)
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}
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glog.V(4).Infof("User edited:\n%s", string(edited))
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// cleanup any file from the previous pass
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if len(results.file) > 0 {
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os.Remove(results.file)
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}
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glog.V(4).Infof("User edited:\n%s", string(edited))
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// Apply validation
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schema, err := f.Validator(cmdutil.GetFlagBool(cmd, "validate"), cmdutil.GetFlagString(cmd, "schema-cache-dir"))
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if err != nil {
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return preservedFile(err, file, errOut)
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}
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err = schema.ValidateBytes(stripComments(edited))
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if err != nil {
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results = editResults{
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file: file,
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}
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containsError = true
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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]))
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continue
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}
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// Compare content without comments
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if bytes.Equal(stripComments(original), stripComments(edited)) {
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os.Remove(file)
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fmt.Fprintln(errOut, "Edit cancelled, no changes made.")
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return nil
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}
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lines, err := hasLines(bytes.NewBuffer(edited))
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if err != nil {
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return preservedFile(err, file, errOut)
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}
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if !lines {
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os.Remove(file)
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fmt.Fprintln(errOut, "Edit cancelled, saved file was empty.")
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return nil
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}
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// Apply validation
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schema, err := f.Validator(cmdutil.GetFlagBool(cmd, "validate"), cmdutil.GetFlagString(cmd, "schema-cache-dir"))
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if err != nil {
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return preservedFile(err, file, errOut)
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}
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err = schema.ValidateBytes(stripComments(edited))
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if err != nil {
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results = editResults{
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file: file,
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}
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containsError = true
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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]))
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continue
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}
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// Compare content without comments
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if bytes.Equal(stripComments(original), stripComments(edited)) {
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os.Remove(file)
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fmt.Fprintln(errOut, "Edit cancelled, no changes made.")
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return nil
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}
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lines, err := hasLines(bytes.NewBuffer(edited))
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if err != nil {
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return preservedFile(err, file, errOut)
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}
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if !lines {
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os.Remove(file)
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fmt.Fprintln(errOut, "Edit cancelled, saved file was empty.")
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return nil
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}
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results = editResults{
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file: file,
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}
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// parse the edited file
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updates, err := resourceMapper.InfoForData(edited, "edited-file")
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if err != nil {
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// syntax error
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containsError = true
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results.header.reasons = append(results.header.reasons, editReason{head: fmt.Sprintf("The edited file had a syntax error: %v", err)})
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continue
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}
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// not a syntax error as it turns out...
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containsError = false
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namespaceVisitor := resource.NewFlattenListVisitor(updates, resourceMapper)
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// need to make sure the original namespace wasn't changed while editing
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if err = namespaceVisitor.Visit(resource.RequireNamespace(cmdNamespace)); err != nil {
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return preservedFile(err, file, errOut)
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}
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// iterate through all items to apply annotations
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mutatedObjects, err := visitAnnotation(cmd, f, updates, resourceMapper, encoder)
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if err != nil {
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return preservedFile(err, file, errOut)
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}
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// if we mutated a list in the visitor, persist the changes on the overall object
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if meta.IsListType(updates.Object) {
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meta.SetList(updates.Object, mutatedObjects)
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}
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switch editMode {
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case NormalEditMode:
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err = visitToPatch(originalObj, updates, f, mapper, resourceMapper, encoder, out, errOut, defaultVersion, &results, file)
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case EditBeforeCreateMode:
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err = visitToCreate(updates, mapper, resourceMapper, out, errOut, defaultVersion, &results, file)
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default:
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err = fmt.Errorf("Not supported edit mode %q", editMode)
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}
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if err != nil {
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return preservedFile(err, results.file, errOut)
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}
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// Handle all possible errors
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//
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// 1. retryable: propose kubectl replace -f
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// 2. notfound: indicate the location of the saved configuration of the deleted resource
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// 3. invalid: retry those on the spot by looping ie. reloading the editor
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if results.retryable > 0 {
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fmt.Fprintf(errOut, "You can run `%s replace -f %s` to try this update again.\n", filepath.Base(os.Args[0]), file)
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return cmdutil.ErrExit
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}
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if results.notfound > 0 {
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fmt.Fprintf(errOut, "The edits you made on deleted resources have been saved to %q\n", file)
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return cmdutil.ErrExit
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}
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if len(results.edit) == 0 {
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if results.notfound == 0 {
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os.Remove(file)
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} else {
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fmt.Fprintf(out, "The edits you made on deleted resources have been saved to %q\n", file)
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// parse the edited file
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updates, err := resourceMapper.InfoForData(edited, "edited-file")
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if err != nil {
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// syntax error
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containsError = true
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results.header.reasons = append(results.header.reasons, editReason{head: fmt.Sprintf("The edited file had a syntax error: %v", err)})
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continue
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}
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return nil
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}
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// not a syntax error as it turns out...
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containsError = false
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if len(results.header.reasons) > 0 {
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containsError = true
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namespaceVisitor := resource.NewFlattenListVisitor(updates, resourceMapper)
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// need to make sure the original namespace wasn't changed while editing
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if err = namespaceVisitor.Visit(resource.RequireNamespace(cmdNamespace)); err != nil {
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return preservedFile(err, file, errOut)
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}
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// iterate through all items to apply annotations
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mutatedObjects, err := visitAnnotation(cmd, f, updates, resourceMapper, encoder)
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if err != nil {
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return preservedFile(err, file, errOut)
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}
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// if we mutated a list in the visitor, persist the changes on the overall object
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if meta.IsListType(updates.Object) {
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meta.SetList(updates.Object, mutatedObjects)
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}
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switch editMode {
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case NormalEditMode:
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err = visitToPatch(originalObj, updates, f, mapper, resourceMapper, encoder, out, errOut, defaultVersion, &results, file)
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case EditBeforeCreateMode:
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err = visitToCreate(updates, mapper, resourceMapper, out, errOut, defaultVersion, &results, file)
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default:
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err = fmt.Errorf("Not supported edit mode %q", editMode)
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}
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if err != nil {
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return preservedFile(err, results.file, errOut)
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}
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// Handle all possible errors
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//
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// 1. retryable: propose kubectl replace -f
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// 2. notfound: indicate the location of the saved configuration of the deleted resource
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// 3. invalid: retry those on the spot by looping ie. reloading the editor
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if results.retryable > 0 {
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fmt.Fprintf(errOut, "You can run `%s replace -f %s` to try this update again.\n", filepath.Base(os.Args[0]), file)
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return cmdutil.ErrExit
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}
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if results.notfound > 0 {
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fmt.Fprintf(errOut, "The edits you made on deleted resources have been saved to %q\n", file)
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return cmdutil.ErrExit
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}
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if len(results.edit) == 0 {
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if results.notfound == 0 {
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os.Remove(file)
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} else {
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fmt.Fprintf(out, "The edits you made on deleted resources have been saved to %q\n", file)
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}
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return nil
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}
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if len(results.header.reasons) > 0 {
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containsError = true
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}
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}
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}
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switch editMode {
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// If doing normal edit we cannot use Visit because we need to edit a list for convenience. Ref: #20519
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case NormalEditMode:
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return editFn(nil, nil)
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// If doing an edit before created, we don't want a list and instead want the normal behavior as kubectl create.
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case EditBeforeCreateMode:
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return r.Visit(editFn)
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default:
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return fmt.Errorf("Not supported edit mode %q", editMode)
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}
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}
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func getPrinter(cmd *cobra.Command) (*editPrinterOptions, error) {
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