func getSchemaAndValidate(c schemaClient, data []byte, prefix, groupVersion, cacheDir string, delegate validation.Schema) (err error) {
var schemaData []byte
var firstSeen bool
fullDir, err := substituteUserHome(cacheDir)
if err != nil {
return err
}
cacheFile := path.Join(fullDir, prefix, groupVersion, schemaFileName)
if len(cacheDir) != 0 {
if schemaData, err = ioutil.ReadFile(cacheFile); err != nil && !os.IsNotExist(err) {
return err
}
}
if schemaData == nil {
firstSeen = true
schemaData, err = downloadSchemaAndStore(c, cacheDir, fullDir, cacheFile, prefix, groupVersion)
if err != nil {
return err
}
}
schema, err := validation.NewSwaggerSchemaFromBytes(schemaData, delegate)
if err != nil {
return err
}
err = schema.ValidateBytes(data)
if _, ok := err.(validation.TypeNotFoundError); ok && !firstSeen {
// As a temporary hack, kubectl would re-get the schema if validation
// fails for type not found reason.
// TODO: runtime-config settings needs to make into the file's name
schemaData, err = downloadSchemaAndStore(c, cacheDir, fullDir, cacheFile, prefix, groupVersion)
if err != nil {
return err
}
schema, err := validation.NewSwaggerSchemaFromBytes(schemaData, delegate)
if err != nil {
return err
}
return schema.ValidateBytes(data)
}
return err
}
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
}
normalEditInfos, err := r.Infos()
if err != nil {
return err
}
var (
windowsLineEndings = cmdutil.GetFlagBool(cmd, "windows-line-endings")
edit = editor.NewDefaultEditor(f.EditorEnvs())
)
editFn := func(info *resource.Info, err error) error {
var (
results = editResults{}
original = []byte{}
edited = []byte{}
file string
)
containsError := false
var infos []*resource.Info
for {
switch editMode {
case NormalEditMode:
infos = normalEditInfos
case EditBeforeCreateMode:
infos = []*resource.Info{info}
default:
err = fmt.Errorf("Not supported edit mode %q", editMode)
}
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
}
}
}
switch editMode {
// If doing normal edit we cannot use Visit because we need to edit a list for convenience. Ref: #20519
case NormalEditMode:
return editFn(nil, nil)
// If doing an edit before created, we don't want a list and instead want the normal behavior as kubectl create.
case EditBeforeCreateMode:
return r.Visit(editFn)
default:
return fmt.Errorf("Not supported edit mode %q", editMode)
}
}