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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,6 +1,7 @@ | ||
| *.sw[pq] | ||
| tags | ||
| .idea | ||
| .godev | ||
| /local | ||
| /spiff | ||
| /spiff++ | ||
|
|
||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,136 @@ | ||
| package cmd | ||
|
|
||
| import ( | ||
| "errors" | ||
| "fmt" | ||
| "io/ioutil" | ||
| "log" | ||
| "os" | ||
| "path" | ||
|
|
||
| "github.com/spf13/cobra" | ||
|
|
||
| "github.com/mandelsoft/spiff/dynaml" | ||
| "github.com/mandelsoft/spiff/legacy/candiedyaml" | ||
| "github.com/mandelsoft/spiff/yaml" | ||
| ) | ||
|
|
||
| // convertCmd represents the merge command | ||
| var convertCmd = &cobra.Command{ | ||
| Use: "convert", | ||
| Aliases: []string{"c"}, | ||
| Short: "Convert template", | ||
| Long: `A given template file is normalized and converted to json or yaml.`, | ||
| Args: func(cmd *cobra.Command, args []string) error { | ||
| if len(args) != 1 { | ||
| return errors.New("requires at one arg") | ||
| } | ||
| return nil | ||
| }, | ||
| Run: func(cmd *cobra.Command, args []string) { | ||
| convert(false, args[0], asJSON, split, outputPath, selection) | ||
| }, | ||
| } | ||
|
|
||
| func init() { | ||
| rootCmd.AddCommand(convertCmd) | ||
|
|
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| convertCmd.Flags().BoolVar(&asJSON, "json", false, "print output in json format") | ||
| convertCmd.Flags().StringVar(&outputPath, "path", "", "output is taken from given path") | ||
| convertCmd.Flags().BoolVar(&split, "split", false, "if the output is alist it will be split into separate documents") | ||
| convertCmd.Flags().StringArrayVar(&selection, "select", []string{}, "filter dedicated output fields") | ||
| } | ||
|
|
||
| func convert(stdin bool, templateFilePath string, json, split bool, subpath string, selection []string) { | ||
| var templateFile []byte | ||
| var err error | ||
|
|
||
| if templateFilePath == "-" { | ||
| templateFile, err = ioutil.ReadAll(os.Stdin) | ||
| stdin = true | ||
| } else { | ||
| templateFile, err = ReadFile(templateFilePath) | ||
| } | ||
|
|
||
| if err != nil { | ||
| log.Fatalln(fmt.Sprintf("error reading template [%s]:", path.Clean(templateFilePath)), err) | ||
| } | ||
|
|
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| templateYAMLs, err := yaml.ParseMulti(templateFilePath, templateFile) | ||
| if err != nil { | ||
| log.Fatalln(fmt.Sprintf("error parsing template [%s]:", path.Clean(templateFilePath)), err) | ||
| } | ||
|
|
||
| result := [][]byte{} | ||
| count := 0 | ||
| for no, templateYAML := range templateYAMLs { | ||
| doc := "" | ||
| if len(templateYAMLs) > 1 { | ||
| doc = fmt.Sprintf(" (document %d)", no+1) | ||
| } | ||
| var bytes []byte | ||
| if templateYAML.Value() != nil { | ||
| count++ | ||
| flowed := templateYAML | ||
| if subpath != "" { | ||
| comps := dynaml.PathComponents(subpath, false) | ||
| node, ok := yaml.FindR(true, flowed, comps...) | ||
| if !ok { | ||
| log.Fatalln(fmt.Sprintf("path %q not found%s", subpath, doc)) | ||
| } | ||
| flowed = node | ||
| } | ||
|
|
||
| if len(selection) > 0 { | ||
| new := map[string]yaml.Node{} | ||
| for _, p := range selection { | ||
| comps := dynaml.PathComponents(p, false) | ||
| node, ok := yaml.FindR(true, flowed, comps...) | ||
| if !ok { | ||
| log.Fatalln(fmt.Sprintf("path %q not found%s", subpath, doc)) | ||
| } | ||
| new[comps[len(comps)-1]] = node | ||
|
|
||
| } | ||
| flowed = yaml.NewNode(new, "") | ||
| } | ||
| if split { | ||
| if list, ok := flowed.Value().([]yaml.Node); ok { | ||
| for _, d := range list { | ||
| if json { | ||
| bytes, err = yaml.ToJSON(d) | ||
| } else { | ||
| bytes, err = candiedyaml.Marshal(d) | ||
| } | ||
| if err != nil { | ||
| log.Fatalln(fmt.Sprintf("error marshalling manifest%s:", doc), err) | ||
| } | ||
| result = append(result, bytes) | ||
| } | ||
| continue | ||
| } | ||
| } | ||
| if json { | ||
| bytes, err = yaml.ToJSON(flowed) | ||
| } else { | ||
| bytes, err = candiedyaml.Marshal(flowed) | ||
| } | ||
| if err != nil { | ||
| log.Fatalln(fmt.Sprintf("error marshalling manifest%s:", doc), err) | ||
| } | ||
| } | ||
| result = append(result, bytes) | ||
| } | ||
|
|
||
| for _, bytes := range result { | ||
| if !json && (len(result) > 1 || len(bytes) == 0) { | ||
| fmt.Println("---") | ||
| } | ||
| if bytes != nil { | ||
| fmt.Print(string(bytes)) | ||
| if json { | ||
| fmt.Println() | ||
| } | ||
| } | ||
| } | ||
| } |
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