yq/cmd/new.go

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package cmd
import (
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"github.com/mikefarah/yq/v3/pkg/yqlib"
errors "github.com/pkg/errors"
"github.com/spf13/cobra"
)
func createNewCmd() *cobra.Command {
var cmdNew = &cobra.Command{
Use: "new [path] [value]",
Aliases: []string{"n"},
Short: "yq n [--script/-s script_file] a.b.c newValue",
Example: `
yq new 'a.b.c' cat
yq n 'a.b.c' --tag '!!str' true # force 'true' to be interpreted as a string instead of bool
yq n 'a.b[+]' cat
yq n -- '--key-starting-with-dash' cat # need to use '--' to stop processing arguments as flags
yq n --script create_script.yaml
`,
Long: `Creates a new yaml w.r.t the given path and value.
Outputs to STDOUT
Create Scripts:
Note that you can give a create script to perform more sophisticated yaml. This follows the same format as the update script.
`,
RunE: newProperty,
}
cmdNew.PersistentFlags().StringVarP(&writeScript, "script", "s", "", "yaml script for creating yaml")
cmdNew.PersistentFlags().StringVarP(&customTag, "tag", "t", "", "set yaml tag (e.g. !!int)")
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cmdNew.PersistentFlags().StringVarP(&customStyle, "style", "", "", "formatting style of the value: single, double, folded, flow, literal, tagged")
cmdNew.PersistentFlags().StringVarP(&anchorName, "anchorName", "", "", "anchor name")
cmdNew.PersistentFlags().BoolVarP(&makeAlias, "makeAlias", "", false, "create an alias using the value as the anchor name")
return cmdNew
}
func newProperty(cmd *cobra.Command, args []string) error {
var badArgsMessage = "Must provide <path_to_update> <value>"
if len(args) != 2 {
return errors.New(badArgsMessage)
}
var updateCommands, updateCommandsError = readUpdateCommands(args, 2, badArgsMessage)
if updateCommandsError != nil {
return updateCommandsError
}
newNode := lib.New(updateCommands[0].Path)
for _, updateCommand := range updateCommands {
errorUpdating := lib.Update(&newNode, updateCommand, true)
if errorUpdating != nil {
return errorUpdating
}
}
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var encoder = yqlib.NewYamlEncoder(cmd.OutOrStdout(), indent, colorsEnabled)
return encoder.Encode(&newNode)
}