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17 changes: 17 additions & 0 deletions internal/cmd/preview.go
Original file line number Diff line number Diff line change
@@ -1,6 +1,7 @@
package cmd

import (
"encoding/json"
"errors"
"fmt"
"os"
Expand All @@ -26,6 +27,7 @@ func registerPreviewCmd(rootCmd *cobra.Command) {

schemaCmd.AddCommand(schemaCompileCmd)
schemaCompileCmd.Flags().String("out", "", "output filepath; omitting writes to stdout")
schemaCompileCmd.Flags().Bool("json", false, "output schema as JSON")
}

var previewCmd = &cobra.Command{
Expand Down Expand Up @@ -105,6 +107,21 @@ func schemaCompileCmdFunc(cmd *cobra.Command, args []string) error {
// Add a newline at the end for hygiene's sake
terminated := generated + "\n"

if cobrautil.MustGetBool(cmd, "json") {
output := struct {
SchemaText string `json:"schemaText"`
}{
SchemaText: terminated,
}

jsonOutput, err := json.Marshal(output)
if err != nil {
return err
}

terminated = string(jsonOutput)
}

if outputFilepath == "" {
// Print to stdout
fmt.Print(terminated)
Expand Down
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