refactor: use go's embedding feature for embedding json schema (#413)

Author: hbagdi

file/codegen/main.go

@@ -1,27 +1,16 @@
 package main
 
 import (
-	"bytes"
 	"encoding/json"
 	"io/ioutil"
 	"log"
 	"reflect"
-	"text/template"
 
 	"github.com/alecthomas/jsonschema"
 	"github.com/kong/deck/file"
 	"github.com/kong/go-kong/kong"
 )
 
-const templateContent = `// Code generated by go generate; DO NOT EDIT.
-package file
-
-const contentSchema = ` + "`{{.Schema}}`\n"
-
-type templateData struct {
-	Schema string
-}
-
 var (
 	// routes and services
 	anyOfNameOrID = []*jsonschema.Type{
@@ -124,18 +113,7 @@ func main() {
 		log.Fatalln(err)
 	}
 
-	tmpl := template.New("codegen")
-	tmpl, err = tmpl.Parse(templateContent)
-	if err != nil {
-		log.Fatalln(err)
-	}
-
-	var buffer bytes.Buffer
-	err = tmpl.Execute(&buffer, templateData{string(jsonSchema)})
-	if err != nil {
-		log.Fatalln(err)
-	}
-	err = ioutil.WriteFile("schema.go", buffer.Bytes(), 0o644)
+	err = ioutil.WriteFile("kong_json_schema.json", jsonSchema, 0o644)
 	if err != nil {
 		log.Fatalln(err)
 	}