add custom json package for imports instead encoding/json support

generator/.snapshots/Test118CustomPrefixExampleFile-1.18

@@ -9,7 +9,7 @@
   (string) "",
   (string) (len=8) "import (",
   (string) (len=22) "\t\"database/sql/driver\"",
-  (string) (len=16) "\t\"encoding/json\"",
+  (string) (len=21) "\tjson \"encoding/json\"",
   (string) (len=9) "\t\"errors\"",
   (string) (len=6) "\t\"fmt\"",
   (string) (len=10) "\t\"strconv\"",

generator/.snapshots/Test118CustomPrefixExampleFile-og

@@ -9,7 +9,7 @@
   (string) "",
   (string) (len=8) "import (",
   (string) (len=22) "\t\"database/sql/driver\"",
-  (string) (len=16) "\t\"encoding/json\"",
+  (string) (len=21) "\tjson \"encoding/json\"",
   (string) (len=9) "\t\"errors\"",
   (string) (len=6) "\t\"fmt\"",
   (string) (len=10) "\t\"strconv\"",

generator/.snapshots/TestCustomPrefixExampleFile

@@ -9,7 +9,7 @@
   (string) "",
   (string) (len=8) "import (",
   (string) (len=22) "\t\"database/sql/driver\"",
-  (string) (len=16) "\t\"encoding/json\"",
+  (string) (len=21) "\tjson \"encoding/json\"",
   (string) (len=9) "\t\"errors\"",
   (string) (len=6) "\t\"fmt\"",
   (string) (len=10) "\t\"strconv\"",

generator/enum.tmpl

@@ -13,6 +13,7 @@ package {{.package}}
 
 import (
     "fmt"
+	json "{{.jsonpkg}}"
 )
 {{end -}}
 

generator/generator.go

@@ -45,6 +45,7 @@ type Generator struct {
 	names             bool
 	values            bool
 	leaveSnakeCase    bool
+	jsonPkg           string
 	prefix            string
 	sqlNullInt        bool
 	sqlNullStr        bool
@@ -90,6 +91,7 @@ func NewGenerator() *Generator {
 		fileSet:           token.NewFileSet(),
 		noPrefix:          false,
 		replacementNames:  map[string]string{},
+		jsonPkg:           "encoding/json",
 	}
 
 	funcs := sprig.TxtFuncMap()
@@ -171,6 +173,12 @@ func (g *Generator) WithoutSnakeToCamel() *Generator {
 	return g
 }
 
+// WithJsonPkg is used to add a custom json package to the imports
+func (g *Generator) WithJsonPkg(pkg string) *Generator {
+	g.jsonPkg = pkg
+	return g
+}
+
 // WithPrefix is used to add a custom prefix to the enum constants
 func (g *Generator) WithPrefix(prefix string) *Generator {
 	g.prefix = prefix
@@ -295,6 +303,7 @@ func (g *Generator) Generate(f *ast.File) ([]byte, error) {
 		"buildDate": g.BuildDate,
 		"builtBy":   g.BuiltBy,
 		"buildTags": g.buildTags,
+		"jsonpkg":   g.jsonPkg,
 	})
 	if err != nil {
 		return nil, fmt.Errorf("failed writing header: %w", err)

main.go

@@ -28,6 +28,7 @@ type rootT struct {
 	SQL               bool
 	SQLInt            bool
 	Flag              bool
+	JsonPkg           string
 	Prefix            string
 	Names             bool
 	Values            bool
@@ -102,6 +103,11 @@ func main() {
 				Usage:       "Adds golang flag functions.",
 				Destination: &argv.Flag,
 			},
+			&cli.StringFlag{
+				Name:        "jsonpkg",
+				Usage:       "Custom json package for imports instead encoding/json.",
+				Destination: &argv.JsonPkg,
+			},
 			&cli.StringFlag{
 				Name:        "prefix",
 				Usage:       "Adds a prefix with a user one. If you would like to replace the prefix, then combine this option with --noprefix.",
@@ -227,6 +233,9 @@ func main() {
 				if argv.LeaveSnakeCase {
 					g.WithoutSnakeToCamel()
 				}
+				if argv.JsonPkg != "" {
+					g.WithJsonPkg(argv.JsonPkg)
+				}
 				if argv.Prefix != "" {
 					g.WithPrefix(argv.Prefix)
 				}