Break utils package into subpackages.

internal/utils/dbidentifier/dbidentifier.go

@@ -0,0 +1,24 @@
+package dbidentifier
+
+import (
+	"github.com/go-jet/jet/v2/internal/3rdparty/snaker"
+	"strings"
+)
+
+// ToGoIdentifier converts database identifier to Go identifier.
+func ToGoIdentifier(databaseIdentifier string) string {
+	return snaker.SnakeToCamel(replaceInvalidChars(databaseIdentifier))
+}
+
+// ToGoFileName converts database identifier to Go file name.
+func ToGoFileName(databaseIdentifier string) string {
+	return strings.ToLower(replaceInvalidChars(databaseIdentifier))
+}
+
+func replaceInvalidChars(str string) string {
+	str = strings.Replace(str, " ", "_", -1)
+	str = strings.Replace(str, "-", "_", -1)
+	str = strings.Replace(str, ".", "_", -1)
+
+	return str
+}

internal/utils/dbidentifier/dbidentifier_test.go

@@ -0,0 +1,25 @@
+package dbidentifier
+
+import (
+	"github.com/stretchr/testify/require"
+	"testing"
+)
+
+func TestToGoIdentifier(t *testing.T) {
+	require.Equal(t, ToGoIdentifier(""), "")
+	require.Equal(t, ToGoIdentifier("uuid"), "UUID")
+	require.Equal(t, ToGoIdentifier("col1"), "Col1")
+	require.Equal(t, ToGoIdentifier("PG-13"), "Pg13")
+	require.Equal(t, ToGoIdentifier("13_pg"), "13Pg")
+
+	require.Equal(t, ToGoIdentifier("mytable"), "Mytable")
+	require.Equal(t, ToGoIdentifier("MYTABLE"), "Mytable")
+	require.Equal(t, ToGoIdentifier("MyTaBlE"), "MyTaBlE")
+	require.Equal(t, ToGoIdentifier("myTaBlE"), "MyTaBlE")
+
+	require.Equal(t, ToGoIdentifier("my_table"), "MyTable")
+	require.Equal(t, ToGoIdentifier("MY_TABLE"), "MyTable")
+	require.Equal(t, ToGoIdentifier("My_Table"), "MyTable")
+	require.Equal(t, ToGoIdentifier("My Table"), "MyTable")
+	require.Equal(t, ToGoIdentifier("My-Table"), "MyTable")
+}