fix reading api-port from env var

Author: marle3003

config/decoders/decoder_flag.go

@@ -82,6 +82,13 @@ func (f *FlagDecoder) setValue(ctx *context) error {
 		}
 		ctx.element.SetInt(i)
 		return nil
+	case reflect.Int:
+		i, err := strconv.Atoi(ctx.value[0])
+		if err != nil {
+			return fmt.Errorf("parse int64 failed: %v", err)
+		}
+		ctx.element.SetInt(int64(i))
+		return nil
 	case reflect.Bool:
 		b := false
 		if ctx.value[0] == "" {

config/static/static_config_test.go

@@ -2,13 +2,14 @@ package static_test
 
 import (
 	"encoding/json"
-	"github.com/sirupsen/logrus/hooks/test"
-	"github.com/stretchr/testify/require"
 	"mokapi/config/decoders"
 	"mokapi/config/dynamic/provider/file/filetest"
 	"mokapi/config/static"
 	"os"
 	"testing"
+
+	"github.com/sirupsen/logrus/hooks/test"
+	"github.com/stretchr/testify/require"
 )
 
 func TestStaticConfig(t *testing.T) {
@@ -179,6 +180,21 @@ func TestStaticConfig(t *testing.T) {
 				require.Equal(t, "3m", cfg.Providers.Git.Repositories[0].PullInterval)
 			},
 		},
+		{
+			name: "api port as env var",
+			test: func(t *testing.T) {
+				os.Args = append(os.Args, "mokapi.exe")
+				err := os.Setenv("MOKAPI_API_PORT", "1234")
+				require.NoError(t, err)
+				defer os.Unsetenv("MOKAPI_API_PORT")
+
+				cfg := static.Config{}
+				err = decoders.Load([]decoders.ConfigDecoder{&decoders.FlagDecoder{}}, &cfg)
+				require.NoError(t, err)
+
+				require.Equal(t, 1234, cfg.Api.Port)
+			},
+		},
 		{
 			name: "file provider include",
 			test: func(t *testing.T) {