docs(goctl): goctl 1.3.4 migration note (#1780)

* docs(goctl): goctl 1.3.4 migration note

* adds a simple lang check
* adds migration notes

* chore: remove i18n

* chore: remove todo

tools/goctl/model/sql/command/migrationnotes/v1.3.4_test.go

@@ -0,0 +1,75 @@
+package migrationnotes
+
+import (
+	"io/fs"
+	"io/ioutil"
+	"os"
+	"path"
+	"path/filepath"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func Test_needShow1_3_4(t *testing.T) {
+	root, err := os.MkdirTemp("", "goctl-model")
+	require.NoError(t, err)
+	defer os.RemoveAll(root)
+
+	dir1 := path.Join(root, "dir1")
+	require.NoError(t, os.Mkdir(dir1, fs.ModePerm))
+	ioutil.WriteFile(filepath.Join(dir1, "foo_gen.go"), nil, fs.ModePerm)
+
+	dir2 := path.Join(root, "dir2")
+	require.NoError(t, os.Mkdir(dir2, fs.ModePerm))
+	ioutil.WriteFile(filepath.Join(dir2, "foomodel.go"), nil, fs.ModePerm)
+
+	dir3 := path.Join(root, "dir3")
+	require.NoError(t, os.Mkdir(dir3, fs.ModePerm))
+	ioutil.WriteFile(filepath.Join(dir3, "irrelevant.go"), nil, fs.ModePerm)
+
+	type args struct {
+		dir   string
+		style string
+	}
+	tests := []struct {
+		name    string
+		args    args
+		want    bool
+		wantErr bool
+	}{
+		{
+			name: "dir that contains *_gen.go should return false",
+			args: args{
+				dir: dir1,
+			},
+			want: false,
+		},
+		{
+			name: "dir that contains *model.go without *_gen.go should return true",
+			args: args{
+				dir: dir2,
+			},
+			want: true,
+		},
+		{
+			name: "dir that only contains irrelevant files should return false",
+			args: args{
+				dir: dir3,
+			},
+			want: false,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got, err := needShow1_3_4(tt.args.dir, tt.args.style)
+			if (err != nil) != tt.wantErr {
+				t.Errorf("needShow1_3_4() error = %v, wantErr %v", err, tt.wantErr)
+				return
+			}
+			if got != tt.want {
+				t.Errorf("needShow1_3_4() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}