fix: quickstart wrong package when go.mod exists in parent dir (#2048)

* chore: fix typo

* fix: quickstart in dir with go.mod

* fix: runner failed

* chore: refine code

* chore: simplify quickstart mono

tools/goctl/pkg/golang/format.go

@@ -0,0 +1,12 @@
+package golang
+
+import goformat "go/format"
+
+func FormatCode(code string) string {
+	ret, err := goformat.Source([]byte(code))
+	if err != nil {
+		return code
+	}
+
+	return string(ret)
+}

tools/goctl/pkg/golang/path.go

@@ -0,0 +1,36 @@
+package golang
+
+import (
+	"path/filepath"
+	"strings"
+
+	"github.com/zeromicro/go-zero/tools/goctl/util/ctx"
+	"github.com/zeromicro/go-zero/tools/goctl/util/pathx"
+)
+
+func GetParentPackage(dir string) (string, error) {
+	abs, err := filepath.Abs(dir)
+	if err != nil {
+		return "", err
+	}
+
+	projectCtx, err := ctx.Prepare(abs)
+	if err != nil {
+		return "", err
+	}
+
+	// fix https://github.com/zeromicro/go-zero/issues/1058
+	wd := projectCtx.WorkDir
+	d := projectCtx.Dir
+	same, err := pathx.SameFile(wd, d)
+	if err != nil {
+		return "", err
+	}
+
+	trim := strings.TrimPrefix(projectCtx.WorkDir, projectCtx.Dir)
+	if same {
+		trim = strings.TrimPrefix(strings.ToLower(projectCtx.WorkDir), strings.ToLower(projectCtx.Dir))
+	}
+
+	return filepath.ToSlash(filepath.Join(projectCtx.Path, trim)), nil
+}