1// Copyright 2019 The Go Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5//go:build go1.12
6// +build go1.12
7
8package testenv
9
10import "runtime/debug"
11
12func packageMainIsDevelModule() bool {
13	info, ok := debug.ReadBuildInfo()
14	if !ok {
15		// Most test binaries currently lack build info, but this should become more
16		// permissive once https://golang.org/issue/33976 is fixed.
17		return true
18	}
19
20	// Note: info.Main.Version describes the version of the module containing
21	// package main, not the version of “the main module”.
22	// See https://golang.org/issue/33975.
23	return info.Main.Version == "(devel)"
24}
25
26func init() {
27	packageMainIsDevel = packageMainIsDevelModule
28}
29