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- // Copyright 2019 The Go Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style
- // license that can be found in the LICENSE file.
- // Package reboot_test verifies that the current GOROOT can be used to bootstrap
- // itself.
- package reboot_test
- import (
- "os"
- "os/exec"
- "path/filepath"
- "runtime"
- "testing"
- "time"
- )
- func TestRepeatBootstrap(t *testing.T) {
- if testing.Short() {
- t.Skipf("skipping test that rebuilds the entire toolchain")
- }
- goroot := t.TempDir()
- gorootSrc := filepath.Join(goroot, "src")
- overlayStart := time.Now()
- if err := overlayDir(gorootSrc, filepath.Join(runtime.GOROOT(), "src")); err != nil {
- t.Fatal(err)
- }
- t.Logf("GOROOT/src overlay set up in %s", time.Since(overlayStart))
- if err := os.WriteFile(filepath.Join(goroot, "VERSION"), []byte(runtime.Version()), 0666); err != nil {
- t.Fatal(err)
- }
- var makeScript string
- switch runtime.GOOS {
- case "windows":
- makeScript = "make.bat"
- case "plan9":
- makeScript = "make.rc"
- default:
- makeScript = "make.bash"
- }
- cmd := exec.Command(filepath.Join(runtime.GOROOT(), "src", makeScript))
- cmd.Dir = gorootSrc
- cmd.Env = append(os.Environ(), "GOROOT=", "GOROOT_BOOTSTRAP="+runtime.GOROOT())
- cmd.Stderr = os.Stderr
- cmd.Stdout = os.Stdout
- if err := cmd.Run(); err != nil {
- t.Fatal(err)
- }
- }
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