misc/reboot: move to cmd/internal/bootstrap_test

This is the last test run from misc by dist.

For #37486.

Change-Id: I1a70ded29ba0de548c9a16611ba987a258121e80
Reviewed-on: https://go-review.googlesource.com/c/go/+/493606
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Run-TryBot: Austin Clements <austin@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>

3 files changed, 0 insertions, 282 deletions

diff --git a/misc/reboot/experiment_toolid_test.go b/misc/reboot/experiment_toolid_test.go
deleted file mode 100644
index 87a828e32f..0000000000
--- a/misc/reboot/experiment_toolid_test.go
+++ /dev/null
@@ -1,101 +0,0 @@
-// 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.
-
-//go:build explicit
-// +build explicit
-
-// Package experiment_toolid_test verifies that GOEXPERIMENT settings built
-// into the toolchain influence tool ids in the Go command.
-// This test requires bootstrapping the toolchain twice, so it's very expensive.
-// It must be run explicitly with -tags=explicit.
-// Verifies golang.org/issue/33091.
-package reboot_test
-
-import (
-	"bytes"
-	"os"
-	"os/exec"
-	"path/filepath"
-	"runtime"
-	"testing"
-)
-
-func TestExperimentToolID(t *testing.T) {
-	// Set up GOROOT
-	goroot, err := os.MkdirTemp("", "experiment-goroot")
-	if err != nil {
-		t.Fatal(err)
-	}
-	defer os.RemoveAll(goroot)
-
-	gorootSrc := filepath.Join(goroot, "src")
-	if err := overlayDir(gorootSrc, filepath.Join(runtime.GOROOT(), "src")); err != nil {
-		t.Fatal(err)
-	}
-
-	if err := os.WriteFile(filepath.Join(goroot, "VERSION"), []byte("go1.999"), 0666); err != nil {
-		t.Fatal(err)
-	}
-	env := append(os.Environ(), "GOROOT=", "GOROOT_BOOTSTRAP="+runtime.GOROOT())
-
-	// Use a clean cache.
-	gocache, err := os.MkdirTemp("", "experiment-gocache")
-	if err != nil {
-		t.Fatal(err)
-	}
-	defer os.RemoveAll(gocache)
-	env = append(env, "GOCACHE="+gocache)
-
-	// Build the toolchain without GOEXPERIMENT.
-	var makeScript string
-	switch runtime.GOOS {
-	case "windows":
-		makeScript = "make.bat"
-	case "plan9":
-		makeScript = "make.rc"
-	default:
-		makeScript = "make.bash"
-	}
-	makeScriptPath := filepath.Join(runtime.GOROOT(), "src", makeScript)
-	runCmd(t, gorootSrc, env, makeScriptPath)
-
-	// Verify compiler version string.
-	goCmdPath := filepath.Join(goroot, "bin", "go")
-	if runtime.GOOS == "windows" {
-		goCmdPath += ".exe"
-	}
-	gotVersion := bytes.TrimSpace(runCmd(t, gorootSrc, env, goCmdPath, "tool", "compile", "-V=full"))
-	wantVersion := []byte(`compile version go1.999`)
-	if !bytes.Equal(gotVersion, wantVersion) {
-		t.Errorf("compile version without experiment: got %q, want %q", gotVersion, wantVersion)
-	}
-
-	// Build a package in a mode not handled by the make script.
-	runCmd(t, gorootSrc, env, goCmdPath, "build", "-race", "archive/tar")
-
-	// Rebuild the toolchain with GOEXPERIMENT.
-	env = append(env, "GOEXPERIMENT=fieldtrack")
-	runCmd(t, gorootSrc, env, makeScriptPath)
-
-	// Verify compiler version string.
-	gotVersion = bytes.TrimSpace(runCmd(t, gorootSrc, env, goCmdPath, "tool", "compile", "-V=full"))
-	wantVersion = []byte(`compile version go1.999 X:fieldtrack,framepointer`)
-	if !bytes.Equal(gotVersion, wantVersion) {
-		t.Errorf("compile version with experiment: got %q, want %q", gotVersion, wantVersion)
-	}
-
-	// Build the same package. We should not get a cache conflict.
-	runCmd(t, gorootSrc, env, goCmdPath, "build", "-race", "archive/tar")
-}
-
-func runCmd(t *testing.T, dir string, env []string, path string, args ...string) []byte {
-	cmd := exec.Command(path, args...)
-	cmd.Dir = dir
-	cmd.Env = env
-	out, err := cmd.Output()
-	if err != nil {
-		t.Fatal(err)
-	}
-	return out
-}
diff --git a/misc/reboot/overlaydir_test.go b/misc/reboot/overlaydir_test.go
deleted file mode 100644
index 71faf0936b..0000000000
--- a/misc/reboot/overlaydir_test.go
+++ /dev/null
@@ -1,85 +0,0 @@
-// 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
-
-import (
-	"io"
-	"io/fs"
-	"os"
-	"path/filepath"
-	"strings"
-)
-
-// overlayDir makes a minimal-overhead copy of srcRoot in which new files may be added.
-//
-// TODO: Once we no longer need to support the misc module in GOPATH mode,
-// factor this function out into a package to reduce duplication.
-func overlayDir(dstRoot, srcRoot string) error {
-	dstRoot = filepath.Clean(dstRoot)
-	if err := os.MkdirAll(dstRoot, 0777); err != nil {
-		return err
-	}
-
-	srcRoot, err := filepath.Abs(srcRoot)
-	if err != nil {
-		return err
-	}
-
-	return filepath.WalkDir(srcRoot, func(srcPath string, entry fs.DirEntry, err error) error {
-		if err != nil || srcPath == srcRoot {
-			return err
-		}
-		if filepath.Base(srcPath) == "testdata" {
-			// We're just building, so no need to copy those.
-			return fs.SkipDir
-		}
-
-		suffix := strings.TrimPrefix(srcPath, srcRoot)
-		for len(suffix) > 0 && suffix[0] == filepath.Separator {
-			suffix = suffix[1:]
-		}
-		dstPath := filepath.Join(dstRoot, suffix)
-
-		info, err := entry.Info()
-		perm := info.Mode() & os.ModePerm
-		if info.Mode()&os.ModeSymlink != 0 {
-			info, err = os.Stat(srcPath)
-			if err != nil {
-				return err
-			}
-			perm = info.Mode() & os.ModePerm
-		}
-
-		// Always make copies of directories.
-		// If we add a file in the overlay, we don't want to add it in the original.
-		if info.IsDir() {
-			return os.MkdirAll(dstPath, perm|0200)
-		}
-
-		// If we can use a hard link, do that instead of copying bytes.
-		// Go builds don't like symlinks in some cases, such as go:embed.
-		if err := os.Link(srcPath, dstPath); err == nil {
-			return nil
-		}
-
-		// Otherwise, copy the bytes.
-		src, err := os.Open(srcPath)
-		if err != nil {
-			return err
-		}
-		defer src.Close()
-
-		dst, err := os.OpenFile(dstPath, os.O_WRONLY|os.O_CREATE|os.O_EXCL, perm)
-		if err != nil {
-			return err
-		}
-
-		_, err = io.Copy(dst, src)
-		if closeErr := dst.Close(); err == nil {
-			err = closeErr
-		}
-		return err
-	})
-}
diff --git a/misc/reboot/reboot_test.go b/misc/reboot/reboot_test.go
deleted file mode 100644
index 94d61e000e..0000000000
--- a/misc/reboot/reboot_test.go
+++ /dev/null
@@ -1,96 +0,0 @@
-// 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 (
-	"fmt"
-	"io"
-	"os"
-	"os/exec"
-	"path/filepath"
-	"runtime"
-	"strings"
-	"testing"
-	"time"
-)
-
-func TestRepeatBootstrap(t *testing.T) {
-	if testing.Short() {
-		t.Skipf("skipping test that rebuilds the entire toolchain")
-	}
-
-	realGoroot, err := filepath.Abs(filepath.Join("..", ".."))
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	// To ensure that bootstrapping doesn't unexpectedly depend
-	// on the Go repo's git metadata, add a fake (unreadable) git
-	// directory above the simulated GOROOT.
-	// This mimics the configuration one much have when
-	// building from distro-packaged source code
-	// (see https://go.dev/issue/54852).
-	parent := t.TempDir()
-	dotGit := filepath.Join(parent, ".git")
-	if err := os.Mkdir(dotGit, 000); err != nil {
-		t.Fatal(err)
-	}
-
-	overlayStart := time.Now()
-
-	goroot := filepath.Join(parent, "goroot")
-
-	gorootSrc := filepath.Join(goroot, "src")
-	if err := overlayDir(gorootSrc, filepath.Join(realGoroot, "src")); err != nil {
-		t.Fatal(err)
-	}
-
-	gorootLib := filepath.Join(goroot, "lib")
-	if err := overlayDir(gorootLib, filepath.Join(realGoroot, "lib")); err != nil {
-		t.Fatal(err)
-	}
-
-	t.Logf("GOROOT 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"
-	}
-
-	var stdout strings.Builder
-	cmd := exec.Command(filepath.Join(goroot, "src", makeScript))
-	cmd.Dir = gorootSrc
-	cmd.Env = append(cmd.Environ(), "GOROOT=", "GOROOT_FINAL=", "GOROOT_BOOTSTRAP="+realGoroot)
-	cmd.Stderr = os.Stderr
-	cmd.Stdout = io.MultiWriter(os.Stdout, &stdout)
-	if err := cmd.Run(); err != nil {
-		t.Fatal(err)
-	}
-
-	// Test that go.dev/issue/42563 hasn't regressed.
-	t.Run("PATH reminder", func(t *testing.T) {
-		var want string
-		switch gorootBin := filepath.Join(goroot, "bin"); runtime.GOOS {
-		default:
-			want = fmt.Sprintf("*** You need to add %s to your PATH.", gorootBin)
-		case "plan9":
-			want = fmt.Sprintf("*** You need to bind %s before /bin.", gorootBin)
-		}
-		if got := stdout.String(); !strings.Contains(got, want) {
-			t.Errorf("reminder %q is missing from %s stdout:\n%s", want, makeScript, got)
-		}
-	})
-}