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Current Path: /opt/golang/1.22.0/src/os

📁 ..
📄 dir.go(4.4 KB)
📄 dir_darwin.go(3.34 KB)
📄 dir_plan9.go(2.1 KB)
📄 dir_unix.go(5.24 KB)
📄 dir_windows.go(7.17 KB)
📄 dirent_aix.go(759 B)
📄 dirent_dragonfly.go(1.28 KB)
📄 dirent_freebsd.go(1.16 KB)
📄 dirent_js.go(678 B)
📄 dirent_linux.go(1.18 KB)
📄 dirent_netbsd.go(1.16 KB)
📄 dirent_openbsd.go(1.16 KB)
📄 dirent_solaris.go(759 B)
📄 dirent_wasip1.go(1.36 KB)
📄 endian_big.go(244 B)
📄 endian_little.go(304 B)
📄 env.go(3.85 KB)
📄 env_test.go(5.04 KB)
📄 env_unix_test.go(1.22 KB)
📄 error.go(4.76 KB)
📄 error_errno.go(247 B)
📄 error_plan9.go(234 B)
📄 error_posix.go(538 B)
📄 error_test.go(4.92 KB)
📄 error_unix_test.go(1.49 KB)
📄 error_windows_test.go(1.72 KB)
📄 example_test.go(8.39 KB)
📁 exec
📄 exec.go(6.01 KB)
📄 exec_plan9.go(3.27 KB)
📄 exec_posix.go(3.44 KB)
📄 exec_unix.go(2.09 KB)
📄 exec_unix_test.go(999 B)
📄 exec_windows.go(4.57 KB)
📄 exec_windows_test.go(1.78 KB)
📄 executable.go(774 B)
📄 executable_darwin.go(613 B)
📄 executable_dragonfly.go(293 B)
📄 executable_freebsd.go(292 B)
📄 executable_path.go(2.31 KB)
📄 executable_plan9.go(427 B)
📄 executable_procfs.go(904 B)
📄 executable_solaris.go(695 B)
📄 executable_sysctl.go(891 B)
📄 executable_test.go(3.4 KB)
📄 executable_wasm.go(333 B)
📄 executable_windows.go(641 B)
📄 export_linux_test.go(337 B)
📄 export_test.go(433 B)
📄 export_unix_test.go(241 B)
📄 export_windows_test.go(395 B)
📄 fifo_test.go(4.62 KB)
📄 file.go(24.91 KB)
📄 file_mutex_plan9.go(1.81 KB)
📄 file_open_unix.go(397 B)
📄 file_open_wasip1.go(818 B)
📄 file_plan9.go(15.99 KB)
📄 file_posix.go(7.1 KB)
📄 file_unix.go(14.05 KB)
📄 file_wasip1.go(633 B)
📄 file_windows.go(12.65 KB)
📄 getwd.go(2.52 KB)
📄 os_test.go(77.07 KB)
📄 os_unix_test.go(11.47 KB)
📄 os_windows_test.go(41.83 KB)
📄 path.go(2.27 KB)
📄 path_plan9.go(492 B)
📄 path_test.go(2.96 KB)
📄 path_unix.go(1.56 KB)
📄 path_windows.go(5.66 KB)
📄 path_windows_test.go(4.03 KB)
📄 pipe2_unix.go(640 B)
📄 pipe_test.go(12.41 KB)
📄 pipe_unix.go(760 B)
📄 pipe_wasm.go(488 B)
📄 proc.go(2.27 KB)
📄 rawconn.go(993 B)
📄 rawconn_test.go(1.15 KB)
📄 read_test.go(3.2 KB)
📄 readfrom_linux_test.go(20.3 KB)
📄 removeall_at.go(4.91 KB)
📄 removeall_noat.go(3.13 KB)
📄 removeall_test.go(11.96 KB)
📁 signal
📄 stat.go(965 B)
📄 stat_aix.go(1.18 KB)
📄 stat_darwin.go(1.09 KB)
📄 stat_dragonfly.go(1.06 KB)
📄 stat_freebsd.go(1.07 KB)
📄 stat_js.go(1.11 KB)
📄 stat_linux.go(1.06 KB)
📄 stat_netbsd.go(1.07 KB)
📄 stat_openbsd.go(1.06 KB)
📄 stat_plan9.go(2.37 KB)
📄 stat_solaris.go(1.3 KB)
📄 stat_test.go(6.46 KB)
📄 stat_unix.go(1.23 KB)
📄 stat_wasip1.go(956 B)
📄 stat_windows.go(4.93 KB)
📄 sticky_bsd.go(425 B)
📄 sticky_notbsd.go(320 B)
📄 sys.go(294 B)
📄 sys_aix.go(682 B)
📄 sys_bsd.go(466 B)
📄 sys_js.go(313 B)
📄 sys_linux.go(1.04 KB)
📄 sys_plan9.go(453 B)
📄 sys_solaris.go(265 B)
📄 sys_unix.go(493 B)
📄 sys_wasip1.go(309 B)
📄 sys_windows.go(874 B)
📄 tempfile.go(3.8 KB)
📄 tempfile_test.go(5.49 KB)
📁 testdata
📄 timeout_test.go(17.09 KB)
📄 types.go(2.79 KB)
📄 types_plan9.go(797 B)
📄 types_unix.go(776 B)
📄 types_windows.go(10.01 KB)
📁 user
📄 wait6_dragonfly.go(496 B)
📄 wait6_freebsd64.go(547 B)
📄 wait6_freebsd_386.go(544 B)
📄 wait6_freebsd_arm.go(549 B)
📄 wait6_netbsd.go(534 B)
📄 wait_unimp.go(831 B)
📄 wait_wait6.go(781 B)
📄 wait_waitid.go(1.32 KB)
📄 writeto_linux_test.go(4.21 KB)
📄 zero_copy_linux.go(4.38 KB)
📄 zero_copy_stub.go(406 B)

Editing: removeall_test.go

// Copyright 2018 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 os_test

import (
	"bytes"
	"fmt"
	"internal/testenv"
	. "os"
	"path/filepath"
	"runtime"
	"strconv"
	"strings"
	"testing"
)

func TestRemoveAll(t *testing.T) {
	t.Parallel()

tmpDir := t.TempDir()
	if err := RemoveAll(""); err != nil {
		t.Errorf("RemoveAll(\"\"): %v; want nil", err)
	}

file := filepath.Join(tmpDir, "file")
	path := filepath.Join(tmpDir, "_TestRemoveAll_")
	fpath := filepath.Join(path, "file")
	dpath := filepath.Join(path, "dir")

// Make a regular file and remove
	fd, err := Create(file)
	if err != nil {
		t.Fatalf("create %q: %s", file, err)
	}
	fd.Close()
	if err = RemoveAll(file); err != nil {
		t.Fatalf("RemoveAll %q (first): %s", file, err)
	}
	if _, err = Lstat(file); err == nil {
		t.Fatalf("Lstat %q succeeded after RemoveAll (first)", file)
	}

// Make directory with 1 file and remove.
	if err := MkdirAll(path, 0777); err != nil {
		t.Fatalf("MkdirAll %q: %s", path, err)
	}
	fd, err = Create(fpath)
	if err != nil {
		t.Fatalf("create %q: %s", fpath, err)
	}
	fd.Close()
	if err = RemoveAll(path); err != nil {
		t.Fatalf("RemoveAll %q (second): %s", path, err)
	}
	if _, err = Lstat(path); err == nil {
		t.Fatalf("Lstat %q succeeded after RemoveAll (second)", path)
	}

// Make directory with file and subdirectory and remove.
	if err = MkdirAll(dpath, 0777); err != nil {
		t.Fatalf("MkdirAll %q: %s", dpath, err)
	}
	fd, err = Create(fpath)
	if err != nil {
		t.Fatalf("create %q: %s", fpath, err)
	}
	fd.Close()
	fd, err = Create(dpath + "/file")
	if err != nil {
		t.Fatalf("create %q: %s", fpath, err)
	}
	fd.Close()
	if err = RemoveAll(path); err != nil {
		t.Fatalf("RemoveAll %q (third): %s", path, err)
	}
	if _, err := Lstat(path); err == nil {
		t.Fatalf("Lstat %q succeeded after RemoveAll (third)", path)
	}

// Chmod is not supported under Windows or wasip1 and test fails as root.
	if runtime.GOOS != "windows" && runtime.GOOS != "wasip1" && Getuid() != 0 {
		// Make directory with file and subdirectory and trigger error.
		if err = MkdirAll(dpath, 0777); err != nil {
			t.Fatalf("MkdirAll %q: %s", dpath, err)
		}

for _, s := range []string{fpath, dpath + "/file1", path + "/zzz"} {
			fd, err = Create(s)
			if err != nil {
				t.Fatalf("create %q: %s", s, err)
			}
			fd.Close()
		}
		if err = Chmod(dpath, 0); err != nil {
			t.Fatalf("Chmod %q 0: %s", dpath, err)
		}

// No error checking here: either RemoveAll
		// will or won't be able to remove dpath;
		// either way we want to see if it removes fpath
		// and path/zzz. Reasons why RemoveAll might
		// succeed in removing dpath as well include:
		//	* running as root
		//	* running on a file system without permissions (FAT)
		RemoveAll(path)
		Chmod(dpath, 0777)

for _, s := range []string{fpath, path + "/zzz"} {
			if _, err = Lstat(s); err == nil {
				t.Fatalf("Lstat %q succeeded after partial RemoveAll", s)
			}
		}
	}
	if err = RemoveAll(path); err != nil {
		t.Fatalf("RemoveAll %q after partial RemoveAll: %s", path, err)
	}
	if _, err = Lstat(path); err == nil {
		t.Fatalf("Lstat %q succeeded after RemoveAll (final)", path)
	}
}

// Test RemoveAll on a large directory.
func TestRemoveAllLarge(t *testing.T) {
	if testing.Short() {
		t.Skip("skipping in short mode")
	}
	t.Parallel()

tmpDir := t.TempDir()
	path := filepath.Join(tmpDir, "_TestRemoveAllLarge_")

// Make directory with 1000 files and remove.
	if err := MkdirAll(path, 0777); err != nil {
		t.Fatalf("MkdirAll %q: %s", path, err)
	}
	for i := 0; i < 1000; i++ {
		fpath := fmt.Sprintf("%s/file%d", path, i)
		fd, err := Create(fpath)
		if err != nil {
			t.Fatalf("create %q: %s", fpath, err)
		}
		fd.Close()
	}
	if err := RemoveAll(path); err != nil {
		t.Fatalf("RemoveAll %q: %s", path, err)
	}
	if _, err := Lstat(path); err == nil {
		t.Fatalf("Lstat %q succeeded after RemoveAll", path)
	}
}

func TestRemoveAllLongPath(t *testing.T) {
	switch runtime.GOOS {
	case "aix", "darwin", "ios", "dragonfly", "freebsd", "linux", "netbsd", "openbsd", "illumos", "solaris":
		break
	default:
		t.Skip("skipping for not implemented platforms")
	}

prevDir, err := Getwd()
	if err != nil {
		t.Fatalf("Could not get wd: %s", err)
	}

startPath, err := MkdirTemp("", "TestRemoveAllLongPath-")
	if err != nil {
		t.Fatalf("Could not create TempDir: %s", err)
	}
	defer RemoveAll(startPath)

err = Chdir(startPath)
	if err != nil {
		t.Fatalf("Could not chdir %s: %s", startPath, err)
	}

// Removing paths with over 4096 chars commonly fails
	for i := 0; i < 41; i++ {
		name := strings.Repeat("a", 100)

err = Mkdir(name, 0755)
		if err != nil {
			t.Fatalf("Could not mkdir %s: %s", name, err)
		}

err = Chdir(name)
		if err != nil {
			t.Fatalf("Could not chdir %s: %s", name, err)
		}
	}

err = Chdir(prevDir)
	if err != nil {
		t.Fatalf("Could not chdir %s: %s", prevDir, err)
	}

err = RemoveAll(startPath)
	if err != nil {
		t.Errorf("RemoveAll could not remove long file path %s: %s", startPath, err)
	}
}

func TestRemoveAllDot(t *testing.T) {
	prevDir, err := Getwd()
	if err != nil {
		t.Fatalf("Could not get wd: %s", err)
	}
	tempDir, err := MkdirTemp("", "TestRemoveAllDot-")
	if err != nil {
		t.Fatalf("Could not create TempDir: %s", err)
	}
	defer RemoveAll(tempDir)

err = Chdir(tempDir)
	if err != nil {
		t.Fatalf("Could not chdir to tempdir: %s", err)
	}

err = RemoveAll(".")
	if err == nil {
		t.Errorf("RemoveAll succeed to remove .")
	}

err = Chdir(prevDir)
	if err != nil {
		t.Fatalf("Could not chdir %s: %s", prevDir, err)
	}
}

func TestRemoveAllDotDot(t *testing.T) {
	t.Parallel()

tempDir := t.TempDir()
	subdir := filepath.Join(tempDir, "x")
	subsubdir := filepath.Join(subdir, "y")
	if err := MkdirAll(subsubdir, 0777); err != nil {
		t.Fatal(err)
	}
	if err := RemoveAll(filepath.Join(subsubdir, "..")); err != nil {
		t.Error(err)
	}
	for _, dir := range []string{subsubdir, subdir} {
		if _, err := Stat(dir); err == nil {
			t.Errorf("%s: exists after RemoveAll", dir)
		}
	}
}

// Issue #29178.
func TestRemoveReadOnlyDir(t *testing.T) {
	t.Parallel()

tempDir := t.TempDir()
	subdir := filepath.Join(tempDir, "x")
	if err := Mkdir(subdir, 0); err != nil {
		t.Fatal(err)
	}

// If an error occurs make it more likely that removing the
	// temporary directory will succeed.
	defer Chmod(subdir, 0777)

if err := RemoveAll(subdir); err != nil {
		t.Fatal(err)
	}

if _, err := Stat(subdir); err == nil {
		t.Error("subdirectory was not removed")
	}
}

// Issue #29983.
func TestRemoveAllButReadOnlyAndPathError(t *testing.T) {
	switch runtime.GOOS {
	case "js", "wasip1", "windows":
		t.Skipf("skipping test on %s", runtime.GOOS)
	}

if Getuid() == 0 {
		t.Skip("skipping test when running as root")
	}

t.Parallel()

tempDir := t.TempDir()
	dirs := []string{
		"a",
		"a/x",
		"a/x/1",
		"b",
		"b/y",
		"b/y/2",
		"c",
		"c/z",
		"c/z/3",
	}
	readonly := []string{
		"b",
	}
	inReadonly := func(d string) bool {
		for _, ro := range readonly {
			if d == ro {
				return true
			}
			dd, _ := filepath.Split(d)
			if filepath.Clean(dd) == ro {
				return true
			}
		}
		return false
	}

for _, dir := range dirs {
		if err := Mkdir(filepath.Join(tempDir, dir), 0777); err != nil {
			t.Fatal(err)
		}
	}
	for _, dir := range readonly {
		d := filepath.Join(tempDir, dir)
		if err := Chmod(d, 0555); err != nil {
			t.Fatal(err)
		}

// Defer changing the mode back so that the deferred
		// RemoveAll(tempDir) can succeed.
		defer Chmod(d, 0777)
	}

err := RemoveAll(tempDir)
	if err == nil {
		t.Fatal("RemoveAll succeeded unexpectedly")
	}

// The error should be of type *PathError.
	// see issue 30491 for details.
	if pathErr, ok := err.(*PathError); ok {
		want := filepath.Join(tempDir, "b", "y")
		if pathErr.Path != want {
			t.Errorf("RemoveAll(%q): err.Path=%q, want %q", tempDir, pathErr.Path, want)
		}
	} else {
		t.Errorf("RemoveAll(%q): error has type %T, want *fs.PathError", tempDir, err)
	}

for _, dir := range dirs {
		_, err := Stat(filepath.Join(tempDir, dir))
		if inReadonly(dir) {
			if err != nil {
				t.Errorf("file %q was deleted but should still exist", dir)
			}
		} else {
			if err == nil {
				t.Errorf("file %q still exists but should have been deleted", dir)
			}
		}
	}
}

func TestRemoveUnreadableDir(t *testing.T) {
	switch runtime.GOOS {
	case "js":
		t.Skipf("skipping test on %s", runtime.GOOS)
	}

if Getuid() == 0 {
		t.Skip("skipping test when running as root")
	}

t.Parallel()

tempDir := t.TempDir()
	target := filepath.Join(tempDir, "d0", "d1", "d2")
	if err := MkdirAll(target, 0755); err != nil {
		t.Fatal(err)
	}
	if err := Chmod(target, 0300); err != nil {
		t.Fatal(err)
	}
	if err := RemoveAll(filepath.Join(tempDir, "d0")); err != nil {
		t.Fatal(err)
	}
}

// Issue 29921
func TestRemoveAllWithMoreErrorThanReqSize(t *testing.T) {
	if testing.Short() {
		t.Skip("skipping in short mode")
	}
	t.Parallel()

tmpDir := t.TempDir()
	path := filepath.Join(tmpDir, "_TestRemoveAllWithMoreErrorThanReqSize_")

// Make directory with 1025 read-only files.
	if err := MkdirAll(path, 0777); err != nil {
		t.Fatalf("MkdirAll %q: %s", path, err)
	}
	for i := 0; i < 1025; i++ {
		fpath := filepath.Join(path, fmt.Sprintf("file%d", i))
		fd, err := Create(fpath)
		if err != nil {
			t.Fatalf("create %q: %s", fpath, err)
		}
		fd.Close()
	}

// Make the parent directory read-only. On some platforms, this is what
	// prevents Remove from removing the files within that directory.
	if err := Chmod(path, 0555); err != nil {
		t.Fatal(err)
	}
	defer Chmod(path, 0755)

// This call should not hang, even on a platform that disallows file deletion
	// from read-only directories.
	err := RemoveAll(path)

if Getuid() == 0 {
		// On many platforms, root can remove files from read-only directories.
		return
	}
	if err == nil {
		if runtime.GOOS == "windows" || runtime.GOOS == "wasip1" {
			// Marking a directory as read-only in Windows does not prevent the RemoveAll
			// from creating or removing files within it.
			//
			// For wasip1, there is no support for file permissions so we cannot prevent
			// RemoveAll from removing the files.
			return
		}
		t.Fatal("RemoveAll(<read-only directory>) = nil; want error")
	}

dir, err := Open(path)
	if err != nil {
		t.Fatal(err)
	}
	defer dir.Close()

names, _ := dir.Readdirnames(1025)
	if len(names) < 1025 {
		t.Fatalf("RemoveAll(<read-only directory>) unexpectedly removed %d read-only files from that directory", 1025-len(names))
	}
}

func TestRemoveAllNoFcntl(t *testing.T) {
	if testing.Short() {
		t.Skip("skipping in short mode")
	}

const env = "GO_TEST_REMOVE_ALL_NO_FCNTL"
	if dir := Getenv(env); dir != "" {
		if err := RemoveAll(dir); err != nil {
			t.Fatal(err)
		}
		return
	}

// Only test on Linux so that we can assume we have strace.
	// The code is OS-independent so if it passes on Linux
	// it should pass on other Unix systems.
	if runtime.GOOS != "linux" {
		t.Skipf("skipping test on %s", runtime.GOOS)
	}
	if _, err := Stat("/bin/strace"); err != nil {
		t.Skipf("skipping test because /bin/strace not found: %v", err)
	}
	me, err := Executable()
	if err != nil {
		t.Skipf("skipping because Executable failed: %v", err)
	}

// Create 100 directories.
	// The test is that we can remove them without calling fcntl
	// on each one.
	tmpdir := t.TempDir()
	subdir := filepath.Join(tmpdir, "subdir")
	if err := Mkdir(subdir, 0o755); err != nil {
		t.Fatal(err)
	}
	for i := 0; i < 100; i++ {
		subsubdir := filepath.Join(subdir, strconv.Itoa(i))
		if err := Mkdir(filepath.Join(subdir, strconv.Itoa(i)), 0o755); err != nil {
			t.Fatal(err)
		}
		if err := WriteFile(filepath.Join(subsubdir, "file"), nil, 0o644); err != nil {
			t.Fatal(err)
		}
	}

cmd := testenv.Command(t, "/bin/strace", "-f", "-e", "fcntl", me, "-test.run=^TestRemoveAllNoFcntl$")
	cmd = testenv.CleanCmdEnv(cmd)
	cmd.Env = append(cmd.Env, env+"="+subdir)
	out, err := cmd.CombinedOutput()
	if len(out) > 0 {
		t.Logf("%s", out)
	}
	if err != nil {
		t.Fatal(err)
	}

if got := bytes.Count(out, []byte("fcntl")); got >= 100 {
		t.Errorf("found %d fcntl calls, want < 100", got)
	}
}

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Editing: removeall_test.go

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