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How to use Rename method of osutil Package

Best Syzkaller code snippet using osutil.Rename

osutil_test.go

Source:osutil_test.go

...124	if err := os.RemoveAll("testdata/windows"); err != nil {125		t.Errorf("Unexpected error: %s", err)126	}127}128func TestInWritableDirWindowsRename(t *testing.T) {129	if runtime.GOOS != "windows" {130		t.Skipf("Tests not required")131		return132	}133	err := os.RemoveAll("testdata")134	if err != nil {135		t.Fatal(err)136	}137	defer os.Chmod("testdata/windows/ro/readonlynew", 0700)138	defer os.RemoveAll("testdata")139	create := func(name string) error {140		fd, err := os.Create(name)141		if err != nil {142			return err143		}144		fd.Close()145		return nil146	}147	os.Mkdir("testdata", 0700)148	os.Mkdir("testdata/windows", 0500)149	os.Mkdir("testdata/windows/ro", 0500)150	create("testdata/windows/ro/readonly")151	os.Chmod("testdata/windows/ro/readonly", 0500)152	fs := fs.NewFilesystem(fs.FilesystemTypeBasic, ".")153	for _, path := range []string{"testdata/windows/ro/readonly", "testdata/windows/ro", "testdata/windows"} {154		err := os.Rename(path, path+"new")155		if err == nil {156			t.Skipf("seem like this test doesn't work here")157			return158		}159	}160	rename := func(path string) error {161		return osutil.RenameOrCopy(fs, fs, path, path+"new")162	}163	for _, path := range []string{"testdata/windows/ro/readonly", "testdata/windows/ro", "testdata/windows"} {164		err := osutil.InWritableDir(rename, fs, path)165		if err != nil {166			t.Errorf("Unexpected error %s: %s", path, err)167		}168		_, err = os.Stat(path + "new")169		if err != nil {170			t.Errorf("Unexpected error %s: %s", path, err)171		}172	}173}174func TestIsDeleted(t *testing.T) {175	type tc struct {176		path  string177		isDel bool178	}179	cases := []tc{180		{"del", true},181		{"del.file", false},182		{"del/del", true},183		{"file", false},184		{"linkToFile", false},185		{"linkToDel", false},186		{"linkToDir", false},187		{"linkToDir/file", true},188		{"file/behindFile", true},189		{"dir", false},190		{"dir.file", false},191		{"dir/file", false},192		{"dir/del", true},193		{"dir/del/del", true},194		{"del/del/del", true},195	}196	testFs := fs.NewFilesystem(fs.FilesystemTypeBasic, "testdata")197	testFs.MkdirAll("dir", 0777)198	for _, f := range []string{"file", "del.file", "dir.file", "dir/file"} {199		fd, err := testFs.Create(f)200		if err != nil {201			t.Fatal(err)202		}203		fd.Close()204	}205	if runtime.GOOS != "windows" {206		// Can't create unreadable dir on windows207		testFs.MkdirAll("inacc", 0777)208		if err := testFs.Chmod("inacc", 0000); err == nil {209			if _, err := testFs.Lstat("inacc/file"); fs.IsPermission(err) {210				// May fail e.g. if tests are run as root -> just skip211				cases = append(cases, tc{"inacc", false}, tc{"inacc/file", false})212			}213		}214	}215	for _, n := range []string{"Dir", "File", "Del"} {216		if err := osutil.DebugSymlinkForTestsOnly(filepath.Join(testFs.URI(), strings.ToLower(n)), filepath.Join(testFs.URI(), "linkTo"+n)); err != nil {217			if runtime.GOOS == "windows" {218				t.Skip("Symlinks aren't working")219			}220			t.Fatal(err)221		}222	}223	for _, c := range cases {224		if osutil.IsDeleted(testFs, c.path) != c.isDel {225			t.Errorf("IsDeleted(%v) != %v", c.path, c.isDel)226		}227	}228	testFs.Chmod("inacc", 0777)229	os.RemoveAll("testdata")230}231func TestRenameOrCopy(t *testing.T) {232	mustTempDir := func() string {233		t.Helper()234		tmpDir, err := ioutil.TempDir("", "")235		if err != nil {236			t.Fatal(err)237		}238		return tmpDir239	}240	sameFs := fs.NewFilesystem(fs.FilesystemTypeBasic, mustTempDir())241	tests := []struct {242		src  fs.Filesystem243		dst  fs.Filesystem244		file string245	}{246		{247			src:  sameFs,248			dst:  sameFs,249			file: "file",250		},251		{252			src:  fs.NewFilesystem(fs.FilesystemTypeBasic, mustTempDir()),253			dst:  fs.NewFilesystem(fs.FilesystemTypeBasic, mustTempDir()),254			file: "file",255		},256		{257			src:  fs.NewFilesystem(fs.FilesystemTypeFake, `fake://fake/?files=1&seed=42`),258			dst:  fs.NewFilesystem(fs.FilesystemTypeBasic, mustTempDir()),259			file: osutil.NativeFilename(`05/7a/4d52f284145b9fe8`),260		},261	}262	for _, test := range tests {263		content := test.src.URI()264		if _, err := test.src.Lstat(test.file); err != nil {265			if !fs.IsNotExist(err) {266				t.Fatal(err)267			}268			if fd, err := test.src.Create(test.file); err != nil {269				t.Fatal(err)270			} else {271				if _, err := fd.Write([]byte(test.src.URI())); err != nil {272					t.Fatal(err)273				}274				_ = fd.Close()275			}276		} else {277			fd, err := test.src.Open(test.file)278			if err != nil {279				t.Fatal(err)280			}281			buf, err := ioutil.ReadAll(fd)282			if err != nil {283				t.Fatal(err)284			}285			_ = fd.Close()286			content = string(buf)287		}288		err := osutil.RenameOrCopy(test.src, test.dst, test.file, "new")289		if err != nil {290			t.Fatal(err)291		}292		if fd, err := test.dst.Open("new"); err != nil {293			t.Fatal(err)294		} else {295			if buf, err := ioutil.ReadAll(fd); err != nil {296				t.Fatal(err)297			} else if string(buf) != content {298				t.Fatalf("expected %s got %s", content, string(buf))299			}300		}301	}302}...

linux.go

Source:linux.go

...63		return extractRootCause(err)64	}65	vmlinux := filepath.Join(kernelDir, "vmlinux")66	outputVmlinux := filepath.Join(outputDir, "obj", "vmlinux")67	if err := os.Rename(vmlinux, outputVmlinux); err != nil {68		return fmt.Errorf("failed to rename vmlinux: %v", err)69	}70	return nil71}72func (linux) createImage(vmType, kernelDir, outputDir, userspaceDir, cmdlineFile, sysctlFile string) error {73	tempDir, err := ioutil.TempDir("", "syz-build")74	if err != nil {75		return err76	}77	defer os.RemoveAll(tempDir)78	scriptFile := filepath.Join(tempDir, "create.sh")79	if err := osutil.WriteExecFile(scriptFile, []byte(createImageScript)); err != nil {80		return fmt.Errorf("failed to write script file: %v", err)81	}82	bzImage := filepath.Join(kernelDir, filepath.FromSlash("arch/x86/boot/bzImage"))83	cmd := osutil.Command(scriptFile, userspaceDir, bzImage)84	cmd.Dir = tempDir85	cmd.Env = append([]string{}, os.Environ()...)86	cmd.Env = append(cmd.Env,87		"SYZ_VM_TYPE="+vmType,88		"SYZ_CMDLINE_FILE="+osutil.Abs(cmdlineFile),89		"SYZ_SYSCTL_FILE="+osutil.Abs(sysctlFile),90	)91	if _, err = osutil.Run(time.Hour, cmd); err != nil {92		return fmt.Errorf("image build failed: %v", err)93	}94	// Note: we use CopyFile instead of Rename because src and dst can be on different filesystems.95	imageFile := filepath.Join(outputDir, "image")96	if err := osutil.CopyFile(filepath.Join(tempDir, "disk.raw"), imageFile); err != nil {97		return err98	}99	keyFile := filepath.Join(outputDir, "key")100	if err := osutil.CopyFile(filepath.Join(tempDir, "key"), keyFile); err != nil {101		return err102	}103	if err := os.Chmod(keyFile, 0600); err != nil {104		return err105	}106	return nil107}108func (linux) clean(kernelDir string) error {...

Rename

Using AI Code Generation

1import (2func main() {3	usr, err := user.Current()4	if err != nil {5		fmt.Println(err)6	}7	fmt.Println(usr.HomeDir)8	path := filepath.Join(dir, file)9	path1 := filepath.Join(dir, file1)10	fmt.Println(path)11	fmt.Println(path1)12	err1 := os.Rename(path, path1)13	if err1 != nil {14		fmt.Println(err)15	}16	fmt.Println("Rename done")17}

Rename

Using AI Code Generation

1import "os"2import "fmt"3func main() {4    err := os.Rename("test1.txt", "test2.txt")5    if err != nil {6        fmt.Println(err)7    }8    fmt.Println("File Renamed")9}10What is os.MkdirAll() method in Golang?11func MkdirAll(path string, perm FileMode) error12import "os"13import "fmt"14func main() {15    err := os.MkdirAll("testdir/subtestdir", 0755)16    if err != nil {17        fmt.Println(err)18    }19    fmt.Println("Directory Created")20}21What is os.Remove() method in Golang?22func Remove(name string) error23import "os"24import "fmt"25func main() {26    err := os.Remove("test2.txt")27    if err != nil {

Rename

Using AI Code Generation

1import (2func main() {3    err := os.Rename("1.go", "2.go")4    if err != nil {5        panic(err)6    }7    fmt.Println("Renamed")8    m, err := fs.Walk("1.go")9    if err != nil {10        panic(err)11    }12    for m.Next() {13        if m.Stat().IsDir() {14            fmt.Println("d", m.Path())15        } else {16            fmt.Println("f", m.Path())17        }18    }19    if err := m.Err(); err != nil {20        panic(err)21    }22}23import (24func main() {25    m, err := fs.Walk("1.go")26    if err != nil {27        panic(err)28    }29    for m.Next() {30        if m.Stat().IsDir() {31            fmt.Println("d", m.Path())32        } else {33            fmt.Println("f", m.Path())34        }35    }36    if err := m.Err(); err != nil {37        panic(err)38    }39}40import (41func main() {42    m, err := fs.Walk("1.go")43    if err != nil {44        panic(err)45    }46    for m.Next() {47        if m.Stat().IsDir() {48            fmt.Println("d", m.Path())49        } else {50            fmt.Println("f", m.Path())51        }52    }53    if err := m.Err(); err != nil {54        panic(err)55    }56}57import (58func main() {59    m, err := fs.Walk("1.go")60    if err != nil {61        panic(err)62    }63    for m.Next() {64        if m.Stat().IsDir() {65            fmt.Println("d", m.Path())66        } else {67            fmt.Println("f", m.Path())

Rename

Using AI Code Generation

1import "fmt"2import "os"3import "os/exec"4import "os/user"5import "io/ioutil"6import "github.com/kr/fs"7func main() {8    file, err := os.Create("test.txt")9    if err != nil {10        fmt.Println(err)11    }12    file.Close()13    err = os.Rename("test.txt", "test2.txt")14    if err != nil {15        fmt.Println(err)16    }17    err = os.Mkdir("testdir", 0755)18    if err != nil {19        fmt.Println(err)20    }21    err = os.Rename("testdir", "testdir2")22    if err != nil {23        fmt.Println(err)24    }25    err = os.Remove("testdir2")26    if err != nil {27        fmt.Println(err)28    }29    err = os.Symlink("test2.txt", "testlink")30    if err != nil {31        fmt.Println(err)32    }33    err = os.Remove("testlink")34    if err != nil {35        fmt.Println(err)36    }37    err = os.Remove("test2.txt")38    if err != nil {39        fmt.Println(err)40    }41    file, err = os.Create("test.txt")42    if err != nil {43        fmt.Println(err)44    }45    file.Close()46    file, err = os.Open("test.txt")47    if err != nil {48        fmt.Println(err)49    }50    file2, err := os.Create("test2.txt")51    if err != nil {52        fmt.Println(err)53    }54    file2.Close()55    file2, err = os.Open("test2.txt")56    if err != nil {57        fmt.Println(err)58    }59    err = os.Rename("test.txt", "test2.txt")60    if err != nil {61        fmt.Println(err

Rename

Using AI Code Generation

1import (2func main() {3    err := osutil.Rename("test.txt", "test1.txt")4    if err != nil {5        fmt.Println(err)6    }7}

Rename

Using AI Code Generation

1import (2func main() {3	f, err = os.Create("file1.txt")4	if err != nil {5		fmt.Println(err)6	}7	f.Close()8	f, err = os.Create("file2.txt")9	if err != nil {10		fmt.Println(err)11	}12	f.Close()13	err = os.Rename("file1.txt", "file3.txt")14	if err != nil {15		fmt.Println(err)16	}17	err = os.Rename("file2.txt", "file1.txt")18	if err != nil {19		fmt.Println(err)20	}21	err = os.Rename("file3.txt", "file2.txt")22	if err != nil {23		fmt.Println(err)24	}25	walker := fs.Walk(".")26	for walker.Step() {27		if err := walker.Err(); err != nil {28			fmt.Println(err)29		}30		fmt.Println(walker.Path())31	}32}

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