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}

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.