How to use Open method of fsext Package

Best K6 code snippet using fsext.Open

initcontext.go

Source:initcontext.go Github

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...239func (i *InitContext) compileImport(src, filename string) (*goja.Program, error) {240 pgm, _, err := i.compiler.Compile(src, filename, false)241 return pgm, err242}243// Open implements open() in the init context and will read and return the244// contents of a file. If the second argument is "b" it returns an ArrayBuffer245// instance, otherwise a string representation.246func (i *InitContext) Open(filename string, args ...string) (goja.Value, error) {247 if i.moduleVUImpl.State() != nil {248 return nil, errors.New(openCantBeUsedOutsideInitContextMsg)249 }250 if filename == "" {251 return nil, errors.New("open() can't be used with an empty filename")252 }253 // Here IsAbs should be enough but unfortunately it doesn't handle absolute paths starting from254 // the current drive on windows like `\users\noname\...`. Also it makes it more easy to test and255 // will probably be need for archive execution under windows if always consider '/...' as an256 // absolute path.257 if filename[0] != '/' && filename[0] != '\\' && !filepath.IsAbs(filename) {258 filename = filepath.Join(i.pwd.Path, filename)259 }260 filename = filepath.Clean(filename)261 fs := i.filesystems["file"]262 if filename[0:1] != afero.FilePathSeparator {263 filename = afero.FilePathSeparator + filename264 }265 data, err := readFile(fs, filename)266 if err != nil {267 return nil, err268 }269 if len(args) > 0 && args[0] == "b" {270 ab := i.moduleVUImpl.runtime.NewArrayBuffer(data)271 return i.moduleVUImpl.runtime.ToValue(&ab), nil272 }273 return i.moduleVUImpl.runtime.ToValue(string(data)), nil274}275func readFile(fileSystem afero.Fs, filename string) (data []byte, err error) {276 defer func() {277 if errors.Is(err, fsext.ErrPathNeverRequestedBefore) {278 // loading different files per VU is not supported, so all files should are going279 // to be used inside the scenario should be opened during the init step (without any conditions)280 err = fmt.Errorf(281 "open() can't be used with files that weren't previously opened during initialization (__VU==0), path: %q",282 filename,283 )284 }285 }()286 // Workaround for https://github.com/spf13/afero/issues/201287 if isDir, err := afero.IsDir(fileSystem, filename); err != nil {288 return nil, err289 } else if isDir {290 return nil, fmt.Errorf("open() can't be used with directories, path: %q", filename)291 }292 return afero.ReadFile(fileSystem, filename)293}294// allowOnlyOpenedFiles enables seen only files295func (i *InitContext) allowOnlyOpenedFiles() {296 fs := i.filesystems["file"]297 alreadyOpenedFS, ok := fs.(fsext.OnlyCachedEnabler)298 if !ok {299 return300 }301 alreadyOpenedFS.AllowOnlyCached()302}303func getInternalJSModules() map[string]interface{} {304 return map[string]interface{}{305 "k6": k6.New(),306 "k6/crypto": crypto.New(),307 "k6/crypto/x509": x509.New(),308 "k6/data": data.New(),309 "k6/encoding": encoding.New(),310 "k6/execution": execution.New(),311 "k6/net/grpc": grpc.New(),312 "k6/html": html.New(),313 "k6/http": http.New(),314 "k6/metrics": metrics.New(),315 "k6/ws": ws.New(),...

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Open

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1import (2func main() {3 xlFile, err := xlsx.OpenFile(excelFileName)4 if err != nil {5 fmt.Println(err)6 }7 for _, sheet := range xlFile.Sheets {8 for _, row := range sheet.Rows {9 for _, cell := range row.Cells {10 text := cell.String()11 fmt.Printf("%s12 }13 }14 }15}

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Open

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1import (2func main() {3 xlFile, err := xlsx.OpenFile(excelFileName)4 if err != nil {5 fmt.Println(err)6 }7 for _, sheet := range xlFile.Sheets {8 for _, row := range sheet.Rows {9 for _, cell := range row.Cells {10 text := cell.String()11 fmt.Printf("%s12 }13 }14 }15}

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Open

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1import (2func main() {3 f, err := fsext.Open("local", "/home/username/test")4 if err != nil {5 fmt.Println("Error: ", err)6 } else {7 fmt.Println("File opened successfully")8 }9 defer f.Close()10 operations.Mkdir(f, "test")11 operations.Mkdir(f, "test1")12 operations.Mkdir(f, "test2")13 operations.Mkdir(f, "test3")14 operations.Mkdir(f, "test4")15 operations.Mkdir(f, "test5")16 operations.Mkdir(f, "test6")17 operations.Mkdir(f, "test7")18 operations.Mkdir(f, "test8")19 operations.Mkdir(f, "test9")20 operations.Mkdir(f, "test10")21 operations.Mkdir(f, "test11")22 operations.Mkdir(f, "test12")23 operations.Mkdir(f, "test13")24 operations.Mkdir(f, "test14")25 operations.Mkdir(f, "test15")26 operations.Mkdir(f, "test16")27 operations.Mkdir(f, "test17")28 operations.Mkdir(f, "test18")29 operations.Mkdir(f, "test19")30 operations.Mkdir(f, "test20")31 operations.Mkdir(f, "test21")32 operations.Mkdir(f, "test22")33 operations.Mkdir(f, "test23")34 operations.Mkdir(f, "test24")35 operations.Mkdir(f, "test25")36 operations.Mkdir(f, "test26")37 operations.Mkdir(f, "test27")38 operations.Mkdir(f, "test28")39 operations.Mkdir(f, "test29")40 operations.Mkdir(f, "test30")41 operations.Mkdir(f, "test31")42 operations.Mkdir(f, "test32")43 operations.Mkdir(f, "test33")44 operations.Mkdir(f, "test34")45 operations.Mkdir(f, "test35")46 operations.Mkdir(f, "test36")47 operations.Mkdir(f, "test37")

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Open

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1import (2func main() {3 fs := mem.NewFs()4 f, err := fs.Create("test.txt")5 if err != nil {6 panic(err)7 }8 f.Close()9 fsext := afero.NewOsFs()10 f, err = fsext.Open("test.txt")11 if err != nil {12 panic(err)13 }14 f.Close()15 f, err = fs.Create("test1.txt")16 if err != nil {17 panic(err)18 }19 f.Close()20 f, err = fsext.Open("test1.txt")21 if err != nil {22 panic(err)23 }24 f.Close()25 f, err = fs.Create("test2.txt")26 if err != nil {27 panic(err)28 }29 f.Close()30 f, err = fsext.Open("test2.txt")31 if err != nil {32 panic(err)33 }34 f.Close()35 f, err = fs.Create("test3.txt")36 if err != nil {37 panic(err)38 }39 f.Close()40 f, err = fsext.Open("test3.txt")41 if err != nil {42 panic(err)43 }44 f.Close()45 f, err = fs.Create("test4.txt")46 if err != nil {47 panic(err)48 }49 f.Close()50 f, err = fsext.Open("test4.txt")51 if err != nil {52 panic(err)53 }54 f.Close()55 f, err = fs.Create("test5.txt")56 if err != nil {57 panic(err)58 }

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Open

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1func main() {2 fsext := fsext.New()3 fsext.Open("/path/to/file")4}5func main() {6 fsext := fsext.New()7 fsext.Open("/path/to/file")8}9func main() {10 fsext := fsext.New()11 fsext.Open("/path/to/file")12}13func main() {14 fsext := fsext.New()15 fsext.Open("/path/to/file")16}17func main() {18 fsext := fsext.New()19 fsext.Open("/path/to/file")20}21func main() {22 fsext := fsext.New()23 fsext.Open("/path/to/file")24}25func main() {26 fsext := fsext.New()27 fsext.Open("/path/to/file")28}29func main() {30 fsext := fsext.New()31 fsext.Open("/path/to/file")32}33func main() {34 fsext := fsext.New()35 fsext.Open("/path/to/file")36}37func main() {38 fsext := fsext.New()39 fsext.Open("/path/to/file")40}41func main() {42 fsext := fsext.New()43 fsext.Open("/path/to/file")44}45func main() {46 fsext := fsext.New()

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Open

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1import (2func main(){3 fsext := golfs.NewFsext()4 fsext.Open("1.go")5 fmt.Println(fsext)6}7import (8func main(){9 fsext := golfs.NewFsext()10 fsext.Open("2.go")11 fmt.Println(fsext)12}13import (14func main(){15 fsext := golfs.NewFsext()16 fsext.Open("3.go")17 fmt.Println(fsext)18}19import (20func main(){21 fsext := golfs.NewFsext()22 fsext.Open("4.go")23 fmt.Println(fsext)24}25import (26func main(){27 fsext := golfs.NewFsext()28 fsext.Open("5.go")29 fmt.Println(fsext)30}31import (32func main(){33 fsext := golfs.NewFsext()34 fsext.Open("6.go")35 fmt.Println(fsext)36}37import (38func main(){39 fsext := golfs.NewFsext()40 fsext.Open("7.go")41 fmt.Println(fsext)42}

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Open

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1import (2type argT struct {3}4func (arg *argT) Validate(ctx *cli.Context) error {5 if arg.Dir == "" {6 return fmt.Errorf("directory name is required")7 }8}9func main() {10 if err := cli.Root(root,11 cli.Tree(dir),12 ).Run(os.Args[1:]); err != nil {13 glog.Errorln(err)14 }15}16var root = &cli.Command{17 Argv: func() interface{} { return new(argT) },18}19func rootFn(ctx *cli.Context) error {20 argv := ctx.Argv().(*argT)21 fmt.Println(argv.Dir)22}23var dir = &cli.Command{24 Argv: func() interface{} { return new(argT) },25}26func dirFn(ctx *cli.Context) error {27 argv := ctx.Argv().(*argT)28 fmt.Println(argv.Dir)29}30import (31type argT struct {32}33func (arg *argT) Validate(ctx *cli.Context) error {34 if arg.Dir == "" {35 return fmt.Errorf("directory name is required")36 }37}38func main() {39 if err := cli.Root(root,40 cli.Tree(dir),41 ).Run(os.Args[1:]); err != nil {42 glog.Errorln(err)43 }44}45var root = &cli.Command{46 Argv: func() interface{} { return new(argT) },47}48func rootFn(ctx *cli.Context) error {49 argv := ctx.Argv().(*argT)50 fmt.Println(argv.Dir)51}52var dir = &cli.Command{

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Open

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1import (2func main() {3 fd, err := fs.Open("/home/abc.txt", os.O_RDONLY, 0)4 if err != nil {5 log.Fatal(err)6 }7 defer fd.Close()8 fmt.Println("File name: ", fd.Name())9}10import (11func main() {12 fd, err := fs.OpenFile("/home/abc.txt", os.O_RDONLY, 0)13 if err != nil {14 log.Fatal(err)15 }16 defer fd.Close()17 fmt.Println("File name: ", fd.Name())18}19import (20func main() {21 fd, err := fs.OpenFile("/home/abc.txt", os.O_RDONLY, 0644)22 if err != nil {23 log.Fatal(err)24 }25 defer fd.Close()26 fmt.Println("File name: ", fd.Name())27}

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