How to use OpenFile method of util Package

Best Gauge code snippet using util.OpenFile

config.go

Source:config.go Github

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...89 return nil90}91//创建新的配置文件92func SaveConfig() error {93 f, err := os.OpenFile(confPath, os.O_RDWR|os.O_CREATE, 0766)94 if err != nil {95 return err96 }97 defer f.Close()98 //坑爹的记事本,会文件开头添加0xefbbbf(十六进制)的字符,此处添加换行解决问题 https://blog.csdn.net/u013281361/article/details/6563182099 str := fmt.Sprintf("----\r\n钱包地址=%s\r\n网络ID=%s\r\n端口=%s\r\n挖矿线程=%s\r\n区块同步=%s\r\n启动节点=%s\r\n", Coinbase, Networkid, Port, Minerthreads, Syncmode, Bootnodes)100 if _, err = f.Write([]byte(str)); err != nil {101 return err102 }103 util.Info.Println("ini文件保存成功")104 return nil105}106//创建新的挖矿脚本107func GethBat() error {108 f, err := os.OpenFile(gethBat, os.O_RDWR|os.O_CREATE, 0766)109 if err != nil {110 return err111 }112 defer f.Close()113 bat := fmt.Sprintf(`114@echo off115start /b ./bin/geth.exe --datadir ./data --syncmode %s --networkid %s --port %s --rpc --rpcapi "db,eth,net,web3,personal,miner" --allow-insecure-unlock --etherbase %s --bootnodes %s console >%s 2>&1116`, Syncmode, Networkid, Port, Coinbase, Bootnodes, GethLog)117 if _, err = f.Write([]byte(bat)); err != nil {118 return err119 }120 util.Info.Println("geth.bat文件创建成功")121 return nil122}123//创建新的挖矿脚本124func MinerBat() error {125 f, err := os.OpenFile(minerBat, os.O_RDWR|os.O_CREATE, 0766)126 if err != nil {127 return err128 }129 defer f.Close()130 bat := fmt.Sprintf(`131@echo off132start /b ./bin/ethminer.exe -G -P http://127.0.0.1:8545 >%s 2>&1133`, MinerLog)134 if _, err = f.Write([]byte(bat)); err != nil {135 return err136 }137 util.Info.Println("miner.bat文件创建成功")138 return nil139}140//创建新的配置以及挖矿脚本141func NewFile() error {142 //更新钱包地址143 util.Info.Println("更新钱包地址")144 //写入ini文件145 if err := SaveConfig(); err != nil {146 return err147 }148 //写入geth.vbs文件149 if err := GethVbs(); err != nil {150 return err151 }152 //写入miner.vbs文件153 if err := MinerVbs(); err != nil {154 return err155 }156 //写入geth.bat文件157 if err := GethBat(); err != nil {158 return err159 }160 //写入miner.bat文件161 if err := MinerBat(); err != nil {162 return err163 }164 return nil165}166//创建新的空log167func NewLog() error {168 //geth.log169 f, err := os.OpenFile(GethLog, os.O_RDWR|os.O_CREATE, 0766)170 if err != nil {171 return err172 }173 defer f.Close()174 if _, err = f.Write([]byte{}); err != nil {175 return err176 }177 util.Info.Println("geth.log文件创建成功")178 //miner.log179 f, err = os.OpenFile(MinerLog, os.O_RDWR|os.O_CREATE, 0766)180 if err != nil {181 return err182 }183 defer f.Close()184 if _, err = f.Write([]byte{}); err != nil {185 return err186 }187 util.Info.Println("miner.log文件创建成功")188 return nil189}190//创建新的挖矿脚本191func GethVbs() error {192 //不需要更新数据的不用重复创建193 if util.Exists(gethVbs) {194 util.Info.Println("geth.vbs已存在")195 return nil196 }197 f, err := os.OpenFile(gethVbs, os.O_RDWR|os.O_CREATE, 0766)198 if err != nil {199 return err200 }201 defer f.Close()202 bat := `203Set ws = CreateObject("Wscript.Shell")204ws.run "cmd /c .\\bin\\geth.bat",0205`206 if _, err = f.Write([]byte(bat)); err != nil {207 return err208 }209 util.Info.Println("geth.vbs文件创建成功")210 return nil211}212//创建新的挖矿脚本213func MinerVbs() error {214 //不需要更新数据的不用重复创建215 if util.Exists(minerVbs) {216 util.Info.Println("miner.vbs已存在")217 return nil218 }219 f, err := os.OpenFile(minerVbs, os.O_RDWR|os.O_CREATE, 0766)220 if err != nil {221 return err222 }223 defer f.Close()224 bat := `225Set ws = CreateObject("Wscript.Shell")226ws.run "cmd /c .\\bin\\miner.bat",0227`228 if _, err = f.Write([]byte(bat)); err != nil {229 return err230 }231 util.Info.Println("miner.vbs文件创建成功")232 return nil233}...

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local.go

Source:local.go Github

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...38 return nil, err39 }40 return os.Open(fullpath)41}42// OpenFile ...43func (fs *local) OpenFile(filename string, flag int, perm os.FileMode) (extfs.File, error) {44 fullpath, err := util.UnderlyingPath(fs.base, filename)45 if err != nil {46 return nil, err47 }48 return fs.openFile(fullpath, flag, perm)49}50// Rename ...51func (fs *local) Rename(from, to string) error {52 var err error53 from, err = util.UnderlyingPath(fs.base, from)54 if err != nil {55 return err56 }57 to, err = util.UnderlyingPath(fs.base, to)58 if err != nil {59 return err60 }61 if err := fs.createDir(to); err != nil {62 return err63 }64 return os.Rename(from, to)65}66// Remove ...67func (fs *local) Remove(filename string) error {68 fullpath, err := util.UnderlyingPath(fs.base, filename)69 if err != nil {70 return err71 }72 return os.Remove(fullpath)73}74// RemoveAll ...75func (fs *local) RemoveAll(path string) error {76 fullpath, err := util.UnderlyingPath(fs.base, path)77 if err != nil {78 return err79 }80 return os.RemoveAll(fullpath)81}82// ReadDir ...83func (fs *local) ReadDir(path string) ([]os.FileInfo, error) {84 fullpath, err := util.UnderlyingPath(fs.base, path)85 if err != nil {86 return nil, err87 }88 l, err := ioutil.ReadDir(fullpath)89 if err != nil {90 return nil, err91 }92 return l[:], nil93}94// MkdirAll ...95func (fs *local) MkdirAll(path string, perm os.FileMode) error {96 fullpath, err := util.UnderlyingPath(fs.base, path)97 if err != nil {98 return err99 }100 return os.MkdirAll(fullpath, defaultDirectoryMode)101}102// Stat ...103func (fs *local) Stat(filename string) (os.FileInfo, error) {104 fullpath, err := util.UnderlyingPath(fs.base, filename)105 if err != nil {106 return nil, err107 }108 return os.Stat(fullpath)109}110func (fs *local) Chmod(name string, mode os.FileMode) error {111 fullpath, err := util.UnderlyingPath(fs.base, name)112 if err != nil {113 return err114 }115 return os.Chmod(fullpath, mode)116}117func (fs *local) Chtimes(name string, atime time.Time, mtime time.Time) error {118 fullpath, err := util.UnderlyingPath(fs.base, name)119 if err != nil {120 return err121 }122 return os.Chtimes(fullpath, atime, mtime)123}124// Close ...125func (fs *local) Close() error {126 return nil127}128func (fs *local) openFile(filename string, flag int, perm os.FileMode) (extfs.File, error) {129 if flag&os.O_CREATE != 0 {130 if err := fs.createDir(filename); err != nil {131 return nil, err132 }133 }134 return os.OpenFile(filename, flag, perm)135}136func (fs *local) createDir(fullpath string) error {137 dir := filepath.Dir(fullpath)138 if dir != "." {139 if err := os.MkdirAll(dir, defaultDirectoryMode); err != nil {140 return err141 }142 }143 return nil144}...

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file.go

Source:file.go Github

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...7 FileTransaction struct{}8)9func (d *FileTransaction) Read(tra *Transaction) error {10 tras := []Transaction{}11 if err := util.OpenFile(config.FilePath, &tras); err != nil {12 return err13 }14 for _, traObj := range tras {15 if traObj.Id == tra.Id {16 tra.AccountId = traObj.AccountId17 tra.CategoryId = traObj.CategoryId18 tra.TxnDate = traObj.TxnDate19 tra.Amount = traObj.Amount20 tra.Description = traObj.Description21 break22 }23 }24 return nil25}26func (d *FileTransaction) List(tra *[]Transaction) error {27 return util.OpenFile(config.FilePath, tra)28}29func (d *FileTransaction) Create(tra Transaction) error {30 tras := []Transaction{}31 if err := util.OpenFile(config.FilePath, &tras); err != nil {32 return err33 }34 maxId := 035 for _, traObj := range tras {36 if traObj.Id > maxId {37 maxId = traObj.Id38 }39 }40 tra.Id = maxId + 141 tras = append(tras, tra)42 return util.SaveFile(config.FilePath, tras)43}44func (d *FileTransaction) Update(tra Transaction) error {45 tras := []Transaction{}46 if err := util.OpenFile(config.FilePath, &tras); err != nil {47 return err48 }49 for i, traObj := range tras {50 if traObj.Id == tra.Id {51 tras[i] = tra52 break53 }54 }55 return util.SaveFile(config.FilePath, tras)56}57func (d *FileTransaction) Delete(tra Transaction) error {58 tras := []Transaction{}59 if err := util.OpenFile(config.FilePath, &tras); err != nil {60 return err61 }62 for i, traObj := range tras {63 if traObj.Id == tra.Id {64 tras = append(tras[:i], tras[i+1:]...)65 break66 }67 }68 return util.SaveFile(config.FilePath, tras)69}...

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OpenFile

Using AI Code Generation

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1import (2func main() {3 file, err := util.OpenFile("test.txt")4 if err != nil {5 fmt.Println(err)6 }7 defer file.Close()8 fmt.Println("File opened successfully")9}10import (11func OpenFile(fileName string) (*os.File, error) {12 return os.Open(fileName)13}14import "fmt"15func main() {16 fmt.Println("Hello world")17}

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OpenFile

Using AI Code Generation

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1import (2func main() {3 f, err := util.OpenFile("test.txt")4 if err != nil {5 fmt.Println(err)6 os.Exit(1)7 }8 fmt.Println(f.Name(), "opened successfully")9}10import (11func OpenFile(name string) (*os.File, error) {12 return os.Open(name)13}14 /usr/lib/go-1.10/src/util (from $GOROOT)15 /home/username/go/src/util (from $GOPATH)

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OpenFile

Using AI Code Generation

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1import (2func main() {3 f, err := util.OpenFile("1.go")4 if err != nil {5 log.Fatal(err)6 }7 fmt.Println(f)8}9import (10func OpenFile(name string) (*os.File, error) {11 return os.Open(name)12}

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OpenFile

Using AI Code Generation

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1import (2func main() {3 file, err:= util.OpenFile("test.txt")4 if err != nil {5 fmt.Println(err)6 } else {7 fmt.Println(file)8 }9}10import (11func OpenFile(fileName string) (*os.File, error) {12 file, err := os.Open(fileName)13 if err != nil {14 return nil, fmt.Errorf("Error opening file: %s", err)15 }16}17&{0xc0000a4000}18Go: Error Handling - Using errors.New() and fmt.Errorf()19Go: Error Handling - Using os.Open() and os.Create()20Go: Error Handling - Using strconv.Atoi() and strconv.ParseInt()21Go: Error Handling - Using bufio.NewScanner()22Go: Error Handling - Using io.Copy()23Go: Error Handling - Using io.ReadFull()24Go: Error Handling - Using io.WriteString()25Go: Error Handling - Using io.ReadAtLeast()26Go: Error Handling - Using io.ReadFull()

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OpenFile

Using AI Code Generation

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1import (2func main() {3 fmt.Println("Hello, playground")4 util.OpenFile()5}6import (7func OpenFile() {8 f, err := os.OpenFile("test.txt", os.O_RDWR, 0666)9 if err != nil {10 fmt.Println(err)11 }12 defer f.Close()13}

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OpenFile

Using AI Code Generation

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1import (2func main() {3 fmt.Println("Start of main")4 util.OpenFile("test.txt")5 fmt.Println("End of main")6}7import (8func OpenFile(filename string) {9 fmt.Println("Start of OpenFile")10 file, err := os.Open(filename)11 if err != nil {12 fmt.Println("Error in opening file")13 }14 defer file.Close()15 fmt.Println("End of OpenFile")16}

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