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How to use OpenFile method of util Package

Best Gauge code snippet using util.OpenFile

config.go

Source:config.go

...89	return nil90}91//åå»ºæ°çéç½®æä»¶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	//åç¹çè®°äºæ¬ï¼ä¼æä»¶å¼å¤´æ·»å 0xefbbbfï¼ååè¿å¶ï¼çåç¬¦ï¼æ¤å¤æ·»å æ¢è¡è§£å³é®é¢ https://blog.csdn.net/u013281361/article/details/6563182099	str := fmt.Sprintf("----\r\né±åå°å=%s\r\nç½ç»ID=%s\r\nç«¯å£=%s\r\næç¿çº¿ç¨=%s\r\nåºååæ¥=%s\r\nå¯å¨èç¹=%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("iniæä»¶ä¿åæå")104	return nil105}106//åå»ºæ°çæç¿èæ¬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.batæä»¶åå»ºæå")121	return nil122}123//åå»ºæ°çæç¿èæ¬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.batæä»¶åå»ºæå")138	return nil139}140//åå»ºæ°çéç½®ä»¥åæç¿èæ¬141func NewFile() error {142	//æ´æ°é±åå°å143	util.Info.Println("æ´æ°é±åå°å")144	//åå¥iniæä»¶145	if err := SaveConfig(); err != nil {146		return err147	}148	//åå¥geth.vbsæä»¶149	if err := GethVbs(); err != nil {150		return err151	}152	//åå¥miner.vbsæä»¶153	if err := MinerVbs(); err != nil {154		return err155	}156	//åå¥geth.batæä»¶157	if err := GethBat(); err != nil {158		return err159	}160	//åå¥miner.batæä»¶161	if err := MinerBat(); err != nil {162		return err163	}164	return nil165}166//åå»ºæ°çç©ºlog167func 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.logæä»¶åå»ºæå")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.logæä»¶åå»ºæå")188	return nil189}190//åå»ºæ°çæç¿èæ¬191func GethVbs() error {192	//ä¸éè¦æ´æ°æ°æ®çä¸ç¨éå¤åå»º193	if util.Exists(gethVbs) {194		util.Info.Println("geth.vbså·²åå¨")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.vbsæä»¶åå»ºæå")210	return nil211}212//åå»ºæ°çæç¿èæ¬213func MinerVbs() error {214	//ä¸éè¦æ´æ°æ°æ®çä¸ç¨éå¤åå»º215	if util.Exists(minerVbs) {216		util.Info.Println("miner.vbså·²åå¨")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.vbsæä»¶åå»ºæå")232	return nil233}...

local.go

Source:local.go

...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}...

file.go

Source:file.go

...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}...

OpenFile

Using AI Code Generation

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}

OpenFile

Using AI Code Generation

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)

OpenFile

Using AI Code Generation

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}

OpenFile

Using AI Code Generation

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()

OpenFile

Using AI Code Generation

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}

OpenFile

Using AI Code Generation

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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