2015-10-03 23:28
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I'm currently having a problem with os.OpenFile. It just gives me "permission denied" when i run my go test.

type log struct {
    Message   string
    Source    string
    Timestamp time.Time
    ErrorCode ErrorCode

type ErrorCode int

const (
    Info ErrorCode = 1 + iota

func (errorCode ErrorCode) String() string {
    switch errorCode {
    case Info:
            return "Info"
    case Warning:
            return "Warning"
    case Error:
            return "Error"
    return "Type not found"

func writeToLog(logItem log) {
    err := os.Chdir("..")
    if err != nil {
            fmt.Println("Can't change working directory")
    err = os.Mkdir("logs", os.FileMode(0777))
    if err != nil && os.IsNotExist(err) {
            fmt.Println("Can't create log directory")
    f, err := os.OpenFile("logs/log.txt",
            os.O_WRONLY|os.O_CREATE|os.O_APPEND, os.FileMode(0666))
    if err != nil {
            fmt.Println("Can't find logfile")
    defer f.Sync()
    defer f.Close()

    f.WriteString(logItem.ErrorCode.String() + logItem.Source +
            logItem.Message + logItem.Timestamp.String())


Can't find logfile
open logs/log.txt: permission denied
Can't find logfile
open logs/log.txt: permission denied

What am I doint wrong? It seems like OpenFile doesn't set my permissions correctly (-rw-r--r--).

Thanks in advance

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1条回答 默认 最新

  • doulu2576 2015-10-04 08:16

    So I was able to solve this problem.


    was called over and over again. And obviously the current working directory is stored and doesn't change back to what it was after the func was done.

    After removing it, everything worked perfectly normal. I just added the ../ to the os.Mkdir and to os.OpenFile.

    I'm looking to work with environment variables to makes this work better I think.

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