func (log *Standard) Configure(style string, debug bool, filename string) {
log.configureMutex.Lock()
defer log.configureMutex.Unlock()
log.filename = filename
var logfmt string
if debug {
logfmt = fancyFormat
} else {
logfmt = defaultFormat
}
// Override the format above if an explicit style was specified.
switch style {
case "default":
logfmt = defaultFormat // Default
case "plain":
logfmt = plainFormat // Plain
case "file":
logfmt = fileFormat // Good for logging to files
case "fancy":
logfmt = fancyFormat // Fancy, good for terminals with color
}
if debug {
logging.SetLevel(logging.DEBUG, log.module)
}
logging.SetFormatter(logging.MustStringFormatter(logfmt))
}
func (log *Standard) setLogLevelInfo() {
initLoggingSetLevelMutex.Lock()
defer initLoggingSetLevelMutex.Unlock()
if _, found := initLoggingSetLevelCalled[log.module]; !found {
logging.SetLevel(logging.INFO, log.module)
initLoggingSetLevelCalled[log.module] = struct{}{}
}
}
func (log *Standard) initLogging() {
// Logging is always done to stderr. It's the responsibility of the
// launcher (like launchd on OSX, or the autoforking code) to set up stderr
// to point to the appropriate log file.
initLoggingBackendOnce.Do(func() {
logBackend := logging.NewLogBackend(os.Stderr, "", 0)
logging.SetBackend(logBackend)
logging.SetLevel(logging.INFO, log.module)
})
}
func (log *Standard) initLogging(iow io.Writer) {
// Logging is always done to the given io.Writer. It's the
// responsibility of the launcher (like launchd on OSX, or the
// autoforking code) to set it up to point to the appropriate
// log file.
initLoggingBackendOnce.Do(func() {
logBackend := logging.NewLogBackend(iow, "", 0)
logging.SetBackend(logBackend)
})
initLoggingSetLevelMutex.Lock()
defer initLoggingSetLevelMutex.Unlock()
if initLoggingSetLevelCalled == nil {
initLoggingSetLevelCalled = make(map[string]bool)
}
if !initLoggingSetLevelCalled[log.module] {
logging.SetLevel(logging.INFO, log.module)
initLoggingSetLevelCalled[log.module] = true
}
}