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package logging
import "os"
// File writes its logs to file.
type File struct {
fo, fe *os.File
*LogWriter
}
func (fl *File) Close() {
fl.fo.Close()
if fl.fe != nil {
fl.fe.Close()
}
}
// NewFile creates a new Logger that writes all logs to the file
// specified by path. If overwrite is specified, the log file will be
// truncated before writing. Otherwise, the log file will be appended
// to.
func NewFile(path string, overwrite bool) (*File, error) {
fl := new(File)
var err error
if overwrite {
fl.fo, err = os.Create(path)
} else {
fl.fo, err = os.OpenFile(path, os.O_WRONLY|os.O_APPEND, 0644)
}
if err != nil {
return nil, err
}
fl.LogWriter = NewLogWriter(fl.fo, fl.fo)
return fl, nil
}
// NewSplitFile creates a new Logger that writes debug and information
// messages to the output file, and warning and higher messages to the
// error file. If overwrite is specified, the log files will be
// truncated before writing.
func NewSplitFile(outpath, errpath string, overwrite bool) (*File, error) {
fl := new(File)
var err error
if overwrite {
fl.fo, err = os.Create(outpath)
} else {
fl.fo, err = os.OpenFile(outpath, os.O_WRONLY|os.O_APPEND, 0644)
}
if err != nil {
return nil, err
}
if overwrite {
fl.fe, err = os.Create(errpath)
} else {
fl.fe, err = os.OpenFile(errpath, os.O_WRONLY|os.O_APPEND, 0644)
}
if err != nil {
fl.Close()
return nil, err
}
fl.LogWriter = NewLogWriter(fl.fo, fl.fe)
return fl, nil
}
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