plugeth/logger/log.go

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package logger
import (
"fmt"
"io"
"log"
"os"
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"github.com/ethereum/go-ethereum/common"
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)
func openLogFile(datadir string, filename string) *os.File {
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path := common.AbsolutePath(datadir, filename)
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file, err := os.OpenFile(path, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0666)
if err != nil {
panic(fmt.Sprintf("error opening log file '%s': %v", filename, err))
}
return file
}
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func New(datadir string, logFile string, logLevel int, logFormat string) LogSystem {
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var writer io.Writer
if logFile == "" {
writer = os.Stdout
} else {
writer = openLogFile(datadir, logFile)
}
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var sys LogSystem
switch logFormat {
case "raw":
sys = NewRawLogSystem(writer, 0, LogLevel(logLevel))
default:
sys = NewStdLogSystem(writer, log.LstdFlags, LogLevel(logLevel))
}
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AddLogSystem(sys)
return sys
}