rclone/fs/log/systemd_unix.go

60 lines
1.4 KiB
Go

// Systemd interface for Unix variants only
//go:build unix
package log
import (
"fmt"
"log"
"strconv"
"strings"
"github.com/coreos/go-systemd/v22/journal"
"github.com/rclone/rclone/fs"
)
// Enables systemd logs if configured or if auto-detected
func startSystemdLog() bool {
flagsStr := "," + Opt.Format + ","
var flags int
if strings.Contains(flagsStr, ",longfile,") {
flags |= log.Llongfile
}
if strings.Contains(flagsStr, ",shortfile,") {
flags |= log.Lshortfile
}
log.SetFlags(flags)
// TODO: Use the native journal.Print approach rather than a custom implementation
fs.LogPrint = func(level fs.LogLevel, text string) {
text = fmt.Sprintf("<%s>%-6s: %s", systemdLogPrefix(level), level, text)
_ = log.Output(4, text)
}
return true
}
var logLevelToSystemdPrefix = []journal.Priority{
fs.LogLevelEmergency: journal.PriEmerg,
fs.LogLevelAlert: journal.PriAlert,
fs.LogLevelCritical: journal.PriCrit,
fs.LogLevelError: journal.PriErr,
fs.LogLevelWarning: journal.PriWarning,
fs.LogLevelNotice: journal.PriNotice,
fs.LogLevelInfo: journal.PriInfo,
fs.LogLevelDebug: journal.PriDebug,
}
func systemdLogPrefix(l fs.LogLevel) string {
if l >= fs.LogLevel(len(logLevelToSystemdPrefix)) {
return ""
}
return strconv.Itoa(int(logLevelToSystemdPrefix[l]))
}
func isJournalStream() bool {
if usingJournald, _ := journal.StderrIsJournalStream(); usingJournald {
return true
}
return false
}