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