logexporter/cmd/main.go
func createSystemdLogfile(service string, outputMode string, outputDir string) error {
	// Generate the journalctl command.
	journalCmdArgs := []string{fmt.Sprintf("--output=%v", outputMode), "-D", *journalPath}
	if service == "kern" {
		journalCmdArgs = append(journalCmdArgs, "-k")
	} else {
		journalCmdArgs = append(journalCmdArgs, "-u", fmt.Sprintf("%v.service", service))
	}
	cmd := exec.Command("journalctl", journalCmdArgs...)

	// Run the command and record the output to a file.
	output, err := cmd.Output()
	if err != nil {
		return fmt.Errorf("Journalctl command for '%v' service failed: %v", service, err)
	}
	logfile := filepath.Join(outputDir, service+".log")
	if err := ioutil.WriteFile(logfile, output, 0444); err != nil {
		return fmt.Errorf("Writing to file of journalctl logs for '%v' service failed: %v", service, err)
	}
	return nil
}
func createSystemdLogfile(service string, outputMode string, outputDir string) error {
	// Generate the journalctl command.
	journalCmdArgs := []string{fmt.Sprintf("--output=%v", outputMode), "-D", *journalPath}
	if service == "kern" {
		journalCmdArgs = append(journalCmdArgs, "-k")
	} else {
		journalCmdArgs = append(journalCmdArgs, "-u", fmt.Sprintf("%v.service", service))
	}
	cmd := exec.Command("journalctl", journalCmdArgs...)

	// Run the command and record the output to a file.
	output, err := cmd.Output()
	if err != nil {
		return fmt.Errorf("Journalctl command for '%v' service failed: %v", service, err)
	}
	logfile := filepath.Join(outputDir, service+".log")
	if err := ioutil.WriteFile(logfile, output, 0444); err != nil {
		return fmt.Errorf("Writing to file of journalctl logs for '%v' service failed: %v", service, err)
	}
	return nil
}
func createSystemdLogfile ( service string , outputMode string , outputDir string ) error { // Generate the journalctl command. journalCmdArgs := [ ] string { fmt . Sprintf ( " " , outputMode ) , " " , * journalPath } if service == " " { journalCmdArgs = append ( journalCmdArgs , " " ) } else { journalCmdArgs = append ( journalCmdArgs , " " , fmt . Sprintf ( " " , service ) ) } cmd := exec . Command ( " " , journalCmdArgs ... ) // Run the command and record the output to a file. output , err := cmd . Output ( ) if err != nil { return fmt . Errorf ( " " , service , err ) } logfile := filepath . Join ( outputDir , service + " " ) if err := ioutil . WriteFile ( logfile , output , 0444 ) ; err != nil { return fmt . Errorf ( " " , service , err ) } return nil }
// Create logfile for systemd service in outputDir with the given journalctl outputMode.
Create logfile for systemd service in outputDir with the given journalctl outputMode .