// systemctlSock is an abstraction of systemctlSockPath and systemctlSockUnit,
// it reads from `systemctl list-sockets` and sees if the value is in the
// appropriate column.
func systemctlSock(value string, column string) (exitCode int, exitMessage string) {
outstr := wrkutils.CommandOutput(exec.Command("systemctl", "list-sockets"))
lines := tabular.Lines(outstr)
msg := "systemctl list-sockers didn't output enough rows"
wrkutils.IndexError(msg, len(lines)-4, lines)
unlines := tabular.Unlines(lines[:len(lines)-4])
table := tabular.SeparateOnAlignment(unlines)
values := tabular.GetColumnByHeader(column, table)
if tabular.StrIn(value, values) {
return 0, ""
}
return wrkutils.GenericError("Socket not found", value, values)
}
// getTimers returns of all the timers under the UNIT column of
// `systemctl list-timers`
func getTimers(all bool) []string {
cmd := exec.Command("systemctl", "list-timers")
if all {
cmd = exec.Command("systemctl", "list-timers", "--all")
}
out, err := cmd.CombinedOutput()
outstr := string(out)
wrkutils.ExecError(cmd, outstr, err)
// last three lines are junk
lines := tabular.Lines(outstr)
msg := fmt.Sprint(cmd.Args) + " didn't output enough lines"
wrkutils.IndexError(msg, 3, lines)
table := tabular.SeparateOnAlignment(tabular.Unlines(lines[:len(lines)-3]))
column := tabular.GetColumnByHeader("UNIT", table)
return column
}
// Timers returns a list of the active systemd timers, as found under the
// UNIT column of `systemctl list-timers`. It can optionally list all timers.
func Timers(all bool) (timers []string, err error) {
cmd := exec.Command("systemctl", "list-timers")
if all {
cmd = exec.Command("systemctl", "list-timers", "--all")
}
out, err := cmd.CombinedOutput()
if err != nil {
return timers, errors.New(err.Error() + ": output: " + string(out))
}
// last three lines are junk
lines := tabular.Lines(string(out))
if len(lines) <= 3 {
msg := fmt.Sprint(cmd.Args) + " didn't output enough lines"
return timers, errors.New(msg)
}
table := tabular.SeparateOnAlignment(tabular.Unlines(lines[:len(lines)-3]))
column := tabular.GetColumnByHeader("UNIT", table)
return column, nil
}