// normalize adjusts the conf to more standardized content and
// returns a new Conf with that updated content. It also returns the
// content of any script file that should accompany the conf.
func normalize(name string, conf common.Conf, scriptPath string, renderer confRenderer) (common.Conf, []byte) {
var data []byte
var cmds []string
if conf.Logfile != "" {
filename := conf.Logfile
cmds = append(cmds, "# Set up logging.")
cmds = append(cmds, renderer.Touch(filename, nil)...)
// TODO(ericsnow) We should drop the assumption that the logfile
// is syslog.
user, group := syslogUserGroup()
cmds = append(cmds, renderer.Chown(filename, user, group)...)
cmds = append(cmds, renderer.Chmod(filename, 0600)...)
cmds = append(cmds, renderer.RedirectOutput(filename)...)
cmds = append(cmds, renderer.RedirectFD("out", "err")...)
cmds = append(cmds,
"",
"# Run the script.",
)
// We leave conf.Logfile alone (it will be ignored during validation).
}
cmds = append(cmds, conf.ExecStart)
if conf.ExtraScript != "" {
cmds = append([]string{conf.ExtraScript}, cmds...)
conf.ExtraScript = ""
}
if !isSimpleCommand(strings.Join(cmds, "\n")) {
data = renderer.RenderScript(cmds)
conf.ExecStart = scriptPath
}
if len(conf.Env) == 0 {
conf.Env = nil
}
if len(conf.Limit) == 0 {
conf.Limit = nil
}
if conf.Transient {
// TODO(ericsnow) Handle Transient via systemd-run command?
conf.ExecStopPost = commands{}.disable(name)
}
return conf, data
}
