Function RunPreps

prep.go:44–82

RunPreps runs all commands in sequence. Stops if any command returns an error.

(
	b conf.Block,
	vars map[string]string,
	mod *moddwatch.Mod,
	log termlog.TermLog,
	notifiers []notify.Notifier,
	initial bool,
)

// RunPreps runs all commands in sequence. Stops if any command returns an error.
func RunPreps(
	b conf.Block,
	vars map[string]string,
	mod *moddwatch.Mod,
	log termlog.TermLog,
	notifiers []notify.Notifier,
	initial bool,
) error {
	sh, err := shell.GetShellName(vars[shellVarName])
	if err != nil {
		return err
	}

	var modified []string
	if mod != nil {
		modified = mod.All()
	}
	vcmd := varcmd.VarCmd{Block: &b, Modified: modified, Vars: vars}
	for _, p := range b.Preps {
		cmd, err := vcmd.Render(p.Command)
		if initial && p.Onchange {
			log.Say(niceHeader("skipping prep: ", cmd))
			continue
		}
		if err != nil {
			return err
		}
		err = RunProc(cmd, sh, b.InDir, log.Stream(niceHeader("prep: ", cmd)))
		if err != nil {
			if pe, ok := err.(ProcError); ok {
				for _, n := range notifiers {
					n.Push("modd error", pe.Output, "")
				}
			}
			return err
		}
	}
	return nil
}