err = multierror.Append(err, e)
		}
		return
	})
}

// When we cleanup, we should not delete CRDs. This will filter out all the crds
func removeCRDs(istioYaml string) string {
	allParts := yml.SplitString(istioYaml)
	nonCrds := make([]string, 0, len(allParts))

	// Make the regular expression multi-line and anchor to the beginning of the line.
	r := regexp.MustCompile(`(?m)^kind: CustomResourceDefinition$`)

	c.yamlText[ns] = append(c.yamlText[ns], splitYAML(yamlText...)...)
	return c
}

func splitYAML(yamlText ...string) []string {
	var out []string
	for _, doc := range yamlText {
		out = append(out, yml.SplitString(doc)...)
	}
	return out
}

func (c *configPlan) File(ns string, paths ...string) config.Plan {
	yamlText, err := file.AsStringArray(paths...)
	if err != nil {
		panic(err)
	}

	a, ok := f.CanonicalLocalSlots[slot]
	if !ok {
		a = new(LocalSlot)
		*a = slot // don't escape slot
		f.CanonicalLocalSlots[slot] = a
	}
	return a
}

func (f *Func) SplitString(name *LocalSlot) (*LocalSlot, *LocalSlot) {
	ptrType := types.NewPtr(types.Types[types.TUINT8])
	lenType := types.Types[types.TINT]
	// Split this string up into two separate variables.