1 files changed, 50 insertions, 0 deletions
diff --git a/src/k8splugin/internal/app/hook_sorter.go b/src/k8splugin/internal/app/hook_sorter.go
new file mode 100644
index 00000000..fa6a9830
--- /dev/null
+++ b/src/k8splugin/internal/app/hook_sorter.go
@@ -0,0 +1,50 @@
+/*
+Copyright © 2021 Nokia Bell Labs
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+    http://www.apache.org/licenses/LICENSE-2.0
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package app
+
+import (
+	"github.com/onap/multicloud-k8s/src/k8splugin/internal/helm"
+	sortLib "sort"
+)
+
+// sortByHookWeight does an in-place sort of hooks by their supplied weight.
+func sortByHookWeight(hooks []*helm.Hook) []*helm.Hook {
+	hs := newHookWeightSorter(hooks)
+	sortLib.Sort(hs)
+	return hs.hooks
+}
+
+type hookWeightSorter struct {
+	hooks []*helm.Hook
+}
+
+func newHookWeightSorter(h []*helm.Hook) *hookWeightSorter {
+	return &hookWeightSorter{
+		hooks: h,
+	}
+}
+
+func (hs *hookWeightSorter) Len() int { return len(hs.hooks) }
+
+func (hs *hookWeightSorter) Swap(i, j int) {
+	hs.hooks[i], hs.hooks[j] = hs.hooks[j], hs.hooks[i]
+}
+
+func (hs *hookWeightSorter) Less(i, j int) bool {
+	if hs.hooks[i].Hook.Weight == hs.hooks[j].Hook.Weight {
+		return hs.hooks[i].Hook.Name < hs.hooks[j].Hook.Name
+	}
+	return hs.hooks[i].Hook.Weight < hs.hooks[j].Hook.Weight
+}
+