ContainerImage.Pinniped/internal/controller/conditionsutil/conditions_util.go.go

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// Copyright 2021 the Pinniped contributors. All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
package conditionsutil
import (
"sort"
"k8s.io/apimachinery/pkg/api/equality"
v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"go.pinniped.dev/generated/latest/apis/supervisor/idp/v1alpha1"
"go.pinniped.dev/internal/plog"
)
// Merge merges conditions into conditionsToUpdate. If returns true if it merged any error conditions.
func Merge(conditions []*v1alpha1.Condition, observedGeneration int64, conditionsToUpdate *[]v1alpha1.Condition, log plog.MinLogger) bool {
hadErrorCondition := false
for i := range conditions {
cond := conditions[i].DeepCopy()
cond.LastTransitionTime = v1.Now()
cond.ObservedGeneration = observedGeneration
if mergeCondition(conditionsToUpdate, cond) {
log.Info("updated condition", "type", cond.Type, "status", cond.Status, "reason", cond.Reason, "message", cond.Message)
}
if cond.Status == v1alpha1.ConditionFalse {
hadErrorCondition = true
}
}
sort.SliceStable(*conditionsToUpdate, func(i, j int) bool {
return (*conditionsToUpdate)[i].Type < (*conditionsToUpdate)[j].Type
})
return hadErrorCondition
}
// mergeCondition merges a new v1alpha1.Condition into a slice of existing conditions. It returns true
// if the condition has meaningfully changed.
func mergeCondition(existing *[]v1alpha1.Condition, new *v1alpha1.Condition) bool {
// Find any existing condition with a matching type.
var old *v1alpha1.Condition
for i := range *existing {
if (*existing)[i].Type == new.Type {
old = &(*existing)[i]
continue
}
}
// If there is no existing condition of this type, append this one and we're done.
if old == nil {
*existing = append(*existing, *new)
return true
}
// Set the LastTransitionTime depending on whether the status has changed.
new = new.DeepCopy()
if old.Status == new.Status {
new.LastTransitionTime = old.LastTransitionTime
}
// If anything has actually changed, update the entry and return true.
if !equality.Semantic.DeepEqual(old, new) {
*old = *new
return true
}
// Otherwise the entry is already up to date.
return false
}