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env.go
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/
env.go
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package argoutil
import (
"sort"
corev1 "k8s.io/api/core/v1"
)
// EnvMerge merges two slices of EnvVar entries into a single one. If existing
// has an EnvVar with same Name attribute as one in merge, the EnvVar is not
// merged unless override is set to true.
func EnvMerge(existing []corev1.EnvVar, merge []corev1.EnvVar, override bool) []corev1.EnvVar {
ret := []corev1.EnvVar{}
final := map[string]corev1.EnvVar{}
for _, e := range existing {
final[e.Name] = e
}
for _, m := range merge {
if _, ok := final[m.Name]; ok {
if override {
final[m.Name] = m
}
} else {
final[m.Name] = m
}
}
for _, v := range final {
ret = append(ret, v)
}
// sort result slice by env name
sort.SliceStable(ret,
func(i, j int) bool {
return ret[i].Name < ret[j].Name
})
return ret
}