github.com/argoproj-labs/argocd-operator@v0.10.0/controllers/argoutil/env.go (about)

     1  package argoutil
     2  
     3  import (
     4  	"sort"
     5  
     6  	corev1 "k8s.io/api/core/v1"
     7  )
     8  
     9  // EnvMerge merges two slices of EnvVar entries into a single one. If existing
    10  // has an EnvVar with same Name attribute as one in merge, the EnvVar is not
    11  // merged unless override is set to true.
    12  func EnvMerge(existing []corev1.EnvVar, merge []corev1.EnvVar, override bool) []corev1.EnvVar {
    13  	ret := []corev1.EnvVar{}
    14  	final := map[string]corev1.EnvVar{}
    15  	for _, e := range existing {
    16  		final[e.Name] = e
    17  	}
    18  	for _, m := range merge {
    19  		if _, ok := final[m.Name]; ok {
    20  			if override {
    21  				final[m.Name] = m
    22  			}
    23  		} else {
    24  			final[m.Name] = m
    25  		}
    26  	}
    27  
    28  	for _, v := range final {
    29  		ret = append(ret, v)
    30  	}
    31  
    32  	// sort result slice by env name
    33  	sort.SliceStable(ret,
    34  		func(i, j int) bool {
    35  			return ret[i].Name < ret[j].Name
    36  		})
    37  
    38  	return ret
    39  }