helmfile/pkg/environment/environment.go

86 lines
1.8 KiB
Go

package environment
import (
"github.com/helmfile/helmfile/pkg/maputil"
"github.com/imdario/mergo"
"gopkg.in/yaml.v2"
)
type Environment struct {
Name string
Values map[string]interface{}
Defaults map[string]interface{}
}
var EmptyEnvironment Environment
func (e Environment) DeepCopy() Environment {
valuesBytes, err := yaml.Marshal(e.Values)
if err != nil {
panic(err)
}
var values map[string]interface{}
if err := yaml.Unmarshal(valuesBytes, &values); err != nil {
panic(err)
}
values, err = maputil.CastKeysToStrings(values)
if err != nil {
panic(err)
}
defaultsBytes, err := yaml.Marshal(e.Defaults)
if err != nil {
panic(err)
}
var defaults map[string]interface{}
if err := yaml.Unmarshal(defaultsBytes, &defaults); err != nil {
panic(err)
}
defaults, err = maputil.CastKeysToStrings(defaults)
if err != nil {
panic(err)
}
return Environment{
Name: e.Name,
Values: values,
Defaults: defaults,
}
}
func (e *Environment) Merge(other *Environment) (*Environment, error) {
if e == nil {
if other != nil {
copy := other.DeepCopy()
return &copy, nil
}
return nil, nil
}
copy := e.DeepCopy()
if other != nil {
if err := mergo.Merge(&copy, other, mergo.WithOverride, mergo.WithOverwriteWithEmptyValue); err != nil {
return nil, err
}
}
return &copy, nil
}
func (e *Environment) GetMergedValues() (map[string]interface{}, error) {
vals := map[string]interface{}{}
if err := mergo.Merge(&vals, e.Defaults, mergo.WithOverride, mergo.WithOverwriteWithEmptyValue); err != nil {
return nil, err
}
if err := mergo.Merge(&vals, e.Values, mergo.WithOverride, mergo.WithOverwriteWithEmptyValue); err != nil {
return nil, err
}
vals, err := maputil.CastKeysToStrings(vals)
if err != nil {
return nil, err
}
return vals, nil
}