drone-yaml/yaml/env.go

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// Copyright (c) 2019, Drone IO Inc.
// Copyright (c) 2021, Robert Kaussow <mail@thegeeklab.de>
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package yaml
type (
// Variable represents an environment variable that
// can be defined as a string literal or as a reference
// to a secret.
Variable struct {
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Value string `json:"value,omitempty"`
Secret string `json:"from_secret,omitempty" yaml:"from_secret"`
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}
// variable is a tempoary type used to unmarshal
// variables with references to secrets.
variable struct {
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Value string
Secret string `yaml:"from_secret"`
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}
)
// UnmarshalYAML implements yaml unmarshalling.
func (v *Variable) UnmarshalYAML(unmarshal func(interface{}) error) error {
d := new(variable)
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err := unmarshal(&d.Value)
if err != nil {
err = unmarshal(d)
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}
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v.Value = d.Value
v.Secret = d.Secret
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return err
}
// MarshalYAML implements yaml marshalling.
func (v *Variable) MarshalYAML() (interface{}, error) {
if v.Secret != "" {
m := map[string]interface{}{}
m["from_secret"] = v.Secret
return m, nil
}
if v.Value != "" {
return v.Value, nil
}
return nil, nil
}