Function Interpolate

cli/compose/interpolation/interpolation.go:34–56

Interpolate replaces variables in a string with the values from a mapping

(config map[string]any, opts Options)

// Interpolate replaces variables in a string with the values from a mapping
func Interpolate(config map[string]any, opts Options) (map[string]any, error) {
	if opts.LookupValue == nil {
		opts.LookupValue = os.LookupEnv
	}
	if opts.TypeCastMapping == nil {
		opts.TypeCastMapping = make(map[Path]Cast)
	}
	if opts.Substitute == nil {
		opts.Substitute = template.Substitute
	}

	out := map[string]any{}

	for key, value := range config {
		interpolatedValue, err := recursiveInterpolate(value, NewPath(key), opts)
		if err != nil {
			return out, err
		}
		out[key] = interpolatedValue
	}

	return out, nil
}

func recursiveInterpolate(value any, path Path, opts Options) (any, error) {
	switch value := value.(type) {