I am using Google's go-jsonnet library to evaluate some jsonnet files.
I have a function, like so, which renders a Jsonnet document:
// Takes a list of jsonnet files and imports each one and mixes them with "+"
func renderJsonnet(files []string, param string, prune bool) string {
// empty slice
jsonnetPaths := files[:0]
// range through the files
for _, s := range files {
jsonnetPaths = append(jsonnetPaths, fmt.Sprintf("(import '%s')", s))
}
// Create a JSonnet VM
vm := jsonnet.MakeVM()
// Join the slices into a jsonnet compat string
jsonnetImport := strings.Join(jsonnetPaths, "+")
if param != "" {
jsonnetImport = "(" + jsonnetImport + ")" + param
}
if prune {
// wrap in std.prune, to remove nulls, empty arrays and hashes
jsonnetImport = "std.prune(" + jsonnetImport + ")"
}
// render the jsonnet
out, err := vm.EvaluateSnippet("file", jsonnetImport)
if err != nil {
log.Panic("Error evaluating jsonnet snippet: ", err)
}
return out
}
This function currently returns a string, because the jsonnet EvaluateSnippet
function returns a string.
What I now want to do is render that result JSON using the go-prettyjson library. However, because the JSON i'm piping in is a string, it's not rendering correctly.
So, some questions:
- Can I convert the returned JSON string to a JSON type, without knowing beforehand what struct to marshal it into
- if not, can I render the json in a pretty manner some other way?
- Is there an option, function or method I'm missing here to make this easier?