krystal/go-katapult

// Package buildspec implements the Katapult Virtual Machine build spec XML
// document format.
//
// It supports both building and parsing buld spec XML documents to/from Go
// structs, JSON and YAML.
package buildspec

import (
    "encoding/json"
    "encoding/xml"
    "io"

    "gopkg.in/yaml.v3"
)

const (
    address   = "address"
    name      = "name"
    permalink = "permalink"
)

// FromJSON parses a JSON build spec document into a *VirtualMachineSpec object.
func FromJSON(r io.Reader) (*VirtualMachineSpec, error) {
    dec := json.NewDecoder(r)
    dec.DisallowUnknownFields()

    spec := &VirtualMachineSpec{}
    err := dec.Decode(spec)

    return spec, err
}

// FromXML parses a XML build spec document into a *VirtualMachineSpec object.
func FromXML(r io.Reader) (*VirtualMachineSpec, error) {
    dec := xml.NewDecoder(r)

    spec := &VirtualMachineSpec{}
    err := dec.Decode(spec)

    return spec, err
}

// FromYAML parses a YAML build spec document into a *VirtualMachineSpec object.
func FromYAML(r io.Reader) (*VirtualMachineSpec, error) {
    dec := yaml.NewDecoder(r)
    dec.KnownFields(true)

    spec := &VirtualMachineSpec{}
    err := dec.Decode(spec)

    return spec, err
}