How to build repetitive struct - go

Question

I have a program which parses yamls file to an objects (structs).
I use the following repo to do it
https://github.com/go-yaml/yaml
for example in the file I have:
dependency :
- name: ui
type: runner
cwd: /ui
install:
- name: api
group: test
And I use the following struct for it
type Dependency struct {
Name string
Type string
CWD string
Install []Install
//here I have the issue
Requires ?
}
type Install struct {
Name string
Group string
}
Now I have two few issue with a bit complex struct.
This is the entry which could be inside the Dependency struct and this is how it look in the yaml file
requires:
- name: db
- type: mongo
but it also can be
requires:
- name: db
- name: rst
- name: test
- name: test2
Since it have multiple name properties how should I got build this struct
In addition I've field in the yaml
_type-version: "1.0.0"
when I put it inside struct like following I got error since I use -
type TypeVer struct{
_Type-version string
}
How to overcome this?

Answer 1

The yaml package actually allows you to remap the the name for the properties, you can use this to handle your _type-version Property.
And your initial question: Just define Requires the same as Install:
package main
import (
"fmt"
"log"
"github.com/go-yaml/yaml"
)
type File struct {
TypeVersion string `yaml:"_type-version"`
Dependency []Dependency
}
type Dependency struct {
Name string
Type string
CWD string
Install []Install
Requires []Requires
}
type Install struct {
Name string
Group string
}
type Requires struct {
Name string
Type string
}
var data = `
_type-version: "1.0.0"
dependency:
- name: ui
type: runner
cwd: /ui
install:
- name: api
group: test
requires:
- name: db
- type: mongo
- name: rst
- name: test
- name: test2
`
func main() {
f := File{}
err := yaml.Unmarshal([]byte(data), &f)
if err != nil {
log.Fatalf("error: %v", err)
}
fmt.Printf("--- t:\n%v\n\n", f)
d, err := yaml.Marshal(&f)
if err != nil {
log.Fatalf("error: %v", err)
}
fmt.Printf("--- t dump:\n%s\n\n", string(d))
}