micro/internal/config/plugin_manager.go
2019-12-25 17:05:11 -05:00

67 lines
2.1 KiB
Go

package config
import (
"bytes"
"encoding/json"
"errors"
)
var (
ErrMissingName = errors.New("Missing or empty name field")
ErrMissingDesc = errors.New("Missing or empty description field")
ErrMissingSite = errors.New("Missing or empty website field")
ErrMissingInstall = errors.New("Missing or empty install field")
ErrMissingVstr = errors.New("Missing or empty versions field")
ErrMissingRequire = errors.New("Missing or empty require field")
)
// PluginInfo contains all the needed info about a plugin
// The info is just strings and are not used beyond that (except
// the Site and Install fields should be valid URLs). This means
// that the requirements for example can be formatted however the
// plugin maker decides, the fields will only be parsed by humans
// Name: name of plugin
// Desc: description of plugin
// Site: home website of plugin
// Install: install link for plugin (can be link to repo or zip file)
// Vstr: version
// Require: list of dependencies and requirements
type PluginInfo struct {
Name string `json:"name"`
Desc string `json:"description"`
Site string `json:"website"`
Install string `json:"install"`
Vstr string `json:"version"`
Require []string `json:"require"`
}
// NewPluginInfo parses a JSON input into a valid PluginInfo struct
// Returns an error if there are any missing fields or any invalid fields
// There are no optional fields in a plugin info json file
func NewPluginInfo(data []byte) (*PluginInfo, error) {
var info PluginInfo
dec := json.NewDecoder(bytes.NewReader(data))
// dec.DisallowUnknownFields() // Force errors
if err := dec.Decode(&info); err != nil {
return nil, err
}
// if len(info.Name) == 0 {
// return nil, ErrMissingName
// } else if len(info.Desc) == 0 {
// return nil, ErrMissingDesc
// } else if len(info.Site) == 0 {
// return nil, ErrMissingSite
// } else if len(info.Install) == 0 {
// return nil, ErrMissingInstall
// } else if len(info.Vstr) == 0 {
// return nil, ErrMissingVstr
// } else if len(info.Require) == 0 {
// return nil, ErrMissingRequire
// }
return &info, nil
}