config.go

package main

import (
	"encoding/json"
	"fmt"
	"io/ioutil"
)

type Config struct {
	Dirs         []string     `json:"dirs, omitempty"`
	Files        []string     `json:"files, omitempty"`
	Remote       bool         `json:"remote"`
	Label        string       `json:"label"`
	RemoteConfig RemoteConfig `json:"remote_config, omitempty"`
	Ignore       IgnoreList   `json:"ignore"`
}

type RemoteConfig struct {
	Repo     string `json:"repo"`
	ApiToken string `json:"api_token"`
}

func LoadConfig() (Config, error) {
	var c Config
	// raise error if erkconfig.json is nor found in current directory.
	if !CheckFileExistence(CONF_FILENAME) {
		return c, fmt.Errorf("Configuration file: %s is not found. please run \"erk init\" first.", CONF_FILENAME)
	}

	// read json config file.
	// [todo] - lint json file syntax(is there some json linting impl for golang?)
	body, err := ioutil.ReadFile(CONF_FILENAME)
	if err != nil {
		return c, err
	}

	// parse json and put them into Config struct.
	err = json.Unmarshal(body, &c)
	if err != nil {
		return c, err
	}
	return c, nil
}