homemaker/config.go
2015-09-04 13:55:44 +09:00

72 lines
2.0 KiB
Go

/*
* Copyright (c) 2015 Alex Yatskov <alex@foosoft.net>
* Author: Alex Yatskov <alex@foosoft.net>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package main
import (
"encoding/json"
"fmt"
"io/ioutil"
"path"
"github.com/naoina/toml"
"gopkg.in/yaml.v2"
)
type config struct {
Tasks map[string]task
Macros map[string]macro
handled map[string]bool
srcDir string
dstDir string
variant string
flags int
}
func newConfig(filename string) (*config, error) {
bytes, err := ioutil.ReadFile(filename)
if err != nil {
return nil, err
}
conf := &config{handled: make(map[string]bool)}
switch path.Ext(filename) {
case ".json":
if err := json.Unmarshal(bytes, &conf); err != nil {
return nil, err
}
case ".toml", ".tml":
if err := toml.Unmarshal(bytes, &conf); err != nil {
return nil, err
}
case ".yaml", ".yml":
if err := yaml.Unmarshal(bytes, &conf); err != nil {
return nil, err
}
default:
return nil, fmt.Errorf("unsupported configuration file format")
}
return conf, nil
}