/
io.go
74 lines (68 loc) · 2.13 KB
/
io.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
// Licensed to LinDB under one or more contributor
// license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright
// ownership. LinDB licenses this file to you under
// the Apache License, Version 2.0 (the "License"); you may
// not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
package ltoml
import (
"bufio"
"fmt"
"os"
"github.com/BurntSushi/toml"
)
// EncodeToml encodes data into file using toml format,
// encode data to tmp file, if success then rename tmp => target file
func EncodeToml(fileName string, v interface{}) error {
tmp := fmt.Sprintf("%s.tmp", fileName)
f, _ := os.Create(tmp)
w := bufio.NewWriter(f)
// write info using toml format
if err := toml.NewEncoder(w).Encode(v); err != nil {
return err
}
if err := f.Close(); err != nil {
return err
}
if err := os.Rename(tmp, fileName); err != nil {
return fmt.Errorf("rename tmp file[%s] name error:%s", tmp, err)
}
return nil
}
func WriteConfig(fileName, content string) error {
tmp := fmt.Sprintf("%s.tmp", fileName)
f, _ := os.Create(tmp)
w := bufio.NewWriter(f)
if _, err := w.WriteString(content); err != nil {
return err
}
if err := w.Flush(); err != nil {
return err
}
// need close file before rename file name
if err := f.Close(); err != nil {
return err
}
// if file isn't closed, will throw the file be processed other process in windows.
if err := os.Rename(tmp, fileName); err != nil {
return fmt.Errorf("rename tmp file[%s] name error:%s", tmp, err)
}
return nil
}
// DecodeToml decodes data from file using toml format
func DecodeToml(fileName string, v interface{}) error {
if _, err := toml.DecodeFile(fileName, v); err != nil {
return err
}
return nil
}