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/*
* Copyright (C) 2017 ~ 2018 Deepin Technology Co., Ltd.
*
* Author: jouyouyun <jouyouwen717@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package keyfile
import (
"bytes"
"io"
"os"
)
func (f *KeyFile) SaveToWriter(w io.Writer) error {
const equalSign = "="
var buf bytes.Buffer
for _, section := range f.sectionList {
// write section comments
sectionComments := f.GetSectionComments(section)
if len(sectionComments) > 0 {
if _, err := buf.WriteString(sectionComments); err != nil {
return err
}
if _, err := buf.WriteString(LineBreak); err != nil {
return err
}
}
// write section name
if err := buf.WriteByte('['); err != nil {
return err
}
if _, err := buf.WriteString(section); err != nil {
return err
}
if err := buf.WriteByte(']'); err != nil {
return err
}
if _, err := buf.WriteString(LineBreak); err != nil {
return err
}
// write keys
for _, key := range f.keyList[section] {
// ignore empty key
if key == "" {
continue
}
// write key comments
keyComments := f.GetKeyComments(section, key)
if len(keyComments) > 0 {
if _, err := buf.WriteString(keyComments); err != nil {
return err
}
if _, err := buf.WriteString(LineBreak); err != nil {
return err
}
}
// write key and value
if _, err := buf.WriteString(key); err != nil {
return err
}
if _, err := buf.WriteString(equalSign); err != nil {
return err
}
value := f.data[section][key]
if _, err := buf.WriteString(value); err != nil {
return err
}
if _, err := buf.WriteString(LineBreak); err != nil {
return err
}
}
// Put a line between sections.
if _, err := buf.WriteString(LineBreak); err != nil {
return err
}
}
_, err := buf.WriteTo(w)
return err
}
func (kf *KeyFile) SaveToFile(file string) error {
fh, err := os.Create(file)
if err != nil {
return err
}
defer fh.Close()
return kf.SaveToWriter(fh)
}
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