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e913f573e5
The 'partition' package is actually about bootloaders, so 'bootloader' name seems more fitting. Signed-off-by: Maciej Borzecki <maciej.zenon.borzecki@canonical.com>
91 lines
1.8 KiB
Go
91 lines
1.8 KiB
Go
// -*- Mode: Go; indent-tabs-mode: t -*-
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/*
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* Copyright (C) 2017 Canonical Ltd
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 3 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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package androidbootenv
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import (
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"bufio"
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"bytes"
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"fmt"
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"os"
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"strings"
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"github.com/snapcore/snapd/logger"
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"github.com/snapcore/snapd/osutil"
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)
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type Env struct {
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// Map with key-value strings
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env map[string]string
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// File for environment storage
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path string
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}
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func NewEnv(path string) *Env {
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return &Env{
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env: make(map[string]string),
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path: path,
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}
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}
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func (a *Env) Get(name string) string {
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return a.env[name]
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}
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func (a *Env) Set(key, value string) {
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a.env[key] = value
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}
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func (a *Env) Load() error {
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file, err := os.Open(a.path)
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if err != nil {
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return err
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}
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defer file.Close()
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scanner := bufio.NewScanner(file)
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for scanner.Scan() {
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l := strings.SplitN(scanner.Text(), "=", 2)
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// be liberal in what you accept
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if len(l) < 2 {
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logger.Noticef("WARNING: bad value while parsing %v (line: %q)",
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a.path, scanner.Text())
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continue
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}
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a.env[l[0]] = l[1]
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}
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if err := scanner.Err(); err != nil {
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return err
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}
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return nil
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}
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func (a *Env) Save() error {
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var w bytes.Buffer
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for k, v := range a.env {
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if _, err := fmt.Fprintf(&w, "%s=%s\n", k, v); err != nil {
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return err
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}
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}
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return osutil.AtomicWriteFile(a.path, w.Bytes(), 0644, 0)
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}
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