mirror of
https://github.com/syncthing/syncthing.git
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56 lines
1.1 KiB
Go
56 lines
1.1 KiB
Go
// Copyright (C) 2016 The Syncthing Authors.
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//
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this file,
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// You can obtain one at https://mozilla.org/MPL/2.0/.
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package fs
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import (
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"errors"
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"fmt"
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"os"
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"path/filepath"
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"runtime"
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"strings"
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)
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var errNoHome = errors.New("no home directory found - set $HOME (or the platform equivalent)")
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func ExpandTilde(path string) (string, error) {
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if path == "~" {
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return getHomeDir()
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}
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path = filepath.FromSlash(path)
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if !strings.HasPrefix(path, fmt.Sprintf("~%c", PathSeparator)) {
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return path, nil
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}
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home, err := getHomeDir()
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if err != nil {
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return "", err
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}
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return filepath.Join(home, path[2:]), nil
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}
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func getHomeDir() (string, error) {
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var home string
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switch runtime.GOOS {
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case "windows":
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home = filepath.Join(os.Getenv("HomeDrive"), os.Getenv("HomePath"))
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if home == "" {
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home = os.Getenv("UserProfile")
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}
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default:
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home = os.Getenv("HOME")
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}
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if home == "" {
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return "", errNoHome
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}
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return home, nil
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}
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