mirror of
https://gitee.com/rainbond/Rainbond.git
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86 lines
2.2 KiB
Go
86 lines
2.2 KiB
Go
// Copyright (C) 2014-2018 Goodrain Co., Ltd.
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// RAINBOND, Application Management Platform
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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 as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version. For any non-GPL usage of Rainbond,
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// one or multiple Commercial Licenses authorized by Goodrain Co., Ltd.
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// must be obtained first.
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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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// 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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package sources
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import (
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"bytes"
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"errors"
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"os"
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"os/exec"
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"os/user"
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"runtime"
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"strings"
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)
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// Home returns the home directory for the executing user.
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//
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// This uses an OS-specific method for discovering the home directory.
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// An error is returned if a home directory cannot be detected.
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func Home() (string, error) {
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user, err := user.Current()
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if nil == err {
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return user.HomeDir, nil
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}
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// cross compile support
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if "windows" == runtime.GOOS {
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return homeWindows()
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}
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// Unix-like system, so just assume Unix
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return homeUnix()
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}
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func homeUnix() (string, error) {
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// First prefer the HOME environmental variable
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if home := os.Getenv("HOME"); home != "" {
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return home, nil
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}
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// If that fails, try the shell
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var stdout bytes.Buffer
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cmd := exec.Command("sh", "-c", "eval echo ~$USER")
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cmd.Stdout = &stdout
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if err := cmd.Run(); err != nil {
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return "", err
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}
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result := strings.TrimSpace(stdout.String())
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if result == "" {
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return "", errors.New("blank output when reading home directory")
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}
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return result, nil
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}
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func homeWindows() (string, error) {
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drive := os.Getenv("HOMEDRIVE")
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path := os.Getenv("HOMEPATH")
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home := drive + path
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if drive == "" || path == "" {
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home = os.Getenv("USERPROFILE")
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}
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if home == "" {
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return "", errors.New("HOMEDRIVE, HOMEPATH, and USERPROFILE are blank")
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}
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return home, nil
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}
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