gitroast/vendor/github.com/Unknwon/com/path.go

81 lines
2.0 KiB
Go

// Copyright 2013 com authors
//
// Licensed 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 com
import (
"errors"
"os"
"path/filepath"
"runtime"
"strings"
)
// GetGOPATHs returns all paths in GOPATH variable.
func GetGOPATHs() []string {
gopath := os.Getenv("GOPATH")
var paths []string
if runtime.GOOS == "windows" {
gopath = strings.Replace(gopath, "\\", "/", -1)
paths = strings.Split(gopath, ";")
} else {
paths = strings.Split(gopath, ":")
}
return paths
}
// GetSrcPath returns app. source code path.
// It only works when you have src. folder in GOPATH,
// it returns error not able to locate source folder path.
func GetSrcPath(importPath string) (appPath string, err error) {
paths := GetGOPATHs()
for _, p := range paths {
if IsExist(p + "/src/" + importPath + "/") {
appPath = p + "/src/" + importPath + "/"
break
}
}
if len(appPath) == 0 {
return "", errors.New("Unable to locate source folder path")
}
appPath = filepath.Dir(appPath) + "/"
if runtime.GOOS == "windows" {
// Replace all '\' to '/'.
appPath = strings.Replace(appPath, "\\", "/", -1)
}
return appPath, nil
}
// HomeDir returns path of '~'(in Linux) on Windows,
// it returns error when the variable does not exist.
func HomeDir() (home string, err error) {
if runtime.GOOS == "windows" {
home = os.Getenv("USERPROFILE")
if len(home) == 0 {
home = os.Getenv("HOMEDRIVE") + os.Getenv("HOMEPATH")
}
} else {
home = os.Getenv("HOME")
}
if len(home) == 0 {
return "", errors.New("Cannot specify home directory because it's empty")
}
return home, nil
}