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80 lines
2.0 KiB
80 lines
2.0 KiB
// Copyright 2013 com authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License"): you may
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// not use this file except in compliance with the License. You may obtain
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// a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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// License for the specific language governing permissions and limitations
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// under the License.
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package com
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import (
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"errors"
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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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// GetGOPATHs returns all paths in GOPATH variable.
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func GetGOPATHs() []string {
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gopath := os.Getenv("GOPATH")
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var paths []string
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if runtime.GOOS == "windows" {
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gopath = strings.Replace(gopath, "\\", "/", -1)
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paths = strings.Split(gopath, ";")
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} else {
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paths = strings.Split(gopath, ":")
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}
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return paths
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}
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// GetSrcPath returns app. source code path.
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// It only works when you have src. folder in GOPATH,
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// it returns error not able to locate source folder path.
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func GetSrcPath(importPath string) (appPath string, err error) {
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paths := GetGOPATHs()
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for _, p := range paths {
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if IsExist(p + "/src/" + importPath + "/") {
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appPath = p + "/src/" + importPath + "/"
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break
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}
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}
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if len(appPath) == 0 {
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return "", errors.New("Unable to locate source folder path")
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}
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appPath = filepath.Dir(appPath) + "/"
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if runtime.GOOS == "windows" {
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// Replace all '\' to '/'.
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appPath = strings.Replace(appPath, "\\", "/", -1)
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}
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return appPath, nil
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}
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// HomeDir returns path of '~'(in Linux) on Windows,
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// it returns error when the variable does not exist.
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func HomeDir() (home string, err error) {
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if runtime.GOOS == "windows" {
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home = os.Getenv("USERPROFILE")
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if len(home) == 0 {
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home = os.Getenv("HOMEDRIVE") + os.Getenv("HOMEPATH")
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}
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} else {
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home = os.Getenv("HOME")
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}
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if len(home) == 0 {
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return "", errors.New("Cannot specify home directory because it's empty")
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}
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return home, nil
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}
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