Go依赖管理工具dep

安装：

• Mac：brew install dep
• Linux curl https://raw.githubusercontent.com/golang/dep/master/install.sh | sh

验证

终端输入dep

➜  ~ dep
Dep is a tool for managing dependencies for Go projects

Usage: "dep [command]"

Commands:

  init     Set up a new Go project, or migrate an existing one
  status   Report the status of the project's dependencies
  ensure   Ensure a dependency is safely vendored in the project
  version  Show the dep version information
  check    Check if imports, Gopkg.toml, and Gopkg.lock are in sync

Examples:
  dep init                               set up a new project
  dep ensure                             install the project's dependencies
  dep ensure -update                     update the locked versions of all dependencies
  dep ensure -add github.com/pkg/errors  add a dependency to the project

Use "dep help [command]" for more information about a command.

使用

项目根目录【xhgblog】下执行 dep init

xhgblog目录下会生成以下文件

├── Gopkg.lock
├── Gopkg.toml
└── vendor

依赖管理

# 添加依赖包
dep ensure -add github.com/go-sql-driver/mysql
# 指定版本
dep ensure -add github.com/go-sql-driver/mysql@=1.4.0
# 同步
dep ensure
# 删除未使用的包
dep piune -v
# 依赖更新
dep ensure -update -v 

报错

访问golang.org超时

➜  test git:(master) ✗ dep ensure
The following issues were found in Gopkg.toml:

  ✗ unable to deduce repository and source type for "golang.org/x/crypto": unable to read metadata: unable to fetch raw metadata: failed HTTP request to URL "http://golang.org/x/crypto?go-get=1": Get http://golang.org/x/crypto?go-get=1: dial tcp 216.239.37.1:80: i/o timeout

ProjectRoot name validation failed

首先使用shadowsocks代理, 但是终端不能用。 需要把socks5 代理转换成 http 代理，然后使用 http_proxy 环境变量, 这样间接实现命令行使用socks5 代理。

解决方案一：

使用polipo 来做代理转换器。

1. 安装polipo

brew install polipo

2. 代理转换
   执行如下命令，开启代理转换器，转换后的代理监听8123端口

polipo socksParentProxy=127.0.0.1:1080 proxyAddress=0.0.0.0

3. 通过转换代理执行命令
   执行如下命令，就通过8123的http代理访问golang.org

env http_proxy=http://127.0.0.1:8123 https_proxy=http://127.0.0.1:8123 dep ensure -v

解决方案二：

安装Proxifier

• 详情见终端使用 Shadowsocks 的代理方案：Proxifier

参考：

• https://blog.csdn.net/guyan0319/article/details/81588316
• https://studygolang.com/articles/16932
• http://16bing.com/2017/04/23/ss-proxifier

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