vscode 安装go插件

由于vscode对go语言的支持：

 

The "gocode" command is not available. Use "go get -v github.com/mdempsky/gocode" to install.

但如果按照vscode的提示点击“安装”后，经过漫长等待，会迎来进一步提示：

 

gocode:
Error: Command failed: /usr/local/go/bin/go get -u -v github.com/mdempsky/gocode
github.com/mdempsky/gocode (download)
Fetching https://golang.org/x/tools/go/gcexportdata?go-get=1
https fetch failed: Get https://golang.org/x/tools/go/gcexportdata?go-get=1: dial tcp 216.239.37.1:443: i/o timeout
package golang.org/x/tools/go/gcexportdata: unrecognized import path "golang.org/x/tools/go/gcexportdata" (https fetch: Get https://golang.org/x/tools/go/gcexportdata?go-get=1: dial tcp 216.239.37.1:443: i/o timeout)

What's the fuuuuuuu!!!

必须说明我是在科学上网的前提下执行的安装命令，所以猜测不是网络问题，具体原因没深究，我参考了官方指导以及一篇博文解决的该问题，博客写得有点绕，我挑简单的总结一下。

解决方案

从官方文档中可以明确，VSCode依赖的几款工具完成不同功能：

名称	描述	链接
gocode	代码自动补全	https://github.com/mdempsky/gocode
go-outline	在当前文件中查找	https://github.com/ramya-rao-a/go-outline
go-symbols	在项目路径下查找	https://github.com/acroca/go-symbols
gopkgs	自动补全未导入包	https://github.com/uudashr/gopkgs
guru	查询所有引用	https://golang.org/x/tools/cmd/guru
gorename	重命名符号	https://golang.org/x/tools/cmd/gorename
goreturns	格式化代码	https://github.com/sqs/goreturns
godef	跳转到声明	https://github.com/rogpeppe/godef
godoc	鼠标悬浮时文档提示	https://golang.org/x/tools/cmd/godoc
golint	就是lint	https://golang.org/x/lint/golint
dlv	调试功能	https://github.com/derekparker/delve/tree/master/cmd/dlv
gomodifytags	修改结构体标签	https://github.com/fatih/gomodifytags
goplay	运行当前go文件	https://github.com/haya14busa/goplay/
impl	新建接口	https://github.com/josharian/impl
gotype-live	类型诊断	https://github.com/tylerb/gotype-live
gotests	单元测试	https://github.com/cweill/gotests/
go-langserver	语言服务	https://github.com/sourcegraph/go-langserver
filstruct	结构体成员默认值	https://github.com/davidrjenni/reftools/tree/master/cmd/fillstruct

以上的工具可以有选择地安装，但为了开发过程中不要出什么岔子，我一般选择全部安装，很不幸的是安装过程中80%的工具会出现timeout的提示。

安装步骤

为了统一每个人的开发环境，下文中GOPATH表示自己电脑go的安装路径，例如我的电脑默认安装路径为~/go，如果没有的话建议先执行命令export GOPATH=~/go，Windows用户...

1. 创建目录$GOPATH/src/golang.org/x，并切换到该目录

 

mkdir -p $GOPATH/src/golang.org/x/
cd $GOPATH/src/golang.org/x/

1. 克隆golang.org工具源码
   如果不克隆的话，go get -u -v golang.org/xxx肯定是timeout的，所以只能先把它们下载到本地src/golang.org/x/tools

 

git clone https://github.com/golang/tools.git
git clone https://github.com/golang/lint.git

1. 下载github源码
   按照go get -u -v命令，从GitHub上下载代码后还会fetch，我们很可能会在fetch https://golang.org/xxx的时候挂掉，原因你懂的。所以去掉-u选项，禁止从网络更新现有代码。

go get -u -v github.com/nsf/gocode
go get -u -v github.com/rogpeppe/godef
go get -u -v github.com/golang/lint/golint
go get -u -v github.com/lukehoban/go-find-references
go get -u -v github.com/lukehoban/go-outline
go get -u -v sourcegraph.com/sqs/goreturns
go get -u -v golang.org/x/tools/cmd/gorename
go get -u -v github.com/tpng/gopkgs
go get -u -v github.com/newhook/go-symbols
go get -v -u github.com/peterh/liner github.com/derekparker/delve/cmd/dlv

# 先从github下载依赖工具的源码，fetch提示timeout不要管
go get -v github.com/ramya-rao-a/go-outline
go get -v github.com/acroca/go-symbols
go get -v github.com/mdempsky/gocode
go get -v github.com/rogpeppe/godef
go get -v github.com/zmb3/gogetdoc
go get -v github.com/fatih/gomodifytags
go get -v sourcegraph.com/sqs/goreturns
go get -v github.com/cweill/gotests/...
go get -v github.com/josharian/impl
go get -v github.com/haya14busa/goplay/cmd/goplay
go get -v github.com/uudashr/gopkgs/cmd/gopkgs
go get -v github.com/davidrjenni/reftools/cmd/fillstruct
go get -v github.com/alecthomas/gometalinter

1. 安装工具

 

go install github.com/ramya-rao-a/go-outline
go install github.com/acroca/go-symbols
go install github.com/mdempsky/gocode
go install github.com/rogpeppe/godef
go install github.com/zmb3/gogetdoc
go install github.com/fatih/gomodifytags
go install sourcegraph.com/sqs/goreturns
go install github.com/cweill/gotests/...
go install github.com/josharian/impl
go install github.com/haya14busa/goplay/cmd/goplay
go install github.com/uudashr/gopkgs/cmd/gopkgs
go install github.com/davidrjenni/reftools/cmd/fillstruct
go install github.com/alecthomas/gometalinter
$GOPATH/bin/gometalinter --install
go install golang.org/x/tools/cmd/godoc
go install golang.org/x/lint/golint
go install golang.org/x/tools/cmd/gorename
go install golang.org/x/tools/cmd/goimports
go install golang.org/x/tools/cm