golang之git clone

Install Go1.6 from Source on CentOS 7 in China

1. If there's old version of Go installed, unset $GOPATH, $GOROOT

2. Make sure Git is installed.

   • Configure Git
     • git config --global user.email "email-for-github"
     • git config --global user.name "user name"
   • New SSH Key and Add Public Key to Github Account
     • ssh-keygen -t rsa -b 2048
     • fdipzone@ubuntu:~$ ssh-keygen -t rsa Generating public/private rsa key pair.
     • Enter file in which to save the key (/home/fdipzone/.ssh/id_rsa): 这里输入要生成的文件名
     • Enter passphrase (empty for no passphrase): 这里输入密码
     • Enter same passphrase again: 这里重复输入密码
     • Your identification has been saved in /home/fdipzone/.ssh/id_rsa. Your public key has been saved in /home/fdipzone/.ssh/id_rsa.pub. The key fingerprint is: f2:76:c3:6b:26:10:14:fc:43:e0:0c:4d:51:c9:a2:b0 fdipzone@ubuntu The key's randomart image is: +--[ RSA 2048]----+ | .+=*.. | | . += + | | o oo+ | | E . . o | | ..S. | | .o . | | .o + | | ...oo | | +. | +-----------------+

     • fdipzone@ubuntu:~$ ls -lt ~/.ssh
       总用量 12
       -rw------- 1 fdipzone fdipzone 1679 2015-08-07 00:28 id_rsa
       -rw-r--r-- 1 fdipzone fdipzone  397 2015-08-07 00:28 id_rsa.pub

     • https://github.com/settings/keys 设置 New Keys；（拷贝id_rsa.pub所有内容）
     • Copy the public key in ~/.ssh/id_rsa.pub and go to github SSH settings to add new SSH key.

3. Install gcc and glibc-devel

• sudo yum install gcc glibc-devel

1. Build Go1.4 from source

• cd ~/
• git clone [email protected]:golang/go.git
• cd go
• git checkout -b 1.4.3 go1.4.3
• cd src
• ./all.bash

1. Copy ~/go to $GOROOT_BOOTSTRAP(It's ~/go1.4 by default)`

• cp ~/go ~/go1.4 -rf

1. Build Go1.6 from source

• cd ~/go
• git clean -dfx
• git checkout -b 1.6 go1.6
• cd src
• ./all.bash (默认当前环境的参数，如linux/amd64)
• 但是如果编译需要linux／mipsle，此时不需要瞎搞，等待设置完环境变量后再搞；

1. Set $GOPATH and add Go binary path to $PATH

• sudo vi /etc/profile

      # Golang Env
      export PATH=$PATH:/home/xx/go/bin
      export GOPATH=/home/xx/go-projects
  

1. Reboot and test

• sudo reboot

• go version

• go version go1.6 linux/amd64

• 2.交叉编译：（https://blog.csdn.net/QQ531456898/article/details/80095707）

• 命令： env GOOS=linux GOARCH=mipsle GOMIPS=softfloat go build -ldflags="-s -w" main.go