使用gin搭建服务的时候，在开发环境修改代码，要关闭服务，再重新打开代码才能生效。

频繁修改再打开是一个很低效的事情。所以需要一个工具，在修改完代码之后可以热启动。

可以使用 air来完成。

安装

go install github.com/cosmtrek/air@latest

配置

air不会自动配置路径，需要我们添加

alias air='$(go env GOPATH)/bin/air'

然后添加一个air的配置文件

root = "."
testdata_dir = "testdata"
tmp_dir = "tmp"[build]args_bin = []bin = "./tmp/main"cmd = "go build -o ./tmp/main ."delay = 1000exclude_dir = ["assets", "tmp", "vendor", "testdata"]exclude_file = []exclude_regex = ["_test.go"]exclude_unchanged = falsefollow_symlink = falsefull_bin = ""include_dir = []include_ext = ["go", "tpl", "tmpl", "html"]kill_delay = "0s"log = "build-errors.log"send_interrupt = falsestop_on_error = true[color]app = ""build = "yellow"main = "magenta"runner = "green"watcher = "cyan"[log]time = false[misc]clean_on_exit = false[screen]clear_on_rebuild = false

执行命令

air

即可

修改bash zsh

vim ~/.zshrc 
# or we can 
# vim ~/.bash_profile# Add this in the file
alias air='$(go env GOPATH)/bin/air'

这样以后打开的新的终端都可以应用了