Air

☁️ Live reload for Go apps

Motivation

When I get started with developing websites in Go and gin framework, it's a pity that gin lacks live-reloading function. In fact, I tried fresh and it seems not much flexible, so I intended to rewrite it in a better way. Finally, Air's born. In addition, great thanks to pilu, no fresh, no air :)

Air is yet another live-reloading command line utility for Go applications in development. Just air in your project root directory, leave it alone, and focus on your code.

NOTE: This tool has nothing to do with hot-deploy for production.

Features

Colorful log output
Customize build or binary command
Support excluding subdirectories
Allow watching new directories after Air started
Better building process

Installation

Go

The classic way to install

go get -u github.com/cosmtrek/air

macOS

curl -fLo air https://git.io/darwin_air

Linux

curl -fLo air https://git.io/linux_air

Windows

curl -fLo air.exe https://git.io/windows_air

P.S. Great thanks mattn's PR for supporting Windows platform.

Docker way

Please pull this docker image cosmtrek/air.

docker run -it --rm \
    -w "<PROJECT>" \
    -e "air_wd=<PROJECT>" \
    -v $(pwd):<PROJECT> \
    -p <PORT>:<APP SERVER PORT> \
    cosmtrek/air
    -c <CONF>

For example, one of my project runs in docker:

docker run -it --rm \
    -w "/go/src/github.com/cosmtrek/hub" \
    -v $(pwd):/go/src/github.com/cosmtrek/hub \
    -p 9090:9090 \
    cosmtrek/air

Usage

For less typing, you could add alias air='~/.air' to your .bashrc or .zshrc.

First enter into your project

cd /path/to/your_project

The simplest usage is run

# firstly find `.air.conf` in current directory, if not found, use defaults
air -c .air.conf

While I prefer the second way

# 1. create a new file
touch .air.conf

# 2. paste `air.conf.example` into this file, and **modify it** to satisfy your needs.

# 3. run air with your config. If file name is `.air.conf`, just run `air`.
air

See the complete air_example.conf

Debug

air -d prints all logs.

Development

Please note that it requires Go 1.13+ since I use go mod to manage dependencies.

# 1. fork this project

# 2. clone it
mkdir -p $GOPATH/src/github.com/cosmtrek
cd $GOPATH/src/github.com/cosmtrek
git clone git@github.com:<YOUR USERNAME>/air.git

# 3. install dependencies
cd air
make ci

# 4. explore it and happy hacking!
make install

BTW: Pull requests are welcome~

Sponsor

License

GNU General Public License v3.0

swhite24/air

Air