Gohazel

A versions update server writen in Golang. Supports updating an Electron application.

• Private repo - Response your proxy server download url. Cache release information and assets by Github api.
• Public repo - Response Github public download url directly. Alse support proxy.

Contents

• Difference from Hazel
• URL Pathes
• Assets Filename
• Config File
• Run with Container
  • Docker
  • Docker Compose

Difference from Hazel

The project is inspired by Hazel. Hazel is very complicated to deploy, because it is coded in NodeJS.

Gohazel not only translated hazel to Golang, but also made some ajustments and optimizations.

• Cache assets into your server disk for private repo.
• Separate user requests and cache logic, for fast response.
• Cache latest release data, in case there is no any information for serving while fetching failed from Github at startup.

URL Pathes

/

Overview repo and cached release information.

/download

Responses download url ("Location") for detected platform which parsed from user agent.

$ curl http://localhost:8400/download

• Github directly

{"Location":"https://github.com/atom/atom/releases/download/v1.52.0/AtomSetup.exe"}

• Server proxy

{"Location":"http://localhost:8400/assets/atom/atom/v1.52.0/AtomSetup.exe"}

/download/:platform

Responses download url for specified platform in uri.

$ curl http://localhost:8400/download/darwin

• Github directly

{"Location":"https://github.com/atom/atom/releases/download/v1.52.0/atom-mac.zip"}

• Server proxy

{"Location":"http://localhost:8400/assets/atom/atom/v1.52.0/atom-mac.zip"}

/update/:platform/:version

Check update info

$ curl http://localhost:8400/update/win/v0.0.1
{"name":"v1.52.0","notes":"## Notable Changes...","pub_data":"2020-10-13T14:11:00Z","url":"http://localhost:8400/download/exe?update=true"}

/update/win32/:version/RELEASES

For Squirrel Windows

Assets Filename

Supporting patterns: *.exe,*.dmg, *.rpm, *.deb, *.AppImage, *mac*.zip, *darwin*.zip

References release of atom: https://github.com/atom/atom/releases

Command Flags

Usage: gohazel [options]
Server Options:
    -addr             Server listen address.
    -base_url         The server base URL.
    -debug            Open log debug level.
    -cache_dir        Cache files store in.
    -proxy_download   Proxy assets download with the server.
    -github_owner     Gihtub owner name.
    -github_repo      Github repository name.
    -github_token     Github api token for private repo.
    -config           Or specify a YAML configuration file.

Or Config File

config.yml

bind: ":8400"
debug: false
debugGin: false
baseURL: http://localhost:8400
cacheDir: /assets
proxyDownload: false
github:
  owner: atom
  repo: atom
  token:
  pre: false

Run with Container

Docker Repository: panjiang/gohazel

• Store cache files in /data/gohazel/assets

Docker

docker run -d --rm --name gohazel \
        -v /data/gohazel/config.yml:/config.yml\
		-v /data/gohazel/assets:/assets \
		-p 8400:8400 \
		panjiang/gohazel

Docker Compose

docker-compose.yml

version: "3.7"
services:
  gohazel:
    container_name: gohazel
    image: panjiang/gohazel:latest
    ports:
      - "8400:8400"
    volumes:
      - /data/gohazel/assets:/assets
    command:
      - /gohazel
      - -addr=:8400
      - -base_url=http://localhost:8400
      - -cache_dir=/assets
      - -proxy_download=false
      - -github_owner=atom
      - -github_repo=atom
      - -github_token=

$ docker-compose up -d