Flashpoint Ultimate Updater

Flashpoint Ultimate Updater is designed to install extremely large numbers of immutable files from a remote server. Built on the back of the grab library.

Features:

• Resumable install state
• Speed limitter
• Pause and start downloader
• Scan and repair existing files
• Resume partial file downloads
• Install information fetched from remote server
• Upgrade existing install to new version
• Force upgrade when version no longer available on remote server

Setting up your remote server

1. Install python and install indexer dependencies

python -m pip install -r requirements.txt

2. Create an index for each install version you want to serve. Save the resulting sqlite file to somewhere accessible on your webserver you wish to keep the updater metadata.

• directory_to_scan - Directory of static files to index
• version_name - Version name to show in the updater
• serve_url - URL to where the directory of static files will be available on

python ./index.py <directory_to_scan> <version_name> <serve_url> <output.sqlite>

3. Create the metadata file that is fetched by the updater. Save to meta.json somewhere accessible online.

• current - Version name of the current version. Must match version_name from index above
• path - URL to the current sqlite file.
• available - List of available versions still being hosted, same format as current. If any are removed, users will be forced to upgrade to the current version.

{
  "current": "Release 2.0",
  "path": "https://example.com/updater-data/release-2.0.sqlite",
  "available": [
    "Release 1.0",
    "Release 2.0"
  ]
}

4. Edit the built in config.json to point to the meta.json file and compile your version. Placing config.json manually next to any compiled executable will override this.

{
  "meta_url": "https://example.com/updater-data/meta.json"
}

Keep reading on to Building to create an updater with the new config.json

Building

1. Bundle the config json

fyne bundle -o bundle.go config.json

2. Package for desired operation system and set the icon

fyne package -os <windows/linux/darwin> -icon icon.png

Ta-da, there's a new executable in the folder!