[Update] Implement an auto-updater mechanism for newer releases

[crypto-eddy]

Tasks

• 1. Find the right tool or library that works best for our packaged binaries and supports fairly well the 3 platforms if not at least 2 platforms among Windows, Linux, macOS.
• 2. Publish a sample release and update the pipeline to provide expected types of binaries by the updated tools.
• 3. Implement check for updates availability.
• 4. Communicate events of available updates from the Electron process to the renderer process.
• 5. Handle update events and procedural download of updates chunks.
• 6. Resolve the issue of hash mismatch after download binary events Cannot download differentially, fallback to full download: Error: sha512 checksum mismatch electron-userland/electron-builder#5940.
• 7. Prepare a test release which auto-updater feature flag : The goal is to investigate if a signed binary would behave as expected with the auto-updater
• 8. Make quit and restart after update install optional, provide an optional restart now button: Add optional "Restart Now" button after update download #573
• 9. QA test auto-updater on Windows : [Auto-Updater] QA : Windows auto updater not being triggered #577

[RainbowMiner]

Yes, please!

[crypto-eddy]

Issue 1

There was one blocking issue with the stable version of electron updater electron-userland/electron-builder#5940.

It seems to be detecting new versions well but when it has to replace the binary, the checksum match fails.

00:48:24.566 › Error: Error: sha512 checksum mismatch, expected Hq81Ata0vPJuzYeThT0w/m445aEUrhub9bXXGAkbx0komXkGNYHPWtzhN0dZKKKFlnGBcc0irfZ9ZeFezpj04A==, got GbsnNsI5HCS3kqSo99p2XTTtVT5aX3Lu1Gpk420fMEoxiveRpi+rnAHUh9+GqOnhgLev85Ntp8VJr017LjQHMw==
    at Object.newError (/Applications/Crypto.org Chain Desktop Wallet (Beta).app

[crypto-eddy]

Issue 2

Possible blank screen as shown above when adding auto-updater hooks

[crypto-eddy]

Issue 3

Related to issue 1 above, if we updater auto-updater to the latest version with fixes on hash mismatch we are likely going to run through a library incompatibility breaking change related to fs streams being used in later versions of the auto updater.

electron-userland/electron-builder#6000

[crypto-eddy]

Progress

Updates events can now be logged, listened and passed to the render process, [WIP]

dc5cc25

[crypto-eddy]

PR available now for task 1 to 4 : #559