TIOJ 3.0.0: The Contest Update

This version introduces relatively major features and improvements, mostly focused on contest-related features.

The judge client should be updated to v2.0.0 before using this version.

New Features

• Single Contest website: setup a standalone website for any given contest by simply reverse-proxying a URL
  • See Wiki for more details
• Add contest registration & simple contest user generation
  • The old user whitelist feature is removed and automatically migrated by making the contest registration-required and adding matched users to registered users
• Support new IOI-style scoring (union by subtasks)
• Brand new contest dashboard
  • Dashboard history: view past rankings at any time during the contest
  • Independent dashboard visibility settings
  • Automatic dashboard refresh using ActionCable
• Allow submitting code by uploading a file
• Allow raw code download in the submission page
• Allow specifying additional arguments for special judge compilation (#25)

Enhancements

• Upgrade outdated JavaScripts & cleanup unused assets
  • If using Git, untracked files under public/ can be removed after pulling this version
• Migrate to esbuild for better JavaScript version management
• Limit motto display size to prevent clobbered TopCoder or Ranklist
• Store subtask results in database for better performance

Bug Fixes

• Fix broken avatar generation
  • Some users might not have an avatar because of this bug; run rails avatar:generate_missing to fix it
• Fix code line numbers slightly off-aligned
• Fix checkbox UI
• Fix problem numbering in contests with more than 26 problems