Matt Sijbers
f311429bc2
Adds Services/SelfUpdateService.cs implementing the Chrome-style pattern:
1. Download new exe to "<current>.new"
2. Rename running exe to "<current>.old" (NTFS allows MoveFile on a
running exe -- it resolves processes by handle, not by path)
3. Rename ".new" to canonical path
4. Spawn the new exe with our argv
5. Environment.Exit(0)
6. Next start of the new exe runs CleanupAfterUpdate() in App.OFIC()
which deletes the leftover ".old"
UI: the existing "Download" banner button is now "Install update". Click
runs the self-update flow with a percent/MB progress label; any failure
(network, AV write-block, dir not writable) falls back to opening the
URL in the browser so users always have a path forward.
Bumps to 0.4.7. Also fixes a stale fallback URL that pointed at
sijbers.uk/pack/... -- now correctly points at bns.sijbers.uk/launcher/.
Brass & Sigil
Self-hosted Minecraft modpack distribution + administration system. Three components, one repo:
brass-and-sigil/
├── launcher/ ← Avalonia desktop client (Windows .NET 8)
│ Auths with Microsoft, syncs the modpack, launches the game.
├── server/ ← brass-sigil-server daemon (Linux .NET 8)
│ Wraps the MC subprocess, exposes the admin web panel,
│ syncs mods, runs backups + BlueMap, handles whitelist.
├── pack/ ← Modpack content
│ ├── pack.lock.json Source of truth for mod versions / URLs / hashes
│ ├── tweaks/ Hand-written data-only tweak source
│ └── overrides/ Build output / hand-placed local files (gitignored)
├── scripts/ ← Build + deploy entry points (run from repo root)
│ ├── Update-Pack.ps1 Refresh pack.lock.json from Modrinth/CurseForge
│ ├── Check-Updates.ps1 Non-mutating "what's new?" report
│ ├── Build-Tweaks.ps1 Compile tweaks/ into pack/overrides/mods/*.jar
│ ├── Build-Pack.ps1 Generate manifest.json from the lockfile
│ └── Deploy-Brass.ps1 One-shot build + deploy everything
└── docs/ ← Operational notes, deploy runbook, schema docs
Quick start
# Pull dependencies, copy and edit the deploy profile
git clone <remote> brass-and-sigil
cd brass-and-sigil
Copy-Item scripts\deploy.config.template.ps1 scripts\deploy.config.ps1
notepad scripts\deploy.config.ps1 # fill in deploy share, SSH host, etc.
# Build + deploy everything in one go
.\scripts\Deploy-Brass.ps1
deploy.config.ps1 is gitignored -- local values never get committed.
Component reference
| Component | What it does | Technology |
|---|---|---|
launcher/ |
Friend-distributed client. Auths with Microsoft via WebView2 + XboxAuthNet, downloads mods, launches Minecraft. Single self-contained .exe published from publish/. |
Avalonia 12 + CmlLib.Core |
server/ |
Daemon running alongside the MC process on Linux. Hosts a Kestrel web panel for admin (cookie-auth, rate-limited), bridges RCON, runs scheduled backups + BlueMap renders, handles whitelist requests. | ASP.NET Core minimal APIs |
pack/ |
Lockfile-driven modpack content. pack.lock.json resolves mod slug → URL+SHA-1; Build-Pack.ps1 walks it and produces manifest.json for the launcher and the server-tool to consume. |
PowerShell tooling |
Workflow
- Bump mod versions:
.\scripts\Update-Pack.ps1(queries Modrinth + manual CurseForge entries). - Sanity-check:
.\scripts\Check-Updates.ps1for a non-mutating availability report. - Edit tweaks under
pack/tweaks/<name>/if you're changing recipes / loot / etc. - Deploy:
.\scripts\Deploy-Brass.ps1-- builds launcher + server, regenerates manifest, mirrors everything to the deploy share, scp's the server binary.
Secrets / config files
| File | Tracked? | Notes |
|---|---|---|
launcher/launcher-config.template.json |
✓ | Empty placeholders, public-safe |
launcher/launcher-config.json |
✗ | Local override; merged into the published exe at build time if present |
server/deploy/server-config.example.json |
✓ | Template; rename to server-config.json on the server with real values |
server/deploy/server-config.json |
✗ | Production config; lives on the server only |
scripts/deploy.config.ps1 |
✗ | Local deploy profile (paths, SSH host, share location) |
License
See LICENSE.