ddidderr 9d14e63613 fix: harden application log viewer
Add an Application Logs window backed by a bounded persistent main log file.
The viewer loads history from lanspread.log, subscribes to live INFO/WARN/ERROR
log events, supports filtering/copy/pause controls, and keeps the menu/window
routing separate from the unpack log viewer.

The backend sink now owns serialized access to the log file. History reads and
append-time trimming use the same sink lock, so opening the logs window cannot
race with a concurrent write and rewrite away a freshly appended line. The sink
also keeps a persistent file handle instead of reopening the file for each
captured event.

Live log events carry sink-local sequence ids. The frontend uses the history
watermark plus returned history line counts to suppress live events that were
already included in the history response, while preserving buffered rows that
were trimmed out of the history file. Auto-scroll now follows the last visible
row identity, so it continues following after the in-memory cap keeps the row
count stable.

No timestamp code change was needed. On the Linux dev host, a temporary probe
showed time::OffsetDateTime::now_local() returning +02:00 while UTC was +00:00,
matching the host CEST offset.

Test Plan:
- just fmt
- just frontend-test
- just test
- just clippy
- just build
- git diff --cached --check
- temporary Linux probe of OffsetDateTime::now_local() showed local +02:00

Refs: none
2026-06-07 18:59:05 +02:00
2026-06-07 18:59:05 +02:00
2026-05-17 07:54:12 +02:00
2026-06-07 18:59:05 +02:00
2026-06-07 18:59:05 +02:00
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2026-05-18 16:19:27 +02:00
2026-06-07 18:59:05 +02:00

lanspread

Peer-to-peer game library sharing for LAN parties. Peers discover each other on the local network via mDNS, exchange library metadata over QUIC, and let users browse and download games from each other. Ships as a Tauri desktop app.

Build / install

Install Rust, Deno, and just first, then bootstrap the project:

just setup

That installs the Tauri CLI with cargo install tauri-cli and installs the Deno/npm dependencies from crates/lanspread-tauri-deno-ts.

Run the desktop app in development mode:

just run

Build without bundling:

just build

Create production bundles:

just bundle

Important just commands

  • just setup - install the Tauri CLI and frontend dependencies.
  • just run - run the Tauri app in dev mode.
  • just build - build the app without bundling.
  • just bundle - create production bundles.
  • just fmt - format Rust, TOML, and the justfile.
  • just clippy - lint the Rust workspace.
  • just test - run workspace tests.
  • just frontend-test - run frontend tests.
  • just peer-cli-build - build the JSONL peer test harness.
  • just peer-cli-image - build the peer harness Docker image.
  • just peer-cli-run NAME - run one peer harness container.
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