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feat(perf): live runtime logs tab in Performance Probe (#946)

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* feat(perf): live runtime logs tab in Performance Probe

Add a Logs tab that streams the backend runtime log ring buffer in-app, so the
stdout/stderr console (unreachable on Windows without exporting) can be read
live. The buffer now tracks a monotonic seq; a new tail_runtime_logs command
returns lines incrementally and get_logging_mode reports the current depth.

The tab has a depth switch (off/normal/debug) mirroring app settings, a line cap
(500-5000), pause/clear, auto-follow, and an ordered comma-separated word filter
where a plain word includes and a -word excludes, applied left to right as
layers (sequence matters).

* docs(changelog): note Performance Probe logs tab (PR #946)

Add CHANGELOG entry and credits line for the live runtime logs tab.

* fix(perf): pin log view position when scrolled up

Auto-scroll keeps the logs tab at the tail, but once the user scrolls up the
view now stays put — the previously-topmost line is re-pinned each tick while
the log keeps appending below for further scrolling. History under the viewport
is no longer trimmed while scrolled up (kept up to the ring-buffer ceiling); the
cap is re-applied when following resumes. Buffer overflow is shown in the status
line instead of an injected marker row.

* fix(perf): scope logs tab to its own internal scroll

The whole probe body scrolled (controls + filter + log) because the log
container sized via height:100%, which WebKitGTK does not resolve against the
flex body. Make the body a flex column with hidden overflow on the Logs tab and
let the log view flex-fill, so depth/keep/pause/clear and the filter stay fixed
while only the log lines scroll.
This commit is contained in:
cucadmuh
2026-06-02 11:40:36 +03:00
committed by GitHub
parent c6df05e576
commit 975bb6d9af
12 changed files with 666 additions and 17 deletions
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CHANGELOG.md
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@@ -217,6 +217,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
* **Ghost badge** on browse routes when scope is cleared — one click restores page-only mode; query text is preserved.
* Album browse text search uses title-only FTS in the local index; Tracks hides discovery chrome while searching; session stash restores query and scroll after back from detail.
### Performance Probe — live runtime logs tab
**By [@cucadmuh](https://github.com/cucadmuh), PR [#946](https://github.com/Psychotoxical/psysonic/pull/946)**
* New **Logs** tab streams the backend runtime log buffer live inside the app, so the stdout/stderr console — unreachable on Windows without exporting a file — can be read online. The buffer tags each line with a monotonic seq and a new `tail_runtime_logs` command tails it incrementally.
* Includes an off/normal/debug **depth switch** (mirrors app Settings), a 500–5000 **line cap**, pause/clear, auto-follow, and an ordered comma-separated **word filter** where a plain word includes and `-word` excludes, applied left to right as layers (sequence matters).
## Changed