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feat(devshell): stream quickshell warnings and errors in nix develop

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qs-log follows the working-tree instance's log filtered to WARN|ERROR (-a for
everything), and the shellHook starts it in the background once qs-dev is up,
taking it down again in the exit trap alongside qs-prod. A binding loop or a
failed binding is a WARN, and easy to miss when it scrolls past unwatched.

It starts at the end of the log rather than replaying the backlog, and
re-attaches in a loop: `qs log -f` ends when the instance it attached to exits,
and the dev shell outlives individual instances.

Also corrects the hot-reload note added in 7268221, which was wrong on both
counts. Tested against the running shell: `touch` never reloads (mtime is not a
content change) and inode-replacing edits like `sed -i` are picked up fine. The
reliable check is whether `qs log` shows a "Reloading configuration..." line.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HEtXvseVb5gwAtKNhFx2PU
This commit is contained in:
darman
2026-08-29 03:25:26 +02:00
co-authored by Claude Opus 5
parent 7eb7b948e8
commit 15698d3a78
2 changed files with 37 additions and 3 deletions
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dotfiles/quickshell/CLAUDE.md
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@@ -14,7 +14,7 @@ qs -p . # run this directory explicitly regardless of symlink
qs -n # exit immediately if another instance is already running (use to avoid duplicate shells while iterating)
```
Quickshell hot-reloads QML on file save when already running, so for most edits just save and check the running instance rather than restarting `qs`. The watcher follows the file's inode, so an edit that REPLACES the file (`perl -i`, `sed -i`, `mv`) silently detaches it — the shell keeps rendering the previous config and `qs log` still says "Configuration Loaded" for the last real reload. Edit in place, or `touch` a still-watched file to force a full reload. There is no separate build/lint/test tooling in this repo — verification is visual/behavioral via the running shell. `qmlls` (QML language server) is configured via `.qmlls.ini` for editor diagnostics.
Quickshell hot-reloads QML on file save when already running, so for most edits just save and check the running instance rather than restarting `qs`. It watches file CONTENT: `touch` alone never reloads (mtime is not a change), while any real edit does, including inode-replacing ones (`sed -i`, `perl -i`). A save that is not picked up leaves the shell rendering the previous config with no error — `qs log` shows a `Reloading configuration...` line for every save it saw, so that is the check. There is no separate build/lint/test tooling in this repo — verification is visual/behavioral via the running shell. `qmlls` (QML language server) is configured via `.qmlls.ini` for editor diagnostics.
## Architecture