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launcher: scan desktop files directly, keep state in XDG_STATE_HOME

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The desktop-entry cache lived in $XDG_CACHE_HOME/wldash/desktop.json.
On an NFS-shared home that is a remote read and write on every start
(unless the session happens to export a machine-local XDG_CACHE_HOME),
and it went stale whenever a package was installed until someone ran
--desktop-refresh. Scanning the applications directories takes a few
milliseconds over local /usr/share and already happened on a background
thread, so the cache bought nothing: drop it, along with simd-json and
the serde derives on Desktop. --desktop-refresh stays as a no-op so old
key bindings keep working.

Calculator history and the prompt saved on Escape are state, not cache:
they move to $XDG_STATE_HOME/wldash (~/.local/state), written only on
Enter/Escape, and the old cache location is still read as a fallback.

With the serde derives gone, two Desktop fields were unused; use them:
Type=Link entries now open their URL with xdg-open, and Terminal=true
entries run under $TERMINAL -e when it is set.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
This commit is contained in:
Bendik Aagaard Lynghaug
2026-10-03 09:33:12 +00:00
co-authored by Claude Fable 5.1
parent 03a3c681b0
commit 9953865128
8 changed files with 82 additions and 272 deletions
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CHANGELOG.md
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# Changelog
## Unreleased
- No more desktop-file cache: wldash scanned `~/.cache/wldash/desktop.json` (on NFS for shared homes, and stale after every package install) and needed a manual `--desktop-refresh`. Desktop files are now scanned on a background thread at every start, a few milliseconds over local `/usr/share`. `--desktop-refresh` is a no-op kept for key bindings; `simd-json` is gone.
- Calculator history and the Escape-saved prompt moved from `$XDG_CACHE_HOME/wldash` to `$XDG_STATE_HOME/wldash` (`~/.local/state`), where small roaming state belongs; old files are still read.
- Launcher: `Type=Link` entries open their URL with `xdg-open`; `Terminal=true` entries run inside `$TERMINAL -e` when that variable is set.
## 0.4.0 (2026-10-03)
First release of the project.uhhm.no fork, packaged for the `[uhhm]` Arch registry. Numbering: upstream's old code base was tagged up to v0.3.0 and the rewrite called itself 0.2.0; this fork continues above both so pacman sees a monotonic version.