looqs: Release notes

2022-06-29 - v0.4

This release makes several minor improvements and begins prebuilt binaries of looqs that (should) run on any recent Linux distribution.

General: Begin new, experimental distro-agnostic tarball containing prebuilt binaries and libs. See the README for more information.
GUI: In the "Previews" tab, allow filtering by file, to only show previews for a specific file.
GUI: Add "Show previews" context menu option to files in result (if available)
General: Fix build with libquazip 1.X
General: Properly report access errors as a failure during indexing
GUI: Add button to export a list of all paths that failed
General: Improve dir scan threading
CLI: Improve helptext
General: Add voidlinux build instructions

CHANGES:

GUI: Add settings tab to configure various settings
GUI: Don't render previews for results that do not originate from a content search. This was confusing.
GUI: Remove 'open config file' menu action
GUI: Highlight "words" that are actually numbers in preview texts
search: Search for "words" that are a number, e. g. 23. Previously, those were ignored due to a regression.
CLI: Minor cleanups.
sandbox: Improve preview generation sandbox further by restricting it more
sandbox: Fix case where activiation would fail during indexing in some cases on kernels without landlock.
Remove 'firstrun' setting

CHANGES:

Sandboxing: Add environment variable LOOQS_DISABLE_SANDBOXING to disable sandboxing. This is intended for troubleshooting
Sandboxing: Fix issue where activation failed on kernels without landlock

The first release comes with basic functionality. It's a start that can be considered useful to some degree.

looqs is still at an early stage and may exhibit some weirdness and contain bugs.

Tested architectures: amd64.

CHANGES:

CLI command "looqs" to add/update/delete and search
GUI: "looqs-gui" to search, render previews, and add files to index
General: Add multi-threaded indexing of all files (paths, mtime)
General: Generate sqlite based full-text search index for: .pdf,.odt,.ods, text files
General: Sandboxed content processing
GUI: Sandboxed IPC sub-process to render previews.
GUI: Add previews for pdf: Render the page the search keywords were found. Highlight the keywords when rendering the page.
GUI: Add previews for plaintext files: Extract snippets. Highlight the keywords when rendering the page.
General: Add basic filters for query.
GUI: Add icon. Special thanks to the following sources: https://www.svgrepo.com/svg/151751/magnifier-with-small-handle https://www.svgrepo.com/svg/52764/open-book

Thanks!
General: Documentation.
Add packages: Ubuntu 21.10, 22.04

Thanks to all those who provided feedback (and endured bugs) at various stages. You know who you are, thx!