(Photo Credit: Friedemann Kleint)

In the next release of Dolphin, the search backend (when Baloo indexing is disabled) will be faster and support more file types, by using external projects ripgrep-all and ripgrep to do the search. Merge Request

What are ripgrep and ripgrep-all?

ripgrep is a fast text search tool that uses various optimizations including multi-threading (compared to grep and Dolphin's internal search backend which are single-threaded).

ripgrep-all, quote its homepage, is "ripgrep, but also search in PDFs, E-Books, Office documents, zip, tar.gz, etc.".

How to enable it

Install the ripgrep-all package from your distribution's package manager (which should also install ripgrep). Then Dolphin will automatically use it for content search, when Baloo is disabled.

If your distribution doesn't provide ripgrep-all, you can also try installing ripgrep. Then Dolphin will use it for content search, but without the additional file type support.

Limitations

• It only works in content search mode, and when Baloo content indexing is disabled. File name search still uses the internal backend.

• It only works in local directories. When searching in remote directories (e.g. Samba, ssh), the internal search backend is used. Although we can run ripgrep in remote directories through the kio-fuse plugin, testing shows it can be 3 times slower than the internal backend, so it's not used.

• It doesn't work on Windows. Although both ripgrep and ripgrep-all have releases for Windows, I personally don't have Windows experience to integrate them. Merge request to enable it on Windows is welcome.

Customization

You can change the command line with which Dolphin calls the external tools. Copy /usr/share/kio_filenamesearch/kio-filenamesearch-grep to ~/.local/share/kio_filenamesearch/, and modify the script there. The script contains comments on the calling convention between Dolphin and it, and explanations on the command line options.

One option you might want to remove is -j2. It limits the number of threads ripgrep (and ripgrep-all) uses to 2. Using more threads can make the search much slower in hard disks (HDD). I tried to detect HDD automatically, but it's not reliable, so I went with a conservative default. It's still faster than the internal backend, but if you have an SSD, you can remove the option to unlock the full speed of ripgrep.

You can also use a different external tool. (E.g. the silver search (ag). Or a full-text search engine other than Baloo) Just make sure it outputs paths separated by NUL. Usually a -0 option will do that.

More customization

You can even modify the script so that you can specify different external tools in the search string. For example, you can insert the following code before the original code that calls ripgrep-all:

...(line 1-33)
 --run)
 if test "$2" = "@git"; then
 exec sh -c 'git status -s -z|cut -c 4- -z'
 fi
...

Then if you search for "@git" in a git directory, it will show you changed files.

FAQ

But what if a malicious app creates ~/.local/share/kio_filenamesearch/kio-filenamesearch-grep that deletes all my files when I search?

If a malicious app can write to ~/.local/share/kio_filenamesearch/, it probably can just delete all files in you home directory, without involving Dolphin at all. A script executed by Dolphin doesn't have more power than a script executed by the malicious app itself.

Also, there are already a lot of places in your home directory that a malicious app can create a script in, and it will be executed later without you noticing. E.g., ~/.bashrc, ~/.config/systemd/user, ~/.config/autostart, to name a few.

The threat is real, but I believe the solution is to prevent apps from writing to arbitrary places in your home directory without your consent. If your apps are sandboxed (e.g. via Flatpak) so they can't write to ~/.config or ~/.local by default, and you only use trusted apps like Dolphin and Kate to manage files in these places (so you trust them to not modify files behind your back), then the scenario in the question is unlikely to happen.

Future works

There are quite a lot to improve in Dolphin's search (when not using Baloo). The content search should also search in file names. The search string is currently interpreted as a regular expression, but a fuzzy match or shell globbing seems to be a more sensible default (probably with regexp as an option). Hopefully future works will address these issues.

This being my first post on the KDE sphere (or any other sphere), it was supposed to be just a touch of contact with the world of blogging. But since time pass by in a blast, let's just summarize how I lived my third one in-person Akademy 2024.

Würzbug. Back to Germany

This year's Akademy happily got me back to Germany, which has become like a second home and a place I like to visit at least once a year (yeah, I missed the Dürüms).

I had bought the D-Ticket, which allowed my to board any public transport immaginable (well, except for ICE trains, but I haven't heard much good about them either) for bare 49€. It brought me some memories back as a student in Dresden, enjoying the same perks with the Semesterticket, just on a regional scope. Thanks to Itinerary and its route planner I was able to make it to Würzburg even an hour earlier than anticipated (less 20min train delay which I've heard it's currently quite a good metric).

After having my hotel booking cancelled last minute due to needed repair works, I had booked an appartment because the hotel prices were a bit over the top. I was really lucky to find that just around the corner I had a bus stop to go to the venue, and also Andy Betts and Richard Wagner as ilustrious neighbors. And one of the best rated Dönner places in the city. Very lucky indeed!

The Talks

It's hard to make a better summary of the Talks days that our very own Promo Team's report, which I agree with on many points.

What I particulary felt on these Akademy's talks was a high focus into the future. Some words were thematically present along most of the talks: story, product, and impact.

The story we as the KDE community want to tell is not just a bunch of code packages that live in an ethereal world to be grabbed by a few enthusiasts or distros, but a full useful product for the end users, an inviting environment for fellow developers, and a reliable asset for manufactures on their very concrete hardware.

There were many reveals and surprises to achieve this goal. Projects that had been incubating for some time, were now made public on this Akademy: the KDE OS Codename Banana by Harald Sitter, the Next Project and design system by Andy Betts and the Union theme engine by Arjen Hiemstra.

Some talks addressed the social and environmental impact of the technology we create. The one that specially got to me was the small story Nicole Teal told at her lightning talk. How a group of kids gave many "older" PCs a new life installing KDE, while learning new skills and making community, felt really true and a spur to continue contributing to FOSS. It really matters.

From the technical talks, I enjoyed "What is color, anyway" by Xaver Hugl, and unfortunately had to miss some other ones (Python and Rust integration with Qt). This is the hardest part, where you cannot just .clone() yourself and attend to two talks at the same time. Maybe I would have learnt to do that if I had attended the Rust presentation? (yeah, sorry bad Rust dad joke)

It was also on Sunday when Aniqa and Carl took me by surprise to agains my will happily answer to a small video interview. Just joking, it was fun. Just preemptively preparing myself for when the final video comes out and I can see what words I did babble :D.

The BoFs

After a very intense weekend of talks and the social event and post-event on Sunday, I took the Monday's morning off to have some rest. In the evening, Andy and Manuel showed me a bit more about the design system they're using and the icon exporter Manuel has been developing to streamline the process between designers and the final product. Amazing stuff!

I also started a draft of this very blog post, which wasn't much successful as you can imagine by its final release date.

The big BoF day for me was mostly Tuesday, where I focussed on the Plasma and the VDG ones, though I missed those on KWin's roadmap and window tiling, due to competing schedules. During the Plasma BoF, we could experiment in real time, the step-by-step process of realeasing the Plasma 6.1.5 version, thanks to Jonathan, our Plasma release manager.

Finally, on Thursday I got to enjoy the brand new Sticker BoF. Besides me not having any stickers on my own to share, and being mostly minimalistic when it comes to decoration, I had a great time and ended up sticking my laptop up and about, including an very limited unit of the Sticker BoF's sticker. Thanks Kieryn for organizing it. Of course, Carl won the sticker's award 😄.

On a more personal level, I regret a bit not having participated more on some of the BOFs. Most of my KDE's contributions this summer have been improvements on very niche aspects: the Weather widget and the tool to preview keyboard layouts (tastenbrett), so I felt a bit "out of the loop" on the more general and pressing matters in Plasma.

The Socials

Where the Akademy really shines is in putting together some hundreds of amazing people with some common interests, that in the end happen to make the best software products and computing ecosystem out there.

It is a real warp of space and time. On the Welcome Event I got to meet Eva Brucherseifer, one of the attendants and founders of the very first Akademys, and also recent joiners to the community I only knew via chat or MR interactions.

When the Biergarten that was booked for the Sunday Social Event did cancel due to a storm warning, I could immediately check two things:

• that the Weather Widget did correctly report the Warnung vor starkem Gewitter

  

• and that the local organizing team went the extra mile to make the Akademy a success, even against the elements. Beer, pizzas and good people was all required to have an enjoyable evening.

Finally I was really happy to meet again with friends from the previous Akademys and the Plasma Sprint in 2023, sharing opinions on widespread topics, suchs as immovable OSes, ingenuous ways to open a beer bottle, keyboard input methods, or the torture and punishment customs of German cities in medieval times.

Thanks to the organizing team, the speakers, the attendants, the patrons and the whole KDE Community which made possible yet another amazing Akademy!

Kraft (Github) is the desktop app making it easy to create offers and invoices quickly and beautifully in small companies. It is targetted to the free desktop and runs on Linux.

This is the release announcement of the new Kraft version 1.2.2. This is a small service release that fixes a few bugs and CI issues.

Right after this release, the branch with significant changes for Kraft 2.0 will be merged to master. These changes will make Kraft ready for sharing documents across private file clouds and with that enable use cases for distributed use via internet, along with other significant feature updates.

Details about the next big release with version number 2.0 can be read on the Github Discussion page.

Any feedback and contribution is highly appreciated.

The End is here!

The long journey of GSoC (which got streched into 16 weeks) is nearing to an end. And in this blog, I will share a few of the things I have done, and some of the things I have left to do. Let’s start with the main works.

Snap KCM! It’s here!

I have finally succeeded to create a KCM for snaps. This is written using C++, Qt (Qml), Kirigami, Snapd-Glib Api. The flow is something like this

Programmes like Season of KDE (SoK) and Google Summer of Code (GSoC) provide a great opportunity for young talent to become part of the open source community and contribute to open source projects. LabPlot, and KDE in general, has a long history and experience in managing GSoC projects and has benefited from various contributions. In recent years we have taken a break from GSoC, mostly due to personal reasons and time constraints. After a successful SoK 2024 programme this year we decided to participate in GSoC2024 again.

This year we had Israel Gladima and Kuntal Bar who spent 3 months with us working on quite challenging projects aimed at addressing two major feature gaps in LabPlot, namely Python scripting and visualisation of 3D data. These two development topics had already been the subject of several discussions and even initial implementations on our part, but we never managed to finalise them and make these features available to our users. Based on the already available results of the last years’ work, we decided to re-initiate these projects and work on them during GSoC2024. Despite the technical challenges and complexity of these projects, Kuntal and Israel did a very good job this summer and delivered amazing results.

We refer you to their blog posts here and here for more details of the work that has been done. In the coming weeks and months we’ll continue to work to finalise these features and get them ready for the first release. The LabPlot team would like to thank Israel and Kuntal and we’re looking forward to your contributions in the future!

Translating a Qt application, can be a daunting task. This is an overview from Qt 5 to Qt 6 and what new functionality Qt 6.7 brings.

Continue reading Translating Qt Applications at basysKom GmbH.

Tellico 4.0.1 is available, with a couple bug fixes.

Improvements and Bug Fixes

• Fixed encoding for HTML export in Qt6 (Bug 493180).
• Fixed compilation with Qt6/msvc.
• Added a menu item for changing the application language.

After having participated to both Qt Contributor Summit and Akademy, I ended up going to a few more conferences in September.

Nextcloud Conference

I went to Nextcloud Conference just after going back from Akademy. Unfortunately I was quite tired from Akademy and Qt Contributor Summit and I only stayed Saturday morning. Still it was great to meet some old colleagues there.

Matrix Conference

The Matrix Conference happened the weekend after the Nextcloud conference. This was the first Matrix Conference and a gathering of all types of actors involved in Matrix. From the grassroots community to companies deploying Matrix based solutions to their customers. The NeoChat team was there and we were super productive into bringing back the Android version, thanks to the help of Volker Krause. This resulted in many patches in NeoChat itself but also one patch in Kirigami.

Special mention to the food and coffee offered at the conference, which was always excellent and either vegan or vegetarian. Outside of the venue, food was also execellent with a lot of middle eastern food choice.

Here some photos of the event and the food:

Linux Days Dornbirn

It was my second time going to the Linux Days in Dornbirn and while the weather wasn’t as welcoming as last time, the local Linux community was again super welcoming!

During the event, I did a talk in German about Plasma 6. This was my first time doing a talk in German and I hope I did okay. I also hosted a KDE stand with Simon Österle, who offered his help with the stand. His help has been invaluable to me, so huge thanks to him.

Like last year, after the conference, all helpers, presenters and stand holders went to a local restaurent to enjoy Käsespätzle. It was again delicious.

Here some photos of the event and the food: