Public transport strikes in Rome are so frequent that it s hard to remember when they are. I wrote a Gnome Shell extension to help remind me when there s one either coming up or in progress. Find it on extensions.gnome.org. It gets its data from another little service I just made.

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A Roma gli scioperi dei mezzi pubblici sono cos frequenti che spesso facile dimenticarsi quando ci sono. Ho scritto un estensione per Gnome Shell per avvisare quando c o si avvicina uno sciopero dell Atac. La puoi trovare su extensions.gnome.org. Funziona grazie ad un altro piccolo servizio che ho creato.

My network blocks SIP on 3G, so when I start using its 3G service after leaving a wireless network my N900 goes absolutely crazy about not being to connect. Although this is a specific annoyance I have, it's a general problem with loads of similar cases, such as "I only want my work jabber/skype/MSN/etc. account enabled when I'm at work". So, I wrote a small daemon and a fun UI to make this easy. It's actually really simple: once you configure which connections accounts should listen for, it uses libconic to listen for connect/disconnect events and enables and disables accounts as appropriate. You should also be able to override its actions temporarily without it clobbering your setting.
A sneaky peek at the UI. See if you can guess where I've been visiting recently. I think the UI is pretty easy to use, and should cover most use cases. I just uploaded it to extras-devel. It's called Automatic Connections.

Recently, I've been working on a file transfer app for the N900. It's called monorail and I uploaded it to extras-devel last night, so you can try it out right now. I implemented an OssoABookContactView with support for filtering on Contact Capabilities (or a draft of it, at least) as old-style caps aren't great. This gives a nice list of address book contacts who have at least one account that should support receiving file transfers. It would be nice if these extra caps could go into the address book which is where they belong, but it won't. If someone would find this widget useful, I'll clean up the code and maybe throw it in its own library.
Choose one of the accounts which support file transfer. I also started to implement a sharing plugin, but it turns out it's poorly documented and appears to be impossible to do anything useful for my use-case, like popping up a dialog when the user taps "Share". The example isn't very exemplary, but does contain some amusing code. This sharing plugin is only half-written and impossible to debug. If anyone has any pointers on writing these plugins, I would appreciate them. It's a shame that although Hildon widgets can look really good on the device, it can often take some fiddling to make them look consistent with the rest of the UI. Additionally, oddities in some widgets can leave you baffled, or amused. The most annoying thing I have come across regarding this app is just how little I can get it integrated. The file manager is all hard-coded so there's no way to add a Send to Contact menu item, and no buttons can be added to the libsharing dialog (which appears when the user shares a photo) which is annoying as it looks like it's missing this feature. Oh, and Telepathy is pretty sweet.

A few weeks ago, I got a cool Christmas present from work. It's pretty sweet, and I've been writing some apps for it. I'll try and blog about them here. A while ago, I wrote some a number of account plugins for Maemo 5, so that other Telepathy connection managers could be used and well-integrated into the N900's Contacts and Conversations User interface. This enables the following extra protocols:

• AIM
• GaduGadu
• Groupwise
• ICQ
• IRC (currently only supports 1-to-1 private messages)
• MSN (soon to gain calling support)
• QQ
• link-local XMPP
• Sametime
• Yahoo

There are still a few problems which I'll try to iron out soon enough but they appear to be working pretty well. The best thing about it is clearly the integration with the rest of the phone, as demonstrated by Marco in the screenshot above. The PR1.1 update, which is due today, also opens the door for enabling other protocols dynamically by providing libpurple plugins. I will be adding Facebook Chat support soon, and someone else has made a package for Twitter. This is in extras-testing for you all to download and try out. You can find all the packages in the "Network" category of the Application manager. The Extra protocol plugins for Conversations and Contacts metapackage (telepathy-extras, in reality) pulls in all the cool account plugins and connection managers of the time. File bugs from the maemo.org package link.

I'm now a Debian Developer. :) My thanks go to Ben Hutchings, gregor herrmann, Chris Lamb, Christoph Berg, Steve McIntyre, Brad Smith, Jonny Lamb, Chris Boyle, everyone at credativ, and everyone else who helped me with Debian over the last... almost six years? Actually, I've been a DD since the weekend, but have been too absorbed to write about it. In other news, I'm moving house today... I'm more or less packed now. My internet access may be intermittent at home for the next few weeks. (Home is now Southampton, UK.)

So we all know how awesome Telepathy is, but sometimes debugging it can be rather a pain. I die a little every time I see so, just run gabble from the command line with GABBLE_DEBUG=all etc on #telepathy. Daf started implementing a debug interface in gabble but he fled the country, so I finished it off, and added a hot new dialog to Empathy. So now that your debug messages are appearing on D-Bus, you could easily write a simple script to tweet them. Sounds like a good idea, right? Additionally, if you re a Telepathy developer, this may be overkill^Wuseful for your zshrc:

g ()  
    project=$(basename  pwd )
    GABBLE_DEBUG=all SALUT_DEBUG=all EMPATHY_DEBUG=all HAZE_DEBUG=all \
        GABBLE_PERSIST=1 SALUT_PERSIST=1 HAZE_PERSIST=1  EMPATHY_SRCDIR=. \
        libtool --mode=execute gdb -q --args ./src/$project --g-fatal-warnings
 

Welcome back for the last part of the reviews. You may want to look at the previous parts : part 1 and part 2. Jigdo-ivory, a JavaScript Jigdo client Presentation Debian CDs and DVDs take up a huge mount of space on download servers. Using jigdo to download those images can significantly reduce the amount of bandwidth and space needed on the central servers. Unfortunately, jigdo currently needs special client software to be downloaded/installed first. Adding support directly into a browser-based application could potentially make a very big difference for first-time users here. Jigdo was created in 2001. It allowed to create ISOs from .debs grabbed from regular mirrors. It eliminated the need to duplicate the entire contents of the package repository into ISO files for each release, or even more importantly, for weekly snapshots of testing/unstable/whatever. You may find the complete proposal from the student here. The original idea originated from the Debian-CD people, who wanted to explore ideas about creating a light web client. The project was mentored by Steve McIntyre, who developed a new version of the Jigdo tools, jigit, which is much more efficient. Student Dustin Rayner was a 5th year senior undergraduate student at the Oklahoma Christian University in Oklahoma City, Oklahoma. I studied Computer Engineering for 3 years as a Computer Engineering student before deciding to pursue a Mathematics and Computer Science degree. Result This project was unsuccessful due to numerous issues. First, because of an inadequate technical preparation of the original proposal. The Debian-CD people were too optimistic with the possibilities of Javascript. In the end, the copying and checksumming part of the Jigdo process were implemented but the checksumming (with a Javascript implementation of md5) was so slow that it was unusable (think 50kb/s on a regular laptop at full CPU charge). The student did the right thing to investigate Java and ActiveX but it was too late unfortunately and he ultimately lacked the experience and knowledge in the relevant technologies. If the proposal is tried again, the student would be requested to have much more experience with Java (and possibly ActiveX). Those would be much more efficient for the task, as they are the most used technologies among on-line anti-virus scanners, which have a workload somewhat similar to Jigdo. I could not find further public involvement of Dustin Rayner within Debian. Aptitude-gtk, usability and GTK+ GUI for the Aptitude package manager Presentation A GTK+ GUI for Aptitude that will work alongside improved current ncurses and command-line interfaces. This will offer an alternative to Synaptic with an interface design geared toward usability and advanced functionality. Debian currently supports multiple non-command-line package managers, the most used being Synaptic and Aptitude. Synaptic uses a GTK+ interface but offers no command-line mode. Aptitude offers a command-line mode but no X interface, although it offers a ncurses interface.
Comparing the interfaces of Synaptic and Aptitude reveal many design differences. Although Synaptic may be more accessible to beginners, Aptitude offers many interface behaviors and functions that are useful to the regular to advanced users : fully hyperlinked tabbed navigation between packages and versions of packages, mostly modeless interface, interactive dependency conflict resolver The proposal was introduced by the student in coordination with Daniel Burrows, the mentor and developer of Aptitude. Student Obey Arthur Liu was a 22 year old french student of Computer Science and Applied Mathematics at Grenoble Institute of Technology - ENSIMAG, in France. Did I mention that he s also yours truly ? If you want to know more, you might be interested in my previous post. Result This project was successful. The interface was mostly done and functional by the end of the summer. Daniel merged the code into the main post-lenny branch. Development is still ongoing and packages are released into Experimental. For further information, just read the rest of my blog. I could find some further public involvements of Obey Arthur Liu within Debian. Doh! Lintian for fuller automated setups Presentation lintian, the Debian package checker, at the moment presents possible problems in three categories: errors, warnings and informational messages. This leads to several problems, most importantly that the severity and certainty of a check can t be expressed separately. In the course of this project, the student should design and implement in lintian an improvement of the current situation, for example by using a two-letter code (one for certainty, one for severity). This project would make lintian errors much more fine-grained and help in maintaining pertinent quantitative analysis of package quality. The project was mentored by Marc Brockschmidt. The project proposal was commonly introduced by the Lintian team. Student UPDATED: Jord Polo Bard s has done a lot of work with translation in Catalan, his native tongue. He can usually be found on #debian-catalan. He also maintains a few packages as a DM. Result This project was successful. The classification was entirely done. Jord also helped with the new lintian.debian.org website. The Lintian team was very satisfied with the revamped errors list and new website. They have an immediate impact on packages quality reporting. Jord is still active within Debian, helping package a few games. Debexpo, a generic web-based package repository Presentation mentors.debian.net is currently a very specialized web-based repository that allows everybody to contribute software packages to Debian without the need to be a Debian Developer (or Debian Maintainer). It has successfully helped simplifying the sponsoring process in the last years. However it needs to be refactored and in the process should be turned into a generic piece of software that can be used for other Debian source/binary package repositories, too. Mentors is a very good initiative to recruit new packages maintainers (and needs your help!) and the software underlying it could be reused for many different purposes (think PPA). The project was mentored by Christoph Haas. The project proposal was commonly introduced by the mentors team. Student Jonny Lamb was a Computer Science student in the United Kingdom. He was already quite involved within Debian, maintaining a lot of significant packages. Result This project was successful. The whole proposal was perfectly executed. Jonny now continues to develop debexpo, with the mailing-lists and commit logs showing interesting activity. Of course, help for debexpo is appreciated to get it into full shape. Jonny has since become a Debian Developer (here is his AM report). Congratulations to him. It s nice to end on a nice note isn t it ? Now that we re done with the individual reports, I m going to write down my recommendations report. Hopefully it will help with next year s Summer of Code.

It's been nearly 10 months after the previous Tasks release, for which I profusely apologise. I wanted to fix one final bug before releasing, which sadly took five months to get around too... I eventually fixed it last night, so here is Tasks 0.14.

• Magic date parser when adding tasks
• Support libunique in the GTK+ port (Jonny Lamb)
• Support OWL window menus in the GTK+ port
• Save and restore the edit window size
• Add a clickable note icon (#548)
• Ellipsize the undo/redo menu items (#741)
• Make sure the date popup doesn't go off the screen (#752)

The most interesting change in this release is the magic date parser, which first landed back in March. This lets you use Google Calendar style descriptive tasks such as "release tasks today", "do shopping next tuesday" or "pay bills on 2nd". There are many patterns that are matched but I need two things from any users of Tasks.

1. Translations. At the moment there are only English and French translations for the strings, which are critical for the parser to work. Translators, please update the translations!
2. Feedback. The parser handles all of the natural language expressions that I thought would be useful. There are probably plenty more which are not handled, so if you find one which isn't handled (or is handled incorrectly) then please file a bug.

Oh, and one last thing. The OpenMoko and Maemo ports have likely bitrotted. New functionality has been added to the platform abstraction and I don't think those ports were updated. If someone actively uses Tasks on either Maemo or OpenMoko and is willing to test builds before release, please contact me.

debexpo (Debian package exposition) is a web application that allows one to run a user-friendly public Debian package repository with social interaction that one may be used to from social networking sites. debexpo will be the basis for the mentors.debian.net site but will be useful for others as well. debexpo is the project I am working on for this year’s Summer of Code for Debian under the watch of Christoph Haas debexpo is more than just a web application though. It was based on suggestions by you, and therefore it has some nifty features:

• Uploading is done through HTTP PUT directly in debexpo, and handled immediately. This means that packages can be available within seconds of you uploading the package instead of having to wait for a cron job running an importer.
• debexpo supports plugins for several stages of package life-cycle. The main use of these are for QA purposes on the package, such as automatically running Lintian, checking the watch file, or checking bugs closed actually belong to the package in question, but there is scope for much more. Plugins are easy so you can customize a repository to check for whatever you want. Other cool plugins allow features such as pulling an orig.tar.gz from Debian if it is absent from the upload and not in the repository already. Plugins provide you the option to customize your repository for any purpose.
• Users will be able to have their own personal repository (much like Launchpad’s PPAs) to host binary packages. This is simply achieved by creating a new user, uploading, and adding the appropriate entry to your sources.list.
• Sponsors will be able to tell debexpo what kind of packages he or she likes to see, and a filtered package list will be shown. These kind of filters will include whether it’s a python package, or C library, whether it uses CDBS or straight debhelper, or even whether the maintainer is in the New Maintainer process (this is clearly a mentors-specific feature).
• Packages will be able to be commented on by other users, in the same way as Ubuntu’s REVU tool. This keeps package discussion in one place, and Debian Developers can claim to have uploaded the package. This is useful to stop the scenario of a Debian Developer reviewing a package that has requested a sponsor, and then finding the package has been uploaded already after the initial uploader left no mention of this.
• And more to come.

Development can be tracked through its Trac instance: http://debexpo.workaround.org/, where I invite you to submit tickets or even submit patches! Its Git repository is public: http://debexpo.workaround.org/debexpo.git (and mirrored here). Last but not least, the there is also a low-traffic mailing list. I invite you to try it out, and report bugs. Posting to the list is a great way to get in contact. There is little visible eye-candy in your browser to show for the work so far as nearly all the work so far has gone into the backend. A sneak peek at what it looks like at the moment is available though: As you can see, the theme is somewhat familiar. Hopefully, as the SoC program nears an end, this will be fixed. Oh, and hello: this is my first post to Planet Debian.