Monday, June 2, 2014

Calling for your UOS users session!

Ubuntu Online Summit is approaching, happening on June 10th-12th.This time it's a bit different from how vUDS has been in the past. Rather than the narrower developer focus, this intends to be a full blown community summit. If you've attending things like ubuntu open week or a classroom session in the past, all of those types of sessions are welcome and encouraged too.

To help foster these types of sessions, there is a special Users track.

"The focus of the Users track is to highlight ways to get the most out of Ubuntu, on your laptop, your phone or your server. From detailed how-to sessions, to tips and tricks, and more, this track can provide something for everybody, regardless of skill level."

Track Leads:
Elizabeth Krumbach Joseph
Nicholas Skaggs
Valorie Zimmerman

I'm excitied to be a track lead for this track along with Liz and Val. We are all inviting you to consider scheduling a session to share your knowledge of ubuntu. Share an idea, discuss your passion, give a how-to, etc. The sessions in this track are meant for other users of ubuntu like yourself, so feel free to share.

Regardless of your desire to contribute a session, I would encourage everyone to take a look at the schedule as it evolves and considering joining in sessions they find interesting.
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Remember, this track is your track and filled with your sessions. Let's help make the online summit a success.

So ready to propose a session? Checkout this page and feel free to ping Val, Liz or myself for help. Don't forget to register to attend and check out the currently scheduled sessions!

Thursday, May 1, 2014

Building cross-architecture click packages

Building click packages should be easy. And to a reasonable extent, qtcreator and click-buddy do make it easy. Things however can get a bit more complicated when you need to build a package that needs to run on an armhf device (you know like your phone!). Since your pc is almost certainly based on x86, you need to use, create or fake an armhf environment for building the package.

So then what options exist for getting a proper build of a project that will install properly on your device?

A phone can be more than a phone
It can also be a development environment!? Although it's not my recommendation, you can always use the source device to compile the package with. The downsides of this is namely speed and storage space. Nevertheless, it will build a click.
  1. shell into your device (adb shell / ssh mydevice)
  2. checkout the code (bzr branch lp:my-project)
  3. install the needed dependencies and sdk (apt-get install ubuntu-sdk)
  4. build with click-buddy (click-buddy --dir .)
Chroot to the rescue
The click tools contain a handy way to build a chroot expressly suited for use with click-buddy to build things. Basically, we can create a nice fake environment and pretend it's armhf, even though we're not running that architecture.

sudo click chroot -a armhf -f ubuntu-sdk-14.04 create
click-buddy --dir . --arch armhf

Most likely your package will require extra dependencies, which for now will need to be specified and passed in with the --extra-deps argument. These arguments are packages names, just like you would apt-get. Like so;

click-buddy --dir . --arch armhf --extra-deps "libboost-dev:armhf libssl-dev:armhf"

Notice we specified the arch as well, armhf. If we also add a --maint-mode, our extra installed packages will persist. This is handy if you will only ever be building a single project and don't want to constantly update the base chroot with your build dependencies.

Qtcreator build it for me!
Cmake makes all things possible. Qt Creator can not only build the click for you, it can also hold your hand through creating a chroot1. To create a chroot in qtcreator, do the following:
  1. Open Qt Creator
  2. Navigate to Tools > Options > Ubuntu > Click
  3. Click on Create Click Target
  4. After the click target is finished, add the dependencies needed for building. You can do this by clicking the maintain button.  
  5. Apt-get add what you need or otherwise setup the environment. Once ready, exit the chroot.
Now you can use this chroot for your project
  1. Open qt creator and open the project
  2. Select armhf when prompted
    1. You can also manually add the chroot to the project via Projects > Add kit and then select the UbuntuSDK armhf kit.
  3. Navigate to Projects tab and ensure the UbuntuSDK for armhf kit is selected.
  4. Build!
Rolling your own chroot
So, click can setup a chroot for you, and qt creator can build and manage one too. And these are great options for building one project. However if you find yourself building a plethora of packages or you simply want more control, I recommend setting up and using your own chroot to build. For my own use, I've picked pbuilder, but you can setup the chroot using other tools (like schroot which Qt Creator uses).

sudo apt-get install qemu-user-static ubuntu-dev-tools
pbuilder-dist trusty armhf create
pbuilder-dist trusty armhf login --save-after-login


Then, from inside the chroot shell, install a couple things you will always want available; namely the build tools and bzr/git/etc for grabbing the source you need. Be careful here and don't install too much. We want to maintain an otherwise pristine environment for building our packages. By default changes you make inside the chroot will be wiped. That means those package specific dependencies we'll install each time to build something won't persist.

apt-get install ubuntu-sdk bzr git phablet-tools
exit

By exiting, you'll notice pbuilder will update the base tarball with our changes. Now, when you want to build something, simply do the following:

pbuilder-dist trusty armhf login
bzr branch lp:my-project
apt-get install build-dependencies-you-need

Now, you can build as usual using click tools, so something like

click-buddy --dir .

works as expected. You can even add the --provision to send the resulting click to your device. If you want to grab the resulting click, you'll need to copy it before exiting the chroot, which is mounted on your filesystem under /var/cache/pbuilder/build/. Look for the last line after you issue your login command (pbuilder-dist trusty armhf login). You should see something like, 

File extracted to: /var/cache/pbuilder/build//26213

If you cd to this directory on your local machine, you'll see the environment chroot filesystem. Navigate to your source directory and grab a copy of the resulting click. Copy it to a safe place (somewhere outside of the chroot) before exiting the chroot or you will lose your build! 

But wait, there's more!
Since you have access to the chroot while it's open (and you can login several times if you wish to create several sessions from the base tarball), you can iteratively build packages as needed, hack on code, etc. The chroot is your playground.

Remember, click is your friend. Happy hacking!

1. Thanks to David Planella for this info

Monday, April 14, 2014

Trusty Release Week: Get your test results in!

As promised, here is your reminder that we are indeed fast approaching the final image for trusty. It's release week, which means it's time to put your energy and focus into finding and getting the remaining bugs documented or fixed in time for the release.

We need you!
The images are a culmination of effort from everyone. I know many have already tested and installed trusty and reported any issues encountered. Thank you! If you haven't yet tested, we need to hear from you!

How to help
The final milestone and images are ready; click here to have a look.

Execute the testcases for ubuntu and your favorite flavor images. Install or upgrade your machine and keep on the lookout for any issues you might find, however small.

I need a guide!
Sound scary? It's simpler than you might think. Checkout the guide and other links at the top of the tracker for help.

I got stuck!
Help is a simple email away, or for real-time help try #ubuntu-quality on freenode. Here are all the ways of getting ahold of the quality team who would love to help you.

Community
Plan to help test and verify the images for trusty and take part in making ubuntu! You'll join a community of people who do there best everyday to ensure ubuntu is an amazing experience. Here's saying thanks, from me and everyone else in the community for your efforts. Happy testing!

Monday, March 31, 2014

Time to test trusty!

Say that three times fast. Time to test trusty,
time to test trusty, time to test trusty!
Ahh it's my favorite time of the cycle. This is the part were we all get serious, go a little bit crazy, and end super excited to release a new version of ubuntu into the world. This time it's even more special as the new version is a brand new LTS, which we look forward to supporting for the next 5 years.


The developers and early adopters have been working hard all cycle to put forth the best version of ubuntu to date. For you! For all of us! It's time to fix bugs, do last minute polish and prepare for the release candidate which will occur around April 11th.

We need you!
This is were you dear reader come in. You see despite their good looks and wonderful sense of humor and charm, the release team doesn't like to release final images of ubuntu that haven't been thoroughly tested.

The release team is ready to pounce on untested images
We need testing, and further, we need the results of that testing! We need to hear from you. Passing test results matter just as much as failures. The way to record these results is via the isotracker; we can't read your mind sadly!

How to help
Mark your calendars now for April 11th - April 16th. Pick a good date for you and plan to download and test the release candidate image. You'll see a new milestone on the tracker, and an announcement here as well when the image is ready. I won't let you forget, promise!

Execute the testcases for ubuntu and your favorite flavor images. Install or upgrade your machine and keep on the lookout for any issues you might find, however small.

I need a guide!
Sound scary? It's simpler than you might think. Checkout the guide and other links at the top of the tracker for help.

I got stuck!
Help is a simple email away, or for realtime help try #ubuntu-quality on freenode. Here's all the ways of getting ahold of the quality team who would love to help.

Community
Plan to help test and verify the images for trusty and take part in making ubuntu! You'll join a community of people who do there best everyday to ensure ubuntu is an amazing experience. Here's saying thanks, from me and everyone else in the community for your efforts. Happy testing!

Tuesday, March 25, 2014

Trusty looms closer: Final Beta is here!

It may be hard to believe but the next, and dare I say, best, LTS for ubuntu is releasing very soon. We need your help in polishing out critical bugs and issues!

How can I help? 
To help test, visit the iso tracker milestone page for 'Trusty Beta 2'.  The goal is to verify the images in preparation for the release. Find those bugs! The information at the top of the page will help you if you need help reporting a bug or understanding how to test. 

So what's new? 
Besides the usual slew of updates to the applications, stack and kernel, unity has new goodies like minimize on click, menus in toolbar, new lockscreen, and borderless windows!

What if I'm late?
The testing runs through this Thursday March 27th, when the the images for beta 2 will be released. If you miss the deadline we still love getting results! Test against the daily image milestone instead.

Thanks and happy testing everyone!

Thursday, March 13, 2014

Keeping ubuntu healthy: Core Apps

Continuing our discussion of testing within ubuntu, today's post will talk about how you can help the community core apps stay healthy.

As you recall the core apps go through a series of QA before being released to the store. However bugs in the application, or in the platform itself can still be exposed. The end result is that the dashboard contains tests failures for that application. To release a new stable image, we need a green dashboard, and more importantly we need to make sure the applications work properly.

Getting plugged in
So to help out, it's important to first plug into the communication stream. After all, we're building these applications and images as a community! First, join the ubuntu phone group on launchpad and sign up for the phone mailing list. The list is active and discussing all issues pertaining to the ubuntu phone. Most importantly, you will see landing team emails that summarize and coordinate issues with the phone images.

From there you can choose a community core app to help improve from a quality perspective. These applications all have development teams and it's helpful to stay in contact with them. Your merge proposal can serve as an introduction!

Finding something to work on
So what needs fixing? A landing team email might point out a failing test. You might notice a test failure on the dashboard yourself. In addition each application keeps a list of bugs reported against it, including bugs that point out failing tests or testing needs. For example here's the list of all new autopilot tests that need to be written for all of the core apps. Pick an app, browse the buglist, assign a bug to yourself, and fix it.

For example, here's the list of bugs for music app. As of this writing you can see several tests that need written, as well as a bug for a test improvement.

You can also simply enhance the app's existing testsuite by fixing a flaky test, or improving the test to use best practices, etc. As a bonus for those reading this near it's original publication date, we just had a session @ vUDS covering the core apps and the testing needs we have. Watch the session / browse the pad and pick something to work on.

Fixing things
Look into any failures you find and have a look at the tests. Often the tests can use a little improvement (or maybe an additional test), and you can help out here! Sometimes failures won't happen every run -- this is the sign of a weird bug, or more likely a flaky test.  Fix the test(s), improve them, or add to them. Then commit your work and submit a merge proposal. Follow the guide on the wiki if you need help with doing this.

Remember, you can iteratively run the tests on your device as you work. Read my post on click-buddy for help with this. If you are lacking a device, run the tests on your desktop instead and a reviewer can test against a real device before merging.

Getting Help
For realtime help, check out #ubuntu-quality and #ubuntu-autopilot on freenode. You'll find a group of folks like yourself working on tests, hacking on autopilot and sharing advice. If IRC isn't your thing, feel free to contact us through another method instead. Happy hacking!

Thursday, March 6, 2014

Keeping ubuntu healthy: Manual Image Testing

Continuing our discussion of the testing within ubuntu, today's post will talk about how you can help ubuntu stay healthy by manually testing the images produced. No amount of robots or automated testing in the world can replace you (well, at least not yet, heh), and more specifically your workflow and usage patterns.

As discussed, everyday new images are produced for ubuntu for all supported architecture types. I would encourage you to follow along and watch the progression of the OS through these images and your testing. Every data point matters and testing on a regular basis is helpful. So how to get started?
Settle in with a nice cup of tea while testing!

The Desktop
For the desktop images everything you need is on the image tracker. There is a wonderful video and text tutorial for helping you get started. You report your results on the tracker itself in a simple web form, so you'll need a launchpad account if you don't have one.

The secondary way to help keep the desktop images in good shape is to install and run the development version of ubuntu on your machine. Each day you can check for updates and update your machine to stay in sync. Use your pc as you normally would, and when you find a bug, report it! Bugs found before the release are much easier to fix than after release.

Phablet
Now for the phablet images you will need a device capable of running the image. Check out the list. Grab your device and go through the installation process as described on the wiki. Make sure to select the '-proposed' channel when you install so you will see updates to get the latest images being worked on every time they are built. From there you can update everyday. Use the device and when you find a bug, report it! Here's a wiki page to help guide your testing and help you understand how and where to report bugs.

Don't forget there's a whole team of people within ubuntu dedicated to testing just like you. And they would love to have you join them!