Projects/Mobile/Meetings/Akademy2010

When? Where?

• Tuesday, July 6th, 16:00-18:00
• Akademy 2010, Demola, Area 4

Attendees

In alphabetical order, these are the people expected to attend the KDE Platform Mobile BoF at Akademy 2010:

• Kevin Ottens
• Boudewijn Rempt
• Artur Souza

Minutes

Definition: KDE Platform == kdesupport + kdelibs + kdebase-runtime

KDE as a guest not as the workspace

• Interacting with "foreign" components
  • Tracker
  • MeeGo Touch framework
  • Notification service
  • harvesting PIM data from the device
  • solid with whatever there
  • pulseaudio
  • geoclue
  • (Harmattan) kdeinit like trick
  • kwallet
  • (platform security / DRM)
• Not enforcing our settings
  • Style (already fixed? check it!)
  • Proxy/SSL/Network settings (let's Qt do it when possible)

Constraining the platform

• profiling, priorities: startup time, battery time <= easy!, memory profiling <= hard!
  • timechart to log activity (Helio)
  • for the rest ask Lubos ;)

• network bandwidth (Kevin for IMAP)
  • usual tools (wireshark, tcpdump...)

• ksycoca (David, packaging side: Dirk, Sune)
  • Rejected solution (at least for now)
    • libkok, hackish, shipping premade cache in the package
    • rely on Qt? for a "system cache"
  • Preferred solution
    • running kbuildsycoca on install using package facilities, automatic behavior can be disabled (means kbuildsycoca enters with kdecore)
    • remove user settings from sycoca?
    • split the sycoca base? (mimetypes definitely)
  • kbuildsycoca4 got profiled, some hashing function misbehaving? Thiago to the rescue

• total disk size (whole list of .so to run)
  • remove anything marked deprecated
  • icons, do we need to ship them? probably not!
  • packagers should split
  • spare the plugins for cryptic formats (packaging again)
  • translations bringing only the right ones (package management service)

• shared libs deps within the platform (Kevin)
  • hard cuts for integration features (transitional)
  • "soft linking"
  • profiles would be the list of what is built/install ("tested combinations", shouldn't overlap)

• runtime time deps within the platform (plugins, dbus services)
  • creating the data, have the list of runtime bits, which ones do we need?
  • profiles should include runtime
  • most cases are easy: associate a lib with its runtime
  • runtime needed only for scripts: goes in an extras profile

• GUI contained in the platform (David, Kevin)
  • refactoring
  • changed at runtime (QUiTools? platform plugin for KIO?)
  • creating the data, we very likely have more than KIO

Packaging!

• Dealing with outdated, pushing newer versions of deps
  • Influencing before release: take latest, greatest
  • Need overview on their release process
  • Not depend on the features of newest versions, longer support for older Qt versions for instance

• Splitting the packages (see with volker current state for kontact mobile)
  • kontact mobile: kdelibs 1 lib == 1 package, kdebase-runtime around 20 packages, kdepimlibs 1 lib == 1 package, etc.
  • Communicate about the profiles, reunite packaging efforts based on that

Target platforms

• MeeGo
• WinCE 6.5
• Anything running on high-end phones and bigger

Afterthoughts

Other issues that people thought about after the meeting, but wasn't actually discussed there.

KDE as a guest

• Kill kded, knotify and kdeinit after last kde app exiting. This existed with dcop back in kde3 days.