YaST/Events/Workshop Prague 2007/Day 3

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ZYpp State (New API, Features, Bindings)

Show new Design and Features of ZYpp

Presentation by Duncan Mac-Vicar Prett <dmacvicar@suse.de>

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Notes & Discussion

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New Features in zypper

Presentation by Jan Kupec <jkupec@suse.cz>

PDF (207 kB): [1]

Notes & Discussion

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Solver Test Suite

How to Generate Solver Test Cases and Wow to Test Them

Presentation by Stefan Schubert <schubi@suse.de>

A complete description of the solver testsuite can be found here.

Notes & Discussion

• Create a testcase
  • UI: – Generate a testcase in the UI
  • Zypper: zypper <action> --debug-solver
• Testcase can be used for calculating the media order
• You can setup a url instead of a channel xml file and use existing repos
• You can run deptestomatic in the directory of the generated testcase (libzypp-testsuite-tools)
• Take a look at the dialogsolver which shows graphical dependencies just add <graphic/> tag to the testcase
• AI: Put Testcase solver in bindings
• AI: Automate checking installing all packages of a repo?
• AI: Colorize requires and provides

ZYpp Application Layer

Requirements for ZYpp Application Layer

Presentation by Katarina Machalkova <kmachalkova@suse.cz>

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Notes & Discussion

• There is a two years old specification for this written prior to developing libzypp.
• Selectables are very important for the UI
• Currently selectables are handled in an add-on layer on top of libzypp (libzypp/ui), but they don't integrate smoothely with all the rest:
  • Pool resolvables know nothing about selectables
  • No back pointer from resolvables to selectables
  • UI layer uses kludges like a map from resolvables to selectables:
    • Error prone (assumes no resolvables are added to or removed from the pool)
    • Abstraction violation: Knowledge about internals in entirely the wrong place
    • Performance and memory penalty for building the map

• AI sh, kmachalkova, jkupec: Write a new spec (here in the openSUSE Wiki)

Selectables and Proposals

Presentation by Michael Andres <ma@suse.de>

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Notes & Discussion

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ZYpp Future Discussion

ZYpp Future Directions

Presentation by Duncan Mac-Vicar Prett <dmacvicar@suse.de> and Michael Andres <ma@suse.de>

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Notes & Discussion

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zypper Future

Presentation by Jan Kupec <jkupec@suse.cz>

PDF (207 kB): [2]

Notes & Discussion

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Sat-Solver

Presentation by Klaus Kämpf <kkaempf@suse.de>

PDF (160 kB): [3]

Notes & Discussion

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UI Library Independent of YaST

The Mod-UI (Modular UI): Making The YaST UI Usable without YCP

This is about separating the YaST UI into a core UI that can be called from C++ (and thus from other languages) without linking against all the YaST framework.

Presentation by Stefan Hundhammer <sh@suse.de>

PDF (2.3 MB): [4] Alternate site: [5]

Notes & Discussion

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Language Independent UI, Challenges Ahead for Non-YCP Modules

This is about language bindings for UI built-ins, but still using the existing YaST framework and YCP data types.

Presentation by Martin Vidner <mvidner@suse.cz>

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Notes & Discussion

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Different Bindings -- Different Hacks

How language bindings for YaST work internally.

Presentation by the Martin Vidner <mvidner@suse.cz> and Jozef Uhliarik <juhliarik@suse.cz>

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Notes & Discussion

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Previous day: Workshop Prague 2007 Day 2