or: Static Analysis of nil Values in Ruby Code used in YaST.
YaST is written in Ruby. A large part of the code is Ruby that was
transpiled from the YCP language during the YCP Killer project.
To preserve behavior in various edge-case situations, mostly when
was passed around, helper libraries were used.
The resulting code is often long and hard to work with.
Example from SlideShow.rb:
total_time = Ops.add( total_time, Ops.divide(Ops.get_integer(stage, "value", 0), 3495) )
The plan is to find patterns in Y2R-generated code which can
be safely translated into more native Ruby code and translate them. In many
cases this will require proving that the edge cases mentioned above can't
happen (e.g. that passed parameters can't be
nil). This will be done using
static analysis on the code.
Since that time, we started using RuboCop in the team to keep a consistent code style. It is a natural match to bring RuboCop and Zombie Killer together, since both are based on the Parser library. RuboCop-YaST was started by Ladislav Slezak, but Zombie Killer is not fully integrated and working.
During HackWeek 13 the goal is to have a safely working RuboCop-YaST that is able to resocialize some zombies in production code.
Looking for mad skills in:
This project is part of:
Hack Week 13
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