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 nil
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.
We have started this during HackWeek 11 with the Zombie Killer project, but did not finish back then.
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.
This project is part of:
Hack Week 13
Activity
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My wife needs a website to catalog and sell the products of her upcoming bakery, and I need to learn and practice modern Rails. So I'm using this Hack Week to build a modern store using the latest Ruby on Rails best practices, ideally up to the deployment.
TO DO
- Index page
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- Admin area -- Supplies calculator based on orders -- Orders notification
- Authentication
- Payment
- Deployment
Day 1
As my Rails knowledge was pretty outdated and I had 0 experience with Turbo (wich I want to use in the app), I started following a turbo-rails course. I completed 5 of 11 chapters.
Day 2
Continued the course until chapter 8 and added live updates & an empty state to the app. I should finish the course on day 3 and start my own project with the knowledge from it.
Hackweek 24
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Day 1
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Description
Prepare openSUSE Tumbleweed project for new GHC Haskell compiler and separate builder (Hadrian) from GHC build
Goals
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Resources
opensuse haskell package gen project