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Project Notes

The Explainer - Ruby Version

This sample implements a Ruby client and server that talk the Explainer Protocol.

The Explainer is totally inspired by Natalie Silvanovich’s Hardware Excuse Generator

Generate Protocol Stubs

$ mkdir lib  # it's not automatic
$ protoc -I ../protocols --ruby_out=lib --grpc_out=lib --plugin=protoc-gen-grpc=`which grpc_ruby_plugin` ../protocols/explainer.proto

Install and Tests

A Gemfile is provided to setup an environment and install the right gems. bundle to install as usual..

$ bundle

I’ve written a few tests (just the parser functionality so far)

$ ./test_parser.rb
Run options: --seed 23181

# Running:

.......

Finished in 0.003182s, 2200.0900 runs/s, 12257.6443 assertions/s.

7 runs, 39 assertions, 0 failures, 0 errors, 0 skips

All good for a test drive…

Test Drive - Ruby Client and Server

Start the server in one console window..

$ ./explainer.rb
ShiFu is waiting to explain all of your problems...

Now try the client in another:

$ ./explain.rb

Here's some help:

Describe your problem in a sentence, using the text "REASON" where-ever you'd like a good excuse inserted

e.g. "Glitching was not a viable attack because of REASON"

$ ./explain.rb "Your phone is probably crashing because of REASON"
Your phone is probably crashing because of the PCB not being manufactured to specification
$ ./explain.rb "Your phone is probably crashing because of REASON"
Your phone is probably crashing because of electromagnetic resonance
$ ./explain.rb "Your phone is probably crashing because of REASON"
Your phone is probably crashing because of jitter in the antenna clock
$ ./explain.rb "Your phone is probably crashing because of REASON"
Your phone is probably crashing because of the susceptibility of resistor R3 to ESD
$ ./explain.rb "Your phone is probably crashing because of REASON"
Your phone is probably crashing because of a lack of shielding against alpha radiation (cosmic rays) in EEPROM

Credits and References

About LCK#53 gRPCRubyMessaging
Project Source on GitHub Return to the Project Catalog

This page is a web-friendly rendering of my project notes shared in the LittleCodingKata GitHub repository.

LittleCodingKata is my collection of programming exercises, research and code toys broadly spanning things that relate to programming and software development (languages, frameworks and tools).

These range from the trivial to the complex and serious. Many are inspired by existing work and I'll note credits and references where applicable. The focus is quite scattered, as I variously work on things new and important in the moment, or go back to revisit things from the past.

This is primarily a personal collection for my own edification and learning, but anyone who stumbles by is welcome to borrow, steal or reference the work here. And if you spot errors or issues I'd really appreciate some feedback - create an issue, send me an email or even send a pull-request.