Ruby Script at Work

Ruby Script at Work Lukhnos D. Liu Chief, Lithoglyph Inc.

We’re an ObjC/C++ house...

I love C++...

Templates don’t scare me

for (vector<pair<pair<string, size_t>, set<Node>::const_iterator> >::iterator i = lst.begin() ; i != lst.end() ; ++i) { // iterate the list... if (matches((*i).first.first)) { run((*i).second); } } * modiﬁed actual code

C++ is fast

Speed Improvement (higher is better) ObjC 1.0 1x C++ gen1 5.0 5x C++ gen2 20.0 20x * tested on a 1 GHz PowerPC Mac

Can do everything

In OpenVanilla, We Have... OVStringHelper::Split OVStringHelper::Join OVFileHelper::SlurpFile OVUTF16::FromUTF8 OVStringHelper::StringByReplacingOccurancesOfString WithString(src, occur, replacement) ... and more script-language perks!

</digress>

But...

(that’s why I’m here today!)

C++ needs lots of care

Turn-around speed is slow

Compliation is slooooooow

Bad for more than 1 tool

Choices: sh/Makeﬁle/Ruby

Ruby is advanced

Clear structure

Easy to maintain

post- processing directives aggregate Data Set 1 tool and rinse Merged Processed tool tool Data Set Data Set Data Set 4 cherry pick Data Set 2 and rinse Meged Separation tool Data Set Tool Data Set 5 aggregate Data Set 3 and rinse Data Set 4 Data Set 5 Interm. merge tool Data Set 6 conversion Data Set 7 Data Set * actual process

Windows Build System Source version- Versioned Validation and Dev Dev Code upper Source Files Staging Packages Mac OS X Build System Data Set 7 * actual process

Ruby’s Drawbacks

Modules We Use openssl digest uuidtools Formosa::Mandarin (lukhnos)

Slow... Very slooooooow

String processing Performance C++ 1 100% Perl 0.75 75% Ruby 0.20 20% * estimation on daily use cases

Total time = run time x frequency of run

Won’t deploy to users

Future Plans

My Question...

pair<T, T> equivalent?

Questions

Ruby Script at Work

by lukhnos on Apr 21, 2009

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Ruby Script at Work — Presentation Transcript