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10 years: LL, you and me Tatsuhiko Miyagawa @miyagawa Aug 4, 2012 LL Decade at Ginza Blossom, Tokyo Sunday, September 30, 12

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About • Tatsuhiko Miyagawa • @miyagawa • github.com/miyagawa • cpan: MIYAGAWA • San Francisco, CA Sunday, September 30, 12

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͸͡Ίʹ Sunday, September 30, 12

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LL .* 10th Anniversary Sunday, September 30, 12

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͓ΊͰͱ͏ ͍͟͝·͢ Sunday, September 30, 12

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ຊ೔ͷ͓୊ Sunday, September 30, 12

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Community Code Culture Sunday, September 30, 12

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Community Sunday, September 30, 12

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> ΧϯϑΝϨϯεશମͷςʔϚͱͯ͠͸ɺࠓ·Ͱ ͷ10೥ؒΛৼΓฦΔɺతͳײ͡Ͱ Sunday, September 30, 12

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ੲ࿩ʁ Sunday, September 30, 12

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Topics: Online Games Retro Videogames Vim vs. Emacs Sunday, September 30, 12

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2003 LL Saturday Sunday, September 30, 12

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Open Collaboration Beyond Code Sunday, September 30, 12

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2005 joined Six Apart Sunday, September 30, 12

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Resume search.cpan.org/~miyagawa Sunday, September 30, 12

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Software = People Sunday, September 30, 12

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My code = What I really am Sunday, September 30, 12

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Code Sunday, September 30, 12

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Sharing Code Sunday, September 30, 12

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JFDI Sunday, September 30, 12

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You don’t need someone’s permission to write code. Sunday, September 30, 12

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tokuhirom created a repo while I was asleep. Without my permission :) Sunday, September 30, 12

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Culture Sunday, September 30, 12

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Plack/PSGI Sunday, September 30, 12

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PSGI Sunday, September 30, 12

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#  WSGI def  hello(environ,  start_response):    start_response(“200  OK”,  [        (‘Content-­‐Type’,  ‘text/plain’)    ])    return  [“Hello  World”] Sunday, September 30, 12

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#  Rack class  Hello    def  call(env)        return  [              200,              {  “Content-­‐Type”  =>  ”text/plain”  },                [“Hello  World”]        ]    end end Sunday, September 30, 12

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#  PSGI my  $app  =  sub  {        my  $env  =  shift;        return  [                  200,                [  ‘Content-­‐Type’,  ‘text/plain’  ],                [  ‘Hello  World’  ],        ]; }; Sunday, September 30, 12

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It's been a huge success. Sunday, September 30, 12

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CGI::Application Apache IIS lighttpd CGI.pm CGI fastcgi mod_perl Jifty Mason Catalyst Mason::CGIHandler Catalyst::Engine nginx HTTP::Server ::Simple Sunday, September 30, 12

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PSGI Plack::Middleware Catalyst CGI::App Jifty Dancer Apache lighttpd HTTP::Server::PSGI Perlbal mod_psgi Plack::Handler::* (CGI, FCGI, Apache) Starman Twiggy uWSGI Corona Feersum Mojolicious Sunday, September 30, 12

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Plack Sunday, September 30, 12

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Inspired by: Rack, Werkzeug Sunday, September 30, 12

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• Copied the templates • Looked at how Werkzeug catches exceptions with stracktrace • Ported to use Eval::WithLexicals and Devel::StackTrace Plack-Middleware-InteractiveDebugger Sunday, September 30, 12

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Lessons • Don't just borrow the idea. Copy it (PSGI) • Copy the ecosystem too (Plack) • Be aware of the difference in notations when copying it :) Sunday, September 30, 12

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WSGI: Dec 2003 Rack: Aug 2009 (0.9) Sunday, September 30, 12

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“The nicest thing about being late is that there are plenty of things left to steal.” Sunday, September 30, 12

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When in doubt, we can always look at what WSGI or Rack do. Sunday, September 30, 12

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Better late than never Sunday, September 30, 12

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Better late than too early :) Sunday, September 30, 12

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Plack 1.0 Sunday, September 30, 12

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Cross-language Pollination Sunday, September 30, 12

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More examples Sunday, September 30, 12

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Plack: Another thing stolen from Ruby Sunday, September 30, 12

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“There’re only two hard things in Computer Science: cache invalidation and naming things.” -Phil Karlton Sunday, September 30, 12

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“There’re only two hard things in Computer Science: cache invalidation, naming things and off-by-one errors.” -Phil Karlton Sunday, September 30, 12

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We tried hard to name things differently. Sunday, September 30, 12

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Too many ::’s! Hard to type nor say. People tend to shorten the names. e.g. MXMARMR (MooseX::MetaAttribute::Role::Meta::Role) Sunday, September 30, 12

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Perl • HTTP::Server::Simple • JSON::XS • Devel::StackTrace • Net::OAuth::Lite • Text::CSV_XS Sunday, September 30, 12

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Python • python-json • pyoauth2 • pygeoip • PyYAML • Numpy Sunday, September 30, 12

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Ruby • Yajl • Psych • unicorn • thin • puma • doorkeeper • kaminari • paperclip • resque • pry • factory_girl • capybara Sunday, September 30, 12

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Perl Descriptive, boring, ::Simple Python Descriptive, confusing, py*, *.py Ruby Fancy, creative, chaotic Sunday, September 30, 12

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except Frameworks. Django, bottle, Catalyst, Dancer, Mojolicious, Rails, Sinatra Sunday, September 30, 12

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People tend to love software with names. (citation needed) Sunday, September 30, 12

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Starman Starlet Twiggy Markapl Corona Pinto Xslate Carton Confusing for a bit, but it feels more "real". Sunday, September 30, 12

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More inspirations from Ruby... Sunday, September 30, 12

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Go to conferences Inspire each other Sunday, September 30, 12

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Keep cross-language conference like this going! Sunday, September 30, 12

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Thanks for the invitation & listening. Sunday, September 30, 12

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Enjoy the rest of the conference Sunday, September 30, 12

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Questions? Sunday, September 30, 12