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if [ -n "$BASH_VERSION" ] || [ -n "$ZSH_VERSION" ]; then
  source /usr/local/share/chruby/chruby.sh
  source /usr/local/share/chruby/auto.sh
fi

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References

• http://en.wikipedia.org/wiki/Futures_and_promises
• https://github.com/kseebaldt/deferred
• https://github.com/mproberts/objc-promise
• https://speakerdeck.com/sheerun/a-plus

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upstream QAirServer_server{
  server unix:/opt/QAirServer/shared/sockets/puma.sock fail_timeout=0;
}

server {
  listen 443 default deferred ssl;
  server_name qairapp.com;

  root /opt/QAirServer/current/public;

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CSS font values

-apple-system-headline1
-apple-system-headline2
-apple-system-body
-apple-system-subheadline1
-apple-system-subheadline2
-apple-system-footnote
-apple-system-caption1

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Deploy Rails 4 app with Dokku on DigitalOcean

Install dokku

First create a Ubuntu 13.04 x64 droplet on DigitalOcean Control Panel

Then ssh with root account, run this in termianl:

$ wget -qO- https://raw.github.com/progrium/dokku/master/bootstrap.sh | sudo bash

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<?xml version="1.0" encoding="UTF-8"?>
<package xmlns="http://apple.com/itunes/importer" version="software5.1">
  <team_id>TEAM-ID</team_id>
  <software>
    <vendor_id>VENDOR-ID</vendor_id>
    <software_metadata>
      <versions>
        <version string="1.1.3">
          <locales>
            <locale name="en-US">

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body {
  font-family: 'HelveticaNeue-UltraLight', 'Helvetica Neue UltraLight', 'Helvetica Neue', Arial, Helvetica, sans-serif;
  font-weight: 100;
  letter-spacing: 1px;
}

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NSString *a = @"bar";
NSString *aSelector = @"uppercaseString";
NSString *b = [a performSelector:NSSelectorFromString(aSelector)];
//NSString *b = objc_msgSend(a, NSSelectorFromString(aSelector));
NSLog(@"b: %@", b);

//=> b: "BAR"

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Objective-C for Rubyist

Basic Syntax

Message

[you say:@"Hello."];

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rails (3.2.13)
pg (0.14.1)
pg_array_parser (0.0.8)
postgres_ext (0.3.1)
  activerecord (~> 3.2.0)
  pg_array_parser (~> 0.0.8)