This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.
To capture the video (filesize: 19MB), using the free "QuickTime Player" application:
<?xml version="1.0" encoding="UTF-8"?> | |
<Bucket | |
type = "2" | |
version = "2.0"> | |
<Breakpoints> | |
<BreakpointProxy | |
BreakpointExtensionID = "Xcode.Breakpoint.SymbolicBreakpoint"> | |
<BreakpointContent | |
shouldBeEnabled = "Yes" | |
ignoreCount = "0" |
The regex patterns in this gist are intended only to match web URLs -- http, | |
https, and naked domains like "example.com". For a pattern that attempts to | |
match all URLs, regardless of protocol, see: https://gist.github.com/gruber/249502 | |
# Single-line version: | |
(?i)\b((?:https?:(?:/{1,3}|[a-z0-9%])|[a-z0-9.\-]+[.](?:com|net|org|edu|gov|mil|aero|asia|biz|cat|coop|info|int|jobs|mobi|museum|name|post|pro|tel|travel|xxx|ac|ad|ae|af|ag|ai|al|am|an|ao|aq|ar|as|at|au|aw|ax|az|ba|bb|bd|be|bf|bg|bh|bi|bj|bm|bn|bo|br|bs|bt|bv|bw|by|bz|ca|cc|cd|cf|cg|ch|ci|ck|cl|cm|cn|co|cr|cs|cu|cv|cx|cy|cz|dd|de|dj|dk|dm|do|dz|ec|ee|eg|eh|er|es|et|eu|fi|fj|fk|fm|fo|fr|ga|gb|gd|ge|gf|gg|gh|gi|gl|gm|gn|gp|gq|gr|gs|gt|gu|gw|gy|hk|hm|hn|hr|ht|hu|id|ie|il|im|in|io|iq|ir|is|it|je|jm|jo|jp|ke|kg|kh|ki|km|kn|kp|kr|kw|ky|kz|la|lb|lc|li|lk|lr|ls|lt|lu|lv|ly|ma|mc|md|me|mg|mh|mk|ml|mm|mn|mo|mp|mq|mr|ms|mt|mu|mv|mw|mx|my|mz|na|nc|ne|nf|ng|ni|nl|no|np|nr|nu|nz|om|pa|pe|pf|pg|ph|pk|pl|pm|pn|pr|ps|pt|pw|py|qa|re|ro|rs|ru|rw|sa|sb|sc|sd|se|sg|sh|si|s |
I started using FreeNAS in August 2013. It is fantastic piece of software and I have been really impressed by the upgrades just in the few months I've been using it. It looks like they recently went to a plugin system as of version 9 to make installing software easier for end users. I've ran into several issues related to plugins and user + group permissions so I decided to just use the available FreeBSD port system. After fiddling for a few days (now turned into months) I believe I have created something helpful for the community and anyone interested in picking up the port system. The sandbox nature of FreeNAS's jail system is especially helpful for playing around without having any consequence on your core system.
Here are straight-forward instructions to setting up a bunch of different software on FreeNAS. If you make a terrible error, just throw up another plugin sandbox and repeat.
import Cocoa | |
var MAYBE: Bool { | |
get { | |
return Bool(Int(arc4random_uniform(2))) | |
} | |
} | |
var thisIsTotallyAGoodIdea = MAYBE |
// | |
// JAZMusician.h | |
// JazzyApp | |
// | |
#import <Foundation/Foundation.h> | |
/** | |
JAZMusician models, you guessed it... Jazz Musicians! | |
From Ellington to Marsalis, this class has you covered. |
Disclaimer: This piece is written anonymously. The names of a few particular companies are mentioned, but as common examples only.
This is a short write-up on things that I wish I'd known and considered before joining a private company (aka startup, aka unicorn in some cases). I'm not trying to make the case that you should never join a private company, but the power imbalance between founder and employee is extreme, and that potential candidates would
# Run gRPC and Swift in Cloud Shell | |
# First use apt-get to install packages needed to run Swift | |
sudo apt-get update | |
sudo apt-get install -y clang clang-3.8 lldb-3.8 libicu-dev libtool libcurl4-openssl-dev libbsd-dev build-essential libssl-dev uuid-dev curl unzip | |
# Next create a ~/local directory for some tools that we'll download | |
cd | |
mkdir -p local |
# Run OpenAPI Compiler and Swift in Cloud Shell | |
# First use apt-get to install packages needed to run Swift | |
sudo apt-get update | |
sudo apt-get install -y clang clang-3.8 lldb-3.8 libicu-dev libtool libcurl4-openssl-dev libbsd-dev build-essential libssl-dev uuid-dev curl unzip | |
# Next create a ~/local directory for some tools that we'll download | |
cd | |
mkdir -p local |
The libdispatch is one of the most misused API due to the way it was presented to us when it was introduced and for many years after that, and due to the confusing documentation and API. This page is a compilation of important things to know if you're going to use this library. Many references are available at the end of this document pointing to comments from Apple's very own libdispatch maintainer (Pierre Habouzit).
My take-aways are:
You should create very few, long-lived, well-defined queues. These queues should be seen as execution contexts in your program (gui, background work, ...) that benefit from executing in parallel. An important thing to note is that if these queues are all active at once, you will get as many threads running. In most apps, you probably do not need to create more than 3 or 4 queues.
Go serial first, and as you find performance bottle necks, measure why, and if concurrency helps, apply with care, always validating under system pressure. Reuse