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@guenter
guenter / move_to_rds.rb
Created November 11, 2010 02:14
A quick and dirty script to move a database into Amazon RDS (or any other database). Can transfer part of the data beforehand.
require 'fileutils'
start_time = Time.now
SOURCE_DB = {
:name => 'db_name',
:user => 'db_user',
:password => 'db_pass',
:host => 'localhost'
@tmiz
tmiz / build_openssl_dylib.sh
Last active November 1, 2023 13:18
Build latest OpenSSL Universal Binary on OSX
#!/bin/bash
OPENSSL_VERSION="1.0.1g"
curl -O http://www.openssl.org/source/openssl-$OPENSSL_VERSION.tar.gz
tar -xvzf openssl-$OPENSSL_VERSION.tar.gz
mv openssl-$OPENSSL_VERSION openssl_i386
tar -xvzf openssl-$OPENSSL_VERSION.tar.gz
mv openssl-$OPENSSL_VERSION openssl_x86_64
cd openssl_i386
@hellerbarde
hellerbarde / latency.markdown
Created May 31, 2012 13:16 — forked from jboner/latency.txt
Latency numbers every programmer should know

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

@sekati
sekati / xcode-build-bump.sh
Created July 24, 2012 20:44
Xcode Auto-increment Build & Version Numbers
# xcode-build-bump.sh
# @desc Auto-increment the build number every time the project is run.
# @usage
# 1. Select: your Target in Xcode
# 2. Select: Build Phases Tab
# 3. Select: Add Build Phase -> Add Run Script
# 4. Paste code below in to new "Run Script" section
# 5. Drag the "Run Script" below "Link Binaries With Libraries"
# 6. Insure that your starting build number is set to a whole integer and not a float (e.g. 1, not 1.0)
@masonforest
masonforest / gist:4048732
Created November 9, 2012 22:28
Installing a Gem on Heroku from a Private GitHub Repo

Installing a Gem on Heroku from a Private GitHub Repo

Sometimes you want to use a gem on Heroku that is in a private repository on GitHub.

Using git over http you can authenticate to GitHub using basic authentication. However, we don't want to embed usernames and passwords in Gemfiles. Instead, we can use authentication tokens.

  1. Get an OAuth Token from GitHub

First you will need to get an OAuth Token from GitHub using your own username and "note"

@steipete
steipete / PSPDFUIKitMainThreadGuard.m
Last active May 27, 2024 12:11
This is a guard that tracks down UIKit access on threads other than main. This snippet is taken from the commercial iOS PDF framework http://pspdfkit.com, but relicensed under MIT. Works because a lot of calls internally call setNeedsDisplay or setNeedsLayout. Won't catch everything, but it's very lightweight and usually does the job.You might n…
// Taken from the commercial iOS PDF framework http://pspdfkit.com.
// Copyright (c) 2014 Peter Steinberger, PSPDFKit GmbH. All rights reserved.
// Licensed under MIT (http://opensource.org/licenses/MIT)
//
// You should only use this in debug builds. It doesn't use private API, but I wouldn't ship it.
// PLEASE DUPE rdar://27192338 (https://openradar.appspot.com/27192338) if you would like to see this in UIKit.
#import <objc/runtime.h>
#import <objc/message.h>
@alejandro-isaza
alejandro-isaza / gist:5717438
Last active June 22, 2017 09:51
UIImage category to normalize image orientation by rotating an image so that it's orientation is UIImageOrientationUp. Based on http://stackoverflow.com/questions/5427656/ios-uiimagepickercontroller-result-image-orientation-after-upload/5427890#10611036
@interface UIImage (Orientation)
- (UIImage*)imageByNormalizingOrientation;
@end
@implementation UIImage (Orientation)
- (UIImage*)imageByNormalizingOrientation {
@BennettSmith
BennettSmith / ..build-protbuf-2.5.0.md
Last active October 15, 2022 18:41
Script used to build Google Protobuf 2.5.0 for use with Xcode 5 / iOS 7. Builds all supported architectures and produces a universal binary static library.

Google Protobuf 2.5.0 - Mac OS X and iOS Support

The script in this gist will help you buid the Google Protobuf library for use with Mac OS X and iOS. Other methods (such as homebrew or direct compilation) have issues that prevent their use. The libraries built by this script are universal and support all iOS device architectures including the simluator.

Get the Script

The easiest way to use this script is to simply clone the gist onto your

@makenova
makenova / Difference between debounce and throttle.md
Last active February 22, 2023 03:09
Javascript function debounce and throttle

Difference between Debounce and Throttle

Debounce

Debounce a function when you want it to execute only once after a defined interval of time. If the event occurs multiple times within the interval, the interval is reset each time.
Example A user is typing into an input field and you want to execute a function, such as a call to the server, only when the user stops typing for a certain interval, such as 500ms.

Throttle

@endSly
endSly / sslconnect.c
Last active May 13, 2020 16:35
Example code for building a SSL connection and retrieving the server certificate
/* ------------------------------------------------------------ *
* file: sslconnect.c *
* purpose: Example code for building a SSL connection and *
* retrieving the server certificate *
* author: 06/12/2012 Frank4DD *
* *
* gcc -lssl -lcrypto -o sslconnect sslconnect.c *
* ------------------------------------------------------------ */
#include <sys/socket.h>