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ralfebert /
Last active Jul 29, 2019
Export images from Sketch to xcasset (by @ryangomba)
#!/usr/bin/env python
import os
import sys
import subprocess
import shutil
import json
import re
import time
from distutils.spawn import find_executable
ralfebert / CompareImages.swift
Last active Feb 28, 2018 — forked from SheffieldKevin/compareimages.swift
A couple of swift functions for comparing two CGImage using CIImage in OS X
View CompareImages.swift
import CoreGraphics
import CoreImage
func imageMetadataString(image: CGImage) -> String {
return "\(image.width)x\(image.height) bitsPerComponent:\(image.bitsPerComponent) bytesPerRow:\(image.bytesPerRow) bitsPerPixel:\(image.bitsPerPixel)"
@brief Returns the maximum difference of pixel values in the image.
@discussion Assumes doImagesHaveSameMeta has already returned true on
ralfebert / generate_storyboard_constants.rb
Last active May 29, 2019
Generate Swift constants for Xcode storyboards containing cell reuse identifiers, segue identifiers and storyboard identifier. More information:
View generate_storyboard_constants.rb
#!/usr/bin/env ruby
require 'nokogiri'
def show_usage(msg = nil)
puts "#{msg}\n\n" if msg
puts "Usage:\n\t#{$PROGRAM_NAME} [storyboard_file]"
ralfebert / xcode_set_development_language_de.rb
Last active Sep 25, 2019
Ruby script that uses cocoapods Xcodeproj to set development_region / known_regions of an Xcode project to German
View xcode_set_development_language_de.rb
#!/usr/bin/env ruby
require 'fileutils'
require 'xcodeproj'
unless ARGV.count == 2
puts "Usage: xcode_set_development_region.rb [project] [region]"
View 0001-Fix-for-844-Incompatibility-haml-4.0.6-sprockets-3.0.patch
From 5366b677f1f7a1053de5904f96ba5108ffaf8953 Mon Sep 17 00:00:00 2001
From: Ralf Ebert <>
Date: Thu, 7 May 2015 23:33:01 +0200
Subject: [PATCH] Fix for #844: Incompatibility haml (4.0.6) -> sprockets
(3.0.3) causing error 'wrong number of arguments' for inline :sass filter in
haml template
lib/haml/sass_rails_filter.rb | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
ralfebert / swift-kvo-example.swift
Last active Mar 10, 2016 — forked from correia/swift-kvo-example.swift
Swift 1.1: dynamic for observable properties neccessary, observeValueForKeyPath signature changed
View swift-kvo-example.swift
// Swift-KVO
// Created by Jim Correia on 6/5/14.
// Copyright (c) Jim Correia. All rights reserved.
// Update: 6/17/2014
// KVOContext has gone away; use the same idiom you'd use from Objective-C for the context
View gist:6579711
git config --global alias.lg "log --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr %an)%Creset' --abbrev-commit --date=relative"
ralfebert / gist:5425624
Created Apr 20, 2013
git alias.clear resets working tree to HEAD
View gist:5425624
git config --global alias.clear '!git reset --hard;git clean -fd'
ralfebert / gist:5382822
Last active Dec 16, 2015
git config core.editor
View gist:5382822
git config --global core.editor "nano -Y patch"
git config --global core.editor "'C:\Program Files (x86)\Notepad++\notepad++.exe' \
-multiInst -notabbar -nosession -noPlugin"
git config --global core.editor "gedit -w -s"
git config --global core.editor "mate -w"
ralfebert / values.gnuplot
Created Apr 4, 2013
Plotting and fitting values to a linear equation from CSV data with gnuplot
View values.gnuplot
set datafile separator ';'
set terminal png
set output 'values.png'
f(x) = a*x + b
fit f(x) 'values.csv' using 1:2 via a, b
plot 'values.csv' using 1:2, f(x) title sprintf('%.2fx + %.2f', a, b)
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