kristopherjohnson

#!/bin/bash
#
# Given a source image, create icons in all sizes needed for an iOS app icon.
# See <https://developer.apple.com/library/ios/qa/qa1686/_index.html> for details.
#
# First (required) argument is path to source file.
#
# Second (optional) argument is the prefix to be used for the output files.
# If not specified, defaults to "app_icon_".
# 

kristopherjohnson

# Get the current git branch name
git-branch-name() {
    git symbolic-ref --short HEAD
}

# Push new branch to origin and set up tracking
git-push-new-branch() {
    git push -u origin $(git-branch-name)
}

kristopherjohnson

public sealed class TrulyObservableCollection<T> : ObservableCollection<T>
    where T : INotifyPropertyChanged
{
    public TrulyObservableCollection()
    {
        CollectionChanged += FullObservableCollectionCollectionChanged;
    }

    public TrulyObservableCollection(IEnumerable<T> pItems) : this()
    {

kristopherjohnson

private let onesSymbols     = ["", "I", "II", "III", "IV", "V", "VI", "VII", "VIII", "IX"]
private let tensSymbols     = ["", "X", "XX", "XXX", "XL", "L", "LX", "LXX", "LXXX", "XC"]
private let hundredsSymbols = ["", "C", "CC", "CCC", "CD", "D", "DC", "DCC", "DCCC", "CM"]

/// Generate Roman numeral representation of a value.
///
/// - parameter value: Numeric value to be represented.
/// - returns: `String` (possibly empty)
public func romanNumeralForValue(value: Int) -> String {
    if value <= 0 {

kristopherjohnson

# Generate a backtrace string for given exception.
# Generated string is a series of lines, each beginning with a tab and "at ".
def pretty_backtrace(exception)
  "\tat #{exception.backtrace.join("\n\tat ")}"
end

# Generate a string containing exception message followed by backtrace.
def pretty_exception(exception)
  "#{exception.message}\n#{pretty_backtrace(exception)}"
end

kristopherjohnson

# Return 'YYYY-MM-DD HH:MM:SS' string for current time, using local timezone.
def timestamp()
    Time.now.strftime '%Y-%m-%d %H:%M:%S'
end

kristopherjohnson

#!/usr/bin/swift

import Cocoa

let stdin = FileHandle.standardInput
let stdout = FileHandle.standardOutput
let stderr = FileHandle.standardError

do {
    let inputData = stdin.readDataToEndOfFile()

kristopherjohnson

// hexdump.swift
//
// This file contains library functions for generating hex dumps.
//
// The functions intended for client use are
//
// - `printHexDumpForBytes(_:)`
// - `printHexDumpForStandardInput()`
// - `hexDumpStringForBytes(_:)`
// - `logHexDumpForBytes(_:)`

kristopherjohnson

# If in a Mercurial repository, output "<branch:bookmark/qtop+*->", where
# "branch" is the current branch
# ":bookmark" is the active bookmark, if any
# "/qtop" is the current patch, if any
# "+" if any files have been added
# "-" if any files have been removed
# "*" if any files have been modified
# "?" if any files exist that have not been added
#
# If not in a Mercurial repository, produce no output.

kristopherjohnson

bool mutexIsNew;
using (System.Threading.Mutex m =
  new System.Threading.Mutex(true, uniqueName, out mutexIsNew))
{
  if (mutexIsNew)
    // This is the first instance. Run the application.
  else
    // There is already an instance running. Exit!
}