CTimmerman

#!/usr/bin/perl



use Mysql;
use strict;
use vars qw($school_name);
use vars qw($pass);

require "./cgi-lib.pl";

CTimmerman

import itertools

# Conway's Really Simple Game of Life based on "Stop Writing Classes" PyCon 2012

def neighbors(point):
    x,y = point
    yield x + 1, y
    yield x - 1, y
    yield x, y + 1
    yield x, y - 1

CTimmerman

"""
A simple proxy server. Usage:

http://hostname:port/p/(URL to be proxied, minus protocol)

For example:

http://localhost:8080/p/www.google.com

"""

CTimmerman

Creating a Happy Git Environment on OS X

Step 1: Install Git

brew install git bash-completion

Configure things:

git config --global user.name "Your Name"

git config --global user.email "you@example.com"

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Python VS ES6 syntax comparison

Python syntax here : 2.7 - online REPL

Javascript ES6 via Babel transpilation - online REPL

Imports

import math

CTimmerman

import java.io.FileDescriptor;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintStream;

public class HelloWorld{
	private static HelloWorld instance;
    public static void main(String[] args){
        instantiateHelloWorldMainClassAndRun();

CTimmerman

# -*- coding: utf-8 -*-
from bottle import route, run


@route('/')
def index():
    return '<h1>Hello World/h1>'


run(host='localhost', port=8000)

CTimmerman

#!/usr/bin/env bash

echo "Benchmark for Fibonacci numbers with Python3, Cython and PyPy"

echo '
def fib(n):
    "Return the n-th Fibonacci number."
    i = 0
    a, b = 0, 1
    if n < 2:

CTimmerman

Revert the full commit

Sometimes you may want to undo a whole commit with all changes. Instead of going through all the changes manually, you can simply tell git to revert a commit, which does not even have to be the last one. Reverting a commit means to create a new commit that undoes all changes that were made in the bad commit. Just like above, the bad commit remains there, but it no longer affects the the current master and any future commits on top of it.

git revert {commit_id}'

About History Rewriting

Delete the last commit

Deleting the last commit is the easiest case. Let's say we have a remote origin with branch master that currently points to commit dd61ab32. We want to remove the top commit. Translated to git terminology, we want to force the master branch of the origin remote repository to the parent of dd61ab32:

CTimmerman

node {
    echo 'Results included as an inline comment exactly how they are returned as of Jenkins 2.121, with $BUILD_NUMBER = 1'
    echo 'No quotes, pipeline command in single quotes'
    sh 'echo $BUILD_NUMBER' // 1
    echo 'Double quotes are silently dropped'
    sh 'echo "$BUILD_NUMBER"' // 1
    echo 'Even escaped with a single backslash they are dropped'
    sh 'echo \"$BUILD_NUMBER\"' // 1
    echo 'Using two backslashes, the quotes are preserved'
    sh 'echo \\"$BUILD_NUMBER\\"' // "1"