assafshomer

#!/bin/bash

# --------------------------------------------------------------------------------------------
# Installs Ruby 2.5 using rbenv/ruby-build on the Raspberry Pi (Raspbian)
#
# Run from the web:
#   bash <(curl -s https://gist.githubusercontent.com/blacktm/8302741/raw/install_ruby_rpi.sh)
# --------------------------------------------------------------------------------------------

# Welcome message

blha303

#!/usr/bin/env python3
import zlib
import os
import sys
import argparse

def crc32_file(filename):
    with open(filename, "rb") as f:
        return hex(zlib.crc32(f.read())).upper()[2:].zfill(8)

rasheedamir

package sample.producer.domain;

import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
import com.fasterxml.jackson.databind.annotation.JsonPOJOBuilder;
import lombok.AccessLevel;
import lombok.NoArgsConstructor;
import lombok.Value;

@Value /* to generate equals, hashCode, getters & toString ( immutable ) */
@NoArgsConstructor(force = true, access = AccessLevel.PACKAGE) /* just for dehydration! as default ctor is used to create object & then fields are set using refection! */

bkemper

While on a branch with a couple of commits, you can edit a commit with interactive rebase. This should be used sparingly and only on branches and never on master.

1. Checkout the branch

$ git checkout my-branch

2. Get the ref of the commit that you want to edit from the commit log. (e.g. 67b191fc62eda52b5b208cc4de50df7144a03171)

$ git log

jakubczaplicki

import sys
import logging
import logging.config

from flask import Flask
class LoggerConfig:
    dictConfig = {
        'version': 1,
        'disable_existing_loggers': False,
        'formatters': {

RatulSaha

#List traversal
range(start, stop, hop)
range(n) # [0,1,...,n-1]
range(1,n) # [1,...,n-1]
range(1,n,2) # [1,3,5,...,n-1] if n is even, or [1,3,5,...,n-2] if n is odd
range(n,-1,-1) # [n,n-1,n-2,...,0]
range(len(arr)) # Provides indices of an array arr
range(len(arr)-1,-1,-1) # Provides indices of arr backwards

# List slicing

bernhardschaefer

#!/bin/bash

# Minimum TODOs on a per job basis:
# 1. define name, application jar path, main class, queue and log4j-yarn.properties path
# 2. remove properties not applicable to your Spark version (Spark 1.x vs. Spark 2.x)
# 3. tweak num_executors, executor_memory (+ overhead), and backpressure settings

# the two most important settings:
num_executors=6
executor_memory=3g

ivanleoncz

#/usr/bin/python3
""" Demonstration of logging feature for a Flask App. """

from logging.handlers import RotatingFileHandler
from flask import Flask, request, jsonify
from time import strftime

__author__ = "@ivanleoncz"

import logging

eeichinger

Examples for getting Jackson and Lombok to work together to create immutable data types.

Demonstrates use of:

• Nullable Types
• Optional
• immutable java.util.List
• immutable array
• validating custom types on instantiate/unmarshalling
• use & customize Lombok-@Builder with Jackson

brock

# This is just a cheat sheet:

# On production
sudo -u postgres pg_dump database | gzip -9 > database.sql.gz

# On local
scp -C production:~/database.sql.gz
dropdb database && createdb database
gunzip < database.sql.gz | psql database