MichaelDrogalis

I've been working with Apache Kafka for over 7 years. I inevitably find myself doing the same set of activities while I'm developing or working with someone else's system. Here's a set of Kafka productivity hacks for doing a few things way faster than you're probably doing them now. 🔥

• Show me all my Kafka topics and their partitions, replicas, and consumers
• Show me the contents of a topic
• Create a Kafka topic
• Produce messages to a Kafka topic
• Validate the schema of messages before producing to a topic
• Do all of this at a distance

Get the tools

oakes

How Clojure's documentation can leapfrog other languages

Summary

I made a documentation generator that cashes in on Clojure's dynamism. See the play-cljs docs (a ClojureScript game library) for an example of its output.

The Problem

Like many of you, I've often wondered what my final regret will be on my deathbed. My best guess came to me in a dream recently. I was walking across the charred earth of an apocalyptic future world, maneuvering around the remains of the less fortunate. I was startled to find a young girl, barely holding onto her life. She murmured something to me. I asked her to repeat it, and she said more loudly: "I...wish your Clojure projects didn't have such crappy documentation."

halgari

The question was asked why I (as a programmer who prefers dynamic languages) don't consider static types "worth it". Here
is a short list of what I would need from a type system for it to be truely useful to me: 

1) Full type inference. I would really prefer to be able to write: 

(defn concat-names [person]
  (assoc person :full-name (str (:first-name person)
                                (:second-name person))))

And have the compiler know that whatever type required and produced from this function was acceptible as long as the 

sunng87

(defn invoke-private-method [obj fn-name-string & args]
  (let [m (first (filter (fn [x] (.. x getName (equals fn-name-string)))
                   (.. obj getClass getDeclaredMethods)))]
    (. m (setAccessible true))
    (. m (invoke obj args))))

(defn private-field [obj fn-name-string]
  (let [m (.. obj getClass (getDeclaredField fn-name-string))]
    (. m (setAccessible true))
    (. m (get obj))))

pofider

# .ebextensions/01-ebs.config
commands:
  01clear-if-unmounted:
    command: if ! mount | grep /media/ebs_volume > /dev/nul; then rm -rf /media/ebs_volume; fi
  02attach-volume:
    command: aws ec2 attach-volume --region eu-central-1 --volume-id vol-ddb08e34 --instance-id $(curl -s http://169.254.169.254/latest/meta-data/instance-id) --device /dev/sdh
    ignoreErrors: true
  03wait:
    command: sleep 10
  04trymount:

awmichel

Docker Machine OSX Autostart

This is a simple launchd config that will start your default docker-machine on startup. You can customize the machine that is started by updating lines 11 and 16 with the correct machine name.

Install

1. Copy the file com.docker.machine.default.plist below to ~/Library/LaunchAgents/com.docker.machine.default.plist.
2. Run the following in a terminal: launchctl load ~/Library/LaunchAgents/com.docker.machine.default.plist
3. Profit!

haasn

Firefox bullshit removal

Updated: Just use qutebrowser (and disable javascript). The web is done for.

salomvary

import java.time.format.DateTimeFormatter;
import java.time.Instant;
import java.time.ZonedDateTime;
import java.time.ZoneId;
import java.time.ZoneOffset;

Instant.now();
// java.time.Instant = 2015-08-13T09:28:27.141Z

DateTimeFormatter.ISO_INSTANT.format(Instant.now());

karpathy

"""
This is a batched LSTM forward and backward pass
"""
import numpy as np
import code

class LSTM:
  
  @staticmethod
  def init(input_size, hidden_size, fancy_forget_bias_init = 3):

joelittlejohn

#!/bin/bash
for f in $(egrep -o -R "defn?-? [^ ]*" * --include '*.clj' | cut -d \  -f 2 | sort | uniq); do
    echo $f $(grep -R --include '*.clj' -- "$f" * | wc -l);
done | grep " 1$"