julienba

Hammock Driven Development

Taken from Rich Hickey's day 2 keynote at Clojure Conj 2010.

Notes

julienba

{"spec": "(spec-tools.core/spec {:spec (clojure.spec.alpha/keys :req-un [:app.route.api/x :app.route.api/y]), :type :map, :leaf? false})",
 "problems":[{"path":["y"],"pred":"clojure.core/int?","val":"a","via":["app.route.api/plus-request","app.route.api/y"],"in":["y"]}],
 "type":"reitit.coercion/request-coercion",
 "coercion":"spec",
 "value":{"x":"2","y":"a"},
 "in":["request","query-params"]}

julienba

# Your keymap
#
# Atom keymaps work similarly to style sheets. Just as style sheets use
# selectors to apply styles to elements, Atom keymaps use selectors to associate
# keystrokes with events in specific contexts. Unlike style sheets however,
# each selector can only be declared once.
#
# You can create a new keybinding in this file by typing "key" and then hitting
# tab.
#

julienba

;; For inspecting datastructure:
;; https://clojure.github.io/clojure/clojure.inspector-api.html#clojure.inspector/inspect-tree

(defn repl-settings!
  []
  ;; Watch out -- this affects `pr-str`
  (do (alter-var-root #'*print-length* (constantly 20))
      (alter-var-root #'*print-level* (constantly 6))))

;; A library that can be used to render typical Clojure data structures using Graphviz.

julienba

FWIW: I didn't produce the content present here. I've just copy-pasted it from somewhere over the Internet, but I cannot remember exactly the original source. I was also not able to find the author's name, so I cannot give him/her the proper credit.

---

Effective Engineer - Notes

• By Edmond Lau
• Highly Recommended 👍
• http://www.theeffectiveengineer.com/

What's an Effective Engineer?

julienba

CREATE EXTERNAL TABLE IF NOT EXISTS checkins (
    id int
    user_id int,
    venue_id int,
    date timestamp
    )
ROW FORMAT SERDE 
  'org.openx.data.jsonserde.JsonSerDe' 
LOCATION
  's3://YOUR_BUCKET/checkins'

julienba

{
  "AWSTemplateFormatVersion": "2010-09-09",
  "Description": "Auto scaling deploy example",
  "Parameters": {
    "AvailabilityZone": {
      "Type": "String",
      "Default": "us-west-1a"
    },
    "ImageId": {
      "Type": "String"

julienba

FROM ubuntu
MAINTAINER "Bobby Wilson"
RUN apt-get update
RUN apt-get install curl -y
RUN cd /usr/local; curl -O http://nodejs.org/dist/v0.10.16/node-v0.10.16-linux-x64.tar.gz
RUN cd /usr/local; tar xzf node-v0.10.16-linux-x64.tar.gz
ENV PATH /usr/local/bin:/usr/sbin:/bin:/usr/local/node-v0.10.16-linux-x64/bin
ADD . /app
EXPOSE 8000:8000
ENV PORT 8000

julienba

$ go install code.google.com/p/go.tools/cmd/vet                                                                                                                                                                                                
go install code.google.com/p/go.tools/cmd/vet: open /usr/local/go/pkg/tool/linux_amd64/vet: permission denied

$ sudo su - root
# GOPATH=/tmp/go /usr/local/go/bin/go get code.google.com/p/go.tools/cmd/cover
# GOPATH=/tmp/go /usr/local/go/bin/go get code.google.com/p/go.tools/cmd/vet
# rm -r /tmp/go
# exit

julienba

# define some variables
variable "aws_ubuntu_ami" {
	default = "ami-972444ad"
}

variable "aws_keypair" {
	default = "xxxx"
}

# AWS account details