defclass

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

---

defclass

Debian

cd /tmp
# 编译环境准备&安装依赖包
apt-get install --no-install-recommends build-essential autoconf libtool libssl-dev libpcre3-dev asciidoc xmlto git
# 克隆源码
git clone --recursive https://github.com/shadowsocks/shadowsocks-libev.git
# 开始编译

defclass

(defn sha1-str [s]
  (->> (-> "sha1"
           java.security.MessageDigest/getInstance
           (.digest (.getBytes s)))
       (map #(.substring
              (Integer/toString
               (+ (bit-and % 0xff) 0x100) 16) 1))
       (apply str)))

defclass

######################
## shadowsocks-libev
######################

# install dependencies
yum install epel-release -y
yum install gcc gettext autoconf libtool automake make pcre-devel asciidoc xmlto udns-devel libev-devel -y

# install shadowsocks-libev
cd /etc/yum.repos.d/

defclass

(ns x.y
  (:use [plumbing.core]) ;; Just for the map-vals
  (:require [clojure.walk :refer [postwalk prewalk prewalk-demo postwalk-demo]]
            [clojure.core.match :refer [match]]
            [schema.utils :refer [named-error-explain validation-error-explain]]
            [schema.core :as s])
  (:import (schema.utils NamedError ValidationError)))

;; Partially FROM:
;; https://github.com/puppetlabs/clj-schema-tools

defclass

#!/usr/bin/env python
# Reflects the requests from HTTP methods GET, POST, PUT, and DELETE
# Written by Nathan Hamiel (2010)

from BaseHTTPServer import HTTPServer, BaseHTTPRequestHandler
from optparse import OptionParser

class RequestHandler(BaseHTTPRequestHandler):
    
    def do_GET(self):

defclass

# These examples assume you have a container currently running.

# 1 Pipe from a file
sudo docker exec --interactive CONTAINER_NAME /bin/bash < the_beginning.sh | tee the_beginning_output.txt`

#2a Pipe by piping
echo "echo This is how we pipe to docker exec" | sudo docker exec --interactive CONTAINER_NAME /bin/bash - 

defclass

#!/bin/bash

readonly DB_FILE="$(pwd)/images.db"
readonly IMG_DIR="$(pwd)/images"

save-images() {
  echo "Create ${DB_FILE}"
  echo "$(docker images|grep -v 'IMAGE ID'|awk '{printf("%s %s %s\n", $1, $2, $3)}'|column -t)" > "${DB_FILE}"
  
  echo "Read ${DB_FILE}"

defclass

tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a

defclass

#! /bin/sh
### BEGIN INIT INFO
# Provides:          supervisord
# Required-Start:    $remote_fs
# Required-Stop:     $remote_fs
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Example initscript
# Description:       This file should be used to construct scripts to be
#                    placed in /etc/init.d.