mariotacke

Spotify AutoHotkey Script

This script makes use of the Numpad to control media players and volume on your system.

Usage

• Install AutoHotkey
• Right-click .ahk script
• Compile Script
• Start executable

Hotkeys

mariotacke

Pattern file: /etc/logstash/patterns/nginx Logstash shipper: /etc/logstash/conf.d/shipper.conf

Nginx http log module: http://nginx.org/en/docs/http/ngx_http_log_module.html

mariotacke

Gulp replace to invalidate cache

This demo replaces the string @@VERSION with the current unix timestamp when building with gulp. @@VERSION is a query parameter to bundle.js. To avoid caching bundle.js, we add the timestamp to it during each build.

Usage

npm install
npm run build

mariotacke

#!/bin/sh
### BEGIN INIT INFO
# Provides:          TeamCity Build Agent
# Required-Start:    $remote_fs $syslog
# Required-Stop:     $remote_fs $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Start build agent daemon at boot time
# Description:       Enable service provided by daemon.
### END INIT INFO

mariotacke

const charset = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789@#$%&()/\\+<>';
const randomCharacter = charset[Math.floor(Math.random() * charset.length)];

outputContext.fillStyle = `rgb(${r},${g},${b})`;
outputContext.fillText(randomCharacter, x, y);

mariotacke

for (let y = 0; y < height; y += fontHeight) {
  for (let x = 0; x < width; x += fontWidth) {
    const frameSection = hiddenContext.getImageData(x, y, fontWidth, fontHeight);
    const { r, g, b } = getAverageRGB(frameSection);

    outputContext.fillStyle = `rgb(${r},${g},${b})`;
    outputContext.fillText('@', x, y);
  }
}

mariotacke

const getAverageRGB = (frame) => {
  const length = frame.data.length / 4;

  let r = 0;
  let g = 0;
  let b = 0;

  for (let i = 0; i < length; i++) {
    r += frame.data[i * 4 + 0];
    g += frame.data[i * 4 + 1];

mariotacke

const fontHeight = 12;

if (width && height) {
  // canvas setup removed for brevity
  hiddenContext.drawImage(video, 0, 0, width, height);

  outputContext.textBaseline = 'top';
  outputContext.font = `${fontHeight}px Consolas`;

  const text = outputContext.measureText('@');

mariotacke

const video = document.querySelector('#camera-stream');
const hiddenCanvas = document.querySelector('#hidden-canvas');
const outputCanvas = document.querySelector('#output-canvas');
const hiddenContext = hiddenCanvas.getContext('2d');
const outputContext = outputCanvas.getContext('2d');

const processFrame = () => {
  const { videoWidth: width, videoHeight: height } = video;

  if (width && height) {

mariotacke

const constraints = {
  video: {
    width: 512,
    height: 512,
  },
};

navigator.getUserMedia(constraints, function (stream) {
  video.srcObject = stream;
  video.play();