Karsten Kroesch kkroesch

Software and Platform Architect with experience in modern web and enterprise software technologies. ∙ Python ∙ Rust ∙ Go ∙ Kubernetes

kkroesch / gallery.sh

Last active October 11, 2016 08:06

Minimalistic approach to create a gallery page from image directory.

	#!/bin/bash
	export COPYRIGHT="(c) 1967 J. Random User"

	[ -d thumbs ] \|\| mkdir thumbs & mogrify -format jpg -path thumbs -thumbnail 100x *.jpg
	#mogrify -fill white -undercolor '#00000080' -gravity South -annotate +0+5 '$COPYRIGHT' *.jpg

	for img in *.jpg;
	do
	#exif --ifd=0 --tag=0x010e --set-value='Holiday in Somewhere' -o $img $img
	TITLE=$(exif -m --ifd=0 --tag=0x010e $img)

kkroesch / isnat.sh

Created July 13, 2016 12:45

Figure out if your computer is behind NATing firewall.

	INTERFACE=$(ifconfig en0 \| grep 'inet ' \| cut -f2 \| awk '{ print $2}')
	PUBLIC=$(curl -s http://ifconfig.co)
	[ $INTERFACE = $PUBLIC ] \|\| echo NAT

kkroesch / asset_finder.py

Created June 30, 2016 10:34

Finds references to external scripts and stylesheets from HTML page and prints download instructions for those files.

	import sys
	import argparse
	from HTMLParser import HTMLParser

	file_list = []


	class AssetFinder(HTMLParser):

	def handle_starttag(self, tag, attrs):

kkroesch / index.htm

Created June 28, 2016 13:51

Angular Material Start

	<html lang="en" >

	<head>
	<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/angular_material/1.0.0/angular-material.min.css">
	<link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons">
	<style type="text/css">
	.location-item { padding: 0.5em; cursor: pointer; }
	.level-2 { padding-left: 1.5em; }
	.level-3 { padding-left: 2.5em; }
	.level-4 { padding-left: 3.5em; }

kkroesch / app.js

Last active April 18, 2016 12:12

Failsafe setting of NODE_PATH in scripts. Put this line before importing your own modules to avoid statements like `require('../../middleware')'.

process.env.NODE_PATH || (process.env.NODE_PATH = __dirname)

kkroesch / colors.py

Last active June 4, 2022 21:57

Color definitions for console output.


	DOUBLE_LINE = '=' * 80
	OUTPUT_TEMPLATE = "{0:32}{1:>6}"
	DEVICE_TEMPLATE = "{0:35}{1:22}{2:>12}"
	CHECK_SIGN = u'✔'.encode('utf-8')
	FAIL_SIGN = u'✘'.encode('utf-8')

	class Colors:
	""" Colors for console putput as ANSI code.

kkroesch / date.js

Created October 1, 2015 09:45

Calendar-related calculations.

	/*
	* Calendar calculations
	*
	* The following enhancements on the standard JavaScript Date object
	* allow advanced calculations for calendars, especially the
	* calculation of the calendar weeks.
	*
	* @author Karsten Kroesch
	*/

kkroesch / AbstractUndoTableModel.java

Created October 1, 2015 09:07

Base class to enable undo-support for JTable

	/*
	* Copyright © 2005 by Karsten Kroesch.
	*/

	import java.util.List;
	import java.awt.Toolkit;
	import java.awt.datatransfer.*;
	import java.io.IOException;
	import javax.swing.event.UndoableEditListener;
	import javax.swing.table.AbstractTableModel;

kkroesch / gaussian_elim.py

Created September 28, 2015 08:35 — forked from tkralphs/gaussian_elim.py

	import numpy as np

	def GEPP(A, b, doPricing = True):
	'''
	Gaussian elimination with partial pivoting.

	input: A is an n x n numpy matrix
	b is an n x 1 numpy array
	output: x is the solution of Ax=b
	with the entries permuted in

kkroesch / time-range

Last active August 29, 2015 14:24

time-range