JTBrinkmann’s gists

JTBrinkmann / Tree.tsx

Last active October 20, 2021 13:58

Chakra UI component to render a javascript object, similar to console.log in browsers' devtools

	import { ChevronDownIcon, ChevronRightIcon } from "@chakra-ui/icons"
	import { Box, chakra, Icon, useDisclosure } from "@chakra-ui/react"
	import { useMemo } from "react"

	export const json = (obj: any) =>
	obj === undefined ? "undefined" : JSON.stringify(obj, null, 2)

	export const closeBrackets = (str: string) =>
	str.replace(
	/[\(\[\{]+$/,

JTBrinkmann / cwrsync.ps1

Last active March 15, 2023 13:57

wrapper to make cwrsync and DeltaCopy's rsync work, while allowing to have a different ssh.exe in your PATH

	rsync.exe --rsh="/bin/ssh" @args
	# tested 2023-03-15, SSH keys should also work out of the box
	# for using a different port, do e.g. `--rsh="/bin/ssh -p 1234"`

JTBrinkmann / link.springer.com download links in search

Created February 26, 2021 17:31

	// ==UserScript==
	// @name Springer Link add download-URLs to search results
	// @version 0.1
	// @author J.-T. Brinkmann
	// @include https://link.springer.com/search*
	// @grant none
	// ==/UserScript==

	(function() {
	'use strict';

JTBrinkmann / searchParamsToJson.js

Last active November 1, 2021 10:03

javascript parse URL search params or FormData as an object

	// convert WITHOUT considering multiple values
	// every value will be a string
	const parseSearchParams = (data) => [...new URLSearchParams(data).entries()].reduce((acc,[key, val]) => (acc[key]=val,acc), {})

	// convert WITH considering multiple values
	// every value will be a either a string or an array of strings
	const parseSearchParamsMultiple = (data) => [...new URLSearchParams(data)].reduce((acc,[key, val]) => (acc[key] = acc[key]?[].concat(acc[key], val) : val, acc), {})

	// test cases
	const testSingle = "a=1&b=2&c=3"

JTBrinkmann / destruct-alternatives.sh

Last active June 24, 2024 23:13

bash destructuring assignment for arrays

	#!/bin/bash
	## Alternative Versions

	# only allows space separated variable name list
	# example: destruct a b c = arr
	destruct() {
	for ((i=1;i < $#-1; ++i)) do
	local value_adress="${!#}[$i-1]"
	declare -g "${!i}=${!value_adress}"
	done

JTBrinkmann / youtube-anon-playlist-creator.html

Created June 6, 2020 20:39

very small webapp to create an anonymous youtube playlist from a few videos

	<!DOCTYPE html>
	<body style="font-family: sans-serif;">
	<p>
	<label>
	Youtube URLs:<br>
	<textarea id="input" style="box-sizing: content-box; width: 100%; min-height: 8em; line-height: 1.4em; padding: 0.2em"></textarea>
	</label>
	</p>
	<p>
	<label>

JTBrinkmann / youtube-lazyload-embed-generator.html

Created June 4, 2020 11:28

small web-tool to create embed code for lazy loaded youtube embeds

	<!DOCTYPE html>
	<body style="font-family: sans-serif">
	<form>
	<label>
	Video-URL or ID:
	<input id="videourl" value="3q_iqrvnC_4" style="width: 40em" />
	</label>
	<p id="warning" style="visibility: hidden; background: yellow; font-weight: bold;">
	Warning: the extracted video id seems unusual
	</p>

JTBrinkmann / ecampus-print-adjust.js

Created May 26, 2020 15:09

javascript:$('body').css('color-adjust','exact');fetch('/css/bootstrap.min.css').then(r=>r.text()).then(b => { b = b.replace(/@media\s+print\s*\{[\s\S]*?\}\s*\}/g, '').replace(/url\(\./g,'url(/css/.'); $a = $('link[href="/css/bootstrap.min.css"]').attr('media', 'none'); $('<style>').text(b).insertAfter($a) })

JTBrinkmann / convert_powerpoint_to_video.ps1

Last active April 29, 2020 15:58

	param (
	[string] $inFilePath,
	[string] $outFilePath = $false
	)

	# older PowerPoint versions don't support exporting to MP4 (e.g. 2010)
	# use WMV as fallback and if necessary convert via ffmpeg (not part of this script)
	if ([Microsoft.Office.Interop.PowerPoint.PpSaveAsFileType]::ppSaveAsMP4) {
	$outExt = "mp4"
	$outExtType = [Microsoft.Office.Interop.PowerPoint.PpSaveAsFileType]::ppSaveAsMP4

JTBrinkmann / convert-videos.ps1

Created April 20, 2020 13:25

	$inputs = ls -R -F *.mp4
	$i = 0
	for ($input in $inputs) {
	Write-Progress -Activity "Converting Videos" -Status "$(++$i / $inputs.Length)% $($input.Name)" -PercentComplete $($i / $inputs.Length)
	$output = Join-Path "..\compressed" ($_ \| Resolve-Path -Relative)
	if (Test-Path $output) {
	echo "already exists: $output"
	} else {
	mkdir ($output \| Split-Path)
	ffmpeg -hide_banner -i $input -movflags faststart -r 25 -vf scale=-1:720 -tune stillimage $output

Jan-T. Brinkmann JTBrinkmann