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R.J. (Steinert) Corwin rjcorwin

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rjcorwin / replace-pattern-in-filenames.sh
Created June 29, 2018 18:42
for f in *; do mv "$f" "$(echo "$f" | sed s/$1/$2/)"; done
@rjcorwin
rjcorwin / promisified-exec-in-nodejs.js
Created June 25, 2018 15:41
#!/usr/bin/env node
const util = require('util');
const exec = util.promisify(require('child_process').exec)
@rjcorwin
rjcorwin / batch-processing-class-in-node-js-example.js
Last active June 6, 2018 11:16
const EventEmitter = require('events');
const sleep = (milliseconds) => new Promise((res) => setTimeout(() => res(true), milliseconds))
class PouchDbChangesFeedWorker extends EventEmitter {
// @TODO Instead of napTime, we could subscribe to the changes feed and wake on activity.
constructor (feeds = [], changeProcessor, PouchDB, batchSize = 5, sleepTimeAfterBatchProcessed = 0, sleepTimeAfterNoChanges = 3000, batchLimit = undefined) {
super()
this._feeds = feeds
this._changeProcessor = changeProcessor
@rjcorwin
rjcorwin / awaitable-sleep-function-one-liner.js
Created June 4, 2018 16:34
const sleep = (milliseconds) => new Promise((res) => setTimeout(() => res(true), milliseconds))
@rjcorwin
rjcorwin / Find files with matching string in title and move to another directory.sh
Created May 27, 2018 17:59
#/bin/bash
# First param is the string to match, second is the destination directory.
ls -d -1 $PWD/* | sed 's/\ /\\\ /g' | sed 's/\*/\\\*/g' | sed 's/\#/\\\#/g' | sed "s/\'/\\\'/g" | grep $1 | xargs -I {} cp "{}" $2
@rjcorwin
rjcorwin / scrape-website-and-dat-share.sh
Created May 2, 2018 16:28
wget --recursive --no-clobber --page-requisites --html-extension --convert-links --domains $1 http://$1
cd $1
dat share
@rjcorwin
rjcorwin / rjsteinert-bunsen.txt
Created April 9, 2018 20:40
dat://3c2f7c59b4bae4cb10d11effa65d3b144f1e0c06416406c0d39e9d1dabbbe76b/
@rjcorwin
rjcorwin / dynamic-path-to-static-assets-in-express.js
Last active April 7, 2018 10:49
/*
Create a folder called `folder-of-code` and then inside of that folder put
other folders like foo and bar with different assets in them. Then run this
server and notice how the static directory served will change depending on
wether you hit `http://foo.lvh.me` and `http://bar.lvh.me`.
Note you could rework this example to change the folder context depending on
something in `req.params.*` but for this example we are using the wildcard
@rjcorwin
rjcorwin / async-await-exec.js
Last active April 7, 2018 00:17
const util = require('util')
const exec = util.promisify(require('child_process').exec)
async example() {
console.log(await exec('ls'))
console.log(await exec('ls'))
}
example()
@rjcorwin
rjcorwin / cordova-httpd-example.html
Created March 8, 2018 17:45
<!DOCTYPE html>
<!--
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements. See the NOTICE file
distributed with this work for additional information
regarding copyright ownership. The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License. You may obtain a copy of the License at