Chris Cinelli ChrisCinelli

I like building things that delight the user. Not enough space here... Check https://www.linkedin.com/in/criscinelli

ChrisCinelli / cachedRequest.js

Last active November 20, 2018 00:09

cache for npm request and elastic search

	var _request = require('request');

	const { stringify } = require('flatted/cjs');
	const LRU = require('lru-cache');
	const crypto = require('crypto');


	// Interface for cached requests
	class Cache {
	// opt to pass to LRU, h hash function for the key

ChrisCinelli / migrate-data.sh

Last active November 10, 2018 01:02

Migrate all indexes of Elastic Search from a cluster to another - It has less limirations then reindex when runinng with differnt ES versions

	#!/bin/bash
	# See https://gist.github.com/db1af03d007d2f64a44ff22f4633fe74 for more info

	# This script backup data from a ES instance to disk and create a xz archive with the command to restore it
	# You need to have jq ( https://stedolan.github.io/jq/ ) and elasticdump ( https://www.npmjs.com/package/elasticdump ) installed


	# source ES instance
	DEFAULT_ESR='http://source:9200' # Edit this
	ESR=${1:-$DEFAULT_ESR} # Or just use $1 to add the Elastic Search url

ChrisCinelli / split10m

Last active November 10, 2018 00:43

Split a file in pieces of 10Mb that can be easily reassembled with 'cat'

	#!/bin/bash
	# Split files in a bunch of 10Mb files and add .zip (even if they are not zip)
	# Why? They can be attached to a issue in Github and overcoming the ;-)
	# Use: split10m file
	# or tar cJf - folder_to_compress \| split10m
	gsplit -b 10m -d --additional-suffix=.zip ${1:--} ${2:-archive}

	# It can be reconstructed with just:
	# $ cat archive*.zip > originalfile
	# Or assuming that the file was a .tar.xz file, it can be extract directly:

ChrisCinelli / backup-data.sh

Last active September 29, 2023 16:30

Backup all indexes in Elastic Search (ES) in an archive

	#!/bin/bash
	# See https://gist.github.com/593100533a7dbb4474612f9adb8f8ff6 for more info

	# This script backup data from a ES instance to disk and create a xz archive with the command to restore it
	# You need to have jq ( https://stedolan.github.io/jq/ ) and elasticdump ( https://www.npmjs.com/package/elasticdump ) installed


	# source ES instance
	DEFAULT_ESR='http://locahost:9200' # Edit this
	ESR=${1:-$DEFAULT_ESR} # Or just use $1 to add the Elastic Search url

ChrisCinelli / index.js

Last active December 19, 2017 01:56

Fast string template with tolerance to undefined

	const _get = require('lodash/get');
	const regEx = /\{\s([a-zA-Z0-9\[\]\._]+)(\s\\|\s['"]([^\}\s]+)['"])?\s\}/g;


	/*
	f({a: 1, b: { c: 2, d: 3}}, '({a}, {b.c}, {c.d})') will output (1, 2, 3)
	*/

	module.exports = (obj, str) => str.replace(regEx, (match, p1, p2, p3) => _get(obj, p1) \|\| p3 \|\| '');

ChrisCinelli / create-flame-graph-on-elb-aws.sh

Last active November 9, 2021 05:56

Flame graphs on AWS on a ELB

	# Flame graph on EB AWS machines:
	# Check http://www.brendangregg.com/blog/2014-09-17/node-flame-graphs-on-linux.html

	# Change the run command to run the node process with:
	# $ node --perf_basic_prof_only_functions index.js

	ssh your.machine.net
	sudo yum install perf
	sudo sysctl kernel.kptr_restrict=0
	sudo sysctl kernel.perf_event_paranoid=0

ChrisCinelli / superagent.test.js

Created August 16, 2017 21:02

Superagent fail on 4xx with content-type:"text/plain" and a body

	// Related tp: https://github.com/visionmedia/superagent/issues/1263

	const agent = require("superagent");

	const express = require('express')
	const app = express()
	app.get('/', function (req, res) {
	res.status(400).end("not good");
	})
	var mockPort;

ChrisCinelli / fromTextToOneWordForLine.js

Created August 9, 2017 20:41

Convert text in one line of text for each line for faster comparison

	// Usage: node fromTextToOneWordForLine.js < infile >outfile
	// You can then use opendiff to find the real differences

	var fs = require('fs');
	var stdinBuffer = fs.readFileSync(0); // STDIN_FILENO = 0

	var text = stdinBuffer.toString();

	console.log(text.replace(/(\s\|[^a-z])+/gi, '\n'));

ChrisCinelli / video2gif.sh

Created July 19, 2017 16:52

video2gif with ffmpeg

	# Convert video to gif file. See:https://superuser.com/a/1154859
	# Usage: video2gif video_file (scale) (fps)
	video2gif() {
	ffmpeg -y -i "${1}" -vf fps=${3:-10},scale=${2:-320}:-1:flags=lanczos,palettegen "${1}.png"
	ffmpeg -i "${1}" -i "${1}.png" -filter_complex "fps=${3:-10},scale=${2:-320}:-1:flags=lanczos[x];[x][1:v]paletteuse" "${1}".gif
	rm "${1}.png"
	}

ChrisCinelli / index.html

Created May 26, 2017 19:17

A good testing boilerplate with console for React (Ex: with react-waypoint) - See https://codesandbox.io/s/qxyRGMlp3