jeremyben’s gists

jeremyben / myapp.service

Last active March 5, 2025 12:32

systemd socket activation

	# https://www.freedesktop.org/software/systemd/man/systemd.unit.html
	[Unit]
	Description=My App
	After=network.target

	# https://www.freedesktop.org/software/systemd/man/systemd.exec.html
	[Service]
	Type=simple
	# https://www.freedesktop.org/software/systemd/man/systemd.exec.html#WorkingDirectory=
	WorkingDirectory=-/srv/app/

jeremyben / jest-coverage-badges.ts

Last active January 26, 2022 05:38

Get shields.io badges for jest coverage.

	// Make sure you have json-summary as a coverage reporter in your jest config.
	// coverageReporters: ['json-summary', 'text', 'lcov']

	import { readFileSync, mkdirSync, writeFileSync } from 'fs'
	import { join } from 'path'
	import { get } from 'https'
	import { ok } from 'assert'

	Promise.resolve().then(async () => {
	const outputDir = join(process.cwd(), 'badges')

jeremyben / no-new.ts

Last active August 1, 2019 13:16

Make new keyword optional.

	/**
	* Gives a class constructor the possibility to be invoked
	* with or without the `new` keyword, like built-in constructors.
	*
	* @param class_ class whose constructor will be proxified.
	* @param constructorName if we need an accurate `constructor.name` property.
	*/
	export function makeNewOptional<C extends new (...args: any[]) => any>(class_: C, constructorName?: string) {
	type NoNew<T extends C> = (...args: ConstructorParameters<T>) => InstanceType<T>

jeremyben / ts-build-api.ts

Last active May 20, 2024 10:36

Typescript programmatic build with tsconfig.json (run with `ts-node -T`)

	import * as path from 'path'
	import ts from 'typescript'

	function build(
	override: {
	compilerOptions?: ts.CompilerOptions
	include?: string[]
	exclude?: string[]
	files?: string[]
	extends?: string

jeremyben / lerna-schema.json

Last active June 24, 2019 22:09

Lerna Schema (https://lerna.js.org/)

	{
	"$id": "https://lerna.js.org/",
	"type": "object",
	"properties": {
	"version": {
	"$id": "/properties/version",
	"type": "string",
	"description": "The current version of the repository.",
	"examples": [
	"1.1.3"

jeremyben / proper-fork-node.md

Last active August 9, 2023 02:09

Proper fork workflow for a node module repo that does'nt want to merge your perfectly fine pull request.

Clone your fork :

git clone [email protected]:YOU/FORK

jeremyben / _functions.scss

Created December 11, 2018 11:33

Sass Functions

	/**
	* Clamp number between min and max
	*/
	@function clamp($value, $min, $max) {
	@return if($value > $max, $max, if($value < $min, $min, $value));
	}

	/**
	* Get a list from all possible abbreviations of a string
	* Ex : abbr(yolo) => (y, yo, yol, yolo)

jeremyben / rxjs-operators-implementation.ts

Last active November 24, 2018 23:12

	// pipe's operator function maps an Observable<T> to an Observable<R>
	// lift's operator function maps an Observer<R> to an Observer<T>
	//
	// This is just another way to represent the idea of either:
	// building an Observable chain down from the source to the sink
	// or building an Observer chain up from the sink to the source

	//
	// Pipe Implementation
	//

jeremyben / express-assets-storage-proxy.ts

Created November 24, 2018 19:08

Express Proxy Requests for Local and Remote Service Parity

	// High availability apps require that no distinction be made between local and remote services.
	// Attached resources should be accessed by environment variables,
	// and in doing so allow you to swap out one attached resource for another.

	// Let's setup a reverse proxy that directs image path requests and routes them through a defined server URL.
	// By doing so, we decouple server requests for images which allows for easy switching
	// from locally served image assets to a CDN by simply updating an environment variable.

	import * as express from 'express'
	import * as proxy from 'express-http-proxy'

jeremyben / memoized-getter-define.ts

Last active January 5, 2019 19:54

	/**
	* Defines a getter on a specified object that will be created upon first use.
	*
	* https://developer.mozilla.org/en-US/docs/Mozilla/JavaScript_code_modules/XPCOMUtils.jsm#defineLazyGetter()
	* https://dxr.mozilla.org/mozilla-central/source/js/xpconnect/loader/XPCOMUtils.jsm#120
	*/
	function defineMemoizedGetter(object: any, prop: string, fn: Function) {
	let redefining = false

	Object.defineProperty(object, prop, {

Jeremy Bensimon jeremyben