christophemarois

Cloudflare is a better and free ngrok. With a domain that uses it, set it up like this

1. Setup a tunnel

cloudflared tunnel login
cloudflared tunnel create test
cloudflared tunnel route dns test test.christophemarois.com

christophemarois

/** Transform the password part of a connection string URL into [redacted].
 * Useful for logging. */
export function redactPasswordFromUrl(url: string) {
  return url.replace(/^([^:]+):\/\/([^:]*):([^@]+)@/, '$1://$2:[redacted]@')
}

christophemarois

1. Create an app-specific password for iCloud account (check Bitwarden notes)
2. Use https://github.com/midnightmonster/icloud-calendar-urls to get your calendar's secret URL

curl -s https://raw.githubusercontent.com/midnightmonster/icloud-calendar-urls/master/icloud_calendar_urls | bash

3. In thunderbird, add calendar with your icloud username, secret url and app-specific password

christophemarois

Monitor in Node (PerformanceObserver is not yet implemented in Bun. in bun 1.0.3)

import { collectDefaultMetrics, register } from 'prom-client'

if (req.method === 'GET' && pathname === '/metrics/') {
  return new Response(await register.metrics(), {
    headers: {
      'Content-Type': register.contentType,
 },

christophemarois

/** Array where are elements are expected to be unique by a custom key */
export function zUniqueArray<
  ArrSchema extends z.ZodArray<z.ZodTypeAny, 'many'>,
  UniqueVal,
>(
  uniqueBy: (item: z.infer<ArrSchema>[number]) => UniqueVal,
  schema: ArrSchema,
) {
  return schema.superRefine((items, ctx) => {
    const seen = new Set<UniqueVal>()

christophemarois

# list changed files in a branch compared to its base branch
# usage: git_list_branch_changes [base_branch?] | xargs echo
function git_list_branch_changes {
  local BASE_BRANCH="${1:-main}"
  (git diff --diff-filter=MA --name-only $BASE_BRANCH... && git status --short --porcelain | awk '{print $2}') | sort -u
}

christophemarois

import { parseArgs } from 'node:util'

const args = parseArgs({
  options: { env: { type: 'string' }, dryRun: { type: 'boolean' } },
})

christophemarois

// will act --inspect-brk, but only when evaluated
// works inside the main thread, a worker thread
// also works with typescript sources, built-in support in tsx
require('node:inspector').open(undefined, undefined, true)

christophemarois

import wretch, { WretchResponse } from 'wretch'
import fs from 'node:fs'

async function streamWretchResponseToFile(
  res: WretchResponse,
  writable: fs.WriteStream,
) {
  if (!res.body) {
    throw new Error('Response body is null')
  }

christophemarois

// Type inference does not work yet
export function zMapKeys<
  Shape extends z.ZodRawShape,
  T extends z.ZodObject<Shape>,
  Key extends keyof Shape,
  MapFn extends <T extends Key>(v: Shape[T], k: T) => PropertyKey,
>(schema: T, renameMap: Record<Key, PropertyKey | MapFn>) {
  const keys = Object.keys(schema.shape) as Key[]
  return schema.transform((input) => {
    let output: Record<PropertyKey, any> = {}