wmertens

#!/usr/bin/env bash
# 
# This script wraps a command with a read lock on given SQLite databases
# Example: wrap-sqlite-backup.sh *.sqlite3 -- tar cvzf backup.tgz *.sqlite3
#
# Note that it doesn't check for errors, so it really only works in WAL mode.
# Updates that read from ${COPROC[0]} to check errors welcome.
# 
# Wout.Mertens@gmail.com
# https://gist.github.com/wmertens/4df207197074f9cb93f003c1cb723b4c

wmertens

// Require this in your program, or load it with node's -r flag

const Mod = require('module')
const req = Mod.prototype.require
let indent = ''
const rootRE = new RegExp(process.cwd(), 'g')
const stack = []
Mod.prototype.require = function() {
	try {
		const request = arguments[0]

wmertens

#!/usr/bin/env bash
#
# ssh-crypt
#
# Bash function to encrypt/decrypt with your ssh-agent private key.
# Requires the commands gzip, ssh-add, ssh-keygen and openssl.
#
# Uses bash-specific extensions like <<<$var to securely pass data.
#
# Wout.Mertens@gmail.com 2021-11-11 - MIT Licensed

wmertens

Store Nix store in git

The Nix store is an immutable file tree store, addressed by output hashes ($outhash-$name or $out), but could also be tweaked to be addressed by the content hash of the file tree ($cas).

Git is a content-addressed immutable object store. It is optimized for storing files as blobs and directories as tree objects.

Here we consider using a git repository for deduplicating, compressing and distributing the Nix store. We want to achieve maximum deduplication so we extract small changes from files before storing, so they become more similar.

Method

wmertens

// This behaves like an input field with value and onChange, except that onChange can be called on mount
// Pass defaults so it knows which value keys to encode/decode
// Steps:
// Initial mount, or location changes: start at 1
// Value changes: start at 4
// 1. parse match into parsed
// 2. parse search, merge into parsed
// 3. post-process parsed => value; onChange(value)
// 4. pre-process value => toStore
// 5. create new pathname from toStore or keep current. This can mutate toStore

wmertens

import React, {createContext, useContext, useRef} from 'react'
import PropTypes from 'prop-types'

const Id = createContext()

const useIdGetter = (prefix = 'id') => {
	const ref = useRef()
	if (!ref.current) {
		const me = {id: 0, get: () => `${prefix}-${me.id++}`}
		ref.current = me

wmertens

/* eslint-disable max-depth, no-console */
// TODO create adminSchema, leave adminQueries and mutations out of schema
// In the graphqlhandler, pass the right schema depending on isAdmin
import debug from 'debug'
import {get} from 'lodash'
import {GraphQLSchema, GraphQLObjectType} from 'graphql'
import ssrCache from 'stratokit/prerender/cache'
import {adminOnly} from './utils'
import {maskErrors} from 'graphql-errors'

wmertens

@@ -0,0 +1,62 @@
import React from 'react'
import RULES from './somewhere' // What you normally feed slate-html-serializer

const rules = [
	...RULES,
	// from slate-html-serializer
	{
		serialize(obj, children) {
			if (obj.object === 'string') {

wmertens

import arrow from 'symbol-loader!arrow.svg'

const App = () => (
  <SymbolProvider>
    <svg><Use symbol={arrow} /></svg>
  </SymbolProvider>
)

wmertens

import DataLoader from 'dataloader'
import {graphqlExpress} from 'graphql-server-express'
import schema from './schema'
import db from './database'

const contextFromReq = req => {
	const {session} = req

	const loaders = {}
	const getLoader = (id, makeGetter) => {