wokalski

type expectException
type expect<'a, 'ret>

@module("@jest/globals") external describe: (string, unit => unit) => unit = "describe"
@module("@jest/globals") external test: (string, unit => unit) => unit = "test"
@module("@jest/globals") external testAsync: (string, unit => Js.Promise.t<unit>) => unit = "test"

@module("@jest/globals") external expect: 'a => expect<'a, unit> = "expect"
@module("@jest/globals") external expectF: (unit => 'a) => expect<expectException, unit> = "expect"
@module("@jest/globals")

wokalski

#!/bin/zsh

PID_FILE="$HOME/.boundary_session_ttcp_BRTTDbGBAK"

connect() {
  echo "Inititating a boundary session to k8s..."
  TMP_FILE=$(mktemp)
  nohup -- boundary connect -target-id ttcp_BRTTDbGBAK -format json &> $TMP_FILE &
  CONNECT_PID=$!

wokalski

My approach to complex programming tasks (iteration 1)

1. Define the input
2. Define the output
3. Define the steps leading from the input to output in either direction
4. Spot the weak links/hard parts
5. Understand if the weak links can be avoided - if yes go to 3
6. Start implementing the algorithm from the end (starting from the step which generates the output and threading back)

wokalski

import * as React from "react";
import { css } from "styled-components";
import { Color, Text, Elevation } from "./Styles";
import { size, spacing, opacity } from "./BaseUnit";
import { keyframes } from "styled-components";

const fadeIn = keyframes`
  from {
    transform: rotate(0deg);
  }

wokalski

Sending build context to Docker daemon  1.931MB

Step 1/7 : FROM ulrikaugustsson/esy:latest
 ---> e2f92066e3df
Step 2/7 : ARG ocaml_version=4.9.0
 ---> Using cache
 ---> eb02038ad958
Step 3/7 : ENV TERM=dumb LD_LIBRARY_PATH=/usr/local/lib:/usr/lib:/lib
 ---> Using cache
 ---> 2602c8833912

wokalski

BuckleScript friendly vim + official ocaml-lsp setup for Reason/OCaml

Prerequisite: Install esy 0.6.0.

Steps

1. Check esy version (it has to be >0.6.0)
2. Create esy.json with the following contents next to package.json:

wokalski

λ esy build-plan -p @opam/postgresql
{
  "id": "opam__s__postgresql-opam__c__4.5.2-7fdcd1e6",
  "name": "@opam/postgresql",
  "version": "opam:4.5.2",
  "sourceType": "immutable",
  "buildType": "in-source",
  "build": [ [ "dune", "build", "-p", "postgresql", "-j", "4" ] ],
  "install": [],
  "sourcePath":

wokalski

type validatorData('a) = {
  value: 'a,
  isTouched: bool,
  submitted: bool,
};

type shouldDisplayError('error) = {
  error: 'error,
  isTouched: bool,
  submitted: bool,

wokalski

1. Create a dune file:

(library
 (public_name aggregate_ppx_name)
 (kind ppx_rewriter)
 (libraries ppx_deriving_protobuf other_ppx another_ppx))

2. Build:

dune build --profile release

wokalski

type t('list, 'last) =
  | []: t('a, 'a)
  | ::('a, t('l, 't)): t('a => 'l, 't);

let rec (@):
  type start mid rest. (t(start, mid => rest), mid) => t(start, rest) =
  (l, r) =>
    switch (l) {
    | [] => [r]
    | [a, ...q] => [a, ...q @ r]