evanrelf

#!/usr/bin/env bash

set -Eeuo pipefail
IFS=$'\n\t'

if [ "$#" -ne 1 ]; then
  echo "usage: ./download <year>" >&2
  exit 1
fi

DesktopECHO

@ECHO OFF
SET LXDISTRO=MyWSL2vm & SET WSL2PORT=3399 & SET HOSTPORT=3398
NETSH INTERFACE PORTPROXY RESET & NETSH AdvFirewall Firewall delete rule name="%LXDISTRO% Port Forward" > NUL
WSL -d %LXDISTRO% -- ip addr show eth0 ^| grep -oP '(?^<=inet\s)\d+(\.\d+){3}' > IP.TMP
SET /p IP=<IP.TMP
NETSH INTERFACE PORTPROXY ADD v4tov4 listenport=%HOSTPORT% listenaddress=0.0.0.0 connectport=%WSL2PORT% connectaddress=%IP% 
NETSH AdvFirewall Firewall add rule name="%LXDISTRO% Port Forward" dir=in action=allow protocol=TCP localport=%HOSTPORT% > NUL
ECHO WSL2 Virtual Machine %IP%:%WSL2PORT%now accepting traffic on %COMPUTERNAME%:%HOSTPORT%

daehahn

# WSL2 network port forwarding script v1
#   for enable script, 'Set-ExecutionPolicy -ExecutionPolicy Bypass -Scope CurrentUser' in Powershell,
#   for delete exist rules and ports use 'delete' as parameter, for show ports use 'list' as parameter.
#   written by Daehyuk Ahn, Aug-1-2020

# Display all portproxy information
If ($Args[0] -eq "list") {
    netsh interface portproxy show v4tov4;
    exit;
} 

romainl

Off the beaten path

What is &path used for?

Vim uses :help 'path' to define the root directories from where to search non-recursively for files.

It is used for:

• gf, gF, <C-w>f, <C-w>F, <C-w>gf, <C-w>gF,
• :find, :sfind, :tabfind,

lava

Interactive Debugging on Github Actions

Did you ever run into some issue where a job would behave slightly different in you CI environment than on your local machine? Did you ever wish you could run just a few commands in a shell on your build machine?

These are, of course rhetorical questions. And if you're using Github Actions to run your CI jobs, you'll have noticed that this use case is not supported at all. Can't create a nice walled garden if anyone could just run a CI job, after all. There are some workarounds (e.g. https://github.com/nektos/act), but since they're not officially supported they can be a bit unstable. Also, even they usually don't reproduce the exact environment found on github's servers.

w33ble

function mapSeries(arr) {
  if (!Array.isArray(arr)) throw new Error('mapSeries requires an Array');
  const length = arr.length;
  const results = new Array(length);
  
  arr.reduce((chain, item, i) => {
    return chain.then(() => item).then(val => results[i] = val);
  }, Promise.resolve())
  .then(() => results);
}

Timothee

#!/usr/bin/env bash

# This function lets you easily create series of commands into a single call
# It will print each successive command, run it and, as long as it returned
# with code 0, continue to the next step.
# If any step fails, it will stop and let you pick it back up after you fix the
# issues.
#
# Example of script using this function:
# !/usr/bin/env bash

ohanhi

Learning FP the hard way: Experiences on the Elm language

by Ossi Hanhinen, @ohanhi

with the support of Futurice 💚.

Licensed under CC BY 4.0.

Editorial note

blueyed

#!/bin/sh
#
# Query a property from the terminal, e.g. background color.
#
# XTerm Operating System Commands
#     "ESC ] Ps;Pt ST"

oldstty=$(stty -g)

# What to query?

staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

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