jaymecd

#!/usr/bin/env bash

#/ Sample command to perform update and query it's status
#/
#/ Usage: <SELF_NAME> [-h|--help] <command>
#/
#/ Available commands:
#/     one      - perform some update, idempotent
#/                usage: <SELF_NAME> one <arg1> [arg2]
#/     two      - query status of update

jaymecd

package main

import (
	"context"
	"errors"
	"fmt"
	"os"
	"os/signal"
	"syscall"
	"time"

jaymecd

#!/usr/bin/env bash
#
# Split single S3 Inventory manifest into sequential subsets.
#
# Usage:
#   $ env INVENTORY_BUCKET=my-inventory INVENTORY_PATH=sample-name ./s3.batch.operations.manifest.split.sh
#

set -euo pipefail

jaymecd

Pivot JSON data

This one-liner pivots data from group>users or user>groups:

$ cat incoming.json \
  | jq 'map(. as $in | .users[] | . as $u | {user:$u, group:$in.group}) | group_by(.user) | map({user:.[0].user, groups: map(.group)})'

[
 {

jaymecd

MAKEFLAGS += --warn-undefined-variables
SHELL := bash -o pipefail -c
.DEFAULT_GOAL := help

.PHONY: help all deps build

guardEnvVar = $(if $(value $(1)),,$(error env $(1) not defined))

# Note: help extracts title from ## comment just above the target, builds target/title grid and prints it pretty.
## Show help

jaymecd

Way to build Windows STIG/CIS hardened AMI on AWS.

Problem is that WinRM Basic authentication is blocked by GroupPolicy.

Therefore it's required to setup WinRM over HTTPS.

jaymecd

# TEST WinRM connect

$targetHost = 'localhost'
$username = 'Administrator'
$password = 'PASSWORD'

$secret = ConvertTo-SecureString -String $password -AsPlainText -Force
$cred = New-Object -TypeName System.Management.Automation.PSCredential -ArgumentList $username, $secret

$option = New-PSSessionOption -SkipCACheck -SkipCNCheck -SkipRevocationCheck

jaymecd

function time([scriptblock]$scriptblock) {
    $sw = [Diagnostics.Stopwatch]::StartNew()
    . $scriptblock
    $sw.Stop()

    Write-Output ""
    Write-Output "  >> Execution time: $($sw.Elapsed)"
}

time { Install-Module -Name PSWindowsUpdate }

jaymecd

NOTE: This is a question I found on StackOverflow which I’ve archived here, because the answer is so effing phenomenal.

---

Q: How can I make a chain of function decorators in Python?

---

If you are not into long explanations, see [Paolo Bergantino’s answer][2].

jaymecd

const substr = (str, start = 0, length = str.length) => {
    if (start === 0 && length === str.length) {
        return str;
    }

    if (start > str.length || length <= 0) {
        return '';
    }
    
    const startIndex = (start < 0) ? Math.max(0, str.length - Math.abs(start)) : start;