rektide

var promiseSource = new WeakMap()
(function(){
  const promiseConstructor = Promise.constructor
  Promise.constructor = function(fn){
    console.log("monkeypatch successful")
    promiseConstructor.call(this, fn)
    promiseSource.set(this, new Error().stack)
  }
}())
var sample = new Promise(x => x(42)) // expecting: "monkeypatch successful"

rektide

In the releases after Ansible 2.1, a vast amount of the expressivitiy in Ansible went away or broke.

I was in pain and hurting. I started trying to to upstream things I needed to continue on, but the templating situation post 2.1 was really bad with no signs of recovery to the once pristine state.

I somewhat dramatically opined, about what felt like a world I had built upon shattering,

Damnit Ansible could you have done any more to ruin it all.

Your fall has cast a horrible pall over all good things in this world. The birds no longer chirp. The grass is dead.

rektide

// ==UserScript==
// @name CloudFormation Filter
// @namespace http://tampermonkey.net/
// @version 0.99a
// @description add filterability to the CloudFormation URL template via a "term" query parameter in the hash
// @author rektide
// @match https://console.aws.amazon.com/cloudformation/home*
// @grant none
// ==/UserScript==

rektide

#!/usr/bin/env python
# -*- coding: utf-8 -*-

from __future__ import print_function, division, absolute_import, unicode_literals
from builtins import *  # noqa

from getpass import getpass

from gmusicapi import Mobileclient

rektide

$ xinput --list-props 17
Device 'ThinkPad Compact Bluetooth Keyboard with TrackPoint':
	Device Enabled (139):	1
	Coordinate Transformation Matrix (141):	1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
	libinput Calibration Matrix (300):	1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
	libinput Calibration Matrix Default (301):	1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
	libinput Accel Speed (283):	0.000000
	libinput Accel Speed Default (284):	0.000000
	libinput Accel Profiles Available (596):	1, 1
	libinput Accel Profile Enabled (597):	1, 0

rektide

What/Why

I as concerned about whether the presence of rescue in Ruby had significant performance impact.

In JavaScript for example try/catch historically has had significant impact itself, even when no exceptions were being thrown.

Based on these benchmarks though, I can see Ruby doesn't seem to have significant cost for defining exception handlers.

Results

rektide

Direnv-launch

Systemd is supposed to be the swiss army knife of starting things and keeping them going. For the most part, it works really really well. It has a very flexible developer-friendly way of letting one specify EnvironmentFile's providing environmental variables for programs it's launching.

The major pitfall is that it does not in any way support multi-line values. If you want to pass in a normal boring certificate to your applicatino (because you are a good respectful 12factor dev practicing proper config), you may be S.O.L (shit out of luck).

Thie horrible helper, direnv-launch, lets one use direnv-ish files when launching programs. Direnv's .envrc files can be multi-line, which is great. This is also going to be compatible and useful with your fellow Mac & Windows developers. Note that variables must be declared as export in envrc, as in export FOO=bar, which is different, but closely mimics how everything

rektide

---
- hosts: all
  tasks:
  # this is created with my username in my homedir
  - file: path=~/ansible-become-test state=directory owner="{{ansible_ssh_user}}"
  # this is owned by root
  - file: path=/opt/ansible-become-test state=directory owner="{{ansible_ssh_user}}"
    become: True

rektide

http://localhost:9090/graph#%5B%7B%22range_input%22%3A%222h%22%2C%22end_input%22%3A%22%22%2C%22step_input%22%3A%22%22%2C%22stacked%22%3A%22%22%2C%22expr%22%3A%22node_power_supply_charge_now%22%2C%22tab%22%3A0%7D%2C%7B%22range_input%22%3A%222h%22%2C%22end_input%22%3A%22%22%2C%22step_input%22%3A%22%22%2C%22stacked%22%3A%22%22%2C%22expr%22%3A%22node_power_supply_voltage_now%22%2C%22tab%22%3A0%7D%2C%7B%22range_input%22%3A%222h%22%2C%22end_input%22%3A%22%22%2C%22step_input%22%3A%22%22%2C%22stacked%22%3A%22%22%2C%22expr%22%3A%22node_power_supply_current_now%22%2C%22tab%22%3A0%7D%2C%7B%22range_input%22%3A%222h%22%2C%22end_input%22%3A%22%22%2C%22step_input%22%3A%22%22%2C%22stacked%22%3A%22%22%2C%22expr%22%3A%22node_power_supply_current_now*node_power_supply_voltage_now%22%2C%22tab%22%3A0%7D%5D

rektide

#!/bin/zsh
. ./.envrc
eval $*