xcsrz / webtask-backup.py

Created May 10, 2021 21:05

Backup your webtask code. Can be used to make sure you have the latest version of your code locally, or used to backup in case at some point webtask.io ceases to function. Considering they very recently started failing to install new npm modules, this could be any point now I fear.

	import subprocess
	from json import dumps

	# NOTE: Files will be written to the current directory, without any checks to prevent overwriting. Archiving and/or version control are not considered here, but highly encouraged.

	# get a list of all webtasks for the current user
	list_request = subprocess.run(['wt', 'ls'], stdout=subprocess.PIPE, text=True)
	# transform that output into a list of task names
	tasks = [ ln.replace('Name:','').strip() for ln in list_request.stdout.split("\n") if 'Name:' in ln ]

xcsrz / accessing child accounts in aws.md

Created October 11, 2021 17:42

Accessing "member accounts" of your AWS organization. Since the AWS documentation and all the write-ups are more complicated than useful, there's the cliff notes.

Switching to Child Account in AWS

Prerequisites

Setting up a child accocunt:

look at https://docs.aws.amazon.com/organizations/latest/userguide/orgs_manage_accounts_access.html#orgs_manage_accounts_create-cross-account-role
you only need steps 1-9

Configuring switch roles

xcsrz / getContentHash.py

Last active December 20, 2021 20:19

Python port of the getContentHash() function from PHP's Composer. Useful when updating composer.lock from php when composer is available. Granted this "shouldn't be done" and is "doing it wrong", but sometimes running composer commands in your deployment chain is overkill and redundent.

	import hashlib
	from json import dumps
	from collections import OrderedDict

	# composerFileContents should be the dict version of the composer.json file
	def getContentHash(composerFileContents):
	relevant = OrderedDict((key, composerFileContents[key]) for key in composerFileContents.keys() if key in ['name','version','require','require-dev','conflict','replace','provide','minimum-stability','prefer-stable','repositories','extra'])

	if 'config' in composerFileContents and 'platform' in composerFileContents['config']:
	relevant['config']['platform'] = composerFileContents['config']['platform']

xcsrz / flush-elasticsearch.sh

Created November 13, 2021 22:13

Sometimes you just need to delete everything in an elasticsearch cluster and you don't have access to do the stop-rm-rf-start thing.

for idx in $(curl -sS https://${DOMAIN}:${PORT}/_cat/indices | awk '{print $3}'); do curl -XDELETE "https://${DOMAIN}:${PORT}/${idx}"; done

xcsrz / armagetron-build-instructions.md

Created January 11, 2022 17:04

Building Armagetron on macos (worked on Catalina)

Install Dependencies

brew install pkg-config autoconf automake sdl2 sdl2_image sdl2_mixer protobuf-c glew boost ftgl dylibbundler create-dmg

Setup

./bootstrap.sh

xcsrz / list-timezones-with-winter-and-summer-offsets.py

Created January 16, 2022 17:46

Sometimes you just want a list of timezones with their offsets. From this you can find the offset for a given timezone on a specific date.

	from datetime import datetime
	import pytz

	UTC = pytz.timezone("UTC")
	for tzn in pytz.common_timezones:
	tz = pytz.timezone(tzn)
	print(
	tzn,
	UTC.localize(datetime(2020, 12, 15)).astimezone(tz).strftime('%z'),
	UTC.localize(datetime(2020, 6, 15)).astimezone(tz).strftime('%z'),

xcsrz / amazon2-linux-amis-for-cloudformation.py

Created February 25, 2022 21:20

This script prints out the current list of Amazon2 Linux AMI's by region (kernel 5.10, HVM, x86_64, gp2). Changing the image variable and the Path filter make this capable of searching for any public/shared image.

	import boto3
	from json import dumps
	from yaml import dump

	image = 'amzn2-ami-kernel-5.10-hvm-x86_64-gp2'

	regions = [
	'ap-northeast-1',
	'ap-northeast-2',
	'ap-northeast-3',

xcsrz / es-doc-accounting.py

Created March 7, 2022 15:57

Reconcile descrepencies in document counts within elasticsearch

	from requests import get
	from json import dumps, loads
	from prettytable import PrettyTable


	src_server = 'http://localhost:9200'

	def docCount(idx=None, typ=None):
	url = src_server
	if idx:

xcsrz / install-python-3.9-on-centos.sh

Created May 13, 2022 15:52

Install Python 3.9 on CentOS or Amazon Linux

	#!/bin/sh

	sudo yum install gcc openssl-devel bzip2-devel libffi-devel zlib-devel
	cd /tmp
	wget https://www.python.org/ftp/python/3.9.6/Python-3.9.6.tgz
	tar -xvf Python-3.9.6.tgz
	cd Python-3.9.6
	./configure --enable-optimizations
	sudo make altinstall
	python3.9 --version

xcsrz / add-fades-to-video.sh

Last active February 26, 2023 16:36

Add a gentle fade-in from black to the beginning and a matching fade-out to the end of a video clip

	#!/bin/bash


	destfile() {
	dir=$(dirname "$1")
	filename=$(basename -- "$1");
	extension="${filename##*.}";
	basename="${filename%.*}";
	filepath="${dir}/${basename}-faded.${extension}";
	c=0