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# A Python (3) class for more compact path handling.
#
# If you find yourself calling os.path.join() with the same first parameter
# over and over again it can get rather tedious. Instead you can now go:
#
# path = PathPrefix("/some/path")
# file1 = path / "file1"
# sub_file = path / "subdir" / "file2"

class PathPrefix(str):

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#!/usr/bin/env python3
"""Fetch and print temporary session credentials with MFA

To use this tool first put the ARN of your MFA access token into a
file called .aws_token_id in your home directory and ensure that the
tool is on your path. Then execute the command:

eval `aws-session`

You will be promoted to enter your current MFA token value. After this

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nickovs

# stepper.py

# A micropython driver for 4-phase, unipolar stepper motors such as
# the 28BYJ-48

# Relesed to the Public Domain by Nicko van Someren, 2020

# The constructor for the Stepper class takes as arguments the four
# pins for driving the motor phases, in phase order, and optionally a
# timer. The pins can be passed as pin numbers or machine.Pin objects

nickovs

"""A pure Python implementation of Curve25519

This module supports both a low-level interface through curve25519(base_point, secret)
and curve25519_base(secret) that take 32-byte blocks of data as inputs and a higher
level interface using the X25519PrivateKey and X25519PublicKey classes that are
compatible with the classes in cryptography.hazmat.primitives.asymmetric.x25519 with
the same names.
"""

# By Nicko van Someren, 2021. This code is released into the public domain.

nickovs

#!/bin/bash

# Clear out old images
[ -d "lib" ] && rm -r lib

cat <<EOF > tmp_recipe.sh
# This is the actual container-side recipe
yum groupinstall -y "Development Tools"

cd /root

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#!/bin/bash

# A script for mounting a host directory into a running Docker container

if [ "$#" -ne 3 ]; then
    echo "Usage: $0 <container> <host path> <target path>"
    exit 1
fi

CONTAINER=$1

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#!/usr/bin/env python3
# A simply tool for receiving water meter readings from a Badger ORION water meter.
# Device radio details can be found at https://fccid.io/GIF2006B
# Requires rtl_433 to be installed. See https://github.com/merbanan/rtl_433

import sys
import json
import subprocess

nickovs

#!/bin/bash
# Build an AWS Lambda zip file containing git and its dependencies

cat <<\EOF > tmp_build.sh
#!/bin/bash

# Comment this out if you want to see all the actions.
quiet=-q

# List of main executables from /usr/bin to copy into layer