brimston3’s gists

brimston3 / pcgen.bat

Created January 27, 2017 18:45

using zulu on the desktop overriding global environment variables

	set JAVA_HOME=C:\Develop\zulu8.19.0.1-jdk8.0.112-win_x64
	set PATH=%JAVA_HOME%\bin;%PATH%
	set JDK_HOME=%JAVA_HOME%
	set JRE_HOME=%JAVA_HOME%\jre
	set CLASSPATH=.;%JDK_HOME%\lib;%JRE_HOME%\lib
	set JAVA_TOOL_OPTIONS=-Dfile.encoding="UTF-8"

	set javamem="-d64 -Xms256m -Xmx512m"

	java %javamem% -jar ./pcgen.jar

brimston3 / BackupVMScript.ps1

Created January 26, 2017 21:25

Backup Hyper-V VM with powershell

	#requires -version 3.0
	#requires -module Hyper-V

	<#
	.SYNOPSIS
	Export virtual machines
	.DESCRIPTION
	This utility will export virtual machines to a target destination. By default
	it will create a folder using the format:

brimston3 / mk_gocrypt_test_tmp.sh

Last active January 19, 2017 21:45

create ext2 tmp fs for testing gocryptfs w/ non-fallocate backing store.

	#!/bin/sh
	# run from sudo

	mkdir /tmp/gocryptfs-test-parent
	truncate --size 500m gocrypt_ext2.lo
	losetup /dev/loop0 gocrypt_ext2.lo
	mkfs.ext2 /dev/loop0
	mount /dev/loop0 /tmp/gocryptfs-test-parent
	chown ${SUDO_UID}:${SUDO_GID} /tmp/gocryptfs-test-parent/.
	chmod 1777 /tmp/gocryptfs-test-parent/.

brimston3 / makefile_guard.mak

Created November 29, 2016 01:51

Makefile env variable declaration guard w/ file existence protection

	guard-%: GUARD
	@ if [ -z '${${}}' ]; then echo 'Environment variable $ not set.' && exit 1; fi

	.PHONY: GUARD
	GUARD:

brimston3 / hyperref_bookmarks_ex.tex

Created October 3, 2016 16:00

Very simple example generating pdf bookmarks in LaTeX w/ hyperref

	\documentclass{article}
	\usepackage[bookmarks=true]{hyperref}

	\hypersetup{pdfencoding=auto,
	pdfauthor={SomeAuthor}
	}

	\begin{document}
	\section{Test 1}
	text 1

brimston3 / install.bat

Created September 29, 2016 21:05 — forked from wjrogers/install.bat

Automated cygwin installation, with thanks to http://old.nabble.com/Re%3A-Customizable-cygwin-setup.exe-p25828300.html

	@ECHO OFF
	REM -- Automates cygwin installation

	SETLOCAL

	REM -- Change to the directory of the executing batch file
	CD %~dp0

	REM -- Configure our paths
	SET SITE=http://mirrors.kernel.org/sourceware/cygwin/

brimston3 / maxim_1wire_crc8.c

Last active November 22, 2022 12:44

Demonstrate calculation of CRC8/MAXIM aka DOW-CRC

	/*
	* maxim_1wire_crc8.c
	*
	* Demonstrate calculation of CRC8/MAXIM aka DOW-CRC in a way compatible with
	* Maxim 1-wire (Dallas iButton).
	*
	* Original portions copyright (C) June 3, 2016, Andrew Domaszek. All rights reserved.
	* Except as noted, this work is licensed under the Modified BSD License (BSD-new).
	*/

brimston3 / enum_bitwise_overload.cpp

Created April 29, 2016 15:53

In C++ Anything Is Possible. The only limitation is you!

	/* Demonstrate operator\|() overloading for enum type.
	If you want to hide the fact that your enum's numerical encoding is not actually bit flaggable.
	Please don't hurt me, I promise you will never see this in production code from me.

	~~aed.20160429

	Runnable version:
	http://coliru.stacked-crooked.com/a/bfedb189f1929447
	*/

brimston3 / undef_null_facepalm.c

Created April 26, 2016 14:24

	#include "stdio.h"

	// Only for extremely evil people
	#undef NULL
	#define NULL 7

	int main()
	{
	printf("%d\n", NULL);
	return 0;

brimston3 / function_lookup_table.lua

Created February 10, 2016 16:33

	#!/usr/bin/lua
	--[[
	Copyright (C) February 10, 2016, Andrew Domaszek
	(MIT License)

	Wrote this lua demonstrator for Joe

	Show some basics on how to do index-lookup-based function indirection instead
	of an if-elseif cascade and keep a table of global state. I suspect the keystate
	variable could be declared global instead of manually set in _G, but I've only done