ryan ryanwoodsmall

To remove a submodule you need to:

Delete the relevant section from the .gitmodules file.
Stage the .gitmodules changes git add .gitmodules
Delete the relevant section from .git/config.
Run git rm --cached path_to_submodule (no trailing slash).
Run rm -rf .git/modules/path_to_submodule (no trailing slash).
Commit git commit -m "Removed submodule "
Delete the now untracked submodule files rm -rf path_to_submodule

some tools for diagrams in software documentation

Diagrams For Documentation

Obvious Choices

ASCII

To limit a CPU to a certain C-state, you can pass the processor.max_cstate=X option in the kernel line of /boot/grub/grub.conf.

Here we limit the system to only C-State 1:

    kernel /vmlinuz-2.6.18-371.1.2.el5 ... processor.max_cstate=1

On some systems, the kernel can override the BIOS setting, and the parameter intel_idle.max_cstate=0 may be required to ensure sleep states are not entered:

Password-store keeps your passwords (or any other sensitive information) saved in GnuPG encrypted files organized in ~/.password-store. For more information about GPG, consult the GNU Privacy Handbook.

Getting started

To get started, install pass and generate a keypair.

$ brew install pass
$ gpg --gen-key
$ gpg --list-keys

Introduction

jenkins-stats.py is used to generate statics for jenkins server, so far it display the plugin's usage in each job, see related stackoverflow question:how can I know whether the plugin is used by any jobs in jenkins

Installation

python-requests module is required

Reader Macros in Common Lisp

This post also appears on lisper.in.

Reader macros are perhaps not as famous as ordinary macros. While macros are a great way to create your own DSL, reader macros provide even greater flexibility by allowing you to create entirely new syntax on top of Lisp.

Paul Graham explains them very well in [On Lisp][] (Chapter 17, Read-Macros):

The three big moments in a Lisp expression's life are read-time, compile-time, and runtime. Functions are in control at runtime. Macros give us a chance to perform transformations on programs at compile-time. ...read-macros... do their work at read-time.

	#!/bin/bash
	### BEGIN INIT INFO
	# Provides: zram
	# Required-Start:
	# Required-Stop:
	# Default-Start: 2 3 4 5
	# Default-Stop: 0 1 6
	# Short-Description: Virtual Swap Compressed in RAM
	# Description: Virtual Swap Compressed in RAM
	### END INIT INFO

	/*
	This file is part of ttymidi.

	ttymidi is free software: you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation, either version 3 of the License, or
	(at your option) any later version.

	ttymidi is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of

	// A small SSH daemon providing bash sessions
	//
	// Server:
	// cd my/new/dir/
	// #generate server keypair
	// ssh-keygen -t rsa
	// go get -v .
	// go run sshd.go
	//
	// Client:

	#!/usr/bin/env bash

	# names of latest versions of each package
	export NGINX_VERSION=1.15.5
	export VERSION_NGINX=nginx-$NGINX_VERSION
	export VERSION_LIBRESSL=libressl-2.8.1
	export VERSION_PCRE=pcre-8.42
	#export NPS_VERSION=1.9.32.10
	#export VERSION_PAGESPEED=v${NPS_VERSION}-beta