Florian Neumann florianb

Gettings started writing a ESLint rule

First, take a look at the ESLint rule documentation. Just skim it for now. It's very long and boring. You can come back to it later.

ESLint rules works on the AST (Abstract Syntax Tree) representation of the code. In short, this is a tree structure that describes the code in a very verbose form. ESLint walks this tree and rules can subscribe to be notified when it hits a specific node type, like a Literal type, which could be the "hello" part of const welcome = "hello";.

Go ahead and play around with some code in AST Explorer (Make sure the parser is espree). It's a great tool!

Here are some good articles on the subject (ignore the scaffolding parts):

https://insideops.wordpress.com/2015/12/08/creating-custom-rules-for-eslint/

Gettings started writing a ESLint rule

First, take a look at the ESLint rule documentation. Just skim it for now. It's very long and boring. You can come back to it later.

ESLint rules works on the AST (Abstract Syntax Tree) representation of the code. In short, this is a tree structure that describes the code in a very verbose form. ESLint walks this tree and rules can subscribe to be notified when it hits a specific node type, like a Literal type, which could be the "hello" part of const welcome = "hello";.

Go ahead and play around with some code in AST Explorer (Make sure the parser is espree). It's a great tool!

Here are some good articles on the subject (ignore the scaffolding parts):

https://insideops.wordpress.com/2015/12/08/creating-custom-rules-for-eslint/

	#!/usr/bin/env bash

	set -e

	CONTEXT="$1"

	if [[ -z ${CONTEXT} ]]; then
	echo "Usage: $0 KUBE-CONTEXT"
	exit 1
	fi

	## Basics
	/connect irc.nullirc.net
	/server add -network <name> <url> <port>
	/join <channel>
	/alias <name> /action ...

	## xmpp
	yum install irssi-xmpp
	irssi
	/load xmpp

	#!/bin/sh
	#
	# /etc/init.d/tomcat -- startup script for the Tomcat 7 servlet engine
	#
	# Modified init-Script from Ubuntu Tomcat init-script
	#
	# 2010 - Sebastian Mogilowski - http://www.mogilowski.net/2010/12/11/install-tomcat-7-on-debian-lenny-with-virtual-hosts-and-apache2-integration/
	# 2012 - Collin Peters - Added debug option
	#
	### BEGIN INIT INFO

	sa.setAppenderFactory(new AppenderFactory<ILoggingEvent>() {

	@Override
	public Appender<ILoggingEvent> buildAppender(Context context, String discriminatingValue) throws JoranException {
	RollingFileAppender<ILoggingEvent> appender = new RollingFileAppender<>();
	appender.setName("ROLLINGFILE-" + discriminatingValue);
	appender.setContext(context);
	appender.setFile(discriminatingValue + ".log");

	TimeBasedRollingPolicy<ILoggingEvent> policy = new TimeBasedRollingPolicy<>();

	#!/usr/bin/env bash

	# Formatting constants
	export BOLD=`tput bold`
	export UNDERLINE_ON=`tput smul`
	export UNDERLINE_OFF=`tput rmul`
	export TEXT_BLACK=`tput setaf 0`
	export TEXT_RED=`tput setaf 1`
	export TEXT_GREEN=`tput setaf 2`
	export TEXT_YELLOW=`tput setaf 3`