fix: Use eslint-plugin-wordpress/jscs shared configuration. (#22)

This change allows `eslint-config-wordpress` to be used as a "drop in" replacement for JSCS WordPress preset.

Author: ntwb

index.js

@@ -1,5 +1,4 @@
 module.exports = {
-
 	env: {
 		browser: true
 	},
@@ -20,30 +19,80 @@ module.exports = {
 		'no-irregular-whitespace': 'error',
 		// Best Practices
 		// Specify curly brace conventions for all control statements
-		'curly': 'error',
-		// Require the use of === and !==
-		'eqeqeq': 'error',
-		// Disallow use of arguments.caller or arguments.callee
-		'no-caller': 'error',
-		// Disallow comparisons to null without a type-checking operator
-		'no-eq-null': 'error',
-		// Disallow usage of expressions in statement position
-		'no-unused-expressions': 'error',
+		'curly': ['error', 'all'],
+		// Encourages use of dot notation whenever possible
+		'dot-notation': ['error', {
+			allowKeywords: true,
+			allowPattern: '^[a-z]+(_[a-z]+)+$'
+		}],
+		// Disallow use of multiline strings
+		'no-multi-str': 'error',
+		// Disallow use of the with statement
+		'no-with': 'error',
+		// Requires to declare all vars on top of their containing scope
+		'vars-on-top': 'error',
 		// Require immediate function invocation to be wrapped in parentheses
-		'wrap-iife': ['error', 'any'],
+		'wrap-iife': 'error',
+		// Require or disallow Yoda conditions
+		'yoda': ['error', 'always'],
 		// Strict Mode
 		// Variables
-		// Disallow use of undeclared variables unless mentioned in a /*global */ block
-		'no-undef': 'error',
-		// Disallow declaration of variables that are not used in the code
-		'no-unused-vars': 'error',
 		// Stylistic Issues
+		// Enforce spacing inside array brackets
+		'array-bracket-spacing': ['error', 'always'],
+		// Enforce one true brace style
+		'brace-style': 'error',
+		// Require camel case names
+		'camelcase': ['error', {
+			properties: 'always'
+		}],
+		// Disallow or enforce trailing commas
+		'comma-dangle': ['error', 'never'],
+		// Enforce spacing before and after comma
+		'comma-spacing': 'error',
+		// Enforce one true comma style
+		'comma-style': ['error', 'last'],
+		// Enforce newline at the end of file, with no multiple empty lines
+		'eol-last': 'error',
+		// Enforces spacing between keys and values in object literal properties
+		'key-spacing': ['error', {
+			beforeColon: false,
+			afterColon: true
+		}],
+		// Enforce spacing before and after keywords
+		'keyword-spacing': 'error',
+		// Disallow mixed "LF" and "CRLF" as linebreaks
+		'linebreak-style': ['error', 'unix'],
+		// Enforces empty lines around comments
+		'lines-around-comment': ['error', {
+			beforeLineComment: true
+		}],
+		// Disallow mixed spaces and tabs for indentation
+		'no-mixed-spaces-and-tabs': 'error',
+		// Disallow multiple empty lines
+		'no-multiple-empty-lines': 'error',
 		// Disallow trailing whitespace at the end of lines
 		'no-trailing-spaces': 'error',
-		// Enforce variables to be declared either together or separately in functions
-		'one-var': ['error', 'always'],
+		// Require or disallow an newline around variable declarations
+		'one-var-declaration-per-line': ['error', 'initializations'],
+		// Enforce operators to be placed before or after line breaks
+		'operator-linebreak': ['error', 'after'],
 		// Specify whether backticks, double or single quotes should be used
-		'quotes': ['error', 'single']
+		'quotes': ['error', 'single'],
+		// Require or disallow use of semicolons instead of ASI
+		'semi': ['error', 'always'],
+		// Require or disallow space before blocks
+		'space-before-blocks': ['error', 'always'],
+		// Require or disallow space before function opening parenthesis
+		'space-before-function-paren': ['error', 'never'],
+		// Require or disallow space before blocks
+		'space-in-parens': ['error', 'always', {exceptions: ['{}', '[]']}],
+		// Require spaces around operators
+		'space-infix-ops': 'error',
+		// Require or disallow spaces before/after unary operators (words on by default, nonwords)
+		'space-unary-ops': ['error', {
+			overrides: {'!': true}
+		}]
 		// Legacy
 	}
 };