Level up package

API:
add `buffer` method to Source
remove node and listNode methods from public API
remove LineToLineMappedSource
add SizeOnlySource

Bugfixes:
ConcatSource falls back to sourceAndMap when node() or listMap() is not available
PrefixSource do no longer insert prefix in the middle of the line in some cases

Contributing:
add prettier
remove js-beautify
update eslint config
format all files
check formating in CI
var to let/const

Code Style:
remove mixin in favor of helper methods

Performance:
avoid unnecessary sorting in ReplaceSource
make exports lazy

Tests:
add more tests

Other:
add Source types to hash
update deps

Author: sokra

.editorconfig

@@ -1,5 +1,13 @@
 root = true
 
-[*.js]
-indent_style=tab
-trim_trailing_whitespace=true
+[*]
+indent_style = tab
+indent_size = 2
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+max_line_length = 80
+
+[*.{yml,yaml,json}]
+indent_style = space
+indent_size = 2

.eslintrc

@@ -0,0 +1,63 @@
+module.exports = {
+	root: true,
+	plugins: ["prettier", "node", "mocha"],
+	extends: [
+		"eslint:recommended",
+		"plugin:node/recommended",
+		"plugin:prettier/recommended"
+	],
+	env: {
+		node: true,
+		es6: true,
+		mocha: true
+	},
+	parserOptions: {
+		ecmaVersion: 2017
+	},
+	rules: {
+		"prettier/prettier": "error",
+		"no-undef": "error",
+		"no-extra-semi": "error",
+		"no-template-curly-in-string": "error",
+		"no-caller": "error",
+		"no-control-regex": "off",
+		yoda: "error",
+		eqeqeq: "error",
+		"global-require": "off",
+		"brace-style": "off",
+		"eol-last": "error",
+		"no-extra-bind": "warn",
+		"no-process-exit": "warn",
+		"no-use-before-define": "off",
+		"no-unused-vars": ["error", { args: "none" }],
+		"no-unsafe-negation": "error",
+		"no-loop-func": "warn",
+		indent: "off",
+		"no-console": "off",
+		"valid-jsdoc": [
+			"error",
+			{
+				prefer: {
+					return: "returns",
+					prop: "property",
+					memberof: "DONTUSE",
+					class: "DONTUSE",
+					inheritdoc: "DONTUSE",
+					description: "DONTUSE",
+					readonly: "DONTUSE"
+				},
+				preferType: {
+					"*": "any"
+				},
+				requireReturnType: true
+			}
+		],
+		"node/no-unsupported-features": "error",
+		"node/no-deprecated-api": "error",
+		"node/no-missing-import": "error",
+		"node/no-missing-require": "error",
+		"node/no-unpublished-bin": "error",
+		"node/no-unpublished-require": "error",
+		"node/process-exit-as-throw": "error"
+	}
+};

.eslintrc.js

@@ -0,0 +1,13 @@
+module.exports = {
+	printWidth: 80,
+	useTabs: true,
+	tabWidth: 2,
+	overrides: [
+		{
+			files: "*.json",
+			options: {
+				useTabs: false
+			}
+		}
+	]
+};

.jsbeautifyrc

@@ -7,21 +7,21 @@ branches:
 
 matrix:
   include:
+    - os: linux
+      node_js: "10"
     - os: linux
       node_js: "8"
     - os: linux
       node_js: "6"
-    - os: linux
-      node_js: "4.3"
     - os: osx
-      node_js: "8"
+      node_js: "10"
   allow_failures:
     - os: osx
   fast_finish: true
 
-script: npm run travis
+script: yarn travis
 
 after_success:
   - cat ./coverage/lcov.info | node_modules/.bin/coveralls --verbose
-  - cat ./coverage/coverage.json | node_modules/codecov.io/bin/codecov.io.js
+  - bash <(curl -s https://codecov.io/bash) -X gcov
   - rm -rf ./coverage