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209
node_modules/serve-static/index.js
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209
node_modules/serve-static/index.js
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/*!
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* serve-static
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* Copyright(c) 2010 Sencha Inc.
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* Copyright(c) 2011 TJ Holowaychuk
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* Copyright(c) 2014-2016 Douglas Christopher Wilson
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* MIT Licensed
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*/
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'use strict'
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/**
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* Module dependencies.
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* @private
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*/
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var encodeUrl = require('encodeurl')
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var escapeHtml = require('escape-html')
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var parseUrl = require('parseurl')
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var resolve = require('path').resolve
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var send = require('send')
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var url = require('url')
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/**
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* Module exports.
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* @public
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*/
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module.exports = serveStatic
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module.exports.mime = send.mime
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/**
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* @param {string} root
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* @param {object} [options]
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* @return {function}
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* @public
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*/
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function serveStatic (root, options) {
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if (!root) {
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throw new TypeError('root path required')
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}
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if (typeof root !== 'string') {
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throw new TypeError('root path must be a string')
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}
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// copy options object
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var opts = Object.create(options || null)
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// fall-though
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var fallthrough = opts.fallthrough !== false
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// default redirect
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var redirect = opts.redirect !== false
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// headers listener
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var setHeaders = opts.setHeaders
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if (setHeaders && typeof setHeaders !== 'function') {
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throw new TypeError('option setHeaders must be function')
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}
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// setup options for send
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opts.maxage = opts.maxage || opts.maxAge || 0
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opts.root = resolve(root)
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// construct directory listener
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var onDirectory = redirect
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? createRedirectDirectoryListener()
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: createNotFoundDirectoryListener()
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return function serveStatic (req, res, next) {
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if (req.method !== 'GET' && req.method !== 'HEAD') {
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if (fallthrough) {
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return next()
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}
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// method not allowed
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res.statusCode = 405
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res.setHeader('Allow', 'GET, HEAD')
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res.setHeader('Content-Length', '0')
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res.end()
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return
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}
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var forwardError = !fallthrough
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var originalUrl = parseUrl.original(req)
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var path = parseUrl(req).pathname
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// make sure redirect occurs at mount
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if (path === '/' && originalUrl.pathname.substr(-1) !== '/') {
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path = ''
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}
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// create send stream
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var stream = send(req, path, opts)
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// add directory handler
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stream.on('directory', onDirectory)
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// add headers listener
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if (setHeaders) {
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stream.on('headers', setHeaders)
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}
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// add file listener for fallthrough
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if (fallthrough) {
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stream.on('file', function onFile () {
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// once file is determined, always forward error
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forwardError = true
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})
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}
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// forward errors
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stream.on('error', function error (err) {
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if (forwardError || !(err.statusCode < 500)) {
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next(err)
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return
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}
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next()
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})
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// pipe
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stream.pipe(res)
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}
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}
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/**
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* Collapse all leading slashes into a single slash
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* @private
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*/
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function collapseLeadingSlashes (str) {
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for (var i = 0; i < str.length; i++) {
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if (str.charCodeAt(i) !== 0x2f /* / */) {
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break
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}
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}
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return i > 1
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? '/' + str.substr(i)
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: str
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}
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/**
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* Create a minimal HTML document.
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*
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* @param {string} title
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* @param {string} body
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* @private
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*/
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function createHtmlDocument (title, body) {
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return '<!DOCTYPE html>\n' +
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'<html lang="en">\n' +
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'<head>\n' +
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'<meta charset="utf-8">\n' +
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'<title>' + title + '</title>\n' +
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'</head>\n' +
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'<body>\n' +
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'<pre>' + body + '</pre>\n' +
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'</body>\n' +
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'</html>\n'
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}
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/**
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* Create a directory listener that just 404s.
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* @private
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*/
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function createNotFoundDirectoryListener () {
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return function notFound () {
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this.error(404)
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}
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}
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/**
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* Create a directory listener that performs a redirect.
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* @private
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*/
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function createRedirectDirectoryListener () {
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return function redirect (res) {
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if (this.hasTrailingSlash()) {
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this.error(404)
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return
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}
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// get original URL
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var originalUrl = parseUrl.original(this.req)
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// append trailing slash
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originalUrl.path = null
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originalUrl.pathname = collapseLeadingSlashes(originalUrl.pathname + '/')
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// reformat the URL
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var loc = encodeUrl(url.format(originalUrl))
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var doc = createHtmlDocument('Redirecting', 'Redirecting to ' + escapeHtml(loc))
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// send redirect response
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res.statusCode = 301
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res.setHeader('Content-Type', 'text/html; charset=UTF-8')
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res.setHeader('Content-Length', Buffer.byteLength(doc))
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res.setHeader('Content-Security-Policy', "default-src 'none'")
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res.setHeader('X-Content-Type-Options', 'nosniff')
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res.setHeader('Location', loc)
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res.end(doc)
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}
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}
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42
node_modules/serve-static/package.json
generated
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42
node_modules/serve-static/package.json
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{
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"name": "serve-static",
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"description": "Serve static files",
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"version": "1.16.2",
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"author": "Douglas Christopher Wilson <doug@somethingdoug.com>",
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"license": "MIT",
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"repository": "expressjs/serve-static",
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"dependencies": {
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"encodeurl": "~2.0.0",
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"escape-html": "~1.0.3",
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"parseurl": "~1.3.3",
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"send": "0.19.0"
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},
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"devDependencies": {
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"eslint": "7.32.0",
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"eslint-config-standard": "14.1.1",
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"eslint-plugin-import": "2.25.4",
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"eslint-plugin-markdown": "2.2.1",
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"eslint-plugin-node": "11.1.0",
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"eslint-plugin-promise": "5.2.0",
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"eslint-plugin-standard": "4.1.0",
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"mocha": "9.2.2",
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"nyc": "15.1.0",
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"safe-buffer": "5.2.1",
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"supertest": "6.2.2"
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},
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"files": [
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"LICENSE",
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"HISTORY.md",
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"index.js"
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],
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"engines": {
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"node": ">= 0.8.0"
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},
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"scripts": {
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"lint": "eslint .",
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"test": "mocha --reporter spec --bail --check-leaks test/",
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"test-ci": "nyc --reporter=lcov --reporter=text npm test",
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"test-cov": "nyc --reporter=html --reporter=text npm test",
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"version": "node scripts/version-history.js && git add HISTORY.md"
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}
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}
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