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darul75darul75
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‎.gitignore

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node_modules

‎index.js

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var acorn = require('acorn'),
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path = require('path'),
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isExpressRouting = require('./isExpressRouting'),
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SourceNode = require('source-map').SourceNode,
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SourceMapConsumer = require('source-map').SourceMapConsumer,
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makeIdentitySourceMap = require('./makeIdentitySourceMap');
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module.exports = function(source, map) {
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if (this.cacheable) {
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this.cacheable();
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}
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var resourcePath = this.resourcePath,
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filename = path.basename(resourcePath);
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if (/[\\/]webpack[\\/]express-hot-loader[\\/]/.test(resourcePath)) {
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return this.callback(null, source, map);
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}
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var fine = true;
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// parse source
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// try {
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// var ast = acorn.parse(source, {ecmaVersion: 6, sourceType: 'module'});
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// }
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// catch (err) {
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// fine = false;
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// return this.callback(err);
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// }
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/* USE PARSING ?
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var names = ast.body.filter(function(node) {
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return node.type === 'FunctionDeclaration';
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}).map(function(node) {
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return node.id.name;
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});
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*/
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console.log('--------resource --------');
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console.log(resourcePath);
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if (/node_modules/.test(resourcePath)) {
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return this.callback(null, source, map);
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}
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// cleaner
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var src = source.replace(/\r?\n|\r/g, ' ');
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// code generation
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var prependTxt = [],
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appendTxt,
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separator = '\n\n';
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var check = isExpressRouting.check(src);
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var processor = require('./processor');
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var exportApp = '';
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if (check.containsExpressInstance) {
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exportApp = 'module.exports = app;\n';
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processor.setExpressResourcePath(resourcePath);
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}
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prependTxt = [
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'var processor = require(' + JSON.stringify(require.resolve('./processor')) + ');\n',
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];
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if (processor.mainExpressResourcePath != null &&
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processor.mainExpressResourcePath !== resourcePath) {
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// INJECT EXPRESS APP
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prependTxt.push('var expressFile = ' +JSON.stringify(processor.mainExpressResourcePath) + ';\n\t');
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prependTxt.push('var app = require(' + JSON.stringify(require.resolve(processor.mainExpressResourcePath)) + ');\n\t');
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}
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prependTxt = prependTxt.join(' ');
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appendTxt = [
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exportApp,
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'if (module.hot && ' +JSON.stringify(fine) +') {\n\t',
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'module.hot.dispose(function(data){\n\t\t',
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'if (module.hot.data.routes.length > 0 && app != null) {\n\t\t',
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'\tprocessor.doReload(app, module.hot.data);\n',
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'\t\t}\n',
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'\t});\n\n',
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'var warning = '+JSON.stringify(check.containsExpressInstance)+' && '+(check.routes != null && check.routes.length > 0) + ';\n\n',
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'module.hot.data = {\n\t',
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'routerNames: '+JSON.stringify(check.routerNames)+',\n\t',
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'routes: '+JSON.stringify(check.routes)+',\n\t',
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'warning: warning\n',
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'};\n\n',
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'if (module.hot.data.warning) {\n',
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'\tprocessor.warn();\n',
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'}\n',
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'}'
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].join(' ');
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if (this.sourceMap === false) {
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return this.callback(null, [
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prependTxt,
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source,
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appendTxt
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].join(separator));
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}
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var newCode = [
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prependTxt,
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source,
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appendTxt
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].join(separator);
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if (!map) {
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// var transform = require("babel-core").transform(source, {
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// sourceMaps: true,
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// filename: this.resourcePath,
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// sourceFileName: this.resourcePath
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// });
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map = makeIdentitySourceMap(source, this.resourcePath);
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}
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var node = new SourceNode(null, null, null, [
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new SourceNode(null, null, this.resourcePath, prependTxt),
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SourceNode.fromStringWithSourceMap(source, new SourceMapConsumer(map)),
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new SourceNode(null, null, this.resourcePath, appendTxt)
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]).join(separator);
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var result = node.toStringWithSourceMap();
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this.callback(null, result.code, result.map.toString());
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}

‎isExpressRouting.js

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'use strict';
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/* MATCH
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following declaration
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var router = express.Router();
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const router = express.Router();
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let router = express.Router();
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*/
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//var routerNamePattern = /(?:var|const|let)\s*(\w+)\s*\=\s*(?:express\.Router)/g;
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/* MATCH
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middleware and HTTP method routes
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*/
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var routerLevelPattern = /\.(?:all|get|param|post|delete|post|route|use)\('(\/([\w+\-\*\:]|\/?)*)/g;
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var expressInstanciationPattern = /createServer\(/g;
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module.exports = {
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check: function (source) {
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console.log("CHECK SOURCE");
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var containsExpressInstance = expressInstanciationPattern.test(source);
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console.log("isExpress " + containsExpressInstance);
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// var routerNames = [];
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// var routeVariableNameMatch;
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// while ((routeVariableNameMatch = routerNamePattern.exec(source)) !== null) {
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// routerNames.push(routeVariableNameMatch[1]);
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// }
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var routes = [];
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var uses;
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var lastIndex = -1;
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while ((uses = routerLevelPattern.exec(source)) !== null) {
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routes.push(uses[1]);
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if (lastIndex < 0) {
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lastIndex = routerLevelPattern.lastIndex;
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}
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}
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// console.log(routerNames);
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console.log(routes);
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console.log(containsExpressInstance);
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return {
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containsExpressInstance: containsExpressInstance,
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routes: routes
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// routerNames: routerNames
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};
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}
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};

‎makeIdentitySourceMap.js

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'use strict';
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var SourceMapGenerator = require('source-map').SourceMapGenerator;
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function makeIdentitySourceMap(content, resourcePath) {
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var map = new SourceMapGenerator();
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map.setSourceContent(resourcePath, content);
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content.split('\n').map(function (line, index) {
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map.addMapping({
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source: resourcePath,
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original: {
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line: index + 1,
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column: 0
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},
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generated: {
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line: index + 1,
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column: 0
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}
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});
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});
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return map.toJSON();
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}
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module.exports = makeIdentitySourceMap;

‎package.json

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{
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"name": "express-hot-loader",
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"version": "0.0.1",
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"description": "Reload express routes",
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"main": "index.js",
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"repository": {
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"type": "git",
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"url": "https://github.com/darul75/express-hot-reload.git"
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},
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"keywords": [
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"express",
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"javascript",
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"webpack",
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"hmr",
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"livereload",
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"live",
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"edit",
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"hot",
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"loader",
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"reload"
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],
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"author": "Julien Valéry",
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"license": "MIT",
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"bugs": {
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"url": "https://github.com/darul75/express-hot-reload/issues"
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},
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"homepage": "https://github.com/darul75/express-hot-reload",
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"dependencies": {
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"acorn": "^2.0.4",
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"express": "^4.12.3",
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"node-libs-browser": "^0.5.0",
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"source-map": "^0.4.4",
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"webpack": "^1.9.7"
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}
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}

‎processor.js

Whitespace-only changes.

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