refactor(Cypress): add nodemodules
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197
node_modules/insert-module-globals/index.js
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197
node_modules/insert-module-globals/index.js
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var undeclaredIdentifiers = require('undeclared-identifiers');
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var through = require('through2');
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var merge = require('xtend');
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var parse = require('acorn-node').parse;
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var path = require('path');
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var isAbsolute = path.isAbsolute || require('path-is-absolute');
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var processPath = require.resolve('process/browser.js');
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var isbufferPath = require.resolve('is-buffer')
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var combineSourceMap = require('combine-source-map');
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function getRelativeRequirePath(fullPath, fromPath) {
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var relpath = path.relative(path.dirname(fromPath), fullPath);
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// If fullPath is in the same directory or a subdirectory of fromPath,
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// relpath will result in something like "index.js", "src/abc.js".
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// require() needs "./" prepended to these paths.
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if (!/^\./.test(relpath) && !isAbsolute(relpath)) {
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relpath = "./" + relpath;
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}
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// On Windows: Convert path separators to what require() expects
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if (path.sep === '\\') {
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relpath = relpath.replace(/\\/g, '/');
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}
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return relpath;
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}
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var defaultVars = {
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process: function (file) {
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var relpath = getRelativeRequirePath(processPath, file);
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return 'require(' + JSON.stringify(relpath) + ')';
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},
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global: function () {
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return 'typeof global !== "undefined" ? global : '
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+ 'typeof self !== "undefined" ? self : '
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+ 'typeof window !== "undefined" ? window : {}'
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;
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},
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'Buffer.isBuffer': function (file) {
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var relpath = getRelativeRequirePath(isbufferPath, file);
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return 'require(' + JSON.stringify(relpath) + ')';
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},
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Buffer: function () {
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return 'require("buffer").Buffer';
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},
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setImmediate: function () {
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return 'require("timers").setImmediate';
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},
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clearImmediate: function () {
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return 'require("timers").clearImmediate';
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},
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__filename: function (file, basedir) {
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var relpath = path.relative(basedir, file);
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// standardize path separators, use slash in Windows too
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if ( path.sep === '\\' ) {
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relpath = relpath.replace(/\\/g, '/');
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}
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var filename = '/' + relpath;
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return JSON.stringify(filename);
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},
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__dirname: function (file, basedir) {
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var relpath = path.relative(basedir, file);
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// standardize path separators, use slash in Windows too
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if ( path.sep === '\\' ) {
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relpath = relpath.replace(/\\/g, '/');
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}
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var dir = path.dirname('/' + relpath );
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return JSON.stringify(dir);
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}
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};
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module.exports = function (file, opts) {
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if (/\.json$/i.test(file)) return through();
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if (!opts) opts = {};
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var basedir = opts.basedir || '/';
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var vars = merge(defaultVars, opts.vars);
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var varNames = Object.keys(vars).filter(function(name) {
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return typeof vars[name] === 'function';
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});
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var quick = RegExp(varNames.map(function (name) {
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return '\\b' + name + '\\b';
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}).join('|'));
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var chunks = [];
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return through(write, end);
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function write (chunk, enc, next) { chunks.push(chunk); next() }
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function end () {
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var self = this;
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var source = Buffer.isBuffer(chunks[0])
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? Buffer.concat(chunks).toString('utf8')
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: chunks.join('')
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;
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source = source
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.replace(/^\ufeff/, '')
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.replace(/^#![^\n]*\n/, '\n');
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if (opts.always !== true && !quick.test(source)) {
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this.push(source);
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this.push(null);
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return;
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}
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try {
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var undeclared = opts.always
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? { identifiers: varNames, properties: [] }
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: undeclaredIdentifiers(parse(source), { wildcard: true })
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;
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}
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catch (err) {
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var e = new SyntaxError(
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(err.message || err) + ' while parsing ' + file
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);
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e.type = 'syntax';
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e.filename = file;
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return this.emit('error', e);
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}
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var globals = {};
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varNames.forEach(function (name) {
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if (!/\./.test(name)) return;
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var parts = name.split('.')
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var prop = undeclared.properties.indexOf(name)
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if (prop === -1 || countprops(undeclared.properties, parts[0]) > 1) return;
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var value = vars[name](file, basedir);
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if (!value) return;
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globals[parts[0]] = '{'
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+ JSON.stringify(parts[1]) + ':' + value + '}';
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self.emit('global', name);
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});
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varNames.forEach(function (name) {
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if (/\./.test(name)) return;
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if (globals[name]) return;
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if (undeclared.identifiers.indexOf(name) < 0) return;
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var value = vars[name](file, basedir);
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if (!value) return;
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globals[name] = value;
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self.emit('global', name);
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});
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this.push(closeOver(globals, source, file, opts));
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this.push(null);
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}
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};
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module.exports.vars = defaultVars;
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function closeOver (globals, src, file, opts) {
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var keys = Object.keys(globals);
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if (keys.length === 0) return src;
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var values = keys.map(function (key) { return globals[key] });
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// we double-wrap the source in IIFEs to prevent code like
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// (function(Buffer){ const Buffer = null }())
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// which causes a parse error.
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var wrappedSource = '(function (){\n' + src + '\n}).call(this)';
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if (keys.length <= 3) {
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wrappedSource = '(function (' + keys.join(',') + '){'
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+ wrappedSource + '}).call(this,' + values.join(',') + ')'
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;
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}
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else {
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// necessary to make arguments[3..6] still work for workerify etc
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// a,b,c,arguments[3..6],d,e,f...
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var extra = [ '__argument0', '__argument1', '__argument2', '__argument3' ];
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var names = keys.slice(0,3).concat(extra).concat(keys.slice(3));
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values.splice(3, 0,
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'arguments[3]','arguments[4]',
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'arguments[5]','arguments[6]'
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);
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wrappedSource = '(function (' + names.join(',') + '){'
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+ wrappedSource + '}).call(this,' + values.join(',') + ')';
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}
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// Generate source maps if wanted. Including the right offset for
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// the wrapped source.
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if (!opts.debug) {
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return wrappedSource;
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}
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var sourceFile = path.relative(opts.basedir, file)
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.replace(/\\/g, '/');
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var sourceMap = combineSourceMap.create().addFile(
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{ sourceFile: sourceFile, source: src},
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{ line: 1 });
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return combineSourceMap.removeComments(wrappedSource) + "\n"
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+ sourceMap.comment();
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}
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function countprops (props, name) {
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return props.filter(function (prop) {
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return prop.slice(0, name.length + 1) === name + '.';
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}).length;
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}
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