314 lines
30 KiB
JavaScript
314 lines
30 KiB
JavaScript
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define(['exports', 'neo-async', 'fs', './handlebars', 'path', 'source-map'], function (exports, _neoAsync, _fs, _handlebars, _path, _sourceMap) {
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/* eslint-disable no-console */
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'use strict';
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// istanbul ignore next
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
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var _Async = _interopRequireDefault(_neoAsync);
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var _fs2 = _interopRequireDefault(_fs);
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module.exports.loadTemplates = function (opts, callback) {
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loadStrings(opts, function (err, strings) {
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if (err) {
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callback(err);
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} else {
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loadFiles(opts, function (err, files) {
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if (err) {
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callback(err);
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} else {
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opts.templates = strings.concat(files);
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callback(undefined, opts);
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}
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});
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}
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});
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};
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function loadStrings(opts, callback) {
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var strings = arrayCast(opts.string),
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names = arrayCast(opts.name);
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if (names.length !== strings.length && strings.length > 1) {
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return callback(new _handlebars.Exception('Number of names did not match the number of string inputs'));
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}
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_Async['default'].map(strings, function (string, callback) {
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if (string !== '-') {
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callback(undefined, string);
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} else {
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(function () {
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// Load from stdin
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var buffer = '';
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process.stdin.setEncoding('utf8');
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process.stdin.on('data', function (chunk) {
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buffer += chunk;
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});
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process.stdin.on('end', function () {
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callback(undefined, buffer);
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});
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})();
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}
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}, function (err, strings) {
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strings = strings.map(function (string, index) {
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return {
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name: names[index],
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path: names[index],
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source: string
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};
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});
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callback(err, strings);
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});
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}
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function loadFiles(opts, callback) {
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// Build file extension pattern
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var extension = (opts.extension || 'handlebars').replace(/[\\^$*+?.():=!|{}\-[\]]/g, function (arg) {
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return '\\' + arg;
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});
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extension = new RegExp('\\.' + extension + '$');
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var ret = [],
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queue = (opts.files || []).map(function (template) {
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return { template: template, root: opts.root };
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});
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_Async['default'].whilst(function () {
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return queue.length;
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}, function (callback) {
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var _queue$shift = queue.shift();
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var path = _queue$shift.template;
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var root = _queue$shift.root;
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_fs2['default'].stat(path, function (err, stat) {
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if (err) {
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return callback(new _handlebars.Exception('Unable to open template file "' + path + '"'));
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}
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if (stat.isDirectory()) {
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opts.hasDirectory = true;
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_fs2['default'].readdir(path, function (err, children) {
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/* istanbul ignore next : Race condition that being too lazy to test */
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if (err) {
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return callback(err);
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}
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children.forEach(function (file) {
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var childPath = path + '/' + file;
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if (extension.test(childPath) || _fs2['default'].statSync(childPath).isDirectory()) {
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queue.push({ template: childPath, root: root || path });
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}
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});
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callback();
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});
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} else {
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_fs2['default'].readFile(path, 'utf8', function (err, data) {
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/* istanbul ignore next : Race condition that being too lazy to test */
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if (err) {
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return callback(err);
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}
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if (opts.bom && data.indexOf('') === 0) {
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data = data.substring(1);
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}
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// Clean the template name
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var name = path;
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if (!root) {
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name = _path.basename(name);
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} else if (name.indexOf(root) === 0) {
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name = name.substring(root.length + 1);
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}
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name = name.replace(extension, '');
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ret.push({
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path: path,
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name: name,
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source: data
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});
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callback();
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});
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}
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});
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}, function (err) {
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if (err) {
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callback(err);
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} else {
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callback(undefined, ret);
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}
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});
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}
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module.exports.cli = function (opts) {
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if (opts.version) {
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console.log(_handlebars.VERSION);
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return;
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}
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if (!opts.templates.length && !opts.hasDirectory) {
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throw new _handlebars.Exception('Must define at least one template or directory.');
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}
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if (opts.simple && opts.min) {
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throw new _handlebars.Exception('Unable to minimize simple output');
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}
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var multiple = opts.templates.length !== 1 || opts.hasDirectory;
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if (opts.simple && multiple) {
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throw new _handlebars.Exception('Unable to output multiple templates in simple mode');
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}
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// Force simple mode if we have only one template and it's unnamed.
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if (!opts.amd && !opts.commonjs && opts.templates.length === 1 && !opts.templates[0].name) {
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opts.simple = true;
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}
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// Convert the known list into a hash
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var known = {};
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if (opts.known && !Array.isArray(opts.known)) {
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opts.known = [opts.known];
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}
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if (opts.known) {
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for (var i = 0, len = opts.known.length; i < len; i++) {
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known[opts.known[i]] = true;
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}
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}
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var objectName = opts.partial ? 'Handlebars.partials' : 'templates';
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var output = new _sourceMap.SourceNode();
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if (!opts.simple) {
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if (opts.amd) {
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output.add('define([\'' + opts.handlebarPath + 'handlebars.runtime\'], function(Handlebars) {\n Handlebars = Handlebars["default"];');
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} else if (opts.commonjs) {
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output.add('var Handlebars = require("' + opts.commonjs + '");');
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} else {
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output.add('(function() {\n');
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}
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output.add(' var template = Handlebars.template, templates = ');
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if (opts.namespace) {
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output.add(opts.namespace);
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output.add(' = ');
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output.add(opts.namespace);
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output.add(' || ');
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}
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output.add('{};\n');
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}
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opts.templates.forEach(function (template) {
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var options = {
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knownHelpers: known,
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knownHelpersOnly: opts.o
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};
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if (opts.map) {
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options.srcName = template.path;
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}
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if (opts.data) {
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options.data = true;
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}
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var precompiled = _handlebars.precompile(template.source, options);
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// If we are generating a source map, we have to reconstruct the SourceNode object
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if (opts.map) {
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var consumer = new _sourceMap.SourceMapConsumer(precompiled.map);
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precompiled = _sourceMap.SourceNode.fromStringWithSourceMap(precompiled.code, consumer);
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}
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if (opts.simple) {
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output.add([precompiled, '\n']);
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} else {
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if (!template.name) {
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throw new _handlebars.Exception('Name missing for template');
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}
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if (opts.amd && !multiple) {
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output.add('return ');
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}
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output.add([objectName, '[\'', template.name, '\'] = template(', precompiled, ');\n']);
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}
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});
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// Output the content
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if (!opts.simple) {
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if (opts.amd) {
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if (multiple) {
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output.add(['return ', objectName, ';\n']);
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}
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output.add('});');
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} else if (!opts.commonjs) {
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output.add('})();');
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}
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}
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if (opts.map) {
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output.add('\n//# sourceMappingURL=' + opts.map + '\n');
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}
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output = output.toStringWithSourceMap();
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output.map = output.map + '';
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if (opts.min) {
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output = minify(output, opts.map);
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}
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if (opts.map) {
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_fs2['default'].writeFileSync(opts.map, output.map, 'utf8');
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}
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output = output.code;
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if (opts.output) {
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_fs2['default'].writeFileSync(opts.output, output, 'utf8');
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} else {
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console.log(output);
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}
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};
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function arrayCast(value) {
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value = value != null ? value : [];
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if (!Array.isArray(value)) {
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value = [value];
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}
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return value;
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}
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/**
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* Run uglify to minify the compiled template, if uglify exists in the dependencies.
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*
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* We are using `require` instead of `import` here, because es6-modules do not allow
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* dynamic imports and uglify-js is an optional dependency. Since we are inside NodeJS here, this
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* should not be a problem.
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*
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* @param {string} output the compiled template
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* @param {string} sourceMapFile the file to write the source map to.
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*/
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function minify(output, sourceMapFile) {
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try {
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// Try to resolve uglify-js in order to see if it does exist
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require.resolve('uglify-js');
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} catch (e) {
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if (e.code !== 'MODULE_NOT_FOUND') {
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// Something else seems to be wrong
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throw e;
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}
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// it does not exist!
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console.error('Code minimization is disabled due to missing uglify-js dependency');
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return output;
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}
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return require('uglify-js').minify(output.code, {
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sourceMap: {
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content: output.map,
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url: sourceMapFile
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}
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});
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}
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});
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