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var fs = require('fs'),
Handlebars = require('./index'),
basename = require('path').basename,
uglify = require('uglify-js');
module.exports.cli = function(opts) {
if (opts.version) {
console.log(Handlebars.VERSION);
return;
}
var template = [0];
if (!opts.templates.length) {
throw new Handlebars.Exception('Must define at least one template or directory.');
}
opts.templates.forEach(function(template) {
try {
fs.statSync(template);
} catch (err) {
throw new Handlebars.Exception('Unable to open template file "' + template + '"');
}
});
if (opts.simple && opts.min) {
throw new Handlebars.Exception('Unable to minimze simple output');
}
if (opts.simple && (opts.templates.length !== 1 || fs.statSync(opts.templates[0]).isDirectory())) {
throw new Handlebars.Exception('Unable to output multiple templates in simple mode');
}
// Convert the known list into a hash
var known = {};
if (opts.known && !Array.isArray(opts.known)) {
opts.known = [opts.known];
}
if (opts.known) {
for (var i = 0, len = opts.known.length; i < len; i++) {
known[opts.known[i]] = true;
}
}
// Build file extension pattern
var extension = opts.extension.replace(/[\\^$*+?.():=!|{}\-\[\]]/g, function(arg) { return '\\' + arg; });
extension = new RegExp('\\.' + extension + '$');
var output = [];
if (!opts.simple) {
if (opts.amd) {
output.push('define([\'' + opts.handlebarPath + 'handlebars.runtime\'], function(Handlebars) {\n Handlebars = Handlebars["default"];');
} else if (opts.commonjs) {
output.push('var Handlebars = require("' + opts.commonjs + '");');
} else {
output.push('(function() {\n');
}
output.push(' var template = Handlebars.template, templates = ');
output.push(opts.namespace);
output.push(' = ');
output.push(opts.namespace);
output.push(' || {};\n');
}
function processTemplate(template, root) {
var path = template,
stat = fs.statSync(path);
if (stat.isDirectory()) {
fs.readdirSync(template).map(function(file) {
var path = template + '/' + file;
if (extension.test(path) || fs.statSync(path).isDirectory()) {
processTemplate(path, root || template);
}
});
} else {
var data = fs.readFileSync(path, 'utf8');
if (opts.bom && data.indexOf('\uFEFF') === 0) {
data = data.substring(1);
}
var options = {
knownHelpers: known,
knownHelpersOnly: opts.o
};
if (opts.data) {
options.data = true;
}
// Clean the template name
if (!root) {
template = basename(template);
} else if (template.indexOf(root) === 0) {
template = template.substring(root.length+1);
}
template = template.replace(extension, '');
if (opts.simple) {
output.push(Handlebars.precompile(data, options) + '\n');
} else if (opts.partial) {
if(opts.amd && (opts.templates.length == 1 && !fs.statSync(opts.templates[0]).isDirectory())) {
output.push('return ');
}
output.push('Handlebars.partials[\'' + template + '\'] = template(' + Handlebars.precompile(data, options) + ');\n');
} else {
if(opts.amd && (opts.templates.length == 1 && !fs.statSync(opts.templates[0]).isDirectory())) {
output.push('return ');
}
output.push('templates[\'' + template + '\'] = template(' + Handlebars.precompile(data, options) + ');\n');
}
}
}
opts.templates.forEach(function(template) {
processTemplate(template, opts.root);
});
// Output the content
if (!opts.simple) {
if (opts.amd) {
if(opts.templates.length > 1 || (opts.templates.length == 1 && fs.statSync(opts.templates[0]).isDirectory())) {
if(opts.partial){
output.push('return Handlebars.partials;\n');
} else {
output.push('return templates;\n');
}
}
output.push('});');
} else if (!opts.commonjs) {
output.push('})();');
}
}
output = output.join('');
if (opts.min) {
output = uglify.minify(output, {fromString: true}).code;
}
if (opts.output) {
fs.writeFileSync(opts.output, output, 'utf8');
} else {
console.log(output);
}
};
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