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jade.js
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jade.js
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/*
* grunt-contrib-jade
* http://gruntjs.com/
*
* Copyright (c) 2012 Eric Woroshow, contributors
* Licensed under the MIT license.
*/
'use strict';
module.exports = function(grunt) {
var _ = grunt.util._;
var helpers = require('grunt-lib-contrib').init(grunt);
// content conversion for templates
var defaultProcessContent = function(content) { return content; };
// filename conversion for templates
var defaultProcessName = function(name) { return name.replace('.jade', ''); };
grunt.registerMultiTask('jade', 'Compile jade templates.', function() {
var options = this.options({
namespace: 'JST',
separator: grunt.util.linefeed + grunt.util.linefeed,
amd: false
});
grunt.verbose.writeflags(options, 'Options');
var data = options.data;
delete options.data;
var nsInfo;
if(options.namespace !== false){
nsInfo = helpers.getNamespaceDeclaration(options.namespace);
}
// assign transformation functions
var processContent = options.processContent || defaultProcessContent;
var processName = options.processName || defaultProcessName;
this.files.forEach(function(f) {
var templates = [];
f.src.filter(function(filepath) {
// Warn on and remove invalid source files (if nonull was set).
if (!grunt.file.exists(filepath)) {
grunt.log.warn('Source file "' + filepath + '" not found.');
return false;
} else {
return true;
}
})
.forEach(function(filepath) {
var src = processContent(grunt.file.read(filepath));
var compiled, filename;
filename = processName(filepath);
options = grunt.util._.extend(options, { filename: filepath });
try {
compiled = require('jade').compile(src, options);
// if in client mode, return function source
if (options.client) {
compiled = compiled.toString();
} else {
compiled = compiled(data);
}
// if configured for amd and the namespace has been explicitly set
// to false, the jade template will be directly returned
if (options.client && options.amd && options.namespace === false) {
compiled = 'return ' + compiled;
}
} catch (e) {
grunt.log.error(e);
grunt.fail.warn('Jade failed to compile '+filepath+'.');
}
if (options.client && options.namespace !== false) {
templates.push(nsInfo.namespace+'['+JSON.stringify(filename)+'] = '+compiled+';');
} else {
templates.push(compiled);
}
});
var output = templates;
if (output.length < 1) {
grunt.log.warn('Destination not written because compiled files were empty.');
} else {
if (options.client && options.namespace !== false) {
output.unshift(nsInfo.declaration);
if (options.node) {
output.unshift('var jade = jade || require(\'jade\').runtime;');
var nodeExport = 'if (typeof exports === \'object\' && exports) {';
nodeExport += 'module.exports = ' + nsInfo.namespace + ';}';
output.push(nodeExport);
}
}
if (options.amd) {
// Wrap the file in an AMD define fn.
output.unshift("define(['jade'], function(jade) { if(jade && jade['runtime'] !== undefined) { jade = jade.runtime; }");
if (options.namespace !== false) {
// Namespace has not been explicitly set to false; the AMD
// wrapper will return the object containing the template.
output.push("return "+nsInfo.namespace+";");
}
output.push("});");
}
grunt.file.write(f.dest, output.join(grunt.util.normalizelf(options.separator)));
grunt.log.writeln('File "' + f.dest + '" created.');
}
});
});
};