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Precompile .handlebars templates with Jake (nodejs)
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var fs = require('fs') | |
var vm = require('vm') | |
var handlebarsjs = fs.readFileSync('path/to/handlebars.js', 'utf8') | |
var emberjs = fs.readFileSync('path/to/ember.js', 'utf8') | |
var templatesDir = 'path/to/template/dir' | |
desc('Compile all .handlebars templates') | |
task({ 'handlebars': [] }, function () { | |
process.stdout.write('Compiling .handlebars templates') | |
var files = fs.readdirSync(templatesDir) | |
var i | |
for (i = 0; i < files.length; i++) { | |
if (/\.handlebars$/.test(files[i])) { | |
compileHandlebarsTemplate(templatesDir + '/' + files[i]) | |
process.stdout.write('.') | |
} | |
} | |
console.log('done') | |
}) | |
function compileHandlebarsTemplate(file, onComplete) { | |
//dummy jQuery | |
var jQuery = function () { return jQuery } | |
jQuery.ready = function () { return jQuery } | |
jQuery.inArray = function () { return jQuery } | |
jQuery.jquery = "1.7.1" | |
jQuery.event = { fixHooks: {} } | |
//dummy DOM element | |
var element = { | |
firstChild: function () { return element }, | |
innerHTML: function () { return element } | |
} | |
var sandbox = { | |
// DOM | |
document: { | |
createRange: false, | |
createElement: function () { return element } | |
}, | |
// Console | |
console: console, | |
// jQuery | |
jQuery: jQuery, | |
$: jQuery, | |
// handlebars template to compile | |
template: fs.readFileSync(file, 'utf8'), | |
// compiled handlebars template | |
templatejs: null | |
} | |
// window | |
sandbox.window = sandbox | |
// create a context for the vm using the sandbox data | |
var context = vm.createContext(sandbox) | |
// load Handlebars and Ember into the sandbox | |
vm.runInContext(handlebarsjs, context, 'ember.js') | |
vm.runInContext(emberjs, context, 'ember.js') | |
//compile the handlebars template inside the vm context | |
vm.runInContext('templatejs = Ember.Handlebars.precompile(template).toString()', context) | |
var fileName = path.basename(file) | |
var namedTemplateJs = 'Ember.TEMPLATES["' + | |
fileName.replace(/.handlebars/, '') + | |
'"] = Ember.Handlebars.template(' + context.templatejs + ');' | |
//extract the compiled template from the vm context and save to .js file, | |
//implicitely adding template to Ember.TEMPLATES when it is required | |
fs.writeFileSync(file.replace(/\.handlebars$/, '.js'), namedTemplateJs, 'utf8') | |
} |
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Added line:
jQuery.event = { fixHooks: {} }
to fix recently introduced emberjs dependency on jQuery.event object.