Created
September 8, 2012 01:28
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enable recompile on file change on module: jade-browser
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| var fs = require('fs') | |
| , path = require('path') | |
| , jade = require('jade') | |
| , async = require('async') | |
| , glob = require('glob') | |
| , parser = require('uglify-js').parser | |
| , compiler = require('uglify-js').uglify | |
| , Expose = require('./lib/expose') | |
| , render = require('./lib/render').render | |
| , utils = require('./lib/utils'); | |
| module.exports = function(exportPath, patterns, options){ | |
| var options = options || {} | |
| , ext = options.ext || 'jade' | |
| , namespace = options.namespace || 'jade' | |
| , built = false | |
| , debug = options.debug || false | |
| , minify = options.minify || false | |
| , maxAge = options.maxAge || 86400 | |
| , cache = options.cache || false | |
| , exportPath = exportPath.replace(/\/$/,'') | |
| , root = path.normalize(options.root ? options.root.replace(/\/$/,'') : __dirname) | |
| , regexp = utils.toRegExp(exportPath, true) | |
| , payload = new Expose() | |
| , headers = { | |
| 'Cache-Control': 'public, max-age=' + maxAge | |
| , 'Content-Type': 'text/javascript' | |
| }; | |
| return function(req, res, next){ | |
| if (!req.url.match(regexp)) { | |
| return next(); | |
| } | |
| if (built && cache == true) { | |
| res.writeHead(200, headers); | |
| res.end(built); | |
| } else { | |
| payload = new Expose() | |
| if (typeof patterns == 'string') { | |
| patterns = [patterns]; | |
| } | |
| var files = []; | |
| patterns.forEach(function(pattern) { | |
| pattern = path.join(root, pattern); | |
| try { | |
| var matches = glob.sync(pattern); | |
| matches = matches.filter(function(match) { | |
| return match.match(ext + '$'); | |
| }); | |
| files = files.concat(matches); | |
| } catch(e) {} | |
| }); | |
| async.map(files, getTemplate, expose); | |
| function getTemplate(filename, cb) { | |
| fs.readFile(filename, 'utf8', function(err, content){ | |
| if (err) { | |
| return cb(err); | |
| } | |
| var tmpl = jade.compile(content, { | |
| filename: filename | |
| , inline: false | |
| , compileDebug: false | |
| , client: true | |
| }); | |
| if (typeof tmpl == 'function') { | |
| var fn = 'var jade=window.' + namespace + '; return anonymous(locals);'+ tmpl.toString(); | |
| fn = new Function('locals', fn); | |
| cb(null, { | |
| filename: filename | |
| , fn: fn | |
| }); | |
| } else { | |
| cb(new Error('Failed to compile')); | |
| } | |
| }); | |
| } | |
| function expose(e, results) { | |
| var templates = {}, filename; | |
| results.forEach(function(template) { | |
| filename = template.filename.replace(root + '/', '') | |
| templates[filename] = template.fn; | |
| }); | |
| var code = jade.runtime.escape.toString() +';' | |
| code += jade.runtime.attrs.toString().replace(/exports\./g, '') + ';' | |
| code += ' return attrs(obj);' | |
| payload.expose({ | |
| attrs: new Function('obj', code) | |
| , escape: jade.runtime.escape | |
| , dirname: utils.dirname | |
| , normalize: utils.normalize | |
| , render: render(namespace) | |
| , templates: templates | |
| }, namespace, 'output'); | |
| built = payload.exposed('output'); | |
| if (minify) { | |
| var code = parser.parse(built); | |
| code = compiler.ast_mangle(code); | |
| code = compiler.ast_squeeze(code); | |
| built = compiler.gen_code(code); | |
| } | |
| res.writeHead(200, headers); | |
| res.end(built); | |
| } | |
| } | |
| } | |
| } |
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