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'use strict';
/*
* Engines which do not support caching of their file contents
* should use the `read()` function defined in consolidate.js
* On top of this, when an engine compiles to a `Function`,
* these functions should either be cached within consolidate.js
* or the engine itself via `options.cache`. This will allow
* users and frameworks to pass `options.cache = true` for
* `NODE_ENV=production`, however edit the file(s) without
* re-loading the application in development.
*/
/**
* Module dependencies.
*/
var fs = require('fs');
var path = require('path');
var Promise = require('bluebird');
var join = path.join;
var resolve = path.resolve;
var extname = path.extname;
var dirname = path.dirname;
var isAbsolute = path.isAbsolute;
var readCache = {};
/**
* Require cache.
*/
var cacheStore = {};
/**
* Require cache.
*/
var requires = {};
/**
* Clear the cache.
*
* @api public
*/
exports.clearCache = function() {
readCache = {};
cacheStore = {};
};
/**
* Conditionally cache `compiled` template based
* on the `options` filename and `.cache` boolean.
*
* @param {Object} options
* @param {Function} compiled
* @return {Function}
* @api private
*/
function cache(options, compiled) {
// cachable
if (compiled && options.filename && options.cache) {
delete readCache[options.filename];
cacheStore[options.filename] = compiled;
return compiled;
}
// check cache
if (options.filename && options.cache) {
return cacheStore[options.filename];
}
return compiled;
}
/**
* Read `path` with `options` with
* callback `(err, str)`. When `options.cache`
* is true the template string will be cached.
*
* @param {String} options
* @param {Function} cb
* @api private
*/
function read(path, options, cb) {
var str = readCache[path];
var cached = options.cache && str && typeof str === 'string';
// cached (only if cached is a string and not a compiled template function)
if (cached) return cb(null, str);
// read
fs.readFile(path, 'utf8', function(err, str) {
if (err) return cb(err);
// remove extraneous utf8 BOM marker
str = str.replace(/^\uFEFF/, '');
if (options.cache) readCache[path] = str;
cb(null, str);
});
}
/**
* Read `path` with `options` with
* callback `(err, str)`. When `options.cache`
* is true the partial string will be cached.
*
* @param {String} options
* @param {Function} fn
* @api private
*/
function readPartials(path, options, cb) {
if (!options.partials) return cb();
var partials = options.partials;
var keys = Object.keys(partials);
function next(index) {
if (index === keys.length) return cb(null);
var key = keys[index];
var partialPath = partials[key];
if (partialPath === undefined || partialPath === null || partialPath === false) {
return next(++index);
}
var file;
if (isAbsolute(partialPath)) {
if (extname(partialPath) !== '') {
file = partialPath;
} else {
file = join(partialPath + extname(path));
}
} else {
file = join(dirname(path), partialPath + extname(path));
}
read(file, options, function(err, str) {
if (err) return cb(err);
options.partials[key] = str;
next(++index);
});
}
next(0);
}
/**
* promisify
*/
function promisify(cb, fn) {
return new Promise(function(resolve, reject) {
cb = cb || function(err, html) {
if (err) {
return reject(err);
}
resolve(html);
};
fn(cb);
});
}
/**
* fromStringRenderer
*/
function fromStringRenderer(name) {
return function(path, options, cb) {
options.filename = path;
return promisify(cb, function(cb) {
readPartials(path, options, function(err) {
if (err) return cb(err);
if (cache(options)) {
exports[name].render('', options, cb);
} else {
read(path, options, function(err, str) {
if (err) return cb(err);
exports[name].render(str, options, cb);
});
}
});
});
};
}
/**
* velocity support.
*/
exports.velocityjs = fromStringRenderer('velocityjs');
/**
* velocity string support.
*/
exports.velocityjs.render = function(str, options, cb) {
return promisify(cb, function(cb) {
var engine = requires.velocityjs || (requires.velocityjs = require('velocityjs'));
try {
options.locals = options;
cb(null, engine.render(str, options).trimLeft());
} catch (err) {
cb(err);
}
});
};
/**
* Liquid support.
*/
exports.liquid = fromStringRenderer('liquid');
/**
* Liquid string support.
*/
/**
* Note that in order to get filters and custom tags we've had to push
* all user-defined locals down into @locals. However, just to make things
* backwards-compatible, any property of `options` that is left after
* processing and removing `locals`, `meta`, `filters`, `customTags` and
* `includeDir` will also become a local.
*/
function _renderTinyliquid(engine, str, options, cb) {
var context = engine.newContext();
var k;
/**
* Note that there's a bug in the library that doesn't allow us to pass
* the locals to newContext(), hence looping through the keys:
*/
if (options.locals) {
for (k in options.locals) {
context.setLocals(k, options.locals[k]);
}
delete options.locals;
}
if (options.meta) {
context.setLocals('page', options.meta);
delete options.meta;
}
/**
* Add any defined filters:
*/
if (options.filters) {
for (k in options.filters) {
context.setFilter(k, options.filters[k]);
}
delete options.filters;
}
/**
* Set up a callback for the include directory:
*/
var includeDir = options.includeDir || process.cwd();
context.onInclude(function(name, callback) {
var extname = path.extname(name) ? '' : '.liquid';
var filename = path.resolve(includeDir, name + extname);
fs.readFile(filename, {encoding: 'utf8'}, function(err, data) {
if (err) return callback(err);
callback(null, engine.parse(data));
});
});
delete options.includeDir;
/**
* The custom tag functions need to have their results pushed back
* through the parser, so set up a shim before calling the provided
* callback:
*/
var compileOptions = {
customTags: {}
};
if (options.customTags) {
var tagFunctions = options.customTags;
for (k in options.customTags) {
/*Tell jshint there's no problem with having this function in the loop */
/*jshint -W083 */
compileOptions.customTags[k] = function(context, name, body) {
var tpl = tagFunctions[name](body.trim());
context.astStack.push(engine.parse(tpl));
};
/*jshint +W083 */
}
delete options.customTags;
}
/**
* Now anything left in `options` becomes a local:
*/
for (k in options) {
context.setLocals(k, options[k]);
}
/**
* Finally, execute the template:
*/
var tmpl = cache(context) || cache(context, engine.compile(str, compileOptions));
tmpl(context, cb);
}
exports.liquid.render = function(str, options, cb) {
return promisify(cb, function(cb) {
var engine = requires.liquid;
var Liquid;
try {
// set up tinyliquid engine
engine = requires.liquid = require('tinyliquid');
// use tinyliquid engine
_renderTinyliquid(engine, str, options, cb);
return;
} catch (err) {
// set up liquid-node engine
try {
Liquid = requires.liquid = require('liquid-node');
engine = new Liquid.Engine();
} catch (err) {
throw err;
}
}
// use liquid-node engine
try {
var locals = options.locals || {};
if (options.meta) {
locals.pages = options.meta;
delete options.meta;
}
/**
* Add any defined filters:
*/
if (options.filters) {
engine.registerFilters(options.filters);
delete options.filters;
}
/**
* Set up a callback for the include directory:
*/
var includeDir = options.includeDir || process.cwd();
engine.fileSystem = new Liquid.LocalFileSystem(includeDir, 'liquid');
delete options.includeDir;
/**
* The custom tag functions need to have their results pushed back
* through the parser, so set up a shim before calling the provided
* callback:
*/
if (options.customTags) {
var tagFunctions = options.customTags;
for (k in options.customTags) {
engine.registerTag(k, tagFunctions[k]);
}
delete options.customTags;
}
/**
* Now anything left in `options` becomes a local:
*/
for (var k in options) {
locals[k] = options[k];
}
/**
* Finally, execute the template:
*/
return engine
.parseAndRender(str, locals)
.nodeify(function(err, result) {
if (err) {
throw new Error(err);
} else {
return cb(null, result);
}
});
} catch (err) {
cb(err);
}
});
};
/**
* Jade support.
*/
exports.jade = function(path, options, cb) {
return promisify(cb, function(cb) {
var engine = requires.jade;
if (!engine) {
try {
engine = requires.jade = require('jade');
} catch (err) {
try {
engine = requires.jade = require('then-jade');
} catch (otherError) {
throw err;
}
}
}
try {
var tmpl = cache(options) || cache(options, engine.compileFile(path, options));
cb(null, tmpl(options));
} catch (err) {
cb(err);
}
});
};
/**
* Jade string support.
*/
exports.jade.render = function(str, options, cb) {
return promisify(cb, function(cb) {
var engine = requires.jade;
if (!engine) {
try {
engine = requires.jade = require('jade');
} catch (err) {
try {
engine = requires.jade = require('then-jade');
} catch (otherError) {
throw err;
}
}
}
try {
var tmpl = cache(options) || cache(options, engine.compile(str, options));
cb(null, tmpl(options));
} catch (err) {
cb(err);
}
});
};
/**
* Dust support.
*/
exports.dust = fromStringRenderer('dust');
/**
* Dust string support.
*/
exports.dust.render = function(str, options, cb) {
return promisify(cb, function(cb) {
var engine = requires.dust;
if (!engine) {
try {
engine = requires.dust = require('dust');
} catch (err) {
try {
engine = requires.dust = require('dustjs-helpers');
} catch (err) {
engine = requires.dust = require('dustjs-linkedin');
}
}
}
var ext = 'dust';
var views = '.';
if (options) {
if (options.ext) ext = options.ext;
if (options.views) views = options.views;
if (options.settings && options.settings.views) views = options.settings.views;
}
if (!options || (options && !options.cache)) engine.cache = {};
engine.onLoad = function(path, callback) {
if (extname(path) === '') path += '.' + ext;
if (path[0] !== '/') path = views + '/' + path;
read(path, options, callback);
};
try {
var templateName;
if (options.filename) {
templateName = options.filename.replace(new RegExp('^' + views + '/'), '').replace(new RegExp('\\.' + ext), '');
}
var tmpl = cache(options) || cache(options, engine.compileFn(str, templateName));
tmpl(options, cb);
} catch (err) {
cb(err);
}
});
};
/**
* Swig support.
*/
exports.swig = fromStringRenderer('swig');
/**
* Swig string support.
*/
exports.swig.render = function(str, options, cb) {
return promisify(cb, function(cb) {
var engine = requires.swig;
if (!engine) {
try {
engine = requires.swig = require('swig');
} catch (err) {
try {
engine = requires.swig = require('swig-templates');
} catch (otherError) {
throw err;
}
}
}
try {
if (options.cache === true) options.cache = 'memory';
engine.setDefaults({ cache: options.cache });
var tmpl = cache(options) || cache(options, engine.compile(str, options));
cb(null, tmpl(options));
} catch (err) {
cb(err);
}
});
};
/**
* Atpl support.
*/
exports.atpl = fromStringRenderer('atpl');
/**
* Atpl string support.
*/
exports.atpl.render = function(str, options, cb) {
return promisify(cb, function(cb) {
var engine = requires.atpl || (requires.atpl = require('atpl'));
try {
var tmpl = cache(options) || cache(options, engine.compile(str, options));
cb(null, tmpl(options));
} catch (err) {
cb(err);
}
});
};
/**
* Liquor support,
*/
exports.liquor = fromStringRenderer('liquor');
/**
* Liquor string support.
*/
exports.liquor.render = function(str, options, cb) {
return promisify(cb, function(cb) {
var engine = requires.liquor || (requires.liquor = require('liquor'));
try {
var tmpl = cache(options) || cache(options, engine.compile(str, options));
cb(null, tmpl(options));
} catch (err) {
cb(err);
}
});
};
/**
* Twig support.
*/
exports.twig = fromStringRenderer('twig');
/**
* Twig string support.
*/
exports.twig.render = function(str, options, cb) {
return promisify(cb, function(cb) {
var engine = requires.twig || (requires.twig = require('twig').twig);
var templateData = {
data: str
};
try {
var tmpl = cache(templateData) || cache(templateData, engine(templateData));
cb(null, tmpl.render(options));
} catch (err) {
cb(err);
}
});
};
/**
* EJS support.
*/
exports.ejs = fromStringRenderer('ejs');
/**
* EJS string support.
*/
exports.ejs.render = function(str, options, cb) {
return promisify(cb, function(cb) {
var engine = requires.ejs || (requires.ejs = require('ejs'));
try {
var tmpl = cache(options) || cache(options, engine.compile(str, options));
cb(null, tmpl(options));
} catch (err) {
cb(err);
}
});
};
/**
* Eco support.
*/
exports.eco = fromStringRenderer('eco');
/**
* Eco string support.
*/
exports.eco.render = function(str, options, cb) {
return promisify(cb, function(cb) {
var engine = requires.eco || (requires.eco = require('eco'));
try {
cb(null, engine.render(str, options));
} catch (err) {
cb(err);
}
});
};
/**
* Jazz support.
*/
exports.jazz = fromStringRenderer('jazz');
/**
* Jazz string support.
*/
exports.jazz.render = function(str, options, cb) {
return promisify(cb, function(cb) {
var engine = requires.jazz || (requires.jazz = require('jazz'));
try {
var tmpl = cache(options) || cache(options, engine.compile(str, options));
tmpl.eval(options, function(str) {
cb(null, str);
});
} catch (err) {
cb(err);
}
});
};
/**
* JQTPL support.
*/
exports.jqtpl = fromStringRenderer('jqtpl');
/**
* JQTPL string support.
*/
exports.jqtpl.render = function(str, options, cb) {
return promisify(cb, function(cb) {
var engine = requires.jqtpl || (requires.jqtpl = require('jqtpl'));
try {
engine.template(str, str);
cb(null, engine.tmpl(str, options));
} catch (err) {
cb(err);
}
});
};
/**
* Haml support.
*/
exports.haml = fromStringRenderer('haml');
/**
* Haml string support.
*/
exports.haml.render = function(str, options, cb) {
return promisify(cb, function(cb) {
var engine = requires.haml || (requires.haml = require('hamljs'));
try {
options.locals = options;
cb(null, engine.render(str, options).trimLeft());
} catch (err) {
cb(err);
}
});
};
/**
* Hamlet support.
*/
exports.hamlet = fromStringRenderer('hamlet');
/**
* Hamlet string support.
*/
exports.hamlet.render = function(str, options, cb) {
return promisify(cb, function(cb) {
var engine = requires.hamlet || (requires.hamlet = require('hamlet'));
try {
options.locals = options;
cb(null, engine.render(str, options).trimLeft());
} catch (err) {
cb(err);
}
});
};
/**
* Whiskers support.
*/
exports.whiskers = function(path, options, cb) {
return promisify(cb, function(cb) {
var engine = requires.whiskers || (requires.whiskers = require('whiskers'));
engine.__express(path, options, cb);
});
};
/**
* Whiskers string support.
*/
exports.whiskers.render = function(str, options, cb) {
return promisify(cb, function(cb) {
var engine = requires.whiskers || (requires.whiskers = require('whiskers'));
try {
cb(null, engine.render(str, options));
} catch (err) {
cb(err);
}
});
};
/**
* Coffee-HAML support.
*/
exports['haml-coffee'] = fromStringRenderer('haml-coffee');
/**
* Coffee-HAML string support.
*/
exports['haml-coffee'].render = function(str, options, cb) {
return promisify(cb, function(cb) {
var engine = requires['haml-coffee'] || (requires['haml-coffee'] = require('haml-coffee'));
try {
var tmpl = cache(options) || cache(options, engine.compile(str, options));
cb(null, tmpl(options));
} catch (err) {
cb(err);
}
});
};
/**
* Hogan support.
*/
exports.hogan = fromStringRenderer('hogan');
/**
* Hogan string support.
*/
exports.hogan.render = function(str, options, cb) {
return promisify(cb, function(cb) {
var engine = requires.hogan || (requires.hogan = require('hogan.js'));
try {
var tmpl = cache(options) || cache(options, engine.compile(str, options));
cb(null, tmpl.render(options, options.partials));
} catch (err) {
cb(err);
}
});
};
/**
* templayed.js support.
*/
exports.templayed = fromStringRenderer('templayed');
/**
* templayed.js string support.
*/
exports.templayed.render = function(str, options, cb) {
return promisify(cb, function(cb) {
var engine = requires.templayed || (requires.templayed = require('templayed'));
try {
var tmpl = cache(options) || cache(options, engine(str));
cb(null, tmpl(options));
} catch (err) {
cb(err);
}
});
};
/**
* Handlebars support.
*/
exports.handlebars = fromStringRenderer('handlebars');
/**
* Handlebars string support.
*/
exports.handlebars.render = function(str, options, cb) {
return promisify(cb, function(cb) {
var engine = requires.handlebars || (requires.handlebars = require('handlebars'));
try {
for (var partial in options.partials) {
engine.registerPartial(partial, options.partials[partial]);
}
for (var helper in options.helpers) {
engine.registerHelper(helper, options.helpers[helper]);
}
var tmpl = cache(options) || cache(options, engine.compile(str, options));
cb(null, tmpl(options));
} catch (err) {
cb(err);
}
});
};
/**
* Underscore support.
*/
exports.underscore = fromStringRenderer('underscore');
/**
* Underscore string support.
*/
exports.underscore.render = function(str, options, cb) {
return promisify(cb, function(cb) {
var engine = requires.underscore || (requires.underscore = require('underscore'));
try {
for (var partial in options.partials) {
options.partials[partial] = engine.template(options.partials[partial]);
}
var tmpl = cache(options) || cache(options, engine.template(str, null, options));
cb(null, tmpl(options).replace(/\n$/, ''));
} catch (err) {
cb(err);
}
});
};
/**
* Lodash support.
*/
exports.lodash = fromStringRenderer('lodash');
/**
* Lodash string support.
*/
exports.lodash.render = function(str, options, cb) {
return promisify(cb, function(cb) {
var engine = requires.lodash || (requires.lodash = require('lodash'));
try {
var tmpl = cache(options) || cache(options, engine.template(str, options));
cb(null, tmpl(options).replace(/\n$/, ''));
} catch (err) {
cb(err);
}
});
};
/**
* Pug support. (formerly Jade)
*/
exports.pug = function(path, options, cb) {
return promisify(cb, function(cb) {
var engine = requires.pug;
if (!engine) {
try {
engine = requires.pug = require('pug');
} catch (err) {
try {
engine = requires.pug = require('then-pug');
} catch (otherError) {
throw err;
}
}
}
try {
var tmpl = cache(options) || cache(options, engine.compileFile(path, options));
cb(null, tmpl(options));
} catch (err) {
cb(err);
}
});
};
/**
* Pug string support.
*/
exports.pug.render = function(str, options, cb) {
return promisify(cb, function(cb) {
var engine = requires.pug;
if (!engine) {
try {
engine = requires.pug = require('pug');
} catch (err) {
try {
engine = requires.pug = require('then-pug');
} catch (otherError) {
throw err;
}
}
}
try {
var tmpl = cache(options) || cache(options, engine.compile(str, options));
cb(null, tmpl(options));
} catch (err) {
cb(err);
}
});
};
/**
* QEJS support.
*/
exports.qejs = fromStringRenderer('qejs');
/**
* QEJS string support.
*/
exports.qejs.render = function(str, options, cb) {
return promisify(cb, function(cb) {
try {
var engine = requires.qejs || (requires.qejs = require('qejs'));
engine.render(str, options).then(function(result) {
cb(null, result);
}, function(err) {
cb(err);
}).done();
} catch (err) {
cb(err);
}
});
};
/**
* Walrus support.
*/
exports.walrus = fromStringRenderer('walrus');
/**
* Walrus string support.
*/
exports.walrus.render = function(str, options, cb) {
return promisify(cb, function(cb) {
var engine = requires.walrus || (requires.walrus = require('walrus'));
try {
var tmpl = cache(options) || cache(options, engine.parse(str));
cb(null, tmpl.compile(options));
} catch (err) {
cb(err);
}
});
};
/**
* Mustache support.
*/
exports.mustache = fromStringRenderer('mustache');
/**
* Mustache string support.
*/
exports.mustache.render = function(str, options, cb) {
return promisify(cb, function(cb) {
var engine = requires.mustache || (requires.mustache = require('mustache'));
try {
cb(null, engine.to_html(str, options, options.partials));
} catch (err) {
cb(err);
}
});
};
/**
* Just support.
*/
exports.just = function(path, options, cb) {
return promisify(cb, function(cb) {
var engine = requires.just;
if (!engine) {
var JUST = require('just');
engine = requires.just = new JUST();
}
engine.configure({ useCache: options.cache });
engine.render(path, options, cb);
});
};
/**
* Just string support.
*/
exports.just.render = function(str, options, cb) {
return promisify(cb, function(cb) {
var JUST = require('just');
var engine = new JUST({ root: { page: str }});
engine.render('page', options, cb);
});
};
/**
* ECT support.
*/
exports.ect = function(path, options, cb) {
return promisify(cb, function(cb) {
var engine = requires.ect;
if (!engine) {
var ECT = require('ect');
engine = requires.ect = new ECT(options);
}
engine.configure({ cache: options.cache });
engine.render(path, options, cb);
});
};
/**
* ECT string support.
*/
exports.ect.render = function(str, options, cb) {
return promisify(cb, function(cb) {
var ECT = require('ect');
var engine = new ECT({ root: { page: str }});
engine.render('page', options, cb);
});
};
/**
* mote support.
*/
exports.mote = fromStringRenderer('mote');
/**
* mote string support.
*/
exports.mote.render = function(str, options, cb) {
return promisify(cb, function(cb) {
var engine = requires.mote || (requires.mote = require('mote'));
try {
var tmpl = cache(options) || cache(options, engine.compile(str));
cb(null, tmpl(options));
} catch (err) {
cb(err);
}
});
};
/**
* Toffee support.
*/
exports.toffee = function(path, options, cb) {
return promisify(cb, function(cb) {
var toffee = requires.toffee || (requires.toffee = require('toffee'));
toffee.__consolidate_engine_render(path, options, cb);
});
};
/**
* Toffee string support.
*/
exports.toffee.render = function(str, options, cb) {
return promisify(cb, function(cb) {
var engine = requires.toffee || (requires.toffee = require('toffee'));
try {
engine.str_render(str, options, cb);
} catch (err) {
cb(err);
}
});
};
/**
* doT support.
*/
exports.dot = fromStringRenderer('dot');
/**
* doT string support.
*/
exports.dot.render = function(str, options, cb) {
return promisify(cb, function(cb) {
var engine = requires.dot || (requires.dot = require('dot'));
var extend = (requires.extend || (requires.extend = require('util')._extend));
try {
var settings = {};
settings = extend(settings, engine.templateSettings);
settings = extend(settings, options ? options.dot : {});
var tmpl = cache(options) || cache(options, engine.template(str, settings, options));
cb(null, tmpl(options));
} catch (err) {
cb(err);
}
});
};
/**
* bracket support.
*/
exports.bracket = fromStringRenderer('bracket');
/**
* bracket string support.
*/
exports.bracket.render = function(str, options, cb) {
return promisify(cb, function(cb) {
var engine = requires.bracket || (requires.bracket = require('bracket-template'));
try {
var tmpl = cache(options) || cache(options, engine.default.compile(str, options));
cb(null, tmpl(options));
} catch (err) {
cb(err);
}
});
};
/**
* Ractive support.
*/
exports.ractive = fromStringRenderer('ractive');
/**
* Ractive string support.
*/
exports.ractive.render = function(str, options, cb) {
return promisify(cb, function(cb) {
var Engine = requires.ractive || (requires.ractive = require('ractive'));
var template = cache(options) || cache(options, Engine.parse(str));
options.template = template;
if (options.data === null || options.data === undefined) {
var extend = (requires.extend || (requires.extend = require('util')._extend));
// Shallow clone the options object
options.data = extend({}, options);
// Remove consolidate-specific properties from the clone
var i;
var length;
var properties = ['template', 'filename', 'cache', 'partials'];
for (i = 0, length = properties.length; i < length; i++) {
var property = properties[i];
delete options.data[property];
}
}
try {
cb(null, new Engine(options).toHTML());
} catch (err) {
cb(err);
}
});
};
/**
* Nunjucks support.
*/
exports.nunjucks = fromStringRenderer('nunjucks');
/**
* Nunjucks string support.
*/
exports.nunjucks.render = function(str, options, cb) {
return promisify(cb, function(cb) {
try {
var engine = options.nunjucksEnv || requires.nunjucks || (requires.nunjucks = require('nunjucks'));
var env = engine;
// deprecated fallback support for express
// <https://github.com/tj/consolidate.js/pull/152>
// <https://github.com/tj/consolidate.js/pull/224>
if (options.settings && options.settings.views) {
env = engine.configure(options.settings.views);
} else if (options.nunjucks && options.nunjucks.configure) {
env = engine.configure.apply(engine, options.nunjucks.configure);
}
//
// because `renderString` does not initiate loaders
// we must manually create a loader for it based off
// either `options.settings.views` or `options.nunjucks` or `options.nunjucks.root`
//
// <https://github.com/mozilla/nunjucks/issues/730>
// <https://github.com/crocodilejs/node-email-templates/issues/182>
//
// so instead we simply check if we passed a custom loader
// otherwise we create a simple file based loader
if (options.loader) {
env = new engine.Environment(options.loader);
} else if (options.settings && options.settings.views) {
env = new engine.Environment(
new engine.FileSystemLoader(options.settings.views)
);
} else if (options.nunjucks && options.nunjucks.loader) {
if (typeof options.nunjucks.loader === 'string') {
env = new engine.Environment(new engine.FileSystemLoader(options.nunjucks.loader));
} else {
env = new engine.Environment(
new engine.FileSystemLoader(
options.nunjucks.loader[0],
options.nunjucks.loader[1]
)
);
}
}
env.renderString(str, options, cb);
} catch (err) {
throw cb(err);
}
});
};
/**
* HTMLing support.
*/
exports.htmling = fromStringRenderer('htmling');
/**
* HTMLing string support.
*/
exports.htmling.render = function(str, options, cb) {
return promisify(cb, function(cb) {
var engine = requires.htmling || (requires.htmling = require('htmling'));
try {
var tmpl = cache(options) || cache(options, engine.string(str));
cb(null, tmpl.render(options));
} catch (err) {
cb(err);
}
});
};
/**
* Rendering function
*/
function requireReact(module, filename) {
var babel = requires.babel || (requires.babel = require('babel-core'));
var compiled = babel.transformFileSync(filename, { presets: [ 'react' ] }).code;
return module._compile(compiled, filename);
}
exports.requireReact = requireReact;
/**
* Converting a string into a node module.
*/
function requireReactString(src, filename) {
var babel = requires.babel || (requires.babel = require('babel-core'));
if (!filename) filename = '';
var m = new module.constructor();
filename = filename || '';
// Compile Using React
var compiled = babel.transform(src, { presets: [ 'react' ] }).code;
// Compile as a module
m.paths = module.paths;
m._compile(compiled, filename);
return m.exports;
}
/**
* A naive helper to replace {{tags}} with options.tags content
*/
function reactBaseTmpl(data, options) {
var exp;
var regex;
// Iterates through the keys in file object
// and interpolate / replace {{key}} with it's value
for (var k in options) {
if (options.hasOwnProperty(k)) {
exp = '{{' + k + '}}';
regex = new RegExp(exp, 'g');
if (data.match(regex)) {
data = data.replace(regex, options[k]);
}
}
}
return data;
}
/**
* Plates Support.
*/
exports.plates = fromStringRenderer('plates');
/**
* Plates string support.
*/
exports.plates.render = function(str, options, cb) {
return promisify(cb, function(cb) {
var engine = requires.plates || (requires.plates = require('plates'));
var map = options.map || undefined;
try {
var tmpl = engine.bind(str, options, map);
cb(null, tmpl);
} catch (err) {
cb(err);
}
});
};
/**
* The main render parser for React bsaed templates
*/
function reactRenderer(type) {
if (require.extensions) {
// Ensure JSX is transformed on require
if (!require.extensions['.jsx']) {
require.extensions['.jsx'] = requireReact;
}
// Supporting .react extension as well as test cases
// Using .react extension is not recommended.
if (!require.extensions['.react']) {
require.extensions['.react'] = requireReact;
}
}
// Return rendering fx
return function(str, options, cb) {
return promisify(cb, function(cb) {
// React Import
var ReactDOM = requires.ReactDOM || (requires.ReactDOM = require('react-dom/server'));
var react = requires.react || (requires.react = require('react'));
// Assign HTML Base
var base = options.base;
delete options.base;
var enableCache = options.cache;
delete options.cache;
var isNonStatic = options.isNonStatic;
delete options.isNonStatic;
// Start Conversion
try {
var Code;
var Factory;
var baseStr;
var content;
var parsed;
if (!cache(options)) {
// Parsing
if (type === 'path') {
var path = resolve(str);
delete require.cache[path];
Code = require(path);
} else {
Code = requireReactString(str);
}
Factory = cache(options, react.createFactory(Code));
} else {
Factory = cache(options);
}
parsed = new Factory(options);
content = (isNonStatic) ? ReactDOM.renderToString(parsed) : ReactDOM.renderToStaticMarkup(parsed);
if (base) {
baseStr = readCache[str] || fs.readFileSync(resolve(base), 'utf8');
if (enableCache) {
readCache[str] = baseStr;
}
options.content = content;
content = reactBaseTmpl(baseStr, options);
}
cb(null, content);
} catch (err) {
cb(err);
}
});
};
}
/**
* React JS Support
*/
exports.react = reactRenderer('path');
/**
* React JS string support.
*/
exports.react.render = reactRenderer('string');
/**
* ARC-templates support.
*/
exports['arc-templates'] = fromStringRenderer('arc-templates');
/**
* ARC-templates string support.
*/
exports['arc-templates'].render = function(str, options, cb) {
var readFileWithOptions = Promise.promisify(read);
var consolidateFileSystem = {};
consolidateFileSystem.readFile = function(path) {
return readFileWithOptions(path, options);
};
return promisify(cb, function(cb) {
try {
var engine = requires['arc-templates'];
if (!engine) {
var Engine = require('arc-templates/dist/es5');
engine = requires['arc-templates'] = new Engine({ filesystem: consolidateFileSystem });
}
var compiler = cache(options) || cache(options, engine.compileString(str, options.filename));
compiler.then(function(func) { return func(options); })
.then(function(result) { cb(null, result.content); })
.catch(cb);
} catch (err) {
cb(err);
}
});
};
/**
* Vash support
*/
exports.vash = fromStringRenderer('vash');
/**
* Vash string support
*/
exports.vash.render = function(str, options, cb) {
return promisify(cb, function(cb) {
var engine = requires.vash || (requires.vash = require('vash'));
try {
// helper system : https://github.com/kirbysayshi/vash#helper-system
if (options.helpers) {
for (var key in options.helpers) {
if (!options.helpers.hasOwnProperty(key) || typeof options.helpers[key] !== 'function') {
continue;
}
engine.helpers[key] = options.helpers[key];
}
}
var tmpl = cache(options) || cache(options, engine.compile(str, options));
tmpl(options, function sealLayout(err, ctx) {
if (err) cb(err);
ctx.finishLayout();
cb(null, ctx.toString().replace(/\n$/, ''));
});
} catch (err) {
cb(err);
}
});
};
/**
* Slm support.
*/
exports.slm = fromStringRenderer('slm');
/**
* Slm string support.
*/
exports.slm.render = function(str, options, cb) {
return promisify(cb, function(cb) {
var engine = requires.slm || (requires.slm = require('slm'));
try {
var tmpl = cache(options) || cache(options, engine.compile(str, options));
cb(null, tmpl(options));
} catch (err) {
cb(err);
}
});
};
/**
* Marko support.
*/
exports.marko = function(path, options, cb) {
return promisify(cb, function(cb) {
var engine = requires.marko || (requires.marko = require('marko'));
options.writeToDisk = !!options.cache;
try {
var tmpl = cache(options) || cache(options, engine.load(path, options));
tmpl.renderToString(options, cb);
} catch (err) {
cb(err);
}
});
};
/**
* Marko string support.
*/
exports.marko.render = function(str, options, cb) {
return promisify(cb, function(cb) {
var engine = requires.marko || (requires.marko = require('marko'));
options.writeToDisk = !!options.cache;
options.filename = options.filename || 'string.marko';
try {
var tmpl = cache(options) || cache(options, engine.load(options.filename, str, options));
tmpl.renderToString(options, cb);
} catch (err) {
cb(err);
}
});
};
/**
* Teacup support.
*/
exports.teacup = function(path, options, cb) {
return promisify(cb, function(cb) {
var engine = requires.teacup || (requires.teacup = require('teacup/lib/express'));
require.extensions['.teacup'] = require.extensions['.coffee'];
if (path[0] !== '/') {
path = join(process.cwd(), path);
}
if (!options.cache) {
var callback = cb;
cb = function() {
delete require.cache[path];
callback.apply(this, arguments);
};
}
engine.renderFile(path, options, cb);
});
};
/**
* Teacup string support.
*/
exports.teacup.render = function(str, options, cb) {
var coffee = require('coffee-script');
var vm = require('vm');
var sandbox = {
module: {exports: {}},
require: require
};
return promisify(cb, function(cb) {
vm.runInNewContext(coffee.compile(str), sandbox);
var tmpl = sandbox.module.exports;
cb(null, tmpl(options));
});
};
/**
* expose the instance of the engine
*/
exports.requires = requires;