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Turn the precompile script into a wrapper around a module. #795
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,140 @@ | ||
|
|
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| var fs = require('fs'), | ||
| handlebars = require('../../lib'), | ||
| basename = require('path').basename, | ||
| uglify = require('uglify-js'); | ||
|
|
||
| module.exports = function(opts) { | ||
|
|
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| var template = [0]; | ||
| if (!opts.templates.length) { | ||
| throw 'Must define at least one template or directory.'; | ||
| } | ||
|
|
||
| opts.templates.forEach(function(template) { | ||
| try { | ||
| fs.statSync(template); | ||
| } catch (err) { | ||
| throw 'Unable to open template file "' + template + '"'; | ||
| } | ||
| }); | ||
|
|
||
| if (opts.simple && opts.min) { | ||
| throw 'Unable to minimze simple output'; | ||
| } | ||
| if (opts.simple && (opts.templates.length !== 1 || fs.statSync(opts.templates[0]).isDirectory())) { | ||
| throw '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; | ||
| } | ||
| } | ||
|
|
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| // Build file extension pattern | ||
| var extension = opts.extension.replace(/[\\^$*+?.():=!|{}\-\[\]]/g, function(arg) { return '\\' + arg; }); | ||
| extension = new RegExp('\\.' + extension + '$'); | ||
|
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| 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, explicit) { | ||
| 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 if (explicit || extension.test(path)) { | ||
| var data = fs.readFileSync(path, 'utf8'); | ||
|
|
||
| if (opts.bom && data.indexOf('\uFEFF') === 0) { | ||
| data = data.substring(1); | ||
| } | ||
|
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| 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, ''); | ||
|
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| 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'); | ||
| } | ||
| } | ||
| } | ||
|
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| opts.templates.forEach(function(template) { | ||
| processTemplate(template, opts.root, true); | ||
| }); | ||
|
|
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| // 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(''); | ||
|
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| if (opts.min) { | ||
| output = uglify.minify(output, {fromString: true}).code; | ||
| } | ||
|
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| if (opts.output) { | ||
| fs.writeFileSync(opts.output, output, 'utf8'); | ||
| } else { | ||
| console.log(output); | ||
| } | ||
| }; | ||
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How can we test this? We should have some tests on this if we going to expose an API.