1 files changed, 144 insertions, 0 deletions
diff --git a/lib/precompiler.js b/lib/precompiler.js
new file mode 100644
index 0000000..bae923c
--- /dev/null
+++ b/lib/precompiler.js
@@ -0,0 +1,144 @@
+
+var fs = require('fs'),
+    Handlebars = require('./index'),
+    basename = require('path').basename,
+    uglify = require('uglify-js');
+
+module.exports.cli = function(opts) {
+  if (opts.version) {
+    console.log(Handlebars.VERSION);
+    return;
+  }
+
+  var template = [0];
+  if (!opts.templates.length) {
+    throw new Handlebars.Exception('Must define at least one template or directory.');
+  }
+
+  opts.templates.forEach(function(template) {
+    try {
+      fs.statSync(template);
+    } catch (err) {
+      throw new Handlebars.Exception('Unable to open template file "' + template + '"');
+    }
+  });
+
+  if (opts.simple && opts.min) {
+    throw new Handlebars.Exception('Unable to minimze simple output');
+  }
+  if (opts.simple && (opts.templates.length !== 1 || fs.statSync(opts.templates[0]).isDirectory())) {
+    throw new Handlebars.Exception('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;
+    }
+  }
+
+  // Build file extension pattern
+  var extension = opts.extension.replace(/[\\^$*+?.():=!|{}\-\[\]]/g, function(arg) { return '\\' + arg; });
+  extension = new RegExp('\\.' + extension + '$');
+
+  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);
+      }
+
+      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, '');
+
+      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');
+      }
+    }
+  }
+
+  opts.templates.forEach(function(template) {
+    processTemplate(template, opts.root, true);
+  });
+
+  // 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('');
+
+  if (opts.min) {
+    output = uglify.minify(output, {fromString: true}).code;
+  }
+
+  if (opts.output) {
+    fs.writeFileSync(opts.output, output, 'utf8');
+  } else {
+    console.log(output);
+  }
+};