add browser build - closes #17

.gitignore

@@ -5,3 +5,4 @@ test/tmp
 *.cache
 /templates.json
 coverage
+dist

.npmignore

@@ -6,3 +6,4 @@ test
 benchmark
 Makefile
 .*
+dist

Makefile

@@ -6,7 +6,7 @@ export NODE_ENV = test
 .PHONY: clean test test-cov test-travis publish bench build
 
 clean:
-	rm -rf coverage templates.json test/tmp build
+	rm -rf coverage templates.json test/tmp dist
 
 test:
 	$(MOCHA_CMD)
@@ -16,7 +16,7 @@ bench:
 	node node_modules/matcha/bin/_matcha
 
 test-cov:
-	make clean
+	rm -rf coverage
 	node $(ISTANBUL_CMD) $(MOCHA_CMD) --
 	rm -rf test/tmp
 
@@ -25,22 +25,26 @@ test-travis:
 	if test -n "$$CODECLIMATE_REPO_TOKEN"; then codeclimate < coverage/lcov.info; fi
 
 build:
-	mkdir build
-	cd build
-	browserify lib/6to5/transform.js >6to5.js
-	uglifyjs 6to5.js >6to5.min.js
+	rm -rf dist
+	mkdir dist
+
+	node bin/cache-templates
+
+	browserify lib/6to5/transform.js -s to5 >dist/6to5.js
+	uglifyjs dist/6to5.js >dist/6to5.min.js
+
+	rm -rf templates.json
 
 publish:
-	make clean
-
 	rm -rf node_modules
 	npm install
 
 	node bin/cache-templates
 	make test
 
+	test -f templates.json
 	npm publish
 
 	# todo - auto-create tag
 
-	make clean
+	rm -rf templates.json

README.md

@@ -156,6 +156,22 @@ polyfill is also required negating the [polyfill caveat](#polyfill).
 require("6to5/register");
 ```
 
+## Browser
+
+You can build a browser version of the compiler by running the following in the
+6to5 directory:
+
+    $ make build
+
+This will output the files `dist/6to5.js` and `dist/6to5.min.js`.
+
+Just include one of those in the browser and access the transform method via the
+global `to5`.
+
+```javascript
+to5("class Test {}").code;
+```
+
 ## Modules
 
 6to5 modules compile straight to CommonJS, because of this various liberties are

lib/6to5/util.js

@@ -201,11 +201,11 @@ exports.repeat = function (width, cha) {
   return new Array(width + 1).join(cha);
 };
 
-var templatesCacheLoc = __dirname + "/../../templates.json";
+try {
+  exports.templates = require("../../templates.json");
+} catch (err) {
+  if (err.code !== "MODULE_NOT_FOUND") throw err;
 
-if (fs.existsSync(templatesCacheLoc)) {
-  exports.templates = require(templatesCacheLoc);
-} else {
   exports.templates = {};
 
   var templatesLoc = __dirname + "/templates";