auto detect transform (#126)

Author: yoshuawuyts

README.md

@@ -36,9 +36,9 @@ const tree = html`
 document.body.appendChild(tree)
 ```
 
-Compile with browserify using `-t sheetify/transform`:
+Compile with browserify using `-t sheetify`:
 ```sh
-$ browserify -t sheetify/transform index.js > bundle.js
+$ browserify -t sheetify index.js > bundle.js
 ```
 
 CSS classes are namespaced based on the content hash:
@@ -133,7 +133,7 @@ To write the compiled CSS to a separate file, rather than keep it in the
 bundle use [css-extract][2]:
 ```sh
 $ browserify index.js \
-  -t [ sheetify/transform ] \
+  -t [ sheetify ] \
   -p [ css-extract -o bundle.css ] index.js \
   -o bundle.js
 ```
@@ -164,9 +164,9 @@ const tree = html`
 document.body.appendChild(tree)
 ```
 
-Compile with browserify using `-t [ sheetify/transform -u sheetify-cssnext ]`:
+Compile with browserify using `-t [ sheetify -u sheetify-cssnext ]`:
 ```sh
-$ browserify -t [ sheetify/transform -u sheetify-cssnext ] index.js > bundle.js
+$ browserify -t [ sheetify -u sheetify-cssnext ] index.js > bundle.js
 ```
 
 Transforms the CSS into:
@@ -185,7 +185,7 @@ The following plugins are available:
 Browserify transforms accept either flags from the command line using
 [subargs](https://github.com/substack/subarg):
 ```sh
-$ browserify -t [ sheetify/transform -u sheetify-cssnext ] index.js > bundle.js
+$ browserify -t [ sheetify -u sheetify-cssnext ] index.js > bundle.js
 ```
 
 Or the equivalent options by passing in a configuration object in the
@@ -194,7 +194,7 @@ JavaScript API:
 const browserify = require('browserify')
 
 const b = browserify(path.join(__dirname, 'transform/source.js'))
-b.transform('sheetify/transform', { use: [ 'sheetify-cssnext' ] })
+b.transform('sheetify', { use: [ 'sheetify-cssnext' ] })
 b.bundle().pipe(process.stdout)
 ```
 

index.js

@@ -16,6 +16,12 @@ module.exports.getPrefix = getPrefix
 // transform css
 // (str, str, obj?, fn) -> str
 function sheetify (src, filename, options, done) {
+  // browserify transform
+  if (typeof src === 'string' && !/\n/.test(src) && filename && filename._flags) {
+    var args = Array.prototype.slice.apply(arguments)
+    return require('./transform.js').apply(this, args)
+  }
+
   // handle tagged template calls directly from Node
   const isTemplate = Array.isArray(src)
   if (isTemplate) src = src.join('')

test/import.js

@@ -5,7 +5,7 @@ const test = require('tape')
 const path = require('path')
 const fs = require('fs')
 
-const sheetify = require(path.join(__dirname, '../transform'))
+const sheetify = require('../')
 
 test('npm import', function (t) {
   t.test('should import npm packages', function (t) {

test/json.js

@@ -2,14 +2,14 @@ const test = require('tape')
 const join = require('path').join
 const browserify = require('browserify')
 
-const transform = require('../transform')
+const sheetify = require('..')
 
 test('JSON files', function (t) {
   t.plan(2)
 
   browserify()
     .add(join(__dirname, 'fixtures', './example.json'))
-    .transform(transform)
+    .transform(sheetify)
     .bundle(function (err, code) {
       if (err) return t.end(err)
       code = String(code)

test/plugins.js

@@ -5,7 +5,7 @@ const test = require('tape')
 const path = require('path')
 const fs = require('fs')
 
-const sheetify = require(path.join(__dirname, '../transform'))
+const sheetify = require('../')
 
 test('plugins', function (t) {
   t.test('should transform CSS', function (t) {

test/prefix.js

@@ -7,7 +7,6 @@ const fs = require('fs')
 const vm = require('vm')
 const cssResolve = require('style-resolve').sync
 
-const transform = require('../transform')
 const sheetify = require('..')
 
 test('prefix', function (t) {
@@ -48,7 +47,7 @@ test('prefix', function (t) {
     const bOpts = { browserField: false }
     const bpath = path.join(__dirname, 'fixtures/prefix-inline-source.js')
     browserify(bpath, bOpts)
-      .transform(transform)
+      .transform(sheetify)
       .transform(function (file) {
         return through(function (buf, enc, next) {
           const str = buf.toString('utf8')
@@ -88,7 +87,7 @@ test('prefix', function (t) {
     const bOpts = { browserField: false }
     const bpath = path.join(__dirname, 'fixtures/prefix-import-source.js')
     browserify(bpath, bOpts)
-      .transform(transform)
+      .transform(sheetify)
       .transform(function (file) {
         return through(function (buf, enc, next) {
           const str = buf.toString('utf8')