Allow passing additional redirects in the config

Author: RobbieTheWagner

README.md

@@ -21,9 +21,28 @@ ember install ember-cli-netlify
 Usage
 ------------------------------------------------------------------------------
 
-Just define a `.netlifyheaders` and/or a `.netlifyredirects` file in the root of your project and this
+### .netlifyheaders and/or .netlifyredirects
+
+There are a couple ways to use this addon. The first one is to define a `.netlifyheaders` 
+and/or a `.netlifyredirects` file in the root of your project and this
 addon will copy the output to `dist/_headers` and `dist/_redirects` respectively.
 
+### ember-cli-build.js
+
+The second way is to define an `ember-cli-netlify` hash in your `ember-cli-build.js`.
+You can combine these methods, and anything defined in the config hash will be
+appended to the existing files. Currently, only redirects are supported, not headers.
+
+```js
+'ember-cli-netlify': {
+  redirects: [
+    'https://blog.shipshape.io/* https://shipshape.io/blog/:splat 301!',
+    'https://blog.shipshape.io/* https://shipshape.io/blog/:splat 301!'
+  ]
+}
+```
+
+
 Contributing
 ------------------------------------------------------------------------------
 

index.js

@@ -5,12 +5,24 @@ const fs = require('fs-extra');
 module.exports = {
   name: require('./package').name,
   outputReady() {
+    const netlifyOptions = this.app.options['ember-cli-netlify'];
+
     if (fs.pathExistsSync('.netlifyheaders')) {
       fs.copySync('.netlifyheaders', 'dist/_headers', { clobber: true });
     }
 
     if (fs.pathExistsSync('.netlifyredirects')) {
       fs.copySync('.netlifyredirects', 'dist/_redirects', { clobber: true });
+    } else if (netlifyOptions && netlifyOptions.redirects) {
+      fs.writeFileSync('dist/_redirects');
+    }
+
+    if (netlifyOptions && netlifyOptions.redirects) {
+      const stream = fs.createWriteStream('dist/_redirects', { flags: 'a' });
+      netlifyOptions.redirects.forEach((redirect) => {
+        stream.write(`${redirect}\n`);
+      });
+      stream.end();
     }
   }
 };