Add support for custom binary/browser script to make adjustments easi…

…er/possible. (#162)

README.md

@@ -99,6 +99,15 @@ Browsershot::html('Foo')
   ->setNodeModulePath("/path/to/my/project/node_modules/")
 ```
 
+### Custom binary path
+
+If you want to use an alternative script source you can set it using the `setBinPath` method.
+
+```php
+Browsershot::html('Foo')
+  ->setBinPath("/path/to/my/project/my_script.js")
+```
+
 ### Custom chrome/chromium executable path
 
 If you want to use an alternative chrome or chromium executable from what is installed by puppeteer you can set it using the `setChromePath` method.

src/Browsershot.php

@@ -16,6 +16,7 @@ class Browsershot
     protected $npmBinary = null;
     protected $nodeModulePath = null;
     protected $includePath = '$PATH:/usr/local/bin';
+    protected $binPath = null;
     protected $html = '';
     protected $noSandbox = false;
     protected $proxyServer = '';
@@ -79,6 +80,13 @@ public function setIncludePath(string $includePath)
         return $this;
     }
 
+    public function setBinPath(string $binPath)
+    {
+        $this->binPath = $binPath;
+
+        return $this;
+    }
+
     public function setNodeModulePath(string $nodeModulePath)
     {
         $this->nodeModulePath = $nodeModulePath;
@@ -471,7 +479,7 @@ protected function callBrowser(array $command)
 
         $setNodePathCommand = $this->getNodePathCommand($nodeBinary);
 
-        $binPath = __DIR__.'/../bin/browser.js';
+        $binPath = $this->binPath ?: __DIR__.'/../bin/browser.js';
 
         $fullCommand =
             $setIncludePathCommand.' '

tests/BrowsershotTest.php

@@ -461,7 +461,7 @@ public function it_can_set_another_node_binary()
         $targetPath = __DIR__.'/temp/testScreenshot.png';
 
         Browsershot::html('Foo')
-            ->setNodeBinary('non-existant/bin/wich/causes/an/exception')
+            ->setBinPath(__DIR__.'/../browser.js')
             ->save($targetPath);
     }
 
@@ -477,6 +477,18 @@ public function it_can_set_another_chrome_executable_path()
             ->save($targetPath);
     }
 
+    /** @test */
+    public function it_can_set_another_bin_path()
+    {
+        $this->expectException(ProcessFailedException::class);
+
+        $targetPath = __DIR__.'/temp/testScreenshot.png';
+
+        Browsershot::html('Foo')
+                   ->setChromePath('non-existant/bin/wich/causes/an/exception')
+                   ->save($targetPath);
+    }
+
     /** @test */
     public function it_can_set_the_include_path_and_still_works()
     {