feat: add optional host argument for model download (#56)

* feat(download-model): add optional host argument for model download

* feat: update optional host argument documentation for model download

---------

Co-authored-by: Kyrian Obikwelu <[email protected]>

Author: k99k5

docs/getting-started.md

@@ -73,6 +73,9 @@ Arguments:
       can use the shorthand `-q` instead of `--quantized`. Example: `--quantized=false`, `-q false`.
     - `--model-filename=<filename>`: Specify the exact model filename to download (without the `.onnx` suffix. Eg. "
       model" or "model_quantized".
+  - `--host=<remote_host>`: Choose a different model hub host. Instead of fetching models from the Hugging Face model
+    hub, you can use a different host. You can use a private model hub or mirror the original hub.
+    Eg. `--host=https://hf.co`
 
 The `download` command will download the model weights and save them to the cache directory. The next time you use the
 model, TransformersPHP will use the cached weights instead of downloading them again.

src/Commands/DownloadModelCommand.php

@@ -59,6 +59,14 @@ protected function configure(): void
             'The filename of the exact model weights version to download.',
             null
         );
+        
+        $this->addOption(
+            'host',
+            null,
+            InputOption::VALUE_OPTIONAL,
+            'The host to download the model from.',
+            null
+        );
 
     }
 
@@ -71,9 +79,11 @@ protected function execute(InputInterface $input, OutputInterface $output): int
         $quantized = filter_var($input->getOption('quantized'), FILTER_VALIDATE_BOOLEAN);
         $task = $input->getArgument('task');
         $modelFilename = $input->getOption('model-filename');
-
+        $host = $input->getOption('host') ?? Transformers::$remoteHost;
+        
         Transformers::setup()
             ->setCacheDir($cacheDir)
+            ->setRemoteHost(rtrim($host,'/'))
             ->apply();
 
         try {
@@ -152,4 +162,4 @@ protected function askToStar(InputInterface $input, OutputInterface $output): vo
             $output->writeln('✔ That\'s okay. You can always star the repo later.');
         }
     }
-}
+}