Add phar building, improve error handling

.gitignore

@@ -1 +1,2 @@
-vendor/
+vendor/
+build/

README.md

@@ -14,6 +14,8 @@ Supports generating an OpenAPI spec in `JSON` or `yaml`.
 
 `composer require --dev dsuurlant/response2schema`
 
+Or download the phar from the [Releases page](https://github.com/dsuurlant/response2schema/releases).
+
 # Usage
 
 Just point Response2Schema to your input json file, and tell it where to put the output OpenAPI spec.
@@ -22,6 +24,10 @@ It will automatically format it to json or yaml based on the extension of the ou
 
 `./vendor/bin/response2schema response.json openapi.yaml`
 
+Or when using the phar:
+
+`./response2schema.phar response.json openapi.yaml`
+
 # Example
 
 Given a very simple response:

bin/response2schema

@@ -9,7 +9,7 @@ foreach ([__DIR__ . '/../../../autoload.php', __DIR__ . '/../vendor/autoload.php
     }
 }
 
-function showHelp() {
+function showHelp(int $exit) {
     fwrite(STDOUT, <<<OUTPUT
 Usage: response2schema [inputfile] [outputfile]
 
@@ -27,12 +27,25 @@ Example:
 
 OUTPUT
     );
-    exit(0);
+    exit($exit);
+}
+
+function error(string $message) {
+    fwrite(STDERR, "\e[31m" . $message . "\e[0m" . PHP_EOL);
+    showHelp(1);
+}
+
+function success(string $message) {
+    fwrite(STDOUT, "\e[32m" . $message . "\e[0m" . PHP_EOL);
 }
 
 $inputPath = null;
 $outputPath = null;
 
+if (count($argv) < 3) {
+    error("Missing input and output file arguments!");
+}
+
 foreach($argv as $k => $arg) {
     if ($k === 0) {
         continue;
@@ -41,30 +54,32 @@ foreach($argv as $k => $arg) {
     // Input
     if ($k === 1) {
         if (!is_string($arg)) {
-            echo "Input file path invalid.";
-            exit(1);
+            error("Please specify an input file.");
         }
         if ($arg === 'help' || $arg === '--help') {
-            showHelp();
+            showHelp(0);
         }
         $inputPath = $arg;
     }
 
     // Output
     if ($k === 2) {
         if (!is_string($arg)) {
-            echo 'Output file path invalid.';
-            exit(1);
+            error("Please specify an output file.");
         }
         $outputPath = $arg;
     }
 }
 
+if ($inputPath === null || $outputPath === null) {
+    error("Missing input and output file arguments!");
+}
+
 try {
     \DSuurlant\Response2Schema\Response2Schema::generate($inputPath, $outputPath);
-    fwrite(STDOUT, "Generation successful." . PHP_EOL);
+    success("Generation successful!");
 } catch (DomainException $exception) {
-    fwrite(STDERR, $exception->getMessage() . PHP_EOL);
+    error($exception->getMessage());
 }
 
 exit(0);

composer.json

@@ -34,6 +34,6 @@
         "macfja/phar-builder": "^0.2.8"
     },
     "scripts": {
-        "buildphar": "vendor/bin/phar-builder package -e bin/response2schema -z --name response2schema.phar -o build"
+        "buildphar": "vendor/bin/phar-builder package -e bin/response2schema -z --name response2schema.phar -o build && chmod 755 build/response2schema.phar"
     }
 }