Add gtkwave.cmdline config key for setting Gtkwave invocation command

This should be useful for some Mac users where Gtkwave cannot be
invoked directly.

src/Command/SimulateCommand.php

@@ -127,7 +127,7 @@ protected function execute(InputInterface $input, OutputInterface $output): int
         $config = $this->buildConfig($input, $output, $executableFinder);
 
         $ghdlRunner = GhdlRunnerFactory::create($executableFinder, $config);
-        $gtkwaveRunner = GtkwaveRunnerFactory::create($executableFinder);
+        $gtkwaveRunner = GtkwaveRunnerFactory::create($executableFinder, $config);
 
         Pusheh::createDirRecursive($workdir);
 

src/Config.php

@@ -17,9 +17,11 @@ final class Config extends \Noodlehaus\Config
     private const FILE_NAME = "config.json";
 
     public const KEY_GHDL_VERSION = "ghdl.version";
+    public const KEY_GTKWAVE_CMDLINE = "gtkwave.cmdline";
 
     private const VALID_KEYS = [
         self::KEY_GHDL_VERSION,
+        self::KEY_GTKWAVE_CMDLINE,
     ];
 
     public string $filePath;

src/Runner/Gtkwave/GtkwaveRunner.php

@@ -2,32 +2,40 @@
 
 namespace MAChitgarha\Parvaj\Runner\Gtkwave;
 
+use MAChitgarha\Parvaj\Config;
 use MAChitgarha\Parvaj\Runner\OptionBuilder;
-
+use MAChitgarha\Parvaj\Util\ExecutableFinder;
 use MAChitgarha\Parvaj\WaveformType;
-
 use MAChitgarha\Parvaj\Util\Process;
 
 class GtkwaveRunner
 {
     public function __construct(
-        private string $executable,
+        private ExecutableFinder $executableFinder,
+        private Config $config,
     ) {
     }
 
     public function open(string $waveformFilePath, string $waveformType): void
     {
-        $options = [];
-        if ($waveformType === WaveformType::VCD) {
-            $options["o"] = null;
-        }
+        if ($this->config->has(Config::KEY_GTKWAVE_CMDLINE)) {
+            $command = [
+                $this->config->get(Config::KEY_GTKWAVE_CMDLINE),
+                $waveformFilePath,
+            ];
+        } else {
+            $options = [];
+            if ($waveformType === WaveformType::VCD) {
+                $options["o"] = null;
+            }
 
-        (new Process(
-            [
-                $this->executable,
+            $command = [
+                $this->executableFinder->find("gtkwave"),
                 ...OptionBuilder::build($options),
                 $waveformFilePath,
-            ]
-        ))->runSafe();
+            ];
+        }
+
+        (new Process($command))->runSafe();
     }
 }

src/Runner/Gtkwave/GtkwaveRunnerFactory.php

@@ -2,14 +2,14 @@
 
 namespace MAChitgarha\Parvaj\Runner\Gtkwave;
 
+use MAChitgarha\Parvaj\Config;
+
 use MAChitgarha\Parvaj\Util\ExecutableFinder;
 
 class GtkwaveRunnerFactory
 {
-    public static function create(ExecutableFinder $executableFinder): GtkwaveRunner
+    public static function create(ExecutableFinder $executableFinder, Config $config): GtkwaveRunner
     {
-        return new GtkwaveRunner(
-            $executableFinder->find("gtkwave")
-        );
+        return new GtkwaveRunner($executableFinder, $config);
     }
 }