Moved shared code for plugins in traits

Author: luzrain

src/Plugin/NullStop.php

@@ -0,0 +1,16 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Luzrain\PHPStreamServer\Plugin;
+
+use Amp\Future;
+use function Amp\async;
+
+trait NullStop
+{
+    public function stop(): Future
+    {
+        return async(static fn() => null);
+    }
+}

src/Plugin/PcntlExecCommand.php

@@ -0,0 +1,38 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Luzrain\PHPStreamServer\Plugin;
+
+use Luzrain\PHPStreamServer\Server;
+
+trait PcntlExecCommand
+{
+    /**
+     * Prepare command for pcntl_exec acceptable format
+     *
+     * @return array{0: string, 1: list<string>}
+     */
+    private function prepareCommandForPcntlExec(string $command): array
+    {
+        // Check if command contains logic operators such as && and ||
+        if (\preg_match('/(\'[^\']*\'|"[^"]*")(*SKIP)(*FAIL)|&&|\|\|/', $command) === 1) {
+            throw new \RuntimeException(\sprintf(
+                '%s does not directly support executing multiple commands with logical operators. Use shell with -c option e.g. "/bin/sh -c "%s"',
+                Server::NAME,
+                $command,
+            ));
+        }
+
+        \preg_match_all('/\'[^\']*\'|"[^"]*"|\S+/', $command, $matches);
+        $parts = \array_map(static fn (string $part): string => \trim($part, '"\''), $matches[0]);
+        $binary = \array_shift($parts);
+        $args = $parts;
+
+        if (!\str_starts_with($binary, '/') && \is_string($absoluteBinaryPath = \shell_exec("command -v $binary"))) {
+            $binary = \trim($absoluteBinaryPath);
+        }
+
+        return [$binary, $args];
+    }
+}

src/Plugin/Scheduler/Scheduler.php

@@ -4,15 +4,17 @@
 
 namespace Luzrain\PHPStreamServer\Plugin\Scheduler;
 
-use Amp\Future;
 use Luzrain\PHPStreamServer\Internal\MasterProcess;
 use Luzrain\PHPStreamServer\PeriodicProcess;
+use Luzrain\PHPStreamServer\Plugin\PcntlExecCommand;
+use Luzrain\PHPStreamServer\Plugin\NullStop;
 use Luzrain\PHPStreamServer\Plugin\PluginInterface;
-use Luzrain\PHPStreamServer\Server;
-use function Amp\async;
 
 final readonly class Scheduler implements PluginInterface
 {
+    use NullStop;
+    use PcntlExecCommand;
+
     /**
      * @param string|\Closure(PeriodicProcess): void $command bash command as string or php closure
      */
@@ -34,56 +36,21 @@ public function start(MasterProcess $masterProcess): void
             default => $this->name,
         };
 
-        if (\is_string($this->command) && $this->isCommandContainsLogicOperators($this->command)) {
-            throw new \RuntimeException(\sprintf(
-                '%s does not directly support executing multiple commands with logical operators. Use shell with -c option e.g. "/bin/sh -c "%s"',
-                Server::NAME,
-                $this->command
-            ));
-        }
+        $pcntlExec = \is_string($this->command) ? $this->prepareCommandForPcntlExec($this->command) : null;
 
         $masterProcess->addWorker(new PeriodicProcess(
             name: $name,
             schedule: $this->schedule,
             jitter: $this->jitter,
             user: $this->user,
             group: $this->group,
-            onStart: function (PeriodicProcess $worker) {
-                if (\is_string($this->command)) {
-                    $worker->exec(...$this->prepareCommand($this->command));
+            onStart: function (PeriodicProcess $worker) use ($pcntlExec) {
+                if ($pcntlExec !== null) {
+                    $worker->exec(...$pcntlExec);
                 } else {
                     ($this->command)($worker);
                 }
             },
         ));
     }
-
-    /**
-     * @return array{0: string, 1: list<string>}
-     */
-    private function prepareCommand(string $command): array
-    {
-        \preg_match_all('/\'[^\']*\'|"[^"]*"|\S+/', $command, $matches);
-        $parts = \array_map(static fn (string $part) => \trim($part, '"\''), $matches[0]);
-        $binary = \array_shift($parts);
-        $args = $parts;
-
-        if (!\str_starts_with($binary, '/')) {
-            if (\is_string($absoluteBinaryPath = \shell_exec("command -v $binary"))) {
-                $binary = \trim($absoluteBinaryPath);
-            }
-        }
-
-        return [$binary, $args];
-    }
-
-    private function isCommandContainsLogicOperators(string $command): bool
-    {
-        return \preg_match('/(\'[^\']*\'|"[^"]*")(*SKIP)(*FAIL)|&&|\|\|/', $command) === 1;
-    }
-
-    public function stop(): Future
-    {
-        return async(static fn() => null);
-    }
 }

src/Plugin/Supervisor/Supervisor.php

@@ -4,14 +4,17 @@
 
 namespace Luzrain\PHPStreamServer\Plugin\Supervisor;
 
-use Amp\Future;
 use Luzrain\PHPStreamServer\Internal\MasterProcess;
+use Luzrain\PHPStreamServer\Plugin\PcntlExecCommand;
+use Luzrain\PHPStreamServer\Plugin\NullStop;
 use Luzrain\PHPStreamServer\Plugin\PluginInterface;
 use Luzrain\PHPStreamServer\WorkerProcess;
-use function Amp\async;
 
 final readonly class Supervisor implements PluginInterface
 {
+    use NullStop;
+    use PcntlExecCommand;
+
     /**
      * @param string|\Closure(WorkerProcess): void $command bash command as string or php closure
      */
@@ -34,44 +37,22 @@ public function start(MasterProcess $masterProcess): void
             default => $this->name,
         };
 
+        $pcntlExec = \is_string($this->command) ? $this->prepareCommandForPcntlExec($this->command) : null;
+
         $masterProcess->addWorker(new WorkerProcess(
             name: $name,
             count: $this->count,
             reloadable: $this->reloadable,
             restartDelay: $this->restartDelay,
             user: $this->user,
             group: $this->group,
-            onStart: function (WorkerProcess $worker) {
-                if (\is_string($this->command)) {
-                    $worker->exec(...$this->prepareCommand($this->command));
+            onStart: function (WorkerProcess $worker) use ($pcntlExec) {
+                if ($pcntlExec !== null) {
+                    $worker->exec(...$pcntlExec);
                 } else {
                     ($this->command)($worker);
                 }
             },
         ));
     }
-
-    /**
-     * @return array{0: string, 1: list<string>}
-     */
-    private function prepareCommand(string $command): array
-    {
-        \preg_match_all('/\'[^\']*\'|"[^"]*"|\S+/', $command, $matches);
-        $parts = \array_map(static fn (string $part) => \trim($part, '"\''), $matches[0]);
-        $binary = \array_shift($parts);
-        $args = $parts;
-
-        if (!\str_starts_with($binary, '/')) {
-            if (\is_string($absoluteBinaryPath = \shell_exec("command -v $binary"))) {
-                $binary = \trim($absoluteBinaryPath);
-            }
-        }
-
-        return [$binary, $args];
-    }
-
-    public function stop(): Future
-    {
-        return async(static fn() => null);
-    }
 }