Add NProcessor based finders (#67)

Closes #58

src/Finder/FinderRegistry.php

@@ -28,6 +28,8 @@ public static function getAllVariants(): array
             new DummyCpuCoreFinder(1),
             new HwLogicalFinder(),
             new HwPhysicalFinder(),
+            new LinuxyNProcessorFinder(),
+            new NProcessorFinder(),
             new NProcFinder(true),
             new NProcFinder(false),
             new NullCpuCoreFinder(),

src/Finder/LinuxyNProcessorFinder.php

@@ -0,0 +1,27 @@
+<?php
+
+/*
+ * This file is part of the Fidry CPUCounter Config package.
+ *
+ * (c) Théo FIDRY <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+declare(strict_types=1);
+
+namespace Fidry\CpuCoreCounter\Finder;
+
+/**
+ * Find the number of logical CPU cores for Linux and the likes.
+ *
+ * @see https://twitter.com/freebsdfrau/status/1052016199452700678?s=20&t=M2pHkRqmmna-UF68lfL2hw
+ */
+final class LinuxyNProcessorFinder extends PopenBasedFinder
+{
+    protected function getCommand(): string
+    {
+        return 'getconf _NPROCESSORS_ONLN';
+    }
+}

src/Finder/NProcessorFinder.php

@@ -0,0 +1,27 @@
+<?php
+
+/*
+ * This file is part of the Fidry CPUCounter Config package.
+ *
+ * (c) Théo FIDRY <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+declare(strict_types=1);
+
+namespace Fidry\CpuCoreCounter\Finder;
+
+/**
+ * Find the number of logical CPU cores for FreeSBD, Solaris and the likes.
+ *
+ * @see https://twitter.com/freebsdfrau/status/1052016199452700678?s=20&t=M2pHkRqmmna-UF68lfL2hw
+ */
+final class NProcessorFinder extends PopenBasedFinder
+{
+    protected function getCommand(): string
+    {
+        return 'getconf NPROCESSORS_ONLN';
+    }
+}

tests/Finder/LinuxyNProcessorFinderTest.php

@@ -0,0 +1,35 @@
+<?php
+
+/*
+ * This file is part of the Fidry CPUCounter Config package.
+ *
+ * (c) Théo FIDRY <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+declare(strict_types=1);
+
+namespace Fidry\CpuCoreCounter\Test\Finder;
+
+use Fidry\CpuCoreCounter\Finder\LinuxyNProcessorFinder;
+use Fidry\CpuCoreCounter\Finder\PopenBasedFinder;
+
+/**
+ * @covers \Fidry\CpuCoreCounter\Finder\LinuxyNProcessorFinder
+ *
+ * @internal
+ */
+final class LinuxyNProcessorFinderTest extends PopenBasedFinderTestCase
+{
+    public function test_it_can_describe_itself(): void
+    {
+        self::assertSame('LinuxyNProcessorFinder', $this->getFinder()->toString());
+    }
+
+    protected function getFinder(): PopenBasedFinder
+    {
+        return new LinuxyNProcessorFinder();
+    }
+}

tests/Finder/NProcessorFinderTest.php

@@ -0,0 +1,35 @@
+<?php
+
+/*
+ * This file is part of the Fidry CPUCounter Config package.
+ *
+ * (c) Théo FIDRY <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+declare(strict_types=1);
+
+namespace Fidry\CpuCoreCounter\Test\Finder;
+
+use Fidry\CpuCoreCounter\Finder\NProcessorFinder;
+use Fidry\CpuCoreCounter\Finder\PopenBasedFinder;
+
+/**
+ * @covers \Fidry\CpuCoreCounter\Finder\NProcessorFinder
+ *
+ * @internal
+ */
+final class NProcessorFinderTest extends PopenBasedFinderTestCase
+{
+    public function test_it_can_describe_itself(): void
+    {
+        self::assertSame('NProcessorFinder', $this->getFinder()->toString());
+    }
+
+    protected function getFinder(): PopenBasedFinder
+    {
+        return new NProcessorFinder();
+    }
+}