add opentelemetry extension support (#593)

* add opentelemetry extension support

* config sort

* cleanup build args

* Update docs

* Adjust custom extension overrides for opentelemetry

* Add tests

* Update README.md and remove windows limitation

* Fix windows static build for opentelemetry

---------

Co-authored-by: crazywhalecc <jesse2061@outlook.com>

src/SPC/builder/extension/opentelemetry.php

@@ -0,0 +1,41 @@
+<?php
+
+declare(strict_types=1);
+
+namespace SPC\builder\extension;
+
+use SPC\builder\Extension;
+use SPC\store\FileSystem;
+use SPC\util\CustomExt;
+use SPC\util\GlobalEnvManager;
+
+#[CustomExt('opentelemetry')]
+class opentelemetry extends Extension
+{
+    public function validate(): void
+    {
+        if ($this->builder->getPHPVersionID() < 80000 && getenv('SPC_SKIP_PHP_VERSION_CHECK') !== 'yes') {
+            throw new \RuntimeException('The opentelemetry extension requires PHP 8.0 or later');
+        }
+    }
+
+    public function patchBeforeBuildconf(): bool
+    {
+        if (PHP_OS_FAMILY === 'Windows') {
+            FileSystem::replaceFileStr(
+                SOURCE_PATH . '/php-src/ext/opentelemetry/config.w32',
+                "EXTENSION('opentelemetry', 'opentelemetry.c otel_observer.c', '/DZEND_ENABLE_STATIC_TSRMLS_CACHE=1');",
+                "EXTENSION('opentelemetry', 'opentelemetry.c otel_observer.c', PHP_OPENTELEMETRY_SHARED, '/DZEND_ENABLE_STATIC_TSRMLS_CACHE=1');"
+            );
+            return true;
+        }
+        return false;
+    }
+
+    public function patchBeforeMake(): bool
+    {
+        // add -Wno-strict-prototypes
+        GlobalEnvManager::putenv('SPC_CMD_VAR_PHP_MAKE_EXTRA_CFLAGS=' . getenv('SPC_CMD_VAR_PHP_MAKE_EXTRA_CFLAGS') . ' -Wno-strict-prototypes');
+        return true;
+    }
+}