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<?php |
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declare(strict_types=1); |
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namespace BEAR\Resource\SemanticLog\Profile; |
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use JsonSerializable; |
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use Override; |
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use function extension_loaded; |
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use function file_exists; |
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use function file_get_contents; |
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use function function_exists; |
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use function getenv; |
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use function ini_get; |
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use function is_string; |
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use function restore_error_handler; |
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use function rtrim; |
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use function set_error_handler; |
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use function str_contains; |
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use function sys_get_temp_dir; |
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use function uniqid; |
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use function unlink; |
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use function xdebug_get_tracefile_name; |
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use function xdebug_start_trace; |
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use function xdebug_stop_trace; |
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use const E_NOTICE; |
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final class XdebugTrace implements JsonSerializable |
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{ |
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private ?string $traceId = null; |
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public function __construct( |
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public readonly ?string $content = null, |
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) { |
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} |
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public static function start(): self |
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{ |
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if (! extension_loaded('xdebug') || ! function_exists('xdebug_start_trace')) { |
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return new self(); // @codeCoverageIgnore |
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} |
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// Check if Xdebug trace functionality is properly configured |
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$envMode = getenv('XDEBUG_MODE'); |
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$iniMode = ini_get('xdebug.mode'); |
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$xdebugMode = $envMode !== false ? $envMode : ($iniMode !== false ? $iniMode : ''); |
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if (! str_contains($xdebugMode, 'trace')) { |
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return new self(); // @codeCoverageIgnore |
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} |
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// Always start our own trace to ensure we have control over the file format |
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// Stop any existing trace first to ensure we get a fresh start |
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if (function_exists('xdebug_stop_trace')) { |
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@xdebug_stop_trace(); // @codeCoverageIgnore - suppress errors if not running |
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} |
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$instance = new self(); |
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$instance->traceId = uniqid('profile_', true); |
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// Use full path for trace file to ensure consistency with xhprofFile |
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$outputDir = ini_get('xdebug.output_dir'); |
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if ($outputDir === false) { |
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$outputDir = sys_get_temp_dir(); // @codeCoverageIgnore |
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} |
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$traceFilePrefix = rtrim($outputDir, '/') . '/' . $instance->traceId; |
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xdebug_start_trace($traceFilePrefix); // @codeCoverageIgnore |
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// Note: Return value is void, trace may fail silently if already started elsewhere |
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return $instance; |
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} |
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public function stop(): self |
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{ |
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if (! $this->canStopTrace()) { |
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return new self(); // @codeCoverageIgnore |
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} |
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return $this->performStopTrace(); // @codeCoverageIgnore |
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} |
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private function canStopTrace(): bool |
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{ |
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if (! function_exists('xdebug_stop_trace')) { |
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return false; // @codeCoverageIgnore |
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} |
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// Check if Xdebug trace functionality is properly configured |
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$envMode = getenv('XDEBUG_MODE'); |
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$iniMode = ini_get('xdebug.mode'); |
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$xdebugMode = $envMode !== false ? $envMode : ($iniMode !== false ? $iniMode : ''); |
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if (! str_contains($xdebugMode, 'trace')) { |
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return false; // @codeCoverageIgnore |
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} |
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// Can stop if we started the trace ourselves, OR if there's an existing trace running |
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return $this->traceId !== null || function_exists('xdebug_get_tracefile_name'); |
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} |
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private function performStopTrace(): self |
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{ |
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// If we already have content (from existing trace), preserve it |
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if ($this->content !== null) { |
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return new self($this->content); // @codeCoverageIgnore |
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} |
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// Try to stop trace and get the trace file path |
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// Suppress "Function trace was not started" error for graceful handling |
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set_error_handler(static function (int $errno, string $errstr): bool { |
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// Ignore specific xdebug trace errors (only handle E_NOTICE) |
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return $errno === E_NOTICE && str_contains($errstr, 'Function trace was not started'); |
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}); |
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try { |
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// Get the trace file name BEFORE stopping the trace |
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$traceFile = function_exists('xdebug_get_tracefile_name') ? xdebug_get_tracefile_name() : false; // @codeCoverageIgnore |
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xdebug_stop_trace(); // @codeCoverageIgnore - returns void |
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} finally { |
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restore_error_handler(); |
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} |
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if ($traceFile === false || ! is_string($traceFile) || ! file_exists($traceFile)) { |
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return new self(); // @codeCoverageIgnore |
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} |
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// Read trace content and delete file for self-contained implementation |
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$content = file_get_contents($traceFile); |
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if ($content !== false) { |
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@unlink($traceFile); // Clean up trace file |
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} |
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return new self($content !== false ? $content : null); |
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} |
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/** @return array<string, mixed> */ |
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#[Override] |
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public function jsonSerialize(): array |
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{ |
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if ($this->content === null) { |
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return []; |
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} |
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return [ |
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'data' => $this->content, |
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'spec_url' => 'https://xdebug.org/docs/trace#Output-Formats', |
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]; |
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} |
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} |
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bearsunday /
BEAR.Resource
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If you suppress an error, we recommend checking for the error condition explicitly: