added Lcov

Author: marc-jan

composer.json

@@ -31,9 +31,10 @@
         "php": "^7.3",
         "ext-dom": "*",
         "ext-xmlwriter": "*",
+        "cedx/lcov.hx": "^1.0",
         "phpunit/php-file-iterator": "^3.0",
-        "phpunit/php-token-stream": "^4.0",
         "phpunit/php-text-template": "^2.0",
+        "phpunit/php-token-stream": "^4.0",
         "sebastian/code-unit-reverse-lookup": "^2.0",
         "sebastian/environment": "^5.0",
         "sebastian/version": "^3.0",

src/Report/Lcov.php

@@ -0,0 +1,65 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of phpunit/php-code-coverage.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\CodeCoverage\Report;
+
+use function dirname;
+use function file_put_contents;
+use lcov\{FunctionCoverage, LineCoverage, LineData, Record, Report};
+use SebastianBergmann\CodeCoverage\Directory;
+use SebastianBergmann\CodeCoverage\Driver\WriteOperationFailedException;
+use SebastianBergmann\CodeCoverage\Node\File;
+
+final class Lcov
+{
+    public function process(CodeCoverage $coverage, ?string $target = null, ?string $name = null): string
+    {
+        $report = $coverage->getReport();
+
+        $records = [];
+        foreach ($report as $item) {
+            if (!$item instanceof File) {
+                continue;
+            }
+
+            $coverageData = $item->lineCoverageData();
+
+            $linesData = [];
+
+            $record = new Record($item->pathAsString(), [
+                'functions' => new FunctionCoverage(1, 1),
+                'lines' => $lineCoverage
+            ]);
+        }
+
+        $report = new Report("Example", $records);
+
+        $lineCoverage = new LineCoverage(2, 2, [
+            new LineData(6, 2),
+            new LineData(7, 2)
+        ]);
+
+        $record = new Record("/home/cedx/lcov.hx/fixture.php", [
+            'functions' => new FunctionCoverage(1, 1),
+            'lines' => $lineCoverage
+        ]);
+
+        $report = new Report("Example", [$record]);
+
+        if ($target !== null) {
+            Directory::create(dirname($target));
+
+            if (@file_put_contents($target, $buffer) === false) {
+                throw new WriteOperationFailedException($target);
+            }
+        }
+
+        return $buffer;
+    }
+}