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ae8c95b | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 | <?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\StaticAnalysis;
use function file_get_contents;
use function file_put_contents;
use function implode;
use function is_file;
use function md5;
use function serialize;
use function unserialize;
use SebastianBergmann\CodeCoverage\Util\Filesystem;
use SebastianBergmann\FileIterator\Facade as FileIteratorFacade;
/**
* @internal This class is not covered by the backward compatibility promise for phpunit/php-code-coverage
*/
final class CachingFileAnalyser implements FileAnalyser
{
/**
* @var ?string
*/
private static $cacheVersion;
/**
* @var FileAnalyser
*/
private $analyser;
/**
* @var array
*/
private $cache = [];
/**
* @var string
*/
private $directory;
public function __construct(string $directory, FileAnalyser $analyser)
{
Filesystem::createDirectory($directory);
$this->analyser = $analyser;
$this->directory = $directory;
}
public function classesIn(string $filename): array
{
if (!isset($this->cache[$filename])) {
$this->process($filename);
}
return $this->cache[$filename]['classesIn'];
}
public function traitsIn(string $filename): array
{
if (!isset($this->cache[$filename])) {
$this->process($filename);
}
return $this->cache[$filename]['traitsIn'];
}
public function functionsIn(string $filename): array
{
if (!isset($this->cache[$filename])) {
$this->process($filename);
}
return $this->cache[$filename]['functionsIn'];
}
/**
* @psalm-return array{linesOfCode: int, commentLinesOfCode: int, nonCommentLinesOfCode: int}
*/
public function linesOfCodeFor(string $filename): array
{
if (!isset($this->cache[$filename])) {
$this->process($filename);
}
return $this->cache[$filename]['linesOfCodeFor'];
}
public function executableLinesIn(string $filename): array
{
if (!isset($this->cache[$filename])) {
$this->process($filename);
}
return $this->cache[$filename]['executableLinesIn'];
}
public function ignoredLinesFor(string $filename): array
{
if (!isset($this->cache[$filename])) {
$this->process($filename);
}
return $this->cache[$filename]['ignoredLinesFor'];
}
public function process(string $filename): void
{
$cache = $this->read($filename);
if ($cache !== false) {
$this->cache[$filename] = $cache;
return;
}
$this->cache[$filename] = [
'classesIn' => $this->analyser->classesIn($filename),
'traitsIn' => $this->analyser->traitsIn($filename),
'functionsIn' => $this->analyser->functionsIn($filename),
'linesOfCodeFor' => $this->analyser->linesOfCodeFor($filename),
'ignoredLinesFor' => $this->analyser->ignoredLinesFor($filename),
'executableLinesIn' => $this->analyser->executableLinesIn($filename),
];
$this->write($filename, $this->cache[$filename]);
}
/**
* @return mixed
*/
private function read(string $filename)
{
$cacheFile = $this->cacheFile($filename);
if (!is_file($cacheFile)) {
return false;
}
return unserialize(
file_get_contents($cacheFile),
['allowed_classes' => false]
);
}
/**
* @param mixed $data
*/
private function write(string $filename, $data): void
{
file_put_contents(
$this->cacheFile($filename),
serialize($data)
);
}
private function cacheFile(string $filename): string
{
return $this->directory . DIRECTORY_SEPARATOR . md5($filename . "\0" . file_get_contents($filename) . "\0" . self::cacheVersion());
}
private static function cacheVersion(): string
{
if (self::$cacheVersion !== null) {
return self::$cacheVersion;
}
$buffer = [];
foreach ((new FileIteratorFacade)->getFilesAsArray(__DIR__, '.php') as $file) {
$buffer[] = $file;
$buffer[] = file_get_contents($file);
}
self::$cacheVersion = md5(implode("\0", $buffer));
return self::$cacheVersion;
}
}
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