diffBaseline()

Complexity

Conditions	15
Paths	160

Size

Total Lines	76
Code Lines	52

Duplication

Lines	0
Ratio	0 %

Importance

Changes	6
Bugs	0	Features	0

<?php // phpcs:ignore SR1.Files.SideEffects.FoundWithSymbols
function diffBaseline(string $baselineFilePath, string $targetFilePath): int
{
    $realBaselineFilePath = getRealFilePath($baselineFilePath);
    $realTargetFilePath = getRealFilePath($targetFilePath);

    // Collect violationIds from baseline file, put them into a map for faster lookup
    // If violationId is not found, the use single filename + line + error hash. This works for simple errors e.g. PSR-12
    $errorFileLine = '';
    $violationIdMap = [];
    $lineHashMap = [];
    $baselineFile = fopen($realBaselineFilePath, 'r');
    while (!feof($baselineFile)) {
        $line = fgets($baselineFile);
        if (false !== strpos($line, '<file')) {
            $errorFileLine = $line;
            continue;
        }

        if (false === strpos($line, '<error')) {
            continue;
        }

        if ($violationId = findViolationId($line)) {
            $violationIdMap[$violationId] = null;
        } else {
            $lineHash = getLineHash($errorFileLine, $line);
            $lineHashMap[$lineHash] = null;
        }
    }
    fclose($baselineFile);

    // Iterate over report file, keep errors only if they are not in the ignored error maps.
    // If a file segment contains new errors, then keep file segment with those new errors.
    // In the end, write collected file (with errors) segments to the same file.
    $remainingWarningCount = 0;
    $removedWarningCount = 0;
    $newFileLines = [];
    $errorFileLine = '';
    $errorLines = [];
    $realTargetFile = fopen($realTargetFilePath, 'r');
    while (!feof($realTargetFile)) {
        $line = fgets($realTargetFile);

        if (false !== strpos($line, '<file')) {
            $errorFileLine = $line;
        } elseif (false !== strpos($line, '</file')) {
            if (!empty($errorLines)) {
                array_push($newFileLines, $errorFileLine, ...$errorLines);
                array_push($newFileLines, $line);
            }
            $errorFileLine = '';
            $errorLines = [];
        } elseif (false !== strpos($line, '<error')) {
            $violationId = findViolationId($line);
            if (null !== $violationId && key_exists($violationId, $violationIdMap)) {
                $removedWarningCount++;
            } elseif (key_exists(getLineHash($errorFileLine, $line), $lineHashMap)) {
                $removedWarningCount++;
            } else {
                $remainingWarningCount++;
                $errorLines[] = $line;
            }
        } else {
            $newFileLines[] = $line;
        }
    }
    fclose($realTargetFile);

    echo sprintf('Found %s warning(s) in %s.%s', count($violationIdMap) + count($lineHashMap), $baselineFilePath, PHP_EOL);
    echo sprintf('Removed %s warning(s) from %s, %s warning(s) remain.%s', $removedWarningCount, $targetFilePath, $remainingWarningCount, PHP_EOL);

    if ($removedWarningCount > 0) {
        file_put_contents($realTargetFilePath, implode('', $newFileLines));
    }

    return $remainingWarningCount > 0 ? 1 : 0;
}