read-error-log.php

read-error-log.php

#!/usr/bin/env php
<?php

$args = array_slice($_SERVER['argv'], 1);
if (!count($args)) {
	echo "Missing file argument\n";
	exit(1);
}

$project = null;
$file = array_shift($args);
if ($file[0] != '/') {
	$file = getcwd() . '/' . $file;
	if (file_exists(getcwd() . '/composer.json')) {
		$project = getcwd() . '/';
	}
}

$count = false;
$filters = $args;
if (in_array('--count', $filters)) {
	$filters = [];
	$count = true;
}

$fp = @fopen($file, 'r');
if (!$fp) {
	echo "File '$file' not found\n";
	exit(1);
}

$buffer = '';
$skips = 0;
$errors = [];
while (!feof($fp)) {
	$buffer .= fread($fp, 25000);

	if (preg_match('#\[(\d\d\d\d-\d\d-\d\d \d\d:\d\d:\d\d)\] #', getLastLine($buffer))) {
		$skips++;
	}
	else {
		preg_match_all('#\[(\d\d\d\d-\d\d-\d\d \d\d:\d\d:\d\d)\] ([^\n\r]+)#', $buffer, $matches, PREG_SET_ORDER);
		foreach ($matches as $match) {
			$error = trim($match[2]);
			if ($project) {
				$error = str_replace($project, '', $error);
			}
			$errors[] = [trim($match[1]), $error];
		}

		$buffer = '';
	}
}

if ($count) {
	$counts = [];
	foreach ($errors as [$datetime, $error]) {
		$error = preg_replace('# \{".+#', '', $error);
		isset($counts[$error]) or $counts[$error] = 0;
		$counts[$error]++;
	}
	asort($counts, SORT_NUMERIC);

	foreach ($counts as $error => $num) {
		echo sprintf("% 4d - %s\n", $num, $error);
	}

	echo "\n";
	echo count($counts) . " different errors\n";
	exit;
}

$COLUMNS = exec("tput cols");
$maxlength = $filters ? 999 : ($COLUMNS ? $COLUMNS - 19 - 2 - 1 : 150);
$filtered = 0;
foreach ($errors as list($datetime, $error)) {
	if (filterLine($filters, $error)) {
		$filtered++;
		echo $datetime . '  ' . substr($error, 0, $maxlength) . "\n";
		if ($filters) {
			echo "\n";
		}
	}
}

echo "\n";
echo "$filtered / " . count($errors) . " errors\n";
echo "$skips skips\n";



function filterLine(array $filters, string $line) : bool {
	foreach ($filters as $string) {
		if (strpos($line, $string) === false ) {
			return false;
		}
	}
	return true;
}

function getLastLine(string $buffer) : string {
	$lines = explode("\n", $buffer);
	return trim(end($lines));
}