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<html>
<head>
    <link rel="author" href="http://www.mageia.org/">
    <link rel="icon" type="image/png" href="../themes/mageia/favicon.png">
    <link rel="stylesheet" href="../themes/mageia/style.css">
<?php

function parse_package($rpm) {
	if (preg_match("/(.*)-([^-]*-[^-]*mga)[1-9].src.rpm/", $rpm, $matches)) {
	    return Array('package' => $matches[1], 'version' => $matches[2]);
	} else {
	    return false;
	}
}

$db = new SQLite3('autobuild.db');
$runs = Array();
$handle = opendir('cauldron/x86_64/core/');
while (false !== ($entry = readdir($handle))) {
	if (preg_match("/^....-..-..$/", $entry, $matches)) {
		array_push($runs, $matches[0]);
	}
}
closedir($handle);
$handle = opendir('cauldron/aarch64/core/');
while (false !== ($entry = readdir($handle))) {
	if (preg_match("/^....-..-..$/", $entry, $matches)) {
		array_push($runs, $matches[0]);
	}
}
closedir($handle);
sort($runs);

$latest = readlink("cauldron/aarch64/core/latest");
$run = $_GET['run'];
if (!$run) {
	$run = $latest;
}

foreach ($runs as $r) {
	if ($r==$run) {
		break;
	}
	$prev = $r;
}
$runepoc = strtotime($run);

$packages = Array();
if ($handle = opendir('/distrib/bootstrap/distrib/cauldron/SRPMS/core/release/')) {
	while (false !== ($entry = readdir($handle))) {
		if ($parsed = parse_package($entry)) {
			$packages[$parsed['package']] = $entry;
		}
	}
	closedir($handle);
}

$prev_failure = Array();
if ($prev) {
	$status_name = array_values(glob("cauldron/*/core/$prev/status.core.log"))[0];
	$status_file = fopen($status_name, "r");
	while (!feof($status_file)) {
		$line = fgets($status_file);
		if (preg_match("/^(.*): (.*)$/", $line, $matches)) {
			$rpm = parse_package($matches[1]);
			$status = $matches[2];
			if ($status != "ok" && $status != "unknown" && $status != "not_on_this_arch") {
				$prev_failure[$rpm['package']] = 1;
			}
		}
	}
	fclose($status_file);
}

$success = Array();
$failure = Array();
$fixed = Array();
$removed = Array();
$broken = Array();

$base_dir = array_values(glob("cauldron/*/core/$run"))[0];

$status_name = "$base_dir/status.core.log";
if (!file_exists($status_name)) {
	echo "Invalid run";
	exit;
}

$start_time = 0;
if (file_exists("$base_dir/VERSION")) {
#Mageia 5 Devel-i586-Download 20140311 15:50
#Mageia 5 Devel-x86_64-Download 20140311 15:50
	$version = file_get_contents("$base_dir/VERSION");
	preg_match('/ (\d{8} \d{2}:\d{2})$/', $version, $matches);
	$start_time = strtotime($matches[1]);
}
$status_file = fopen($status_name, "r");
while (!feof($status_file)) {
	$line = fgets($status_file);
	if (preg_match("/^(.*): (.*)$/", $line, $matches)) {
		$rpm = $matches[1];
		$status = $matches[2];
		if ($start_time == 0) {
			$build_stat = stat("$base_dir/$rpm");
			if ($build_stat['mtime']) {
				$start_time = $build_stat['mtime'];
			}
		}
		if ($status == "ok") {
			array_push($success, $rpm);
		} elseif ($status != "unknown" && $status != "not_on_this_arch"){
			$failure[$rpm] = $status;
			$parsed = parse_package($rpm);
			$package = $parsed['package'];
			if(!$prev_failure[$package]) {
				$broken[$rpm] = 1;
			}
			if(!$packages[$package]) {
				$removed[$rpm] = 1;
			} else {
				$build_stat = stat("$base_dir/$rpm");
				$pkg_stat = stat('/distrib/bootstrap/distrib/cauldron/SRPMS/core/release/'.$packages[$package]);
				# For recreate_srpm_failure, $rpm is the one that was in the repo
				# For other failures, mga release may be incorrect so use something less reliable
				if (($status == 'recreate_srpm_failure' && $rpm != $packages[$package])
				    || ($pkg_stat['mtime'] > $start_time)) {
					$fixed[$rpm] = 1;
				}
			}
		}
	}
}
fclose($status_file);

sort($success);
ksort($failure);

$nb_failed = count($failure);
$nb_success = count($success);
$nb_fixed = count($fixed);
$nb_removed = count($removed);
$nb_tried = $nb_failed + $nb_success;
$succes_percent = round($nb_success*1000/$nb_tried)/10;
$estimated_percent = round(($nb_success+$nb_fixed)*1000/($nb_tried-$nb_removed))/10;

echo "<title>$succes_percent% Success</title>\n";
?>
<style>
table.failureTable {
  background-color: #f7f7f7;
}
table.failureTable tr:nth-child(even) {
  background: rgba(50,160,200, 0.1);
}
table.failureTable thead th {
  font-weight: bold;
}
</style>
<meta charset="utf-8">
</head>
<body>
<?php

# See if the pattern of recent build failures indicate a flaky build
# This looks at the last 10 builds for at least 4 result change
function is_flaky($history) {
	  if (count($history) < 10)
		return false;

	  # Most recent 5 builds
	  $num_change = 0;
	  $current = $history[0];
	  for ($i = 1; $i < 10; $i++) {
		  if ($history[$i] != $current) {
			  $num_change++;
			  $current = $history[$i];
		  }
	  }

	  return $num_change >= 4;
}

function get_package_id($package) {
	global $db;
	return $db->querySingle("SELECT Id FROM Packages WHERE Name = '$package'");
}

function get_build_history($package_id) {
	global $db;
	if ($package_id)  {
		# TODO: optimize by retrieving Runs.Id once at the start
		$result = $db->query("SELECT ResultValues.Name FROM Runs, Results, ResultValues WHERE Runs.Id = Results.Run AND Results.Result = ResultValues.Id AND Results.Package = '$package_id' ORDER BY Start DESC LIMIT 10");
		if ($result) {
			$build_stats = Array();
			while ($entry = $result->fetchArray(SQLITE3_ASSOC)) {
			    array_push($build_stats, $entry['Name']);
			}
			return $build_stats;
		}
	}
	return false;
}

function get_package_attributes($package_id) {
	global $db, $runepoc;
	if ($package_id)  {
	                    # TODO: optimize by retrieving Runs.Id once at the start
	                    $attributes = $db->querySingle("SELECT Attr FROM Attributes, Runs WHERE Runs.Id = Attributes.Run AND Runs.Start = $runepoc AND Attributes.Package = '$package_id';");
	}
	return $attributes;
}

echo "<form><select name='run' onChange='document.location.href=\"".$_SERVER["PHP_SELF"]."?run=\"+this.form.run.value'>";
foreach ($runs as $r) {
	$in_progress = ($r > $latest) ? ' (in progress)' : '';
	$selected = ($r == $run) ? ' selected' : '';
	echo "<option value='$r'$selected>$r$in_progress</option>";
}
echo "</select></form>";
if ($_GET['include_success'] === 'true') {
	echo "<a href=\"" . $_SERVER["PHP_SELF"] . "?run=" . $_GET['run'] . "\">Only failures</a>";
} else {
	echo "<a href=\"" . $_SERVER["PHP_SELF"] . "?run=" . $_GET['run'] . "&amp;include_success=true\">Include successful packages</a>";
}
echo "</div>\n";
echo "<header id=\"mgnavt\"><h1>$succes_percent% Success</h1></header>\n";
echo "$nb_fixed packages have been fixed since this run and $nb_removed have been removed.<br/> If no new package was broken, success rate next time should be $estimated_percent%.<br/>\n";
echo "<h1>Failed builds ($nb_failed/$nb_tried)</h1>\n";
echo "<table class=\"failureTable\" >\n";
echo "<tr><th></th><th>Status</th><th>Failure type</th><th>Build step</th><th></th><th>Languages</th><th>Detected errors</th></tr>\n";
foreach ($failure as $rpm => $error) {
	$parsed = parse_package($rpm);
	$history_link = '<a href="history.php?package='.$parsed['package'].'">History</a>';
	$status_html = "";
	if ($fixed[$rpm]) {
		$status_html = " <img src='icons/state-fixed.png' title='Fixed!' /> Fixed";
	} elseif ($removed[$rpm]) {
		$status_html = " <img src='icons/state-removed.png' title='Removed' /> Removed";
	} elseif ($broken[$rpm]) {
		$status_html = " <img src='icons/state-new.png' title='New!' /> New";
	}
	$error_html = $error;
	if (file_exists("icons/error-$error.png")) {
		$error_html = "<img src='icons/error-$error.png' title='$error'/> $error";
	}
	$packageid = get_package_id($parsed['package']);
	$history = get_build_history($packageid);
	if (is_flaky($history)) {
		$history_link = $history_link . " <img src='icons/warning-flaky.png' title='Flaky build' />";
	}
	$langs = "";
	$errors = "";
	$stage = "";
	$attributes = get_package_attributes($packageid);
	if ($attributes) {
		# Attributes are space separated words of the form "TYPE_SPECIFIER", e.g., "lang_php"
		# Types are currently build (use of a particular build system),
		# lang (use of a programming language) or err (a common build error).
		foreach (explode(" ", $attributes) as $attr) {
			if (empty($attr)) {
				continue;
			}
			$attrname = explode("_", $attr)[1];
			if (substr($attr, 0, 5) === "lang_") {
				$lang = ucfirst($attrname);
				$icon_fn = "icons/" . str_replace("_", "-", $attr) . ".png";
				if (file_exists($icon_fn)) {
					$langs = $langs . " <img src='$icon_fn' title='Uses $lang' />";
				} else {
					$langs = $langs . " $lang";
				}
			} elseif (substr($attr, 0, 4) === "err_") {
				# TODO: create link into wiki with information about these errors
				$errors = "$errors $attrname";
			} elseif (substr($attr, 0, 6) === "stage_") {
				if ($attrname != 'nobuild') {
					if ($attrname == 'preprep') {
						$stage = 'Before %prep';
					} else {
						$stage = "%$attrname";
					}
				}
			}
		}
	}
	echo "<tr>";
	if (file_exists("$base_dir/$rpm/")) {
		echo "<td><a href='$base_dir/$rpm/'>$rpm</a></td>";
	} else {
		echo "<td>$rpm</td>";
	}
	echo "<td>$status_html</td><td>$error_html</td><td>$stage</td><td>$history_link</td><td>$langs</td><td>$errors</td></tr>\n";
}
$db->close();
?>
</table>
<?php
if ($_GET['include_success'] === 'true') {
	echo "<h1>Successful builds ($nb_success/$nb_tried)</h1>\n<ul>\n";
	foreach ($success as $rpm) {
		$parsed = parse_package($rpm);
		$history_link = '<a href="history.php?package='.$parsed['package'].'">[h]</a>';
		if (file_exists("$base_dir/$rpm/")) {
			echo "<li><a href='$base_dir/$rpm/'>$rpm</a> $history_link</li>\n";
		} else {
			echo "<li>$rpm $history_link</li>\n";
		}
	}
	echo "</ul>\n";
}
?>
</body>
</html>