Generate missing Nginx mime types using /usr/share/mime/globs

Nginx comes with a rather small set of mime types compared to a default Linux system

Linux uses a glob pattern to match a filename while Nginx matches only extension, but we can still use every glob in the format of *.ext

So here is a small PHP script converting/sorting/filtering/formatting everything in a nice output.

	!/usr/bin/env php
	<?php
	/**
	* Parses mime-type globs, as listed in /usr/share/mime/globs
	* Only parses group/id:*.extension
	* Usage: cat /usr/share/mime/globs | convert-mime-globs-to-nginx.php > /etc/nginx/mime.types
	*/
	$stdin = fopen('php://stdin', 'r');
	if (!$stdin) {
	file_put_contents('Cannot open stdin', 'php://stderr');
	exit(1);
	}
	$mimes = array();
	$extensions = array();
	$mime_part = '[a-z0-9_\-\.\+]+';
	while ($line = trim(fgets($stdin))) {
	if (preg_match($m = "!^($mime_part)/($mime_part)\s*:\*\.($mime_part)$!i", $line, $matches)) {
	// Make sure we have only one id per extension, case insensitive
	$ext = strtolower($matches[3]);
	if (isset($extensions[$ext])) {
	file_put_contents("$ext cannot be registered as ${matches[1]}/${matches[2]}, it is already registered as ${extensions[$ext]}\n", 'php://stderr');
	} else {
	$mimes[$matches[1]][$matches[2]][] = $ext;
	$extensions[$ext] = "${matches[1]}/${matches[2]}";
	}
	}
	}
	fclose($stdin);
	// Sort by mime group
	ksort($mimes);
	// Pad all mime-types to be this long
	$pad = 40;
	echo "types {";
	foreach ($mimes as $group => $ids) {
	echo "\n";
	// Sort by extension
	asort($ids);
	foreach ($ids as $id => $types) {
	echo ' ' . str_pad("$group/$id", $pad) . implode(' ', $types) . ";\n";
	}
	}
	echo "}\n";

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