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	CDanis
	Aug 1 2019, 9:29 PM

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raw.txt
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	#!/usr/bin/php
	<?php
	// This script takes dbctl-JSON-formatted configuration, as produced by e.g.
	// dbctl -s eqiad config get
	// and transforms it into PHP suitable for pasting into db-eqiad.php in an
	// emergency.
	// It can also read the JSON 'restore' files output by dbctl config commit,
	// with some help from jq:
	// jq '.eqiad' /var/cache/conftool/dbconfig/FOO.json

	$argc == 2 or die("usage: $argv[0] INPUT-JSON-FILE\n");
	$inputfilename = $argv[1] or die;

	$data = json_decode(file_get_contents($inputfilename), TRUE);
	$data != NULL or die;

	$readOnlyBySection = $data['readOnlyBySection'];
	$groupLoadsBySection = $data['groupLoadsBySection'];

	$sectionLoads = [];

	foreach ($data['sectionLoads'] as $section => $loads) {
	$sectionLoads[$section] = array_merge($loads[0], $loads[1]);
	}

	print '$wgLBFactoryConf[\'sectionLoads\'] = ';
	var_export($sectionLoads);
	print ";\n";

	print '$wgLBFactoryConf[\'readOnlyBySection\'] = ';
	var_export($readOnlyBySection);
	print ";\n";

	print '$wgLBFactoryConf[\'groupLoadsBySection\'] = ';
	var_export($groupLoadsBySection);
	print ";\n";