<?php

if ( !defined( 'MEDIAWIKI' ) ) {
	$wgNoDBParam = true;
	$optionsWithArgs = array( 'o' );
	require_once( __DIR__ .'/../maintenance/commandLine.inc' );

	$stderr = fopen( 'php://stderr', 'w' );
	if ( !isset( $args[0] ) ) {
		fwrite( $stderr, "No input file specified\n" );
		exit( 1 );
	}
	if ( wfIsWindows() ) {
		$files = array();
		foreach ( $args as $arg ) {
			$files = array_merge( $files, glob( $arg ) );
		}
		if ( !$files ) {
			fwrite( $stderr, "No files found\n" );
		}
	} else {
		$files = $args;
	}

	if ( isset( $options['o'] ) ) {
		$out = fopen( $options['o'], 'wb' );
		if ( !$out ) {
			fwrite( $stderr, "Unable to open file \"{$options['o']}\" for output\n" );
			exit( 1 );
		}
	} else {
		$out = fopen( 'php://stdout', 'wb' );
	}

	$vars = array();
	foreach ( $files as $inputFile ) {
		$vars = array_merge( $vars, getVars( $inputFile ) );
	}
	fwrite( $out, serialize( $vars ) );
	fclose( $out );
	exit( 0 );
}

//----------------------------------------------------------------------------

function getVars( $_gv_filename ) {
	require( $_gv_filename );
	$vars = get_defined_vars();
	unset( $vars['_gv_filename'] );

	# Clean up line endings
	if ( wfIsWindows() ) {
		$vars = unixLineEndings( $vars );
	}
	return $vars;
}

function unixLineEndings( $var ) {
	static $recursionLevel = 0;
	if ( $recursionLevel > 50 ) {
		global $stderr;
		fwrite( $stderr, "Error: Recursion limit exceeded. Possible circular reference in array variable.\n" );
		exit( 2 );
	}
	
	if ( is_array( $var ) ) {
		++$recursionLevel;
		$var = array_map( 'unixLineEndings', $var );
		--$recursionLevel;
	} elseif ( is_string( $var ) ) {
		$var = str_replace( "\r\n", "\n", $var );
	}
	return $var;
}