renamefiles

#!/usr/bin/php
<?php

if (empty($argv[1])) {
	error_log( "Renames files based on a tab-delimited file of \"[oldname]\\t[newname]\". If you do not specify a directory, the source directory is the basedir of the text file chosen.\n"
		. "  Usage: renamefiles txtfile.txt [src_dir]" );
	die(1);
}

$source_filename = $argv[1];

if (!is_file($source_filename)) {
	error_log( "The passed file {$source_filename} does not exists." );
	die(1);
}

if (!empty($argv[2])) {
	$source_directory = $argv[2];
} else {
	$source_directory = dirname($source_filename);
}

$checkRealPath = realpath($source_directory);
if (empty($checkRealPath)) {
	if (!is_dir($source_directory)) {
		error_log( "Cannot open that source directory $source_directory." );
		die(1);
	}
} else {
	$source_directory = $checkRealPath;
}

$lines = @file($source_filename);

if (empty($lines)) {
	error_log( "Could not read $source_filename or the file was empty." );
	die(1);
}

error_log( "Processing ".count($lines)." files in '$source_directory'." );


foreach ($lines as $line) {

	list($oldname, $newname) = explode("\t", trim($line), 3);
	
	if (empty($oldname) || empty($newname)
		|| $oldname == '.' || $oldname == '..'
		|| $newname == '.' || $newname == '..') {
		continue;
	}
	
	$oldname = $source_directory.DIRECTORY_SEPARATOR.trim($oldname);
	$newname = $source_directory.DIRECTORY_SEPARATOR.trim($newname);
	
	if (is_file($oldname) || is_dir($oldname)) {
	
		if (@rename( $oldname, $newname )) {
			echo "$newname\n";
		} else {
			error_log( "Could not rename $oldname" );
		}
	} else {
		error_log( "Could not find $oldname" );
	}
}