ExecDriver::getFileSize() - Code Metrics - Inspection of "Merge pull request #20 from jkuchar/fix-19-empty-f..." - jkuchar/BigFileTools - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 25e62d...cea157 )

by Jan

created 2016-03-17 16:18 UTC

ExecDriver::getFileSize() A

↳ Parent: ExecDriver

Complexity

Conditions	4
Paths	4

Size

Total Lines	9
Code Lines	6

Duplication

Lines	0
Ratio	0 %

Importance

Changes	3
Bugs	1	Features	0

Metric	Value
dl	0
loc	9
c	3
b	1
f	0
rs	9.2
cc	4
eloc	6
nc	4
nop	1

<?php

namespace BigFileTools\Driver;
use Brick\Math\BigInteger;
use Brick\Math\Exception\ArithmeticException;

class ExecDriver implements ISizeDriver
{
	private $os;
	const OS_WINDOWS = "Windows";
	const OS_LINUX = "Linux";
	const OS_MAC = "Mac";

	public function __construct()
	{
		if (!function_exists("exec")) {
			throw new PrerequisiteException("Exec function is disabled");
		}

		if(strtoupper(substr(PHP_OS, 0, 3)) == 'WIN') {
			$this->os = self::OS_WINDOWS;
		} elseif (strtoupper(PHP_OS) == "DARWIN") {
			$this->os = self::OS_MAC;
		} else {
			$this->os = self::OS_LINUX;
		}
	}

	/**
	 * Returns file size by using system shell/cmd commands
	 * @inheritdoc
	 * @link http://stackoverflow.com/questions/5501451/php-x86-how-to-get-filesize-of-2gb-file-without-external-program/5502328#5502328
	 * @return BigInteger
	 */
	public function getFileSize($path)
	{
		switch($this->os) {
			case self::OS_WINDOWS: return $this->getFileSizeWindows($path); break;
switch ($x) {
    case 1:
        return 'foo';
        break; // This break is not necessary and can be left off.
}
			case self::OS_LINUX:   return $this->getFileSizeLinux($path); break;
switch ($x) {
    case 1:
        return 'foo';
        break; // This break is not necessary and can be left off.
}
			case self::OS_MAC:     return $this->getFileSizeMac($path); break;
switch ($x) {
    case 1:
        return 'foo';
        break; // This break is not necessary and can be left off.
}
			default: throw new Exception("OS not detected");
switch ($expr) {
    default:
        doSomething(); //right
        break;
}


switch ($expr) {
    default:

        doSomething(); //wrong
        break;
}
		}
	}

	/**
	 * Convert string into integer
	 * Must be precise number, otherwise you will see and exception.
	 *
	 * @param $valueAsString
	 * @return BigInteger
	 * @throws Exception
	 */
	private function convertToInteger($valueAsString) {
		if(!is_string($valueAsString)) {
			throw new Exception("Cannot convert to integer. Expected string, but got " . gettype($valueAsString). ".");
		}
		$trimmedInput = trim($valueAsString);

		try {
			return BigInteger::of($trimmedInput);

		} catch (ArithmeticException $e) {
			throw new Exception("Returned value cannot be converted to an integer.",0, $e);
		}

	}

	private function getFileSizeWindows($path)
	{
		$escapedPath = escapeshellarg($path);
		return $this->convertToInteger(
			exec("for %F in ($escapedPath) do @echo %~zF")
		);
	}

	private function getFileSizeLinux($path)
	{
		$escapedPath = escapeshellarg($path);
		return $this->convertToInteger(
			exec("stat -Lc%s $escapedPath")
		);
	}

	private function getFileSizeMac($path)
	{
		$escapedPath = escapeshellarg($path);
		return $this->convertToInteger(
			exec("stat -f%z $escapedPath")
		);
	}
}

1			<?php
2
3			namespace BigFileTools\Driver;
4			use Brick\Math\BigInteger;
5			use Brick\Math\Exception\ArithmeticException;
6
7			class ExecDriver implements ISizeDriver
8			{
9			private $os;
10			const OS_WINDOWS = "Windows";
11			const OS_LINUX = "Linux";
12			const OS_MAC = "Mac";
13
14			public function __construct()
15			{
16			if (!function_exists("exec")) {
17			throw new PrerequisiteException("Exec function is disabled");
18			}
19
20			if(strtoupper(substr(PHP_OS, 0, 3)) == 'WIN') {
21			$this->os = self::OS_WINDOWS;
22			} elseif (strtoupper(PHP_OS) == "DARWIN") {
23			$this->os = self::OS_MAC;
24			} else {
25			$this->os = self::OS_LINUX;
26			}
27			}
28
29			/**
30			* Returns file size by using system shell/cmd commands
31			* @inheritdoc
32			* @link http://stackoverflow.com/questions/5501451/php-x86-how-to-get-filesize-of-2gb-file-without-external-program/5502328#5502328
33			* @return BigInteger
34			*/
35			public function getFileSize($path)
36			{
37			switch($this->os) {
38			case self::OS_WINDOWS: return $this->getFileSizeWindows($path); break;
			0 ignored issues – show Unused Code introduced 2016-02-05 18:32 UTC by Report Bug Copy Issue Report `break` is not strictly necessary here and could be removed. The `break` statement is not necessary if it is preceded for example by a `return` statement: switch ($x) { case 1: return 'foo'; break; // This break is not necessary and can be left off. } If you would like to keep this construct to be consistent with other `case` statements, you can safely mark this issue as a false-positive. Loading history... Coding Style introduced 2016-03-16 14:26 UTC by Report Bug Copy Issue Report The case body in a switch statement must start on the line following the statement. According to the PSR-2, the body of a case statement must start on the line immediately following the case statement. switch ($expr) { case "A": doSomething(); //right break; case "B": doSomethingElse(); //wrong break; } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history... Coding Style introduced 2016-03-16 14:26 UTC by Report Bug Copy Issue Report Terminating statement must be on a line by itself As per the PSR-2 coding standard, the `break` (or other terminating) statement must be on a line of its own. switch ($expr) { case "A": doSomething(); break; //wrong case "B": doSomething(); break; //right case "C:": doSomething(); return true; //right } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history...
39			case self::OS_LINUX: return $this->getFileSizeLinux($path); break;
			0 ignored issues – show Unused Code introduced 2016-02-05 18:32 UTC by Report Bug Copy Issue Report `break` is not strictly necessary here and could be removed. The `break` statement is not necessary if it is preceded for example by a `return` statement: switch ($x) { case 1: return 'foo'; break; // This break is not necessary and can be left off. } If you would like to keep this construct to be consistent with other `case` statements, you can safely mark this issue as a false-positive. Loading history... Coding Style introduced 2016-03-16 14:26 UTC by Report Bug Copy Issue Report The case body in a switch statement must start on the line following the statement. According to the PSR-2, the body of a case statement must start on the line immediately following the case statement. switch ($expr) { case "A": doSomething(); //right break; case "B": doSomethingElse(); //wrong break; } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history... Coding Style introduced 2016-03-16 14:26 UTC by Report Bug Copy Issue Report Terminating statement must be on a line by itself As per the PSR-2 coding standard, the `break` (or other terminating) statement must be on a line of its own. switch ($expr) { case "A": doSomething(); break; //wrong case "B": doSomething(); break; //right case "C:": doSomething(); return true; //right } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history...
40			case self::OS_MAC: return $this->getFileSizeMac($path); break;
			0 ignored issues – show Unused Code introduced 2016-02-05 18:32 UTC by Report Bug Copy Issue Report `break` is not strictly necessary here and could be removed. The `break` statement is not necessary if it is preceded for example by a `return` statement: switch ($x) { case 1: return 'foo'; break; // This break is not necessary and can be left off. } If you would like to keep this construct to be consistent with other `case` statements, you can safely mark this issue as a false-positive. Loading history... Coding Style introduced 2016-03-16 14:26 UTC by Report Bug Copy Issue Report The case body in a switch statement must start on the line following the statement. According to the PSR-2, the body of a case statement must start on the line immediately following the case statement. switch ($expr) { case "A": doSomething(); //right break; case "B": doSomethingElse(); //wrong break; } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history... Coding Style introduced 2016-03-16 14:26 UTC by Report Bug Copy Issue Report Terminating statement must be on a line by itself As per the PSR-2 coding standard, the `break` (or other terminating) statement must be on a line of its own. switch ($expr) { case "A": doSomething(); break; //wrong case "B": doSomething(); break; //right case "C:": doSomething(); return true; //right } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history...
41			default: throw new Exception("OS not detected");
			0 ignored issues – show Coding Style introduced 2016-03-16 14:26 UTC by Report Bug Copy Issue Report The default body in a switch statement must start on the line following the statement. According to the PSR-2, the body of a default statement must start on the line immediately following the statement. switch ($expr) { default: doSomething(); //right break; } switch ($expr) { default: doSomething(); //wrong break; } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history... Coding Style introduced 2016-03-16 14:26 UTC by Report Bug Copy Issue Report Terminating statement must be on a line by itself As per the PSR-2 coding standard, the `break` (or other terminating) statement must be on a line of its own. switch ($expr) { case "A": doSomething(); break; //wrong case "B": doSomething(); break; //right case "C:": doSomething(); return true; //right } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history...
42			}
43			}
44
45			/**
46			* Convert string into integer
47			* Must be precise number, otherwise you will see and exception.
48			*
49			* @param $valueAsString
50			* @return BigInteger
51			* @throws Exception
52			*/
53			private function convertToInteger($valueAsString) {
54			if(!is_string($valueAsString)) {
55			throw new Exception("Cannot convert to integer. Expected string, but got " . gettype($valueAsString). ".");
56			}
57			$trimmedInput = trim($valueAsString);
58
59			try {
60			return BigInteger::of($trimmedInput);
61
62			} catch (ArithmeticException $e) {
63			throw new Exception("Returned value cannot be converted to an integer.",0, $e);
64			}
65
66			}
67
68			private function getFileSizeWindows($path)
69			{
70			$escapedPath = escapeshellarg($path);
71			return $this->convertToInteger(
72			exec("for %F in ($escapedPath) do @echo %~zF")
73			);
74			}
75
76			private function getFileSizeLinux($path)
77			{
78			$escapedPath = escapeshellarg($path);
79			return $this->convertToInteger(
80			exec("stat -Lc%s $escapedPath")
81			);
82			}
83
84			private function getFileSizeMac($path)
85			{
86			$escapedPath = escapeshellarg($path);
87			return $this->convertToInteger(
88			exec("stat -f%z $escapedPath")
89			);
90			}
91			}

jkuchar / BigFileTools

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ExecDriver::getFileSize() A

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