|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace N98\Util; |
|
4
|
|
|
|
|
5
|
|
|
use RuntimeException; |
|
6
|
|
|
|
|
7
|
|
|
/** |
|
8
|
|
|
* Class Exec |
|
9
|
|
|
* |
|
10
|
|
|
* @package N98\Util |
|
11
|
|
|
*/ |
|
12
|
|
|
class Exec |
|
13
|
|
|
{ |
|
14
|
|
|
/** |
|
15
|
|
|
* @var string |
|
16
|
|
|
*/ |
|
17
|
|
|
const REDIRECT_STDERR_TO_STDOUT = ' 2>&1'; |
|
18
|
|
|
|
|
19
|
|
|
/** |
|
20
|
|
|
* @var int (0-255) |
|
21
|
|
|
*/ |
|
22
|
|
|
const CODE_CLEAN_EXIT = 0; |
|
23
|
|
|
|
|
24
|
|
|
/** |
|
25
|
|
|
* Every error in a pipe will be exited with an error code |
|
26
|
|
|
*/ |
|
27
|
|
|
const SET_O_PIPEFAIL = 'set -o pipefail; '; |
|
28
|
|
|
|
|
29
|
|
|
/** |
|
30
|
|
|
* @param string $command |
|
31
|
|
|
* @param string|null $output |
|
32
|
|
|
* @param int $returnCode |
|
|
|
|
|
|
33
|
|
|
*/ |
|
34
|
|
|
public static function run($command, &$output = null, &$returnCode = null) |
|
35
|
|
|
{ |
|
36
|
|
|
if (!self::allowed()) { |
|
37
|
|
|
$message = sprintf("No PHP exec(), can not execute command '%s'.", $command); |
|
38
|
|
|
throw new RuntimeException($message); |
|
39
|
|
|
} |
|
40
|
|
|
|
|
41
|
|
|
if (OperatingSystem::isBashCompatibleShell() && self::isPipefailOptionAvailable()) { |
|
42
|
|
|
$command = self::SET_O_PIPEFAIL . $command; |
|
43
|
|
|
} |
|
44
|
|
|
|
|
45
|
|
|
$command .= self::REDIRECT_STDERR_TO_STDOUT; |
|
46
|
|
|
|
|
47
|
|
|
exec($command, $outputArray, $returnCode); |
|
48
|
|
|
$output = self::parseCommandOutput((array) $outputArray); |
|
49
|
|
|
|
|
50
|
|
|
if ($returnCode !== self::CODE_CLEAN_EXIT) { |
|
51
|
|
|
throw new RuntimeException( |
|
52
|
|
|
sprintf("Exit status %d for command %s. Output was: %s", $returnCode, $command, $output) |
|
53
|
|
|
); |
|
54
|
|
|
} |
|
55
|
|
|
} |
|
56
|
|
|
|
|
57
|
|
|
/** |
|
58
|
|
|
* Exec class is allowed to run |
|
59
|
|
|
* |
|
60
|
|
|
* @return bool |
|
61
|
|
|
*/ |
|
62
|
|
|
public static function allowed() |
|
63
|
|
|
{ |
|
64
|
|
|
return function_exists('exec'); |
|
65
|
|
|
} |
|
66
|
|
|
|
|
67
|
|
|
/** |
|
68
|
|
|
* string from array of strings representing one line per entry |
|
69
|
|
|
* |
|
70
|
|
|
* @param array $commandOutput |
|
71
|
|
|
* @return string |
|
72
|
|
|
*/ |
|
73
|
|
|
private static function parseCommandOutput(array $commandOutput) |
|
74
|
|
|
{ |
|
75
|
|
|
return implode(PHP_EOL, $commandOutput) . PHP_EOL; |
|
76
|
|
|
} |
|
77
|
|
|
|
|
78
|
|
|
/** |
|
79
|
|
|
* @return bool |
|
80
|
|
|
*/ |
|
81
|
|
|
private static function isPipefailOptionAvailable() |
|
82
|
|
|
{ |
|
83
|
|
|
exec('set -o | grep pipefail 2>&1', $output, $returnCode); |
|
84
|
|
|
|
|
85
|
|
|
return $returnCode == self::CODE_CLEAN_EXIT; |
|
86
|
|
|
} |
|
87
|
|
|
} |
|
88
|
|
|
|
This check looks for
@paramannotations where the type inferred by our type inference engine differs from the declared type.It makes a suggestion as to what type it considers more descriptive.
Most often this is a case of a parameter that can be null in addition to its declared types.