Commit8b1c680

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Don't assume that file binary exists on *nix OS

Certain lightweight distributions such as Alpine Linux (popular for smaller Docker images) do not include it by default.

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+11

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lines changed

src/Symfony/Component/HttpFoundation/File/MimeType
- FileBinaryMimeTypeGuesser.php

+11

-1

lines changed

Lines changed: 11 additions & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -43,7 +43,7 @@ public function __construct($cmd = 'file -b --mime %s 2>/dev/null')`
`43`	`43`	`*/`
`44`	`44`	`publicstaticfunctionisSupported()`
`45`	`45`	`{`
`46`		`-return'\\' !==DIRECTORY_SEPARATOR &&function_exists('passthru') &&function_exists('escapeshellarg');`
	`46`	`+return'\\' !==DIRECTORY_SEPARATOR &&function_exists('passthru') &&function_exists('escapeshellarg') &&static::hasFileBinary();`
`47`	`47`	`}`
`48`	`48`
`49`	`49`	`/**`
`@@ -82,4 +82,14 @@ public function guess($path)`
`82`	`82`
`83`	`83`	`return$match[1];`
`84`	`84`	`}`
	`85`	`+`
	`86`	`+/**`
	`87`	`+ * @return bool`
	`88`	`+ */`
	`89`	`+privatestaticfunctionhasFileBinary()`
	`90`	`+ {`
	`91`	`+static$exists;`
	`92`	`+`
	`93`	`+returnisset($exists) ?$exists : ($exists =null !==shell_exec('command -v file'));`
	`94`	`+ }`
`85`	`95`	`}`

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