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@@ -212,7 +212,7 @@ class Application extends BaseApplication
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$io->writeError(sprintf('<warning>Warning: This development build of composer is over 60 days old. It is recommended to update it by running "%s self-update" to get the latest version.</warning>', $_SERVER['PHP_SELF']));
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}
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- if (!Platform::isWindows() && function_exists('exec') && !getenv('COMPOSER_ALLOW_SUPERUSER')) {
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+ if (!Platform::isWindows() && function_exists('exec') && !getenv('COMPOSER_ALLOW_SUPERUSER') && !file_exists('/.dockerenv')) {
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if (function_exists('posix_getuid') && posix_getuid() === 0) {
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if ($commandName !== 'self-update' && $commandName !== 'selfupdate') {
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$io->writeError('<warning>Do not run Composer as root/super user! See https://getcomposer.org/root for details</warning>');
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