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Inform user if parallelization is disabled at runtime and why #3945

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Inform user if parallelization is disabled at runtime and why #3945

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6 changes: 6 additions & 0 deletions src/Runner.php
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Original file line number Diff line number Diff line change
Expand Up @@ -410,11 +410,17 @@ private function run()
// If verbosity is too high, turn off parallelism so the
// debug output is clean.
if (PHP_CODESNIFFER_VERBOSITY > 1) {
if ($this->config->parallel > 1) {
echo "Parallel processing disabled for clearer output at higher verbosity levels.";
}
$this->config->parallel = 1;
}

// If the PCNTL extension isn't installed, we can't fork.
if (function_exists('pcntl_fork') === false) {
if ($this->config->parallel > 1) {
echo "Parallel processing requires the 'pcntl' PHP extension. Falling back to single-thread execution.";
}
$this->config->parallel = 1;
}

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