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Add COMPOSER_MAX_PARALLEL_PROCESSES (#12356)

pull/12360/head
Maarten Bruna 2025-04-02 13:09:19 +02:00 committed by GitHub
parent fc5a3dd2d7
commit d0e4fbad7f
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2 changed files with 11 additions and 1 deletions
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5
doc/03-cli.md
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@ -1271,6 +1271,11 @@ defaults to 12 and must be between 1 and 50. If your proxy has issues with
concurrency maybe you want to lower this. Increasing it should generally not result concurrency maybe you want to lower this. Increasing it should generally not result
in performance gains. in performance gains.
### COMPOSER_MAX_PARALLEL_PROCESSES
Set to an an integer to configure how many processes can be executed in parallel.
This defaults to 10 and must be between 1 and 50.
### COMPOSER_IPRESOLVE ### COMPOSER_IPRESOLVE
Set to `4` or `6` to force IPv4 or IPv6 DNS resolution. This only works when the Set to `4` or `6` to force IPv4 or IPv6 DNS resolution. This only works when the

7
src/Composer/Util/ProcessExecutor.php
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@ -78,6 +78,7 @@ class ProcessExecutor
public function __construct(?IOInterface $io = null) public function __construct(?IOInterface $io = null)
{ {
$this->io = $io; $this->io = $io;
$this->resetMaxJobs();
} }
/** /**
@ -350,7 +351,11 @@ class ProcessExecutor
public function resetMaxJobs(): void public function resetMaxJobs(): void
{ {
$this->maxJobs = 10; if (is_numeric($maxJobs = Platform::getEnv('COMPOSER_MAX_PARALLEL_PROCESSES'))) {
$this->maxJobs = max(1, min(50, (int) $maxJobs));
} else {
$this->maxJobs = 10;
}
} }
/** /**