Parallelize repository cloning during development environment setup

Agent-Logs-Url: https://github.com/wp-cli/wp-cli-dev/sessions/6509f703-3861-4c87-83a6-f0247ed1904b

Co-authored-by: swissspidy <841956+swissspidy@users.noreply.github.com>

Author: Copilot

.maintenance/clone-all-repositories.php

@@ -35,6 +35,7 @@
 
 $pwd            = getcwd();
 $update_folders = [];
+$clone_list     = [];
 
 foreach ( $repositories as $repository ) {
 	if ( in_array( $repository->name, $skip_list, true ) ) {
@@ -44,13 +45,17 @@
 	$destination = isset( $clone_destination_map[ $repository->name ] ) ? $clone_destination_map[ $repository->name ] : $repository->name;
 
 	if ( ! is_dir( $destination ) ) {
-		printf( "Fetching \033[32mwp-cli/{$repository->name}\033[0m...\n" );
-		$clone_url = getenv( 'GITHUB_ACTION' ) ? $repository->clone_url : $repository->ssh_url;
-		system( "git clone {$clone_url} {$destination}" );
+		$clone_url    = getenv( 'GITHUB_ACTION' ) ? $repository->clone_url : $repository->ssh_url;
+		$clone_list[] = "{$destination} {$clone_url}";
 	}
 
 	$update_folders[] = $destination;
 }
 
-$updates = implode( '\n', $update_folders );
+if ( ! empty( $clone_list ) ) {
+	$clones = implode( "\n", $clone_list );
+	system( "echo '$clones' | xargs -n2 -P8 php .maintenance/clone-repository.php" );
+}
+
+$updates = implode( "\n", $update_folders );
 system( "echo '$updates' | xargs -n1 -P8 -I% php .maintenance/refresh-repository.php %" );

.maintenance/clone-repository.php

@@ -0,0 +1,11 @@
+<?php
+
+if ( ! isset( $argv[1], $argv[2] ) ) {
+	exit( "Usage: php clone-repository.php <destination> <clone_url>\n" );
+}
+
+$destination = $argv[1];
+$clone_url   = $argv[2];
+
+printf( "Fetching \033[32m%s\033[0m...\n", $destination );
+system( 'git clone ' . escapeshellarg( $clone_url ) . ' ' . escapeshellarg( $destination ) );