linux_block_sync.php

<?php

chdir("/opt/systemd/linux2");
$handle = fopen("/tmp/.linux.git_lock", "a");
while (!flock($handle, LOCK_EX | LOCK_NB)) {
	printf("Waiting for the lock...\n");
	sleep(1);
}

function ca($str)
{
	return substr($str, 1);
}

$remotes = [
	"@acme/linux",
	"@arm64/linux",
	"@axboe/linux-block",
	"@bluetooth/bluez",
	"@bp/bp",
	"@bpf/bpf",
	"@bpf/bpf-next",
	"@brauner/linux",
	"@brauner/xfstests-dev",
	"@clk/linux",
	"@crng/random",
	"@dhowells/linux-fs",
	"@google/android/kernel/common",
	"@gregkh/char-misc",
	"@gregkh/driver-core",
	"@gregkh/staging",
	"@herbert/cryptodev-2.6",
	"@kdave/linux",
	"@kvalo/ath",
	"@luto/linux",
	"@mchehab/linux-media",
	"@mellanox/linux",
	"@mingo/tip",
	"@netdev/net",
	"@netdev/net-next",
	"@palmer/linux",
	"@paulmck/linux-rcu",
	"@rdma/rdma",
	"@robh/linux",
	"@rostedt/linux-trace",
	"@shuah/linux-kselftest",
	"@snawrocki/clk",
	"@stable/linux",
	"@stable/linux-stable-rc",
	"@terrelln/linux",
	"@tglx/devel",
	"@tiwai/sound",
	"@tj/cgroup",
	"@torvalds/linux",
];
$pids = [];
foreach ($remotes as $remote) {
	$pid = pcntl_fork();
	if (!$pid) {
		printf("Fetching {$remote}...\n");
		$remote = escapeshellarg($remote);
		shell_exec("git fetch --prune {$remote}");
		exit(0);
	}
	$pids[] = $pid;
}
foreach ($pids as $pid)
	pcntl_waitpid($pid, $status, WUNTRACED);
printf("Fetch finished!\n");


$active_branches = [];
$tmp = preg_split("/\s+/", trim(shell_exec("git branch --list | grep -oE '\s.+'")));
foreach ($tmp as $p)
	$active_branches[trim($p)] = true;
unset($p);

$remote_branches = preg_split("/\s+/", trim(shell_exec("git branch --list --remote | grep -oE '\s.+'")));
foreach ($remote_branches as &$p)
	$p = ca(trim($p));
unset($p);

$i = 0;
printf("Tracking new branches...\n");
foreach ($remote_branches as $branch) {

	/* Skip target push. */
	if (preg_match("/git(hub|lab)/", $branch))
		continue;

	if (!isset($active_branches[$branch])) {
		$i++;
		$t_branch = escapeshellarg($branch);
		$t_remote = escapeshellarg("remotes/@{$branch}");
		shell_exec("git branch --track {$t_branch} {$t_remote}");
		$active_branches[$branch] = true;
	}
}
printf("There are %d new branch(es)\n", $i);

// Pull for master
shell_exec("git pull");

$pidRefUpdate = pcntl_fork();
if (!$pidRefUpdate) {
	printf("Updating refs...\n");
	foreach ($active_branches as $branch => $p) {
		if (!strcmp($branch, "master"))
			continue;

		$ref           = escapeshellarg("refs/heads/{$branch}");
		$remote_target = escapeshellarg("remotes/@{$branch}");
		shell_exec("git update-ref {$ref} {$remote_target}");
	}
	printf("Refs have been updated!\n");
	exit(0);
}
shell_exec("renice -n 20 ".escapeshellarg($pidRefUpdate));

$remotes_for_push = [
	"@@github.com/ammarfaizi2/linux-block",
	"@@gitlab.com/ammarfaizi2/linux-block",
	"@@github.com/ammarfaizi2/linux-fork",
	// "@@github.com/GNUWeeb/linux",
];
$pids = [];
foreach ($remotes_for_push as $remote) {
	$remote_esc = escapeshellarg($remote);
	printf("Pushing branches to %s...\n", $remote);
	shell_exec("git push --force --all {$remote_esc}");
	printf("Pushing tags to %s...\n", $remote);
	shell_exec("git push --force --tags {$remote_esc}");
}
printf("Push finished!\n");
pcntl_waitpid($pidRefUpdate, $status, WUNTRACED);

flock($handle, LOCK_UN);
fclose($handle);