thekid
commented
2 years ago Unfortunately, we need to duplicate the lang.Process::resolve() code here to make it work without having to use exceptions for flow control:
trait Docker {
// ...
/**
* Resolves a list of commands.
*
* @param string $command
* @return string
* @throws lang.IllegalStateException
*/
private function resolve($commands) {
foreach ($commands as $command) {
// PATHEXT is in form ".{EXT}[;.{EXT}[;...]]"
$extensions= [''] + explode(PATH_SEPARATOR, getenv('PATHEXT'));
clearstatcache();
// If the command is in fully qualified form and refers to a file
// that does not exist (e.g. "C:\DoesNotExist.exe", "\DoesNotExist.com"
// or /usr/bin/doesnotexist), do not attempt to search for it.
if ((DIRECTORY_SEPARATOR === $command[0]) || ((strncasecmp(PHP_OS, 'Win', 3) === 0) &&
strlen($command) > 1 && (':' === $command[1] || '/' === $command[0])
)) {
foreach ($extensions as $ext) {
$q= $command.$ext;
if (file_exists($q) && !is_dir($q)) return realpath($q);
}
continue;
}
// Check the PATH environment setting for possible locations of the
// executable if its name is not a fully qualified path name.
$paths= explode(PATH_SEPARATOR, getenv('PATH'));
foreach ($paths as $path) {
foreach ($extensions as $ext) {
$q= $path.DIRECTORY_SEPARATOR.$command.$ext;
if (file_exists($q) && !is_dir($q)) return realpath($q);
}
}
}
throw new IllegalStateException('Cannot find any of '.implode(', ', $commands));
}
/** Returns docker runtime */
private function command() {
return $this->command ?? $this->command= CommandLine::forName(PHP_OS)->compose($this->resolve(['docker', 'podman']), []);
}
// ....
}
Podman serves as a snap-in replacement for Docker. The
testandruntimesubcommands should try to search for Podman if Docker is not installed.