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8e0e07664a
Summary: Ref T13098. Historically, Phabricator was split into three parts: - Phabricator, the server. - Arcanist, the client. - libphutil, libraries shared between the client and server. One imagined use case for this was that `libphutil` might become a general-purpose library that other projects would use. However, this didn't really happen, and it seems unlikely to at this point: Phabricator has become a relatively more sophisticated application platform; we didn't end up seeing or encouraging much custom development; what custom development there is basically embraces all of Phabricator since there are huge advantages to doing so; and a general "open source is awful" sort of factor here in the sense that open source users often don't have goals well aligned to our goals. Turning "arc" into a client platform and building package management solidify us in this direction of being a standalone platform, not a standalone utility library. Phabricator also depends on `arcanist/`. If it didn't, there would be a small advantage to saying "shared code + client for client, shared code + server for server", but there's no such distinction and it seems unlikely that one will ever exist. Even if it did, I think this has little value. Nowadays, I think this separation has no advantages for us and one significant cost: it makes installing `arcanist` more difficult for end-users. This will need some more finesssing (Phabricator will need some changes for compatibility, and a lot of stuff that still says "libphutil" or "phutil" may eventually want to say "arcanist"), and some stuff (like xhpast) is probably straight-up broken right now and needs some tweaking, but I don't anticipate any major issues here. There was never anything particularly magical about libphutil as a separate standalone library. Test Plan: Ran `arc`, it gets about as far as it did before. Reviewers: amckinley Reviewed By: amckinley Maniphest Tasks: T13098 Differential Revision: https://secure.phabricator.com/D19688
131 lines
3 KiB
PHP
Executable file
131 lines
3 KiB
PHP
Executable file
#!/usr/bin/env php
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<?php
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if (function_exists('pcntl_async_signals')) {
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pcntl_async_signals(true);
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} else {
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declare(ticks = 1);
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}
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require_once dirname(__FILE__).'/../../__init_script__.php';
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if (!posix_isatty(STDOUT)) {
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$sid = posix_setsid();
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if ($sid <= 0) {
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throw new Exception(pht('Failed to create new process session!'));
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}
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}
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$args = new PhutilArgumentParser($argv);
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$args->setTagline(pht('daemon executor'));
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$args->setSynopsis(<<<EOHELP
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**exec_daemon.php** [__options__] __daemon__ ...
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Run an instance of __daemon__.
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EOHELP
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);
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$args->parse(
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array(
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array(
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'name' => 'trace',
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'help' => pht('Enable debug tracing.'),
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),
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array(
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'name' => 'trace-memory',
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'help' => pht('Enable debug memory tracing.'),
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),
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array(
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'name' => 'verbose',
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'help' => pht('Enable verbose activity logging.'),
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),
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array(
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'name' => 'label',
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'short' => 'l',
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'param' => 'label',
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'help' => pht(
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'Optional process label. Makes "%s" nicer, no behavioral effects.',
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'ps'),
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),
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array(
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'name' => 'daemon',
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'wildcard' => true,
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),
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));
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$trace_memory = $args->getArg('trace-memory');
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$trace_mode = $args->getArg('trace') || $trace_memory;
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$verbose = $args->getArg('verbose');
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if (function_exists('posix_isatty') && posix_isatty(STDIN)) {
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fprintf(STDERR, pht('Reading daemon configuration from stdin...')."\n");
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}
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$config = @file_get_contents('php://stdin');
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$config = id(new PhutilJSONParser())->parse($config);
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PhutilTypeSpec::checkMap(
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$config,
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array(
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'log' => 'optional string|null',
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'argv' => 'optional list<wild>',
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'load' => 'optional list<string>',
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'down' => 'optional int',
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));
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$log = idx($config, 'log');
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if ($log) {
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ini_set('error_log', $log);
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PhutilErrorHandler::setErrorListener(array('PhutilDaemon', 'errorListener'));
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}
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$load = idx($config, 'load', array());
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foreach ($load as $library) {
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$library = Filesystem::resolvePath($library);
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phutil_load_library($library);
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}
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PhutilErrorHandler::initialize();
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$daemon = $args->getArg('daemon');
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if (!$daemon) {
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throw new PhutilArgumentUsageException(
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pht('Specify which class of daemon to start.'));
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} else if (count($daemon) > 1) {
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throw new PhutilArgumentUsageException(
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pht('Specify exactly one daemon to start.'));
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} else {
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$daemon = head($daemon);
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if (!class_exists($daemon)) {
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throw new PhutilArgumentUsageException(
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pht(
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'No class "%s" exists in any known library.',
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$daemon));
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} else if (!is_subclass_of($daemon, 'PhutilDaemon')) {
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throw new PhutilArgumentUsageException(
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pht(
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'Class "%s" is not a subclass of "%s".',
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$daemon,
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'PhutilDaemon'));
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}
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}
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$argv = idx($config, 'argv', array());
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$daemon = newv($daemon, array($argv));
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if ($trace_mode) {
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$daemon->setTraceMode();
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}
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if ($trace_memory) {
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$daemon->setTraceMemory();
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}
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if ($verbose) {
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$daemon->setVerbose(true);
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}
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$down_duration = idx($config, 'down');
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if ($down_duration) {
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$daemon->setScaledownDuration($down_duration);
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}
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$daemon->execute();
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