Index: scripts/init/init-arcanist.php =================================================================== --- scripts/init/init-arcanist.php +++ scripts/init/init-arcanist.php @@ -1,589 +1,3 @@ checkEnvironment(); - if ($err) { - return $err; - } - - $err = $this->includeCoreLibraries(); - if ($err) { - return $err; - } - - PhutilTranslator::getInstance() - ->setLocale(PhutilLocale::loadLocale('en_US')) - ->setTranslations(PhutilTranslation::getTranslationMapForLocale('en_US')); - - ini_set('memory_limit', -1); - - try { - return $this->executeCore($argv); - } catch (PhutilArgumentUsageException $ex) { - fwrite( - STDERR, - tsprintf( - "**%s:** %s\n", - pht('Usage Exception'), - $ex->getMessage())); - return 77; - } - } - - private function executeCore(array $argv) { - $config_args = array( - array( - 'name' => 'library', - 'param' => 'path', - 'help' => pht('Load a libphutil library.'), - 'repeat' => true, - ), - array( - 'name' => 'config', - 'param' => 'key=value', - 'repeat' => true, - 'help' => pht('Specify a runtime configuration value.'), - ), - ); - - $args = id(new PhutilArgumentParser($argv)) - ->parseStandardArguments(); - - $is_trace = $args->getArg('trace'); - if ($is_trace) { - $this->logTrace(pht('ARGV'), csprintf('%Ls', $argv)); - } - - $args->parsePartial($config_args, true); - - $config = $this->loadConfiguration($args); - - $this->loadLibraries($args, $config); - - $toolset = $this->newToolset($argv); - - $args->parsePartial($toolset->getToolsetArguments()); - - $workflows = $this->newWorkflows($toolset); - - $phutil_workflows = array(); - foreach ($workflows as $key => $workflow) { - $phutil_workflows[$key] = $workflow->newPhutilWorkflow(); - } - - $unconsumed_argv = $args->getUnconsumedArgumentVector(); - - if (!$unconsumed_argv) { - // TOOLSETS: This means the user just ran "arc" or some other top-level - // toolset without any workflow argument. We should give them a summary - // of the toolset, a list of workflows, and a pointer to "arc help" for - // more details. - - // A possible exception is "arc --help", which should perhaps pass - // through and act like "arc help". - throw new PhutilArgumentUsageException(pht('Choose a workflow!')); - } - - $result = $this->resolveAliases($workflows, $unconsumed_argv, $config); - if (is_int($result)) { - return $result; - } - - $args->setUnconsumedArgumentVector($result); - - return $args->parseWorkflows($phutil_workflows); - } - - - /** - * Perform some sanity checks against the possible diversity of PHP builds in - * the wild, like very old versions and builds that were compiled with flags - * that exclude core functionality. - */ - private function checkEnvironment() { - // NOTE: We don't have phutil_is_windows() yet here. - $is_windows = (DIRECTORY_SEPARATOR != '/'); - - // We use stream_socket_pair() which is not available on Windows earlier. - $min_version = ($is_windows ? '5.3.0' : '5.2.3'); - $cur_version = phpversion(); - if (version_compare($cur_version, $min_version, '<')) { - $message = sprintf( - 'You are running a version of PHP ("%s"), which is older than the '. - 'minimum supported version ("%s"). Update PHP to continue.', - $cur_version, - $min_version); - return $this->fatalError($message); - } - - if ($is_windows) { - $need_functions = array( - 'curl_init' => array('builtin-dll', 'php_curl.dll'), - ); - } else { - $need_functions = array( - 'curl_init' => array( - 'text', - "You need to install the cURL PHP extension, maybe with ". - "'apt-get install php5-curl' or 'yum install php53-curl' or ". - "something similar.", - ), - 'json_decode' => array('flag', '--without-json'), - ); - } - - $problems = array(); - - $config = null; - $show_config = false; - foreach ($need_functions as $fname => $resolution) { - if (function_exists($fname)) { - continue; - } - - static $info; - if ($info === null) { - ob_start(); - phpinfo(INFO_GENERAL); - $info = ob_get_clean(); - $matches = null; - if (preg_match('/^Configure Command =>\s*(.*?)$/m', $info, $matches)) { - $config = $matches[1]; - } - } - - list($what, $which) = $resolution; - - if ($what == 'flag' && strpos($config, $which) !== false) { - $show_config = true; - $problems[] = sprintf( - 'The build of PHP you are running was compiled with the configure '. - 'flag "%s", which means it does not support the function "%s()". '. - 'This function is required for Arcanist to run. Install a standard '. - 'build of PHP or rebuild it without this flag. You may also be '. - 'able to build or install the relevant extension separately.', - $which, - $fname); - continue; - } - - if ($what == 'builtin-dll') { - $problems[] = sprintf( - 'The build of PHP you are running does not have the "%s" extension '. - 'enabled. Edit your php.ini file and uncomment the line which '. - 'reads "extension=%s".', - $which, - $which); - continue; - } - - if ($what == 'text') { - $problems[] = $which; - continue; - } - - $problems[] = sprintf( - 'The build of PHP you are running is missing the required function '. - '"%s()". Rebuild PHP or install the extension which provides "%s()".', - $fname, - $fname); - } - - if ($problems) { - if ($show_config) { - $problems[] = "PHP was built with this configure command:\n\n{$config}"; - } - $problems = implode("\n\n", $problems); - return $this->fatalError($problems); - } - - return 0; - } - - private function fatalError($message) { - echo "CONFIGURATION ERROR\n\n"; - echo $message; - echo "\n\n"; - return 1; - } - - private function includeCoreLibraries() { - // Adjust 'include_path' to add locations where we'll search for libphutil. - // We look in these places: - // - // - Next to 'arcanist/'. - // - Anywhere in the normal PHP 'include_path'. - // - Inside 'arcanist/externals/includes/'. - // - // When looking in these places, we expect to find a 'libphutil/' directory. - - // The 'arcanist/' directory. - $arcanist_dir = dirname(dirname(dirname(__FILE__))); - - // The parent directory of 'arcanist/'. - $parent_dir = dirname($arcanist_dir); - - // The 'arcanist/externals/includes/' directory. - $include_dir = implode( - DIRECTORY_SEPARATOR, - array( - $arcanist_dir, - 'externals', - 'includes', - )); - - $php_include_path = ini_get('include_path'); - $php_include_path = implode( - PATH_SEPARATOR, - array( - $parent_dir, - $php_include_path, - $include_dir, - )); - - ini_set('include_path', $php_include_path); - - // Load libphutil. - @include_once 'libphutil/scripts/__init_script__.php'; - - if (!@constant('__LIBPHUTIL__')) { - return $this->fatalError( - 'Unable to load libphutil. Put "libphutil/" next to "arcanist/"; '. - 'or update your PHP "include_path" to include the parent directory '. - 'of "libphutil/"; or symlink "libphutil" into '. - '"arcanist/externals/includes/".'); - } - - // Load Arcanist. - phutil_load_library($arcanist_dir.'/src/'); - - return 0; - } - - private function loadConfiguration(PhutilArgumentParser $args) { - $configuration_manager = new ArcanistConfigurationManager(); - - $cwd = getcwd(); - $working_copy = ArcanistWorkingCopyIdentity::newFromPath($cwd); - $configuration_manager->setWorkingCopyIdentity($working_copy); - - $configuration_manager->applyRuntimeArcConfig($args); - - return $configuration_manager; - } - - private function loadLibraries( - PhutilArgumentParser $args, - ArcanistConfigurationManager $config) { - - $is_trace = $args->getArg('trace'); - - if ($is_trace) { - $libraries = array( - 'phutil', - 'arcanist', - ); - - foreach ($libraries as $library_name) { - $this->logTrace( - pht('LOAD'), - pht( - 'Loaded "%s" from "%s".', - $library_name, - phutil_get_library_root($library_name))); - } - } - - $load = array(); - $working_copy = $config->getWorkingCopyIdentity(); - - $cli_libraries = $args->getArg('library'); - if ($cli_libraries) { - $load[] = array( - '--library', - $cli_libraries, - ); - } else { - $system_config = $config->readSystemArcConfig(); - $load[] = array( - $config->getSystemArcConfigLocation(), - idx($system_config, 'load', array()), - ); - - $global_config = $config->readUserArcConfig(); - $load[] = array( - $config->getUserConfigurationFileLocation(), - idx($global_config, 'load', array()), - ); - - $load[] = array( - '.arcconfig', - $working_copy->getProjectConfig('load'), - ); - - $load[] = array( - // TODO: We could explain exactly where this is coming from more - // clearly. - './.../arc/config', - $working_copy->getLocalConfig('load'), - ); - - $load[] = array( - '--config load=...', - $config->getRuntimeConfig('load', array()), - ); - } - - foreach ($load as $spec) { - list($source, $libraries) = $spec; - if ($is_trace) { - $this->logTrace( - pht('LOAD'), - pht( - 'Loading libraries from "%s"...', - $source)); - } - - if (!$libraries) { - if ($is_trace) { - $this->logTrace(pht('NONE'), pht('Nothing to load.')); - } - continue; - } - - if (!is_array($libraries)) { - throw new PhutilArgumentUsageException( - pht( - 'Libraries specified by "%s" are not formatted correctly. '. - 'Expected a list of paths. Check your configuration.', - $source)); - } - - foreach ($libraries as $library) { - $this->loadLibrary($source, $library, $working_copy, $is_trace); - } - } - } - - private function loadLibrary( - $source, - $location, - ArcanistWorkingCopyIdentity $working_copy, - $is_trace) { - - // Try to resolve the library location. We look in several places, in - // order: - // - // 1. Inside the working copy. This is for phutil libraries within the - // project. For instance "library/src" will resolve to - // "./library/src" if it exists. - // 2. In the same directory as the working copy. This allows you to - // check out a library alongside a working copy and reference it. - // If we haven't resolved yet, "library/src" will try to resolve to - // "../library/src" if it exists. - // 3. Using normal libphutil resolution rules. Generally, this means - // that it checks for libraries next to libphutil, then libraries - // in the PHP include_path. - // - // Note that absolute paths will just resolve absolutely through rule (1). - - $resolved = false; - - // Check inside the working copy. This also checks absolute paths, since - // they'll resolve absolute and just ignore the project root. - $resolved_location = Filesystem::resolvePath( - $location, - $working_copy->getProjectRoot()); - if (Filesystem::pathExists($resolved_location)) { - $location = $resolved_location; - $resolved = true; - } - - // If we didn't find anything, check alongside the working copy. - if (!$resolved) { - $resolved_location = Filesystem::resolvePath( - $location, - dirname($working_copy->getProjectRoot())); - if (Filesystem::pathExists($resolved_location)) { - $location = $resolved_location; - $resolved = true; - } - } - - if ($is_trace) { - $this->logTrace( - pht('LOAD'), - pht('Loading phutil library from "%s"...', $location)); - } - - $error = null; - try { - phutil_load_library($location); - } catch (PhutilBootloaderException $ex) { - fwrite( - STDERR, - "%s", - tsprintf( - "** %s ** %s\n", - pht( - 'Failed to load phutil library at location "%s". This library '. - 'is specified by "%s". Check that the setting is correct and '. - 'the library is located in the right place.', - $location, - $source))); - - $prompt = pht('Continue without loading library?'); - if (!phutil_console_confirm($prompt)) { - throw $ex; - } - } catch (PhutilLibraryConflictException $ex) { - if ($ex->getLibrary() != 'arcanist') { - throw $ex; - } - - // NOTE: If you are running `arc` against itself, we ignore the library - // conflict created by loading the local `arc` library (in the current - // working directory) and continue without loading it. - - // This means we only execute code in the `arcanist/` directory which is - // associated with the binary you are running, whereas we would normally - // execute local code. - - // This can make `arc` development slightly confusing if your setup is - // especially bizarre, but it allows `arc` to be used in automation - // workflows more easily. For some context, see PHI13. - - $executing_directory = dirname(dirname(__FILE__)); - $working_directory = dirname($location); - - fwrite( - STDERR, - tsprintf( - "** %s ** %s\n", - pht('VERY META'), - pht( - 'You are running one copy of Arcanist (at path "%s") against '. - 'another copy of Arcanist (at path "%s"). Code in the current '. - 'working directory will not be loaded or executed.', - $executing_directory, - $working_directory))); - } - } - - private function newToolset(array $argv) { - $binary = basename($argv[0]); - - $toolsets = ArcanistToolset::newToolsetMap(); - if (!isset($toolsets[$binary])) { - throw new PhutilArgumentUsageException( - pht( - 'Arcanist toolset "%s" is unknown. The Arcanist binary should '. - 'be executed so that "argv[0]" identifies a supported toolset. '. - 'Rename the binary or install the library that provides the '. - 'desired toolset. Current available toolsets: %s.', - $binary, - implode(', ', array_keys($toolsets)))); - } - - return $toolsets[$binary]; - } - - private function newWorkflows(ArcanistToolset $toolset) { - $workflows = id(new PhutilClassMapQuery()) - ->setAncestorClass('ArcanistWorkflow') - ->execute(); - - foreach ($workflows as $key => $workflow) { - if (!$workflow->supportsToolset($toolset)) { - unset($workflows[$key]); - } - } - - $map = array(); - foreach ($workflows as $workflow) { - $key = $workflow->getWorkflowName(); - if (isset($map[$key])) { - throw new Exception( - pht( - 'Two workflows ("%s" and "%s") both have the same name ("%s") '. - 'and both support the current toolset ("%s", "%s"). Each '. - 'workflow in a given toolset must have a unique name.', - get_class($workflow), - get_class($map[$key]), - get_class($toolset), - $toolset->getToolsetKey())); - } - $map[$key] = id(clone $workflow) - ->setToolset($toolset); - } - - return $map; - } - - private function resolveAliases( - array $workflows, - array $argv, - ArcanistConfigurationManager $config) { - - $command = head($argv); - - // If this is a match for a recognized workflow, just return the arguments - // unmodified. You aren't allowed to alias over real workflows. - if (isset($workflows[$command])) { - return $argv; - } - - $aliases = ArcanistAliasWorkflow::getAliases($config); - list($new_command, $new_args) = ArcanistAliasWorkflow::resolveAliases( - $command, - $this, - array_slice($argv, 1), - $config); - - // You can't alias something to itself, so if the new command isn't new, - // we're all done resolving aliases. - if ($new_command === $command) { - return $argv; - } - - $full_alias = idx($aliases, $command, array()); - $full_alias = implode(' ', $full_alias); - - // Run shell command aliases. - if (ArcanistAliasWorkflow::isShellCommandAlias($new_command)) { - fwrite( - STDERR, - tsprintf( - '** %s ** arc %s -> $ %s', - pht('ALIAS'), - $command, - $shell_cmd)); - - $shell_cmd = substr($full_alias, 1); - - return phutil_passthru('%C %Ls', $shell_cmd, $args); - } - - fwrite( - STDERR, - tsprintf( - '** %s ** arc %s -> arc %s', - pht('ALIAS'), - $command, - $new_command)); - - $new_argv = array_merge(array($new_command), $new_args); - - return $this->resolveAliases($workflows, $new_argv, $config); - } - - private function logTrace($label, $message) { - echo tsprintf( - "** %s ** %s\n", - $label, - $message); - } - -} +require_once dirname(dirname(dirname(__FILE__))).'/support/ArcanistRuntime.php'; Index: support/ArcanistRuntime.php =================================================================== --- /dev/null +++ support/ArcanistRuntime.php @@ -0,0 +1,588 @@ +checkEnvironment(); + if ($err) { + return $err; + } + + $err = $this->includeCoreLibraries(); + if ($err) { + return $err; + } + + PhutilTranslator::getInstance() + ->setLocale(PhutilLocale::loadLocale('en_US')) + ->setTranslations(PhutilTranslation::getTranslationMapForLocale('en_US')); + + try { + return $this->executeCore($argv); + } catch (PhutilArgumentUsageException $ex) { + fwrite( + STDERR, + tsprintf( + "**%s:** %s\n", + pht('Usage Exception'), + $ex->getMessage())); + return 77; + } + } + + private function executeCore(array $argv) { + $config_args = array( + array( + 'name' => 'library', + 'param' => 'path', + 'help' => pht('Load a libphutil library.'), + 'repeat' => true, + ), + array( + 'name' => 'config', + 'param' => 'key=value', + 'repeat' => true, + 'help' => pht('Specify a runtime configuration value.'), + ), + ); + + $args = id(new PhutilArgumentParser($argv)) + ->parseStandardArguments(); + + $is_trace = $args->getArg('trace'); + if ($is_trace) { + $this->logTrace(pht('ARGV'), csprintf('%Ls', $argv)); + } + + $args->parsePartial($config_args, true); + + $config = $this->loadConfiguration($args); + + $this->loadLibraries($args, $config); + + $toolset = $this->newToolset($argv); + + $args->parsePartial($toolset->getToolsetArguments()); + + $workflows = $this->newWorkflows($toolset); + + $phutil_workflows = array(); + foreach ($workflows as $key => $workflow) { + $phutil_workflows[$key] = $workflow->newPhutilWorkflow(); + } + + $unconsumed_argv = $args->getUnconsumedArgumentVector(); + + if (!$unconsumed_argv) { + // TOOLSETS: This means the user just ran "arc" or some other top-level + // toolset without any workflow argument. We should give them a summary + // of the toolset, a list of workflows, and a pointer to "arc help" for + // more details. + + // A possible exception is "arc --help", which should perhaps pass + // through and act like "arc help". + throw new PhutilArgumentUsageException(pht('Choose a workflow!')); + } + + $result = $this->resolveAliases($workflows, $unconsumed_argv, $config); + if (is_int($result)) { + return $result; + } + + $args->setUnconsumedArgumentVector($result); + + return $args->parseWorkflows($phutil_workflows); + } + + + /** + * Perform some sanity checks against the possible diversity of PHP builds in + * the wild, like very old versions and builds that were compiled with flags + * that exclude core functionality. + */ + private function checkEnvironment() { + // NOTE: We don't have phutil_is_windows() yet here. + $is_windows = (DIRECTORY_SEPARATOR != '/'); + + // We use stream_socket_pair() which is not available on Windows earlier. + $min_version = ($is_windows ? '5.3.0' : '5.2.3'); + $cur_version = phpversion(); + if (version_compare($cur_version, $min_version, '<')) { + $message = sprintf( + 'You are running a version of PHP ("%s"), which is older than the '. + 'minimum supported version ("%s"). Update PHP to continue.', + $cur_version, + $min_version); + return $this->fatalError($message); + } + + if ($is_windows) { + $need_functions = array( + 'curl_init' => array('builtin-dll', 'php_curl.dll'), + ); + } else { + $need_functions = array( + 'curl_init' => array( + 'text', + "You need to install the cURL PHP extension, maybe with ". + "'apt-get install php5-curl' or 'yum install php53-curl' or ". + "something similar.", + ), + 'json_decode' => array('flag', '--without-json'), + ); + } + + $problems = array(); + + $config = null; + $show_config = false; + foreach ($need_functions as $fname => $resolution) { + if (function_exists($fname)) { + continue; + } + + static $info; + if ($info === null) { + ob_start(); + phpinfo(INFO_GENERAL); + $info = ob_get_clean(); + $matches = null; + if (preg_match('/^Configure Command =>\s*(.*?)$/m', $info, $matches)) { + $config = $matches[1]; + } + } + + list($what, $which) = $resolution; + + if ($what == 'flag' && strpos($config, $which) !== false) { + $show_config = true; + $problems[] = sprintf( + 'The build of PHP you are running was compiled with the configure '. + 'flag "%s", which means it does not support the function "%s()". '. + 'This function is required for Arcanist to run. Install a standard '. + 'build of PHP or rebuild it without this flag. You may also be '. + 'able to build or install the relevant extension separately.', + $which, + $fname); + continue; + } + + if ($what == 'builtin-dll') { + $problems[] = sprintf( + 'The build of PHP you are running does not have the "%s" extension '. + 'enabled. Edit your php.ini file and uncomment the line which '. + 'reads "extension=%s".', + $which, + $which); + continue; + } + + if ($what == 'text') { + $problems[] = $which; + continue; + } + + $problems[] = sprintf( + 'The build of PHP you are running is missing the required function '. + '"%s()". Rebuild PHP or install the extension which provides "%s()".', + $fname, + $fname); + } + + if ($problems) { + if ($show_config) { + $problems[] = "PHP was built with this configure command:\n\n{$config}"; + } + $problems = implode("\n\n", $problems); + return $this->fatalError($problems); + } + + return 0; + } + + private function fatalError($message) { + echo "CONFIGURATION ERROR\n\n"; + echo $message; + echo "\n\n"; + return 1; + } + + private function includeCoreLibraries() { + // Adjust 'include_path' to add locations where we'll search for libphutil. + // We look in these places: + // + // - Next to 'arcanist/'. + // - Anywhere in the normal PHP 'include_path'. + // - Inside 'arcanist/externals/includes/'. + // + // When looking in these places, we expect to find a 'libphutil/' directory. + + // The 'arcanist/' directory. + $arcanist_dir = dirname(dirname(__FILE__)); + + // The parent directory of 'arcanist/'. + $parent_dir = dirname($arcanist_dir); + + // The 'arcanist/externals/includes/' directory. + $include_dir = implode( + DIRECTORY_SEPARATOR, + array( + $arcanist_dir, + 'externals', + 'includes', + )); + + $php_include_path = ini_get('include_path'); + $php_include_path = implode( + PATH_SEPARATOR, + array( + $parent_dir, + $php_include_path, + $include_dir, + )); + + ini_set('include_path', $php_include_path); + + // Load libphutil. Note that this has some side effects, including + // adjusting some PHP configuration values. + @include_once 'libphutil/scripts/__init_script__.php'; + + if (!@constant('__LIBPHUTIL__')) { + return $this->fatalError( + 'Unable to load libphutil. Put "libphutil/" next to "arcanist/"; '. + 'or update your PHP "include_path" to include the parent directory '. + 'of "libphutil/"; or symlink "libphutil" into '. + '"arcanist/externals/includes/".'); + } + + // Load Arcanist. + phutil_load_library($arcanist_dir.'/src/'); + + return 0; + } + + private function loadConfiguration(PhutilArgumentParser $args) { + $configuration_manager = new ArcanistConfigurationManager(); + + $cwd = getcwd(); + $working_copy = ArcanistWorkingCopyIdentity::newFromPath($cwd); + $configuration_manager->setWorkingCopyIdentity($working_copy); + + $configuration_manager->applyRuntimeArcConfig($args); + + return $configuration_manager; + } + + private function loadLibraries( + PhutilArgumentParser $args, + ArcanistConfigurationManager $config) { + + $is_trace = $args->getArg('trace'); + + if ($is_trace) { + $libraries = array( + 'phutil', + 'arcanist', + ); + + foreach ($libraries as $library_name) { + $this->logTrace( + pht('LOAD'), + pht( + 'Loaded "%s" from "%s".', + $library_name, + phutil_get_library_root($library_name))); + } + } + + $load = array(); + $working_copy = $config->getWorkingCopyIdentity(); + + $cli_libraries = $args->getArg('library'); + if ($cli_libraries) { + $load[] = array( + '--library', + $cli_libraries, + ); + } else { + $system_config = $config->readSystemArcConfig(); + $load[] = array( + $config->getSystemArcConfigLocation(), + idx($system_config, 'load', array()), + ); + + $global_config = $config->readUserArcConfig(); + $load[] = array( + $config->getUserConfigurationFileLocation(), + idx($global_config, 'load', array()), + ); + + $load[] = array( + '.arcconfig', + $working_copy->getProjectConfig('load'), + ); + + $load[] = array( + // TODO: We could explain exactly where this is coming from more + // clearly. + './.../arc/config', + $working_copy->getLocalConfig('load'), + ); + + $load[] = array( + '--config load=...', + $config->getRuntimeConfig('load', array()), + ); + } + + foreach ($load as $spec) { + list($source, $libraries) = $spec; + if ($is_trace) { + $this->logTrace( + pht('LOAD'), + pht( + 'Loading libraries from "%s"...', + $source)); + } + + if (!$libraries) { + if ($is_trace) { + $this->logTrace(pht('NONE'), pht('Nothing to load.')); + } + continue; + } + + if (!is_array($libraries)) { + throw new PhutilArgumentUsageException( + pht( + 'Libraries specified by "%s" are not formatted correctly. '. + 'Expected a list of paths. Check your configuration.', + $source)); + } + + foreach ($libraries as $library) { + $this->loadLibrary($source, $library, $working_copy, $is_trace); + } + } + } + + private function loadLibrary( + $source, + $location, + ArcanistWorkingCopyIdentity $working_copy, + $is_trace) { + + // Try to resolve the library location. We look in several places, in + // order: + // + // 1. Inside the working copy. This is for phutil libraries within the + // project. For instance "library/src" will resolve to + // "./library/src" if it exists. + // 2. In the same directory as the working copy. This allows you to + // check out a library alongside a working copy and reference it. + // If we haven't resolved yet, "library/src" will try to resolve to + // "../library/src" if it exists. + // 3. Using normal libphutil resolution rules. Generally, this means + // that it checks for libraries next to libphutil, then libraries + // in the PHP include_path. + // + // Note that absolute paths will just resolve absolutely through rule (1). + + $resolved = false; + + // Check inside the working copy. This also checks absolute paths, since + // they'll resolve absolute and just ignore the project root. + $resolved_location = Filesystem::resolvePath( + $location, + $working_copy->getProjectRoot()); + if (Filesystem::pathExists($resolved_location)) { + $location = $resolved_location; + $resolved = true; + } + + // If we didn't find anything, check alongside the working copy. + if (!$resolved) { + $resolved_location = Filesystem::resolvePath( + $location, + dirname($working_copy->getProjectRoot())); + if (Filesystem::pathExists($resolved_location)) { + $location = $resolved_location; + $resolved = true; + } + } + + if ($is_trace) { + $this->logTrace( + pht('LOAD'), + pht('Loading phutil library from "%s"...', $location)); + } + + $error = null; + try { + phutil_load_library($location); + } catch (PhutilBootloaderException $ex) { + fwrite( + STDERR, + "%s", + tsprintf( + "** %s ** %s\n", + pht( + 'Failed to load phutil library at location "%s". This library '. + 'is specified by "%s". Check that the setting is correct and '. + 'the library is located in the right place.', + $location, + $source))); + + $prompt = pht('Continue without loading library?'); + if (!phutil_console_confirm($prompt)) { + throw $ex; + } + } catch (PhutilLibraryConflictException $ex) { + if ($ex->getLibrary() != 'arcanist') { + throw $ex; + } + + // NOTE: If you are running `arc` against itself, we ignore the library + // conflict created by loading the local `arc` library (in the current + // working directory) and continue without loading it. + + // This means we only execute code in the `arcanist/` directory which is + // associated with the binary you are running, whereas we would normally + // execute local code. + + // This can make `arc` development slightly confusing if your setup is + // especially bizarre, but it allows `arc` to be used in automation + // workflows more easily. For some context, see PHI13. + + $executing_directory = dirname(dirname(__FILE__)); + $working_directory = dirname($location); + + fwrite( + STDERR, + tsprintf( + "** %s ** %s\n", + pht('VERY META'), + pht( + 'You are running one copy of Arcanist (at path "%s") against '. + 'another copy of Arcanist (at path "%s"). Code in the current '. + 'working directory will not be loaded or executed.', + $executing_directory, + $working_directory))); + } + } + + private function newToolset(array $argv) { + $binary = basename($argv[0]); + + $toolsets = ArcanistToolset::newToolsetMap(); + if (!isset($toolsets[$binary])) { + throw new PhutilArgumentUsageException( + pht( + 'Arcanist toolset "%s" is unknown. The Arcanist binary should '. + 'be executed so that "argv[0]" identifies a supported toolset. '. + 'Rename the binary or install the library that provides the '. + 'desired toolset. Current available toolsets: %s.', + $binary, + implode(', ', array_keys($toolsets)))); + } + + return $toolsets[$binary]; + } + + private function newWorkflows(ArcanistToolset $toolset) { + $workflows = id(new PhutilClassMapQuery()) + ->setAncestorClass('ArcanistWorkflow') + ->execute(); + + foreach ($workflows as $key => $workflow) { + if (!$workflow->supportsToolset($toolset)) { + unset($workflows[$key]); + } + } + + $map = array(); + foreach ($workflows as $workflow) { + $key = $workflow->getWorkflowName(); + if (isset($map[$key])) { + throw new Exception( + pht( + 'Two workflows ("%s" and "%s") both have the same name ("%s") '. + 'and both support the current toolset ("%s", "%s"). Each '. + 'workflow in a given toolset must have a unique name.', + get_class($workflow), + get_class($map[$key]), + get_class($toolset), + $toolset->getToolsetKey())); + } + $map[$key] = id(clone $workflow) + ->setToolset($toolset); + } + + return $map; + } + + private function resolveAliases( + array $workflows, + array $argv, + ArcanistConfigurationManager $config) { + + $command = head($argv); + + // If this is a match for a recognized workflow, just return the arguments + // unmodified. You aren't allowed to alias over real workflows. + if (isset($workflows[$command])) { + return $argv; + } + + $aliases = ArcanistAliasWorkflow::getAliases($config); + list($new_command, $new_args) = ArcanistAliasWorkflow::resolveAliases( + $command, + $this, + array_slice($argv, 1), + $config); + + // You can't alias something to itself, so if the new command isn't new, + // we're all done resolving aliases. + if ($new_command === $command) { + return $argv; + } + + $full_alias = idx($aliases, $command, array()); + $full_alias = implode(' ', $full_alias); + + // Run shell command aliases. + if (ArcanistAliasWorkflow::isShellCommandAlias($new_command)) { + fwrite( + STDERR, + tsprintf( + '** %s ** arc %s -> $ %s', + pht('ALIAS'), + $command, + $shell_cmd)); + + $shell_cmd = substr($full_alias, 1); + + return phutil_passthru('%C %Ls', $shell_cmd, $args); + } + + fwrite( + STDERR, + tsprintf( + '** %s ** arc %s -> arc %s', + pht('ALIAS'), + $command, + $new_command)); + + $new_argv = array_merge(array($new_command), $new_args); + + return $this->resolveAliases($workflows, $new_argv, $config); + } + + private function logTrace($label, $message) { + echo tsprintf( + "** %s ** %s\n", + $label, + $message); + } + +}