PhabricatorConfigManagementDeleteWorkflow.php
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	<?php

	final class PhabricatorConfigManagementDeleteWorkflow
	extends PhabricatorConfigManagementWorkflow {

	protected function didConstruct() {
	$this
	->setName('delete')
	->setExamples('delete __key__')
	->setSynopsis(pht('Delete a local configuration value.'))
	->setArguments(
	array(
	array(
	'name' => 'database',
	'help' => pht(
	'Delete configuration in the database instead of '.
	'in local configuration.'),
	),
	array(
	'name' => 'args',
	'wildcard' => true,
	),
	));
	}

	public function execute(PhutilArgumentParser $args) {
	$console = PhutilConsole::getConsole();

	$argv = $args->getArg('args');
	if (count($argv) == 0) {
	throw new PhutilArgumentUsageException(
	pht('Specify a configuration key to delete.'));
	}

	$key = $argv[0];

	if (count($argv) > 1) {
	throw new PhutilArgumentUsageException(
	pht('Too many arguments: expected one key.'));
	}


	$use_database = $args->getArg('database');
	if ($use_database) {
	$config = new PhabricatorConfigDatabaseSource('default');
	$config_type = 'database';
	} else {
	$config = new PhabricatorConfigLocalSource();
	$config_type = 'local';
	}
	$values = $config->getKeys(array($key));
	if (!$values) {
	throw new PhutilArgumentUsageException(
	pht(
	"Configuration key '%s' is not set in %s configuration!",
	$key,
	$config_type));
	}

	if ($use_database) {
	$config_entry = PhabricatorConfigEntry::loadConfigEntry($key);
	$config_entry->setIsDeleted(1);
	$config_entry->save();
	} else {
	$config->deleteKeys(array($key));
	}

	$console->writeOut(
	"%s\n",
	pht("Deleted '%s' from %s configuration.", $key, $config_type));
	}

	}