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PhabricatorStorageManagementAPI.php
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Wed, Aug 7, 09:24

PhabricatorStorageManagementAPI.php
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<?php
/*
* Copyright 2012 Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
final class PhabricatorStorageManagementAPI {
private $host;
private $user;
private $password;
private $namespace;
public function setNamespace($namespace) {
$this->namespace = $namespace;
PhabricatorLiskDAO::pushStorageNamespace($namespace);
return $this;
}
public function getNamespace() {
return $this->namespace;
}
public function setUser($user) {
$this->user = $user;
return $this;
}
public function getUser() {
return $this->user;
}
public function setPassword($password) {
$this->password = $password;
return $this;
}
public function getPassword() {
return $this->password;
}
public function setHost($host) {
$this->host = $host;
return $this;
}
public function getHost() {
return $this->host;
}
public function getDatabaseName($fragment) {
return $this->namespace.'_'.$fragment;
}
public function getDatabaseList(array $patches) {
assert_instances_of($patches, 'PhabricatorStoragePatch');
$list = array();
foreach ($patches as $patch) {
if ($patch->getType() == 'db') {
$list[] = $this->getDatabaseName($patch->getName());
}
}
return $list;
}
public function getConn($fragment, $select_database = true) {
return PhabricatorEnv::newObjectFromConfig(
'mysql.implementation',
array(
array(
'user' => $this->user,
'pass' => $this->password,
'host' => $this->host,
'database' => $select_database
? $this->getDatabaseName($fragment)
: null,
),
));
}
public function getAppliedPatches() {
try {
$applied = queryfx_all(
$this->getConn('meta_data'),
'SELECT patch FROM patch_status');
return ipull($applied, 'patch');
} catch (AphrontQueryException $ex) {
return null;
}
}
public function createDatabase($fragment) {
queryfx(
$this->getConn($fragment, $select_database = false),
'CREATE DATABASE IF NOT EXISTS %T COLLATE utf8_general_ci',
$this->getDatabaseName($fragment));
}
public function createTable($fragment, $table, array $cols) {
queryfx(
$this->getConn($fragment),
'CREATE TABLE IF NOT EXISTS %T.%T (%Q) '.
'ENGINE=InnoDB, COLLATE utf8_general_ci',
$this->getDatabaseName($fragment),
$table,
implode(', ', $cols));
}
public function getLegacyPatches(array $patches) {
assert_instances_of($patches, 'PhabricatorStoragePatch');
try {
$row = queryfx_one(
$this->getConn('meta_data'),
'SELECT version FROM %T',
'schema_version');
$version = $row['version'];
} catch (AphrontQueryException $ex) {
return array();
}
$legacy = array();
foreach ($patches as $key => $patch) {
if ($patch->getLegacy() !== false && $patch->getLegacy() <= $version) {
$legacy[] = $key;
}
}
return $legacy;
}
public function markPatchApplied($patch) {
queryfx(
$this->getConn('meta_data'),
'INSERT INTO %T (patch, applied) VALUES (%s, %d)',
'patch_status',
$patch,
time());
}
public function applyPatch(PhabricatorStoragePatch $patch) {
$type = $patch->getType();
$name = $patch->getName();
switch ($type) {
case 'db':
$this->createDatabase($name);
break;
case 'sql':
$this->applyPatchSQL($name);
break;
case 'php':
$this->applyPatchPHP($name);
break;
default:
throw new Exception("Unable to apply patch of type '{$type}'.");
}
}
public function applyPatchSQL($sql) {
$sql = Filesystem::readFile($sql);
$queries = preg_split('/;\s+/', $sql);
$queries = array_filter($queries);
$conn = $this->getConn('meta_data', $select_database = false);
foreach ($queries as $query) {
$query = str_replace('{$NAMESPACE}', $this->namespace, $query);
queryfx(
$conn,
'%Q',
$query);
}
}
public function applyPatchPHP($script) {
$schema_conn = $this->getConn('meta_data', $select_database = false);
require_once $script;
}
}

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