<?php
/**
* MIT License
* For full license information, please view the LICENSE file that was distributed with this source code.
*/
namespace Phinx\Util;
use DateTime;
use DateTimeZone;
use Exception;
class Util
{
/**
* @var string
*/
public const DATE_FORMAT = 'YmdHis';
/**
* @var string
*/
protected const MIGRATION_FILE_NAME_PATTERN = '/^\d+_([a-z][a-z\d]*(?:_[a-z\d]+)*)\.php$/i';
/**
* @var string
*/
protected const MIGRATION_FILE_NAME_NO_NAME_PATTERN = '/^[0-9]{14}\.php$/';
/**
* @var string
*/
protected const SEED_FILE_NAME_PATTERN = '/^([a-z][a-z\d]*)\.php$/i';
/**
* @var string
*/
protected const CLASS_NAME_PATTERN = '/^(?:[A-Z][a-z\d]*)+$/';
/**
* Gets the current timestamp string, in UTC.
*
* @return string
*/
public static function getCurrentTimestamp()
{
$dt = new DateTime('now', new DateTimeZone('UTC'));
return $dt->format(static::DATE_FORMAT);
}
/**
* Gets an array of all the existing migration class names.
*
* @param string $path Path
*
* @return string[]
*/
public static function getExistingMigrationClassNames($path)
{
$classNames = [];
if (!is_dir($path)) {
return $classNames;
}
// filter the files to only get the ones that match our naming scheme
$phpFiles = static::getFiles($path);
foreach ($phpFiles as $filePath) {
$fileName = basename($filePath);
if (preg_match(static::MIGRATION_FILE_NAME_PATTERN, $fileName)) {
$classNames[] = static::mapFileNameToClassName($fileName);
}
}
return $classNames;
}
/**
* Get the version from the beginning of a file name.
*
* @param string $fileName File Name
*
* @return string
*/
public static function getVersionFromFileName($fileName)
{
$matches = [];
preg_match('/^[0-9]+/', basename($fileName), $matches);
return $matches[0];
}
/**
* Turn migration names like 'CreateUserTable' into file names like
* '12345678901234_create_user_table.php' or 'LimitResourceNamesTo30Chars' into
* '12345678901234_limit_resource_names_to_30_chars.php'.
*
* @param string $className Class Name
*
* @return string
*/
public static function mapClassNameToFileName($className)
{
$snake = function ($matches) {
return '_' . strtolower($matches[0]);
};
$fileName = preg_replace_callback('/\d+|[A-Z]/', $snake, $className);
$fileName = static::getCurrentTimestamp() . "$fileName.php";
return $fileName;
}
/**
* Turn file names like '12345678901234_create_user_table.php' into class
* names like 'CreateUserTable'.
*
* @param string $fileName File Name
*
* @return string
*/
public static function mapFileNameToClassName(string $fileName): string
{
$matches = [];
if (preg_match(static::MIGRATION_FILE_NAME_PATTERN, $fileName, $matches)) {
$fileName = $matches[1];
} elseif (preg_match(static::MIGRATION_FILE_NAME_NO_NAME_PATTERN, $fileName)) {
return "V" . substr($fileName, 0, strlen($fileName) - 4);
}
$className = str_replace('_', '', ucwords($fileName, '_'));
return $className;
}
/**
* Check if a migration class name is unique regardless of the
* timestamp.
*
* This method takes a class name and a path to a migrations directory.
*
* Migration class names must be in PascalCase format but consecutive
* capitals are allowed.
* e.g: AddIndexToPostsTable or CustomHTMLTitle.
*
* @param string $className Class Name
* @param string $path Path
*
* @return bool
*/
public static function isUniqueMigrationClassName($className, $path)
{
$existingClassNames = static::getExistingMigrationClassNames($path);
return !in_array($className, $existingClassNames, true);
}
/**
* Check if a migration/seed class name is valid.
*
* Migration & Seed class names must be in CamelCase format.
* e.g: CreateUserTable, AddIndexToPostsTable or UserSeeder.
*
* Single words are not allowed on their own.
*
* @param string $className Class Name
*
* @return bool
*/
public static function isValidPhinxClassName($className)
{
return (bool)preg_match(static::CLASS_NAME_PATTERN, $className);
}
/**
* Check if a migration file name is valid.
*
* @param string $fileName File Name
*
* @return bool
*/
public static function isValidMigrationFileName(string $fileName): bool
{
return (
(bool)preg_match(static::MIGRATION_FILE_NAME_PATTERN, $fileName)
|| (bool)preg_match(static::MIGRATION_FILE_NAME_NO_NAME_PATTERN, $fileName)
);
}
/**
* Check if a seed file name is valid.
*
* @param string $fileName File Name
*
* @return bool
*/
public static function isValidSeedFileName($fileName)
{
return (bool)preg_match(static::SEED_FILE_NAME_PATTERN, $fileName);
}
/**
* Expands a set of paths with curly braces (if supported by the OS).
*
* @param string[] $paths Paths
*
* @return string[]
*/
public static function globAll(array $paths)
{
$result = [];
foreach ($paths as $path) {
$result = array_merge($result, static::glob($path));
}
return $result;
}
/**
* Expands a path with curly braces (if supported by the OS).
*
* @param string $path Path
*
* @return string[]
*/
public static function glob($path)
{
return glob($path, defined('GLOB_BRACE') ? GLOB_BRACE : 0);
}
/**
* Takes the path to a php file and attempts to include it if readable
*
* @param string $filename Filename
*
* @throws \Exception
*
* @return string
*/
public static function loadPhpFile($filename)
{
$filePath = realpath($filename);
if (!file_exists($filePath)) {
throw new Exception(sprintf("File does not exist: %s \n", $filename));
}
/**
* I lifed this from phpunits FileLoader class
*
* @see https://github.com/sebastianbergmann/phpunit/pull/2751
*/
$isReadable = @fopen($filePath, 'r') !== false;
if (!$isReadable) {
throw new Exception(sprintf("Cannot open file %s \n", $filename));
}
include_once $filePath;
return $filePath;
}
/**
* Given an array of paths, return all unique PHP files that are in them
*
* @param string|string[] $paths Path or array of paths to get .php files.
*
* @return string[]
*/
public static function getFiles($paths)
{
$files = static::globAll(array_map(function ($path) {
return $path . DIRECTORY_SEPARATOR . "*.php";
}, (array)$paths));
// glob() can return the same file multiple times
// This will cause the migration to fail with a
// false assumption of duplicate migrations
// http://php.net/manual/en/function.glob.php#110340
$files = array_unique($files);
return $files;
}
/**
* Attempt to remove the current working directory from a path for output.
*
* @param string $path Path to remove cwd prefix from
* @return string
*/
public static function relativePath($path)
{
$realpath = realpath($path);
if ($realpath !== false) {
$path = $realpath;
}
$cwd = getcwd();
if ($cwd !== false) {
$cwd .= DIRECTORY_SEPARATOR;
$cwdLen = strlen($cwd);
if (substr($path, 0, $cwdLen) === $cwd) {
$path = substr($path, $cwdLen);
}
}
return $path;
}
/**
* Parses DSN string into db config array.
*
* @param string $dsn DSN string
* @return array
*/
public static function parseDsn(string $dsn): array
{
$pattern = <<<'REGEXP'
{
^
(?:
(?P<adapter>[\w\\\\]+)://
)
(?:
(?P<user>.*?)
(?:
:(?P<pass>.*?)
)?
@
)?
(?:
(?P<host>[^?#/:@]+)
(?:
:(?P<port>\d+)
)?
)?
(?:
/(?P<name>[^?#]*)
)?
(?:
\?(?P<query>[^#]*)
)?
$
}x
REGEXP;
if (!preg_match($pattern, $dsn, $parsed)) {
return [];
}
// filter out everything except the matched groups
$config = array_intersect_key($parsed, array_flip(['adapter', 'user', 'pass', 'host', 'port', 'name']));
$config = array_filter($config);
parse_str($parsed['query'] ?? '', $query);
$config = array_merge($query, $config);
return $config;
}
}