Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
Complex classes like DotEnvStorage often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use DotEnvStorage, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 21 | class DotEnvStorage extends \Dotenv\Loader implements Storage |
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| 22 | { |
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| 23 | use \Teto\Object\ReadOnly; |
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| 24 | |||
| 25 | /** @var string|resource */ |
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| 26 | private $file_path; |
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| 27 | |||
| 28 | /** @var array */ |
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| 29 | private $key_names = [ |
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| 30 | 'app_name' => 'APP_NAME', |
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| 31 | 'client_id' => 'CLIENT_ID', |
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| 32 | 'client_secret' => 'CLIENT_SECRET', |
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| 33 | 'username' => 'USERNAME', |
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| 34 | 'password' => 'PASSWORD', |
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| 35 | 'access_token' => 'ACCESS_TOKEN', |
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| 36 | 'scope' => 'SCOPE', |
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| 37 | 'created_at' => 'CREATED_AT', |
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| 38 | ]; |
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| 39 | |||
| 40 | /** @var bool */ |
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| 41 | private $read_only = true; |
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| 42 | |||
| 43 | /** @var array */ |
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| 44 | private $save_values = []; |
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| 45 | |||
| 46 | /** |
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| 47 | * @param string $file_path |
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| 48 | * @param array $options |
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| 49 | * @throws \Dotenv\Exception\InvalidPathException |
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| 50 | */ |
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| 51 | 13 | public function __construct($file_path, $options = []) |
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| 69 | |||
| 70 | /** |
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| 71 | * @return array |
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| 72 | */ |
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| 73 | 5 | public function getAppName() |
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| 83 | |||
| 84 | /** |
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| 85 | * @param string $app_name |
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| 86 | * @return void |
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| 87 | */ |
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| 88 | 7 | public function setAppName($app_name) |
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| 93 | |||
| 94 | /** |
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| 95 | * @return array |
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| 96 | */ |
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| 97 | public function getAuthorization() |
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| 111 | |||
| 112 | /** |
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| 113 | * @param string $access_token |
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| 114 | * @param string|string[]|Scope $scope |
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| 115 | * @param int $created_at |
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| 116 | * @return void |
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| 117 | */ |
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| 118 | public function setAuthorization($access_token, $scope = null, $created_at = null) |
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| 126 | |||
| 127 | /** |
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| 128 | * @param Authorization $authorization |
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| 129 | * @return void |
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| 130 | */ |
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| 131 | public function setAuthorizationFromObject(Authorization $authorization) |
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| 132 | { |
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| 133 | $this->setAuthorization( |
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| 134 | $authorization->access_token, |
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| 135 | $authorization->scope, |
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| 136 | $authorization->created_at ? $authorization->created_at->getTimestamp() : time() |
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| 137 | ); |
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| 138 | } |
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| 139 | |||
| 140 | /** |
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| 141 | * @Return array |
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| 142 | */ |
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| 143 | 5 | View Code Duplication | public function getClientIdAndSecret() |
| 155 | |||
| 156 | /** |
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| 157 | * @param string $client_id |
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| 158 | * @param string $client_secret |
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| 159 | */ |
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| 160 | 3 | View Code Duplication | public function setClientIdAndSecret($client_id, $client_secret) |
| 167 | |||
| 168 | /** |
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| 169 | * @return array |
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| 170 | */ |
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| 171 | 5 | View Code Duplication | public function getUsernameAndPassword() |
| 182 | |||
| 183 | /** |
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| 184 | * @param string $username |
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| 185 | * @param string $password |
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| 186 | */ |
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| 187 | 1 | View Code Duplication | public function setUsernameAndPassword($username, $password) |
| 194 | |||
| 195 | /** |
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| 196 | * Returns all stored key-value pairs |
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| 197 | * |
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| 198 | * @return array |
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| 199 | */ |
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| 200 | 5 | public function getValues() |
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| 213 | |||
| 214 | /** |
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| 215 | * @param resource $fp |
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| 216 | * @return string[] |
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| 217 | */ |
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| 218 | 13 | public function getLines($fp = null) |
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| 230 | |||
| 231 | /** |
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| 232 | * @return void |
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| 233 | */ |
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| 234 | 8 | public function save() |
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| 288 | |||
| 289 | /** |
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| 290 | * @param string $value |
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| 291 | */ |
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| 292 | 7 | public static function quoteValue($value) |
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| 298 | } |
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| 299 |
Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property.
Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..