php-smelly-code-detector

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php-smelly-code-detector

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Detects code smells by assessing complexity to identify potentially problematic code

php-smelly-code-detector 최신버젼 다운로드

최종 버전 다운로드 (.zip)

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# php-smelly-code-detector

> "A code smell is a surface indication that usually corresponds to a deeper problem in the system."
> ~ Martin Fowler

Code smell is a potentially problematic code indicator with the following formula : `($ccn + $arg) * $loc`

- ccn : [cyclomatic complexity](https://en.wikipedia.org/wiki/Cyclomatic_complexity) of the method
- arg : number of method arguments
- loc : number of lines in the method

A high smell value will often reveal that the method is too complex.

This complexity could be detrimental to the maintainability of the method, favoring the appearance of bugs in the future.

This indicator does not replace the expertise of a developer and must above all be considered as an alarm detecting "smelly" code.

# Installation

```
Requires >= PHP 8.1
```

## Phar
This tool is distributed as a [PHP Archive (PHAR)](https://www.php.net/phar):

```
wget https://github.com/DeGraciaMathieu/php-smelly-code-detector/raw/master/builds/smelly-code-detector
```

```
php smelly-code-detector --version
```

## Composer
Alternately, you can directly use composer :

```
composer require degraciamathieu/php-smelly-code-detector --dev
```

# Analyze methods
```
php smelly-code-detector inspect-method {path}
```
## Options
| options               | description |
|-----------------------|-------------|
| --min-smell= | The minimum smell threshold to show.|
| --max-smell= | The maximum smell threshold to show.|
| --only= | Comma-separated list of smells to show.|
| --ignore= | Comma-separated list of smells to ignore.|
| --limit= | The maximum number of results to show, default 20.|
| --public | Show only public methods.|
| --private | Show only private methods.|
| --protected | Show only protected methods.|
| --without-constructor | Hide constructors.|
| --sort-by=smell | Sort order (smell, loc, arg, ccl), default smell.|
| --json | Render metrics in JSON|

## Examples
20 lines are displayed by default, you can configure this with the `--limit=` option.
```
$ php smelly-code-detector inspect-method app --limit=5
❀ PHP Smelly Code Detector ❀
   84 [============================]
+-----------------------------------------------------+--------+------------+-----+-----+-----+-------+
| file                                                | method | visibility | loc | arg | ccn | Smell |
+-----------------------------------------------------+--------+------------+-----+-----+-----+-------+
| app/Http/Controllers/Blog/AdminPostController.php   | update | Public     | 25  | 2   | 3   | 125   |
| app/Http/Controllers/Auth/NewPasswordController.php | store  | Public     | 29  | 1   | 2   | 87    |
| app/Http/Controllers/Blog/AdminPostController.php   | store  | Public     | 26  | 1   | 2   | 78    |
| app/Console/Commands/FetchGoogleFonts.php           | store  | Private    | 26  | 1   | 2   | 78    |
| app/Http/Middleware/RedirectIfAuthenticated.php     | handle | Public     | 11  | 3   | 4   | 77    |
+-----------------------------------------------------+--------+------------+-----+-----+-----+-------+
5/183 methods displayed
```
You can select scanned files with `--only=` and `--ignore=` options.
```
$ php smelly-code-detector inspect-method app --only=Controller.php --limit=10
❀ PHP Smelly Code Detector ❀
   24 [============================]
+-----------------------------------------------------------+--------------------+------------+-----+-----+-----+-------+
| file                                                      | method             | visibility | loc | arg | ccn | Smell |
+-----------------------------------------------------------+--------------------+------------+-----+-----+-----+-------+
| app/Http/Controllers/Blog/AdminPostController.php         | update             | Public     | 25  | 2   | 3   | 125   |
| app/Http/Controllers/Auth/NewPasswordController.php       | store              | Public     | 29  | 1   | 2   | 87    |
| app/Http/Controllers/Blog/AdminPostController.php         | store              | Public     | 26  | 1   | 2   | 78    |
| app/Http/Controllers/User/ProfileController.php           | updateAvatar       | Public     | 21  | 1   | 2   | 63    |
| app/Http/Controllers/Blog/GalleryController.php           | uploadPicture      | Public     | 21  | 1   | 2   | 63    |
| app/Http/Controllers/Auth/PasswordResetLinkController.php | store              | Public     | 17  | 1   | 2   | 51    |
| app/Http/Controllers/User/ProfileController.php           | updateInformations | Public     | 17  | 1   | 2   | 51    |
| app/Http/Controllers/Auth/RegisteredUserController.php    | store              | Public     | 25  | 1   | 1   | 50    |
| app/Http/Controllers/Blog/ShowPostController.php          | __invoke           | Public     | 12  | 2   | 2   | 48    |
| app/Http/Controllers/Forum/CommentController.php          | store              | Public     | 16  | 2   | 1   | 48    |
+-----------------------------------------------------------+--------------------+------------+-----+-----+-----+-------+
10/50 methods displayed
```
You can select the visibilities to keep with the `--public`, `--protected` and `--private` options.
```
$ php smelly-code-detector inspect-method app --private
❀ PHP Smelly Code Detector ❀
   84 [============================]
+--------------------------------------------------+---------------------------------+------------+-----+-----+-----+-------+
| file                                             | method                          | visibility | loc | arg | ccn | Smell |
+--------------------------------------------------+---------------------------------+------------+-----+-----+-----+-------+
| app/Console/Commands/FetchGoogleFonts.php        | store                           | Private    | 26  | 1   | 2   | 78    |
| app/Services/Community/CreatorRepository.php     | instantiateCreatorsFromResponse | Private    | 24  | 1   | 2   | 72    |
| app/Notifications/VerifyEmail.php                | verificationUrl                 | Private    | 10  | 1   | 1   | 20    |
| app/Http/Controllers/Blog/ShowPostController.php | postAreNotDisplayable           | Private    | 3   | 2   | 2   | 12    |
+--------------------------------------------------+---------------------------------+------------+-----+-----+-----+-------+
4/4 methods displayed
```
By default, rows will be sorted by the smell value, you can change the sort order with `--sort-by=` option, the following values are available : loc, arg, ccl, smell. 
```
$ php smelly-code-detector inspect-method app --sort-by=ccl --limit=3
❀ PHP Smelly Code Detector ❀
   84 [============================]
+---------------------------------------------------+-----------------------+------------+-----+-----+-----+-------+
| file                                              | method                | visibility | loc | arg | ccn | Smell |
+---------------------------------------------------+-----------------------+------------+-----+-----+-----+-------+
| app/Http/Middleware/RedirectIfAuthenticated.php   | handle                | Public     | 11  | 3   | 4   | 77    |
| app/Http/Controllers/Blog/AdminPostController.php | update                | Public     | 25  | 2   | 3   | 125   |
| app/Providers/RouteServiceProvider.php            | configureRateLimiting | Protected  | 5   | 0   | 2   | 10    |
+---------------------------------------------------+-----------------------+------------+-----+-----+-----+-------+
3/183 methods displayed
```

# Analyze class
This command gives the total smell of a class, as well as an average by method and a breakdown by visibility.
```
php smelly-code-detector inspect-class {path}
```
## Options
| options               | description |
|-----------------------|-------------|
| --only= | Comma-separated list of smells to show.|
| --ignore= | Comma-separated list of smells to ignore.|
| --limit= | The maximum number of results to show, default 20.|
| --public | Show only public methods.|
| --private | Show only private methods.|
| --protected | Show only protected methods.|
| --without-constructor | Hide constructors.|
| --sort-by=smell | Sort order (count, smell, avg), default smell.|
| --json | Render metrics in JSON|

## Examples

```
$ php smelly-code-detector inspect-class app
❀ PHP Smelly Code Detector ❀
+-----------------------------------------------------+-------+-------+-----+--------+-------+-------+
| class                                               | count | smell | avg | public | prot. | priv. |
+-----------------------------------------------------+-------+-------+-----+--------+-------+-------+
| app/Http/Controllers/Blog/AdminPostController.php   | 8     | 244   | 30  | 100 %  | 0 %   | 0 %   |
| app/Http/Controllers/User/ProfileController.php     | 5     | 150   | 30  | 100 %  | 0 %   | 0 %   |
| app/Services/Community/CreatorRepository.php        | 3     | 118   | 39  | 38 %   | 61 %  | 0 %   |
| app/Console/Commands/FetchGoogleFonts.php           | 4     | 117   | 29  | 9 %    | 66 %  | 23 %  |
| app/Http/Controllers/Forum/CommentController.php    | 4     | 116   | 29  | 100 %  | 0 %   | 0 %   |
| app/Http/Controllers/Auth/NewPasswordController.php | 2     | 93    | 46  | 100 %  | 0 %   | 0 %   |
| app/Http/Controllers/Forum/TopicController.php      | 7     | 81    | 11  | 100 %  | 0 %   | 0 %   |
| app/Policies/UserPolicy.php                         | 8     | 77    | 9   | 100 %  | 0 %   | 0 %   |
| app/Policies/TopicPolicy.php                        | 8     | 77    | 9   | 100 %  | 0 %   | 0 %   |
| app/Policies/CommentPolicy.php                      | 8     | 77    | 9   | 100 %  | 0 %   | 0 %   |
| app/Policies/SubscriberPolicy.php                   | 8     | 77    | 9   | 100 %  | 0 %   | 0 %   |
| app/Policies/PostPolicy.php                         | 8     | 77    | 9   | 100 %  | 0 %   | 0 %   |
| app/Http/Middleware/RedirectIfAuthenticated.php     | 1     | 77    | 77  | 100 %  | 0 %   | 0 %   |
| app/Http/Controllers/Blog/GalleryController.php     | 3     | 76    | 25  | 100 %  | 0 %   | 0 %   |
| app/Services/Markdown/MarkdownProvider.php          | 1     | 75    | 75  | 100 %  | 0 %   | 0 %   |
| app/Http/Controllers/Blog/ShowPostController.php    | 3     | 74    | 24  | 64 %   | 16 %  | 18 %  |
| app/Http/Requests/LoginRequest.php                  | 5     | 70    | 14  | 100 %  | 0 %   | 0 %   |
| app/Models/Post.php                                 | 6     | 68    | 11  | 58 %   | 0 %   | 41 %  |
| app/Notifications/VerifyEmail.php                   | 5     | 61    | 12  | 67 %   | 32 %  | 0 %   |
| app/Channels/DiscordWebhookChannel.php              | 3     | 61    | 20  | 31 %   | 0 %   | 68 %  |
+-----------------------------------------------------+-------+-------+-----+--------+-------+-------+
20/84 class displayed
```

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