Completed
Push — master ( 11e20f...327a47 )
by Jack
01:57
created

UpdateModules::checkDirExcludedWords()   C

Complexity

Conditions 8
Paths 8

Size

Total Lines 28
Code Lines 16

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
dl 0
loc 28
rs 5.3846
c 0
b 0
f 0
cc 8
eloc 16
nc 8
nop 2
1
<?php
2
3
/**
4
 * main class running all the updates
5
 *
6
 *
7
 */
8
class UpdateModules extends BuildTask
0 ignored issues
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Coding Style Compatibility introduced by
PSR1 recommends that each class must be in a namespace of at least one level to avoid collisions.

You can fix this by adding a namespace to your class:

namespace YourVendor;

class YourClass { }

When choosing a vendor namespace, try to pick something that is not too generic to avoid conflicts with other libraries.

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9
{
10
    protected $enabled = true;
11
12
    protected $title = "Update Modules";
13
14
    protected $description = "Adds files necessary for publishing a module to GitHub. The list of modules is specified in standard config or else it retrieves a list of modules from GitHub.";
15
16
    /**
17
     * e.g.
18
     * - moduleA
19
     * - moduleB
20
     * - moduleC
21
     *
22
     *
23
     * @var array
24
     */
25
    private static $modules_to_update = array();
0 ignored issues
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Unused Code introduced by
The property $modules_to_update is not used and could be removed.

This check marks private properties in classes that are never used. Those properties can be removed.

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26
27
    /**
28
     * e.g.
29
     * - ClassNameForUpdatingFileA
30
     * - ClassNameForUpdatingFileB
31
     *
32
     * @var array
33
     */
34
    private static $files_to_update = array();
0 ignored issues
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Unused Code introduced by
The property $files_to_update is not used and could be removed.

This check marks private properties in classes that are never used. Those properties can be removed.

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35
    /**
36
     * e.g.
37
     * - ClassNameForUpdatingFileA
38
     * - ClassNameForUpdatingFileB
39
     *
40
     * @var array
41
     */
42
    private static $commands_to_run = array();
0 ignored issues
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Unused Code introduced by
The property $commands_to_run is not used and could be removed.

This check marks private properties in classes that are never used. Those properties can be removed.

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43
    
44
    public static $unsolvedItems = array();
45
46
    public function run($request) {
47
        increase_time_limit_to(3600);
48
49
        //Check temp module folder is empty
50
        $tempFolder = GitHubModule::Config()->get('absolute_temp_folder');
51
        $tempDirFiles = scandir($tempFolder);
52
        if (count($tempDirFiles) > 2) {
53
            die ( '<h2>' . $tempFolder . ' is not empty, please delete or move files </h2>');
0 ignored issues
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Coding Style Compatibility introduced by
The method run() contains an exit expression.

An exit expression should only be used in rare cases. For example, if you write a short command line script.

In most cases however, using an exit expression makes the code untestable and often causes incompatibilities with other libraries. Thus, unless you are absolutely sure it is required here, we recommend to refactor your code to avoid its usage.

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54
        }
55
56
        //Get list of all modules from GitHub
57
        $gitUserName = $this->Config()->get('git_user_name');
0 ignored issues
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Unused Code introduced by
$gitUserName is not used, you could remove the assignment.

This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.

$myVar = 'Value';
$higher = false;

if (rand(1, 6) > 3) {
    $higher = true;
} else {
    $higher = false;
}

Both the $myVar assignment in line 1 and the $higher assignment in line 2 are dead. The first because $myVar is never used and the second because $higher is always overwritten for every possible time line.

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58
		
59
		$modules = GitHubModule::getRepoList();
60
		
61
62
63
        $updateComposerJson = $this->Config()->get('update_composer_json');
64
        
65
66
		
67
        $limitedModules = $this->Config()->get('modules_to_update');
68
69
        if($limitedModules && count($limitedModules)) {
70
            $modules = array_intersect($modules, $limitedModules);
71
        }
72
73
74
75
        /*
76
         * Get files to add to modules
77
         * */
78
        $files = ClassInfo::subclassesFor('AddFileToModule');
79
80
        array_shift($files);
81
        $limitedFileClasses = $this->Config()->get('files_to_update');
82
        if($limitedFileClasses && count($limitedFileClasses)) {
83
            $files = array_intersect($files, $limitedFileClasses);
84
        }
85
86
        /*
87
         * Get commands to run on modules
88
         * */
89
90
        $commands = ClassInfo::subclassesFor('RunCommandLineMethodOnModule');
91
92
93
        array_shift($commands);
94
        $limitedCommands = $this->Config()->get('commands_to_run');
95
        if($limitedCommands && count($limitedCommands)) {
96
            $commands = array_intersect($commands, $limitedCommands);
97
        }
98
99
100
		set_error_handler ('errorHandler', E_ALL);
101
        foreach($modules as $count => $module) {
0 ignored issues
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Bug introduced by
The expression $modules of type null|array is not guaranteed to be traversable. How about adding an additional type check?

There are different options of fixing this problem.

  1. If you want to be on the safe side, you can add an additional type-check:

    $collection = json_decode($data, true);
    if ( ! is_array($collection)) {
        throw new \RuntimeException('$collection must be an array.');
    }
    
    foreach ($collection as $item) { /** ... */ }
    
  2. If you are sure that the expression is traversable, you might want to add a doc comment cast to improve IDE auto-completion and static analysis:

    /** @var array $collection */
    $collection = json_decode($data, true);
    
    foreach ($collection as $item) { /** .. */ }
    
  3. Mark the issue as a false-positive: Just hover the remove button, in the top-right corner of this issue for more options.

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102
			$this->currentModule = $module;
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Bug introduced by
The property currentModule does not exist. Did you maybe forget to declare it?

In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:

class MyClass { }

$x = new MyClass();
$x->foo = true;

Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion:

class MyClass {
    public $foo;
}

$x = new MyClass();
$x->foo = true;
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103
			try {
104
				
105
				$this->processOneModule($module, $count, $files, $commands, $updateComposerJson);
106
			}
107
			catch (Exception $e) {
108
				GeneralMethods::outputToScreen ("<li> Could not complete processing $module: " .  $e->getMessage() . " </li>");
109
			}
110
			
111
112
        }
113
 
114
		restore_error_handler();
115
        
116
        $this->writeLog();
117
        //to do ..
118
    }
119
    
120
    protected function errorHandler(int $errno , string $errstr) {
0 ignored issues
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Unused Code introduced by
The parameter $errno is not used and could be removed.

This check looks from parameters that have been defined for a function or method, but which are not used in the method body.

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121
122
		GeneralMethods::outputToScreen ("<li> Could not complete processing module: " .  $errstr . " </li>");
123
  
124
        UpdateModules::addUnsolvedProblem($this->currentModule, "Could not complete processing module: " . $errstr);
125
              
126
		return true;
127
	}
128
    
129
    protected function processOneModule($module, $count, $files, $commands, $updateComposerJson) {
130
		    
131
		    if ( stripos($module, 'silverstripe-')  === false ) {
132
                $module = "silverstripe-" . $module;
133
            }
134
            echo "<h2>" . ($count+1) . ". ".$module."</h2>";
135
136
137
            $moduleObject = GitHubModule::get_or_create_github_module($module);
138
139
            $this->checkUpdateTag($moduleObject);
140
141
            // Check if all necessary files are perfect on GitHub repo already,
142
            // if so we can skip that module. But! ... if there are commands to run
143
            // over the files in the repo, then we need to clone the repo anyhow,
144
            // so skip the check
145
            if (count($commands) == 0 && ! $updateComposerJson) {
146
                $moduleFilesOK = true;
147
148
                foreach($files as $file) {
149
                    $fileObj = $file::create($moduleObject);
150
                    $checkFileName = $fileObj->getFileLocation();
151
                    $GitHubFileText = $moduleObject -> getRawFileFromGithub($checkFileName);
152
                    if ($GitHubFileText) {
153
                        $fileCheck = $fileObj->compareWithText($GitHubFileText);
154
                        if ( ! $fileCheck) {
155
                            $moduleFilesOK = false;
156
                        }
157
                    }
158
                    else {
159
                        $moduleFilesOK = false;
160
                    }
161
                }
162
                
163
                
164
165
                if ($moduleFilesOK) {
166
                    GeneralMethods::outputToScreen ("<li> All files in $module OK, skipping to next module ... </li>");
167
                    continue;
168
                }
169
            }
170
171
            $repository = $moduleObject->checkOrSetGitCommsWrapper($forceNew = true);
0 ignored issues
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Unused Code introduced by
$repository is not used, you could remove the assignment.

This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.

$myVar = 'Value';
$higher = false;

if (rand(1, 6) > 3) {
    $higher = true;
} else {
    $higher = false;
}

Both the $myVar assignment in line 1 and the $higher assignment in line 2 are dead. The first because $myVar is never used and the second because $higher is always overwritten for every possible time line.

Loading history...
172
173
174
			$this->moveOldReadMe($moduleObject);
175
176
            // $this->checkConfigYML($moduleObject);
0 ignored issues
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Unused Code Comprehensibility introduced by
75% of this comment could be valid code. Did you maybe forget this after debugging?

Sometimes obsolete code just ends up commented out instead of removed. In this case it is better to remove the code once you have checked you do not need it.

The code might also have been commented out for debugging purposes. In this case it is vital that someone uncomments it again or your project may behave in very unexpected ways in production.

This check looks for comments that seem to be mostly valid code and reports them.

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177
178
179
            if ($updateComposerJson) {
180
                $composerJsonObj = new ComposerJson ($moduleObject);
0 ignored issues
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Unused Code introduced by
The call to ComposerJson::__construct() has too many arguments starting with $moduleObject.

This check compares calls to functions or methods with their respective definitions. If the call has more arguments than are defined, it raises an issue.

If a function is defined several times with a different number of parameters, the check may pick up the wrong definition and report false positives. One codebase where this has been known to happen is Wordpress.

In this case you can add the @ignore PhpDoc annotation to the duplicate definition and it will be ignored.

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181
                $composerJsonObj->updateJsonData();
182
                $moduleObject->setDescription($composerJsonObj->getDescription());
183
            }
184
185
			$excludedWords = $this->Config()->get('excluded_words');
186
			
187
			
188
			if (count($excludedWords) > 0) 
189
			{
190
				$folder = GitHubModule::Config()->get('absolute_temp_folder') . '/' . $moduleObject->moduleName . '/';
191
192
				$results = $this->checkDirExcludedWords($folder.'/'.$moduleObject->modulename, $excludedWords);
193
				
194
				
195
				if ($results && count ($results > 0)) 
0 ignored issues
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Bug Best Practice introduced by
The expression $results of type array is implicitly converted to a boolean; are you sure this is intended? If so, consider using ! empty($expr) instead to make it clear that you intend to check for an array without elements.

This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent.

Consider making the comparison explicit by using empty(..) or ! empty(...) instead.

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196
				{
197
					$msg = "<h4>The following excluded words were found: </h4><ul>";
198
					foreach ($results as $file => $words) {
199
						foreach ($words as $word) {
200
							$msg .= "<li>$word in $file</li>";
201
						}
202
					}
203
					$msg .= '</ul>';
204
					
205
					//trigger_error ("excluded words found in files(s)");
0 ignored issues
show
Unused Code Comprehensibility introduced by
67% of this comment could be valid code. Did you maybe forget this after debugging?

Sometimes obsolete code just ends up commented out instead of removed. In this case it is better to remove the code once you have checked you do not need it.

The code might also have been commented out for debugging purposes. In this case it is vital that someone uncomments it again or your project may behave in very unexpected ways in production.

This check looks for comments that seem to be mostly valid code and reports them.

Loading history...
206
					GeneralMethods::outputToScreen ($msg);
207
					UpdateModules::$unsolvedItems[$moduleObject->ModuleName] = $msg;
208
				}
209
				
210
			}
211
212
213
            foreach($files as $file) {
214
                //run file update
215
216
                $obj = $file::create($moduleObject);
217
                $obj->run();
218
            }
219
220
			$moduleDir = $moduleObject->Directory();
221
222
            foreach($commands as $command) {
223
                //run file update
224
                
225
                
226
                $obj = $command::create($moduleDir);
227
                $obj->run();
228
                
229
                
230
                //run command
231
            }
232
233
            //Update Repository description
234
            //$moduleObject->updateGitHubInfo(array());
0 ignored issues
show
Unused Code Comprehensibility introduced by
89% of this comment could be valid code. Did you maybe forget this after debugging?

Sometimes obsolete code just ends up commented out instead of removed. In this case it is better to remove the code once you have checked you do not need it.

The code might also have been commented out for debugging purposes. In this case it is vital that someone uncomments it again or your project may behave in very unexpected ways in production.

This check looks for comments that seem to be mostly valid code and reports them.

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235
236 View Code Duplication
            if( ! $moduleObject->add()) {
0 ignored issues
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Duplication introduced by
This code seems to be duplicated across your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

Loading history...
237
			
238
				$msg = "Could not add files module to Repo";
239
				GeneralMethods::outputToScreen ($msg);
240
				UpdateModules::$unsolvedItems[$moduleObject->ModuleName] = $msg;
241
				continue;
242
			
243
			}
244 View Code Duplication
            if( ! $moduleObject->commit()) 	{
0 ignored issues
show
Duplication introduced by
This code seems to be duplicated across your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

Loading history...
245
				$msg = "Could not commit files to Repo";
246
				GeneralMethods::outputToScreen ($msg);
247
				UpdateModules::$unsolvedItems[$moduleObject->ModuleName] = $msg;
248
				continue;				
249
			}
250
			
251 View Code Duplication
            if( ! $moduleObject->push()) {
0 ignored issues
show
Duplication introduced by
This code seems to be duplicated across your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

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252
				$msg = "Could not push files to Repo";
253
				GeneralMethods::outputToScreen ($msg);
254
				UpdateModules::$unsolvedItems[$moduleObject->ModuleName] = $msg;
255
				continue;					
256
			}
257 View Code Duplication
            if( ! $moduleObject->removeClone()) 
0 ignored issues
show
Duplication introduced by
This code seems to be duplicated across your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

Loading history...
258
			{
259
				$msg = "Could not remove local copy of repo";
260
				GeneralMethods::outputToScreen ($msg);
261
				UpdateModules::$unsolvedItems[$moduleObject->ModuleName] = $msg;				
262
			}
263
			
264
			$moduleObject->addRepoToScrutinzer();
265
            
266
	}
267
    
268
269
    
270
    protected function renameTest($moduleObject) {
271
		
272
		$oldName = $moduleObject->Directory() . "/tests/ModuleTest.php";
273
		
274
		if ( ! file_exists($oldName) ) 
275
		{
276
			print_r ($oldName);
277
			return false;
278
		}
279
		
280
		
281
		
282
		$newName = $moduleObject->Directory() . "tests/" . $moduleObject->ModuleName . "Test.php";
283
		
284
		GeneralMethods::outputToScreen ("Renaming $oldName to $newName");
285
		
286
		unlink ($newName);
287
		
288
		rename($oldName, $newName);
289
290
		
291
	}
292
293
	public static function addUnsolvedProblem($moduleName, $problemString) {
294
		if (!isset (UpdateModules::$unsolvedItems[$moduleName]) )
295
		{
296
			UpdateModules::$unsolvedItems[$moduleName] = array();
297
		}
298
		array_push (UpdateModules::$unsolvedItems[$moduleName], $problemString);
299
	}
300
		
301
	protected function writeLog() {
302
		
303
		
304
305
		$mailTo = $this->Config()->get('report_email');
0 ignored issues
show
Unused Code introduced by
$mailTo is not used, you could remove the assignment.

This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.

$myVar = 'Value';
$higher = false;

if (rand(1, 6) > 3) {
    $higher = true;
} else {
    $higher = false;
}

Both the $myVar assignment in line 1 and the $higher assignment in line 2 are dead. The first because $myVar is never used and the second because $higher is always overwritten for every possible time line.

Loading history...
306
		$debug = $this->Config()->get('debug');
0 ignored issues
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Unused Code introduced by
$debug is not used, you could remove the assignment.

This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.

$myVar = 'Value';
$higher = false;

if (rand(1, 6) > 3) {
    $higher = true;
} else {
    $higher = false;
}

Both the $myVar assignment in line 1 and the $higher assignment in line 2 are dead. The first because $myVar is never used and the second because $higher is always overwritten for every possible time line.

Loading history...
307
		
308
		$dateStr =  date("Y/m/d H:i:s");
309
		
310
		$html = '<h1> Modules checker report at ' .$dateStr . '</h1>';
311
		
312
		if (count (UpdateModules::$unsolvedItems) == 0) {
313
			$html .= ' <h2> No unresolved problems in modules</h2>';
314
		}
315
		
316
		else {
317
			$html .= '
318
				<h2> Unresolved problems in modules</h2>
319
			
320
			<table border = 1>
321
					<tr><th>Module</th><th>Problem</th></tr>';
322
		
323
			foreach (UpdateModules::$unsolvedItems as $moduleName => $problems) {
324
325
				foreach ($problems as $problem) {
326
				
327
					$html .= '<tr><td>'.$moduleName.'</td><td>'. $problem .'</td></tr>';
328
				}
329
			}
330
			$html .= '</table>';
331
	
332
			
333
		}
334
		
335
		
336
		
337
		$logFolder = $this->Config()->get('logfolder');
338
		
339
		$filename = $logFolder . date('U') . '.html';
340
		
341
		GeneralMethods::outputToScreen ("Writing to $filename");
342
		
343
		$result = file_put_contents ( $filename, $html);
344
		
345
		if ( ! $result )
346
		{
347
			GeneralMethods::outputToScreen ("Could not write log file");
348
		}
349
		
350
351
	
352
	}
353
354
    protected function checkConfigYML($module)
355
    {
356
        $configYml = ConfigYML::create($module)->reWrite();
0 ignored issues
show
Unused Code introduced by
$configYml is not used, you could remove the assignment.

This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.

$myVar = 'Value';
$higher = false;

if (rand(1, 6) > 3) {
    $higher = true;
} else {
    $higher = false;
}

Both the $myVar assignment in line 1 and the $higher assignment in line 2 are dead. The first because $myVar is never used and the second because $higher is always overwritten for every possible time line.

Loading history...
357
 
358
    }
359
360
    private function checkFile($module, $filename) {
361
        $folder = GitHubModule::Config()->get('absolute_temp_folder');
362
        return file_exists($folder.'/'.$module.'/'.$filename);
363
    }
364
365
    private function checkReadMe($module) {
366
        return $this->checkFile($module, "README.MD");
367
    }
368
369
    private function checkDirExcludedWords($directory, $wordArray) {
370
        $filesAndFolders = scandir ($directory);
371
372
        $problem_files = array();
373
        foreach ($filesAndFolders as $fileOrFolder) {
374
375
            if ($fileOrFolder == '.' || $fileOrFolder == '..' || $fileOrFolder == '.git'  ) {
376
                continue;
377
            }
378
379
            $fileOrFolderFullPath = $directory . '/' . $fileOrFolder;
380
            if (is_dir($fileOrFolderFullPath)) {
381
                $dir = $fileOrFolderFullPath;
382
                $problem_files = array_merge ($this->checkDirExcludedWords ($dir, $wordArray) , $problem_files);
383
            }
384
            if (is_file($fileOrFolderFullPath)) {
385
                $file = $fileOrFolderFullPath;
386
                $matchedWords = $this->checkFileExcludedWords($file, $wordArray);
387
388
                if ($matchedWords) {
0 ignored issues
show
Bug Best Practice introduced by
The expression $matchedWords of type array is implicitly converted to a boolean; are you sure this is intended? If so, consider using ! empty($expr) instead to make it clear that you intend to check for an array without elements.

This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent.

Consider making the comparison explicit by using empty(..) or ! empty(...) instead.

Loading history...
389
		
390
                   $problem_files[$file] = $matchedWords;
391
                }
392
            }
393
        }
394
395
        return $problem_files;
396
    }
397
398
    private function checkFileExcludedWords($fileName, $wordArray) {
399
		
400
401
        $matchedWords = array();
402
403
		$fileName = str_replace ('////', '/',  $fileName);
404
		if (filesize ($fileName) == 0 ) return $matchedWords; 
405
406
407
        $fileContent = file_get_contents($fileName);
408 View Code Duplication
		if (!$fileContent) {
0 ignored issues
show
Duplication introduced by
This code seems to be duplicated across your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

Loading history...
409
			
410
			$msg = "Could not open $fileName to check for excluded words";
411
			
412
			GeneralMethods::outputToScreen ($msg);
413
			UpdateModules::$unsolvedItems[$moduleObject->ModuleName] = $msg;
0 ignored issues
show
Bug introduced by
The variable $moduleObject does not exist. Did you forget to declare it?

This check marks access to variables or properties that have not been declared yet. While PHP has no explicit notion of declaring a variable, accessing it before a value is assigned to it is most likely a bug.

Loading history...
414
		}
415
416
        foreach ($wordArray as $word)  {
417
			
418
419
            $matches = array();
0 ignored issues
show
Unused Code introduced by
$matches is not used, you could remove the assignment.

This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.

$myVar = 'Value';
$higher = false;

if (rand(1, 6) > 3) {
    $higher = true;
} else {
    $higher = false;
}

Both the $myVar assignment in line 1 and the $higher assignment in line 2 are dead. The first because $myVar is never used and the second because $higher is always overwritten for every possible time line.

Loading history...
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            $matchCount = preg_match_all('/' . $word . '/i', $fileContent);
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            if ($matchCount > 0) {
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                array_push ($matchedWords, $word);
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            }
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        }
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        return $matchedWords;
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    }
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    private function checkUpdateTag($moduleObject) {
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        $aWeekAgo = strtotime("-1 weeks");
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        $tag = $moduleObject->getLatestTag();
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        $commitTime = $moduleObject->getLatestCommitTime();
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		if (! $commitTime) // if no commits, cannot create a tag
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		{
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			return false;
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		}
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        $createTag = false;
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        if ( ! $tag ) {
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            $createTag = true;
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            $newTagString = '1.0.0';
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        }
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        else if ($tag && $commitTime > $tag['timestamp'] && $commitTime < $aWeekAgo) {
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            $createTag = true;
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            $tag['tagparts'][1] = $tag['tagparts'][1] + 1;
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            $newTagString = trim(implode ('.', $tag['tagparts']));
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        }
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        if ($createTag) {
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            GeneralMethods::outputToScreen ('<li> Creating new tag  '.$newTagString.' ... </li>');
0 ignored issues
show
Bug introduced by
The variable $newTagString does not seem to be defined for all execution paths leading up to this point.

If you define a variable conditionally, it can happen that it is not defined for all execution paths.

Let’s take a look at an example:

function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}

In the above example, the variable $x is defined if you pass “foo” or “bar” as argument for $a. However, since the switch statement has no default case statement, if you pass any other value, the variable $x would be undefined.

Available Fixes

  1. Check for existence of the variable explicitly:

    function myFunction($a) {
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
        }
    
        if (isset($x)) { // Make sure it's always set.
            echo $x;
        }
    }
    
  2. Define a default value for the variable:

    function myFunction($a) {
        $x = ''; // Set a default which gets overridden for certain paths.
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
        }
    
        echo $x;
    }
    
  3. Add a value for the missing path:

    function myFunction($a) {
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
    
            // We add support for the missing case.
            default:
                $x = '';
                break;
        }
    
        echo $x;
    }
    
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            //git tag -a 0.0.1 -m "testing tag"
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            $options = array (
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                'a' => $newTagString,
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                'm' => $this->Config()->get('tag_create_message')
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            );
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            $moduleObject->createTag ($options);
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        }
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		return true;
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    }
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    protected function moveOldReadMe($moduleObject) {
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		$tempDir = GitHubModule::Config()->get('absolute_temp_folder');
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		$oldReadMe = $tempDir . '/' .  $moduleObject->ModuleName . '/' .'README.md';
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		if (!file_exists($oldReadMe))
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		{
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			return false;
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		}
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		$oldreadmeDestinationFiles = array (
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				'docs/en/INDEX.md',
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				'docs/en/README.old.md', 
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			);
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		$copied = false;
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		foreach ($oldreadmeDestinationFiles as $file) {
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			$filePath = $tempDir . '/' .  $moduleObject->ModuleName . '/' . $file;
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			if (!file_exists($filePath)) {
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				$copied = true;
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				copy($oldReadMe, $filePath);
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			}
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		}
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		if ($copied) 
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		{
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			unlink ($oldReadMe);
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		}
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	}
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}
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