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                #!/usr/bin/env php  | 
            
                            
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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Highlights important output  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @param string $msg  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                 */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                function exclaim($msg)  | 
            
            
                                                                        
                            
            
                                    
            
            
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                { | 
            
            
                                                                        
                            
            
                                    
            
            
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                    echo "\n\033[1;36m" . $msg . "\033[0m\n";  | 
            
            
                                                                        
                            
            
                                    
            
            
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                }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                date_default_timezone_set('America/New_York'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                $date = date('Y-m-d'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /* Get version number of latest releases */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                $products = file_get_contents('http://code.highcharts.com/products.js'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                preg_match_all('/\d\.\d+\.\d+/', $products, $matches); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                $ver = $matches[0][0];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                $stockVer = $matches[0][1];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                $mapsVer = $matches[0][2];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /* Prompt for version numbers */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                echo "\nEnter the HIGHCHARTS version [$ver]: ";  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                $ver = trim(fgets(STDIN)) ?: $ver;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                echo "\nEnter the HIGHSTOCK version [$stockVer]: ";  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                $stockVer = trim(fgets(STDIN)) ?: $stockVer;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                echo "\nEnter the HIGHMAPS version [$mapsVer]: ";  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                $mapsVer = trim(fgets(STDIN)) ?: $mapsVer;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                exclaim("Fetching archives"); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                $dir = dirname(dirname(__FILE__)) . '/highcharts/assets';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                if (!is_dir($dir) || !chdir($dir)) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    echo "Error: Directory '$dir' is inaccessible.\n";  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    return false;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                echo `  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                rm -rfv $dir/*  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                wget http://code.highcharts.com/zips/Highcharts-$ver.zip  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                wget http://code.highcharts.com/zips/Highstock-$stockVer.zip  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                wget http://code.highcharts.com/zips/Highmaps-$mapsVer.zip  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                unzip Highcharts-$ver.zip js/\*  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                unzip -n Highstock-$stockVer.zip js/\*  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                unzip -n Highmaps-$mapsVer.zip js/\*  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                mv js/* .  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                rmdir js  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                rm *.zip  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                `;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                exclaim("Purging extraneous assets"); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                echo `rm -rfv parts* *debug* .htaccess`;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                exclaim("Creating missing src files"); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                echo `  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                for file in $(find . -name '*.js' ! -name '*.src.js'); do   | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     cp -nv "\$file" \${file%.js}.src.js | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                done  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                `;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                exclaim("Updating Changelog"); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                $fileName = dirname(dirname(__FILE__)) . '/CHANGELOG.md';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                $changelogLink = " See the Highcharts [changelog](http://highcharts.com/documentation/changelog) for more information about what's new in this version.";  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                $changelogEntry = "### [v$ver](https://github.com/miloschuman/yii-highcharts/releases/tag/v$ver) ($date) ###\n"  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    . "* Upgraded Highcharts JS library to the latest release ($ver).$changelogLink";  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                $contents = file_get_contents($fileName);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                $contents = str_replace($changelogLink, '', $contents);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                $contents = str_replace("===\n", "===\n\n$changelogEntry\n", $contents); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                file_put_contents($fileName, $contents);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                exclaim("Done, bitch!"); | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                exclaim("Don't forget to UPDATE README.md!"); | 
            
            
                                                        
            
                                    
            
            
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The PSR-1: Basic Coding Standard recommends that a file should either introduce new symbols, that is classes, functions, constants or similar, or have side effects. Side effects are anything that executes logic, like for example printing output, changing ini settings or writing to a file.
The idea behind this recommendation is that merely auto-loading a class should not change the state of an application. It also promotes a cleaner style of programming and makes your code less prone to errors, because the logic is not spread out all over the place.
To learn more about the PSR-1, please see the PHP-FIG site on the PSR-1.