Automatically deploy GIT projects using PHP scripts-PHP source code

Automatically deploy the GIT project deploy. PHP using a php script

   
   
   Simple PHP Git deploy script    
 Change the SECRET_ACCESS_TOKEN from it's default value!");  }  ?>  
     Checking the environment ...     Running as 
   .     
  BACKUP_DIR `%s` does not exists or is not writeable.
', BACKUP_DIR));      }    }    if (defined('USE_COMPOSER') && USE_COMPOSER === true) {      $requiredBinaries[] = 'composer --no-ansi';    }    foreach ($requiredBinaries as $command) {      $path = trim(shell_exec('which '.$command));      if ($path == '') {        die(sprintf('
%s not available. It needs to be installed on the server for this script to work.
', $command));      } else {        $version = explode("\n", shell_exec($command.' --version'));        printf('%s : %s'."\n"          , $path          , $version[0]          );      }    }    ?>     Environment OK.     Deploying 
   
      to        
   ...     
   %s'        , TMP_DIR        , TMP_DIR        , VERSION_FILE        );    }     // Backup the TARGET_DIR    // without the BACKUP_DIR for the case when it's inside the TARGET_DIR    if (defined('BACKUP_DIR') && BACKUP_DIR !== false) {      $commands[] = sprintf(        "tar --exclude='%s*' -czf %s/%s-%s-%s.tar.gz %s*"        , BACKUP_DIR        , BACKUP_DIR        , basename(TARGET_DIR)        , md5(TARGET_DIR)        , date('YmdHis')        , TARGET_DIR // We're backing up this directory into BACKUP_DIR      );    }     // Invoke composer    if (defined('USE_COMPOSER') && USE_COMPOSER === true) {      $commands[] = sprintf(        'composer --no-ansi --no-interaction --no-progress --working-dir=%s install %s'        , TMP_DIR        , (defined('COMPOSER_OPTIONS')) ? COMPOSER_OPTIONS : ''        );      if (defined('COMPOSER_HOME') && is_dir(COMPOSER_HOME)) {        putenv('COMPOSER_HOME='.COMPOSER_HOME);      }    }     // ==================================================[ Deployment ]===     // Compile exclude parameters    $exclude = '';    foreach (unserialize(EXCLUDE) as $exc) {      $exclude .= ' --exclude='.$exc;    }     // Deployment command    $commands[] = sprintf(      'rsync -rltgoDzvO %s %s %s %s'      , TMP_DIR      , TARGET_DIR      , (DELETE_FILES) ? '--delete-after' : ''      , $exclude    );     // =======================================[ Post-Deployment steps ]===     // Remove the TMP_DIR (depends on CLEAN_UP)    if (CLEAN_UP) {      $commands['cleanup'] = sprintf(        'rm -rf %s'        , TMP_DIR        );    }     // =======================================[ Run the command steps ]===    $output = '';    foreach ($commands as $command) {      set_time_limit(TIME_LIMIT); // Reset the time limit for each command      if (file_exists(TMP_DIR) && is_dir(TMP_DIR)) {        chdir(TMP_DIR); // Ensure that we're in the right directory      }      $tmp = array();      exec($command.' 2>&1', $tmp, $return_code); // Execute the command      // Output the result      printf('        $ %s        
%s
        '        , htmlentities(trim($command))        , htmlentities(trim(implode("\n", $tmp)))        );      $output .= ob_get_contents();      ob_flush(); // Try to output everything as it happens       // Error handling and cleanup      if ($return_code !== 0) {        printf('          
            Error encountered!            Stopping the script to prevent possible data loss.            CHECK THE DATA IN YOUR TARGET DIR!          
          '          );        if (CLEAN_UP) {          $tmp = shell_exec($commands['cleanup']);          printf('            Cleaning up temporary files ...             $ %s            
%s
            '            , htmlentities(trim($commands['cleanup']))            , htmlentities(trim($tmp))            );        }        $error = sprintf(          'Deployment error on %s using %s!'          , $_SERVER['HTTP_HOST']          , __FILE__          );        error_log($error);        if (EMAIL_ON_ERROR) {          $output .= ob_get_contents();          $headers = array();          $headers[] = sprintf('From: Simple PHP Git deploy script 
  
   ', $_SERVER['HTTP_HOST']);          $headers[] = sprintf('X-Mailer: PHP/%s', phpversion());          mail(EMAIL_ON_ERROR, $error, strip_tags(trim($output)), implode("\r\n", $headers));        }        break;      }    }    ?>  Done.