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   1  <?php
   2  /**
   3   * cdb inspector tool
   4   *
   5   * This program is free software; you can redistribute it and/or modify
   6   * it under the terms of the GNU General Public License as published by
   7   * the Free Software Foundation; either version 2 of the License, or
   8   * (at your option) any later version.
   9   *
  10   * This program is distributed in the hope that it will be useful,
  11   * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13   * GNU General Public License for more details.
  14   *
  15   * You should have received a copy of the GNU General Public License along
  16   * with this program; if not, write to the Free Software Foundation, Inc.,
  17   * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18   * http://www.gnu.org/copyleft/gpl.html
  19   *
  20   * @file
  21   * @todo document
  22   * @ingroup Maintenance
  23   */
  24  
  25  /** */
  26  require_once  __DIR__ . '/commandLine.inc';
  27  
  28  function cdbShowHelp( $command ) {
  29      $commandList = array(
  30          'load' => 'load a cdb file for reading',
  31          'get' => 'get a value for a key',
  32          'exit' => 'exit cdb',
  33          'quit' => 'exit cdb',
  34          'help' => 'help about a command',
  35      );
  36      if ( !$command ) {
  37          $command = 'fullhelp';
  38      }
  39      if ( $command === 'fullhelp' ) {
  40          $max_cmd_len = max( array_map( 'strlen', array_keys( $commandList ) ) );
  41          foreach ( $commandList as $cmd => $desc ) {
  42              printf( "%-{$max_cmd_len}s: %s\n", $cmd, $desc );
  43          }
  44      } elseif ( isset( $commandList[$command] ) ) {
  45          print "$command: $commandList[$command]\n";
  46      } else {
  47          print "$command: command does not exist or no help for it\n";
  48      }
  49  }
  50  
  51  do {
  52      $bad = false;
  53      $showhelp = false;
  54      $quit = false;
  55      static $fileHandle = false;
  56  
  57      $line = Maintenance::readconsole();
  58      if ( $line === false ) {
  59          exit;
  60      }
  61  
  62      $args = explode( ' ', $line );
  63      $command = array_shift( $args );
  64  
  65      // process command
  66      switch ( $command ) {
  67          case 'help':
  68              // show an help message
  69              cdbShowHelp( array_shift( $args ) );
  70              break;
  71          case 'load':
  72              if ( !isset( $args[0] ) ) {
  73                  print "Need a filename there buddy\n";
  74                  break;
  75              }
  76              $file = $args[0];
  77              print "Loading cdb file $file...";
  78              try {
  79                  $fileHandle = CdbReader::open( $file );
  80              } catch ( CdbException $e ) {
  81              }
  82  
  83              if ( !$fileHandle ) {
  84                  print "not a cdb file or unable to read it\n";
  85              } else {
  86                  print "ok\n";
  87              }
  88              break;
  89          case 'get':
  90              if ( !$fileHandle ) {
  91                  print "Need to load a cdb file first\n";
  92                  break;
  93              }
  94              if ( !isset( $args[0] ) ) {
  95                  print "Need to specify a key, Luke\n";
  96                  break;
  97              }
  98              try {
  99                  $res = $fileHandle->get( $args[0] );
 100              } catch ( CdbException $e ) {
 101                  print "Unable to read key from file\n";
 102                  break;
 103              }
 104              if ( $res === false ) {
 105                  print "No such key/value pair\n";
 106              } elseif ( is_string( $res ) ) {
 107                  print "$res\n";
 108              } else {
 109                  var_dump( $res );
 110              }
 111              break;
 112          case 'quit':
 113          case 'exit':
 114              $quit = true;
 115              break;
 116  
 117          default:
 118              $bad = true;
 119      } // switch() end
 120  
 121      if ( $bad ) {
 122          if ( $command ) {
 123              print "Bad command\n";
 124          }
 125      } else {
 126          if ( function_exists( 'readline_add_history' ) ) {
 127              readline_add_history( $line );
 128          }
 129      }
 130  } while ( !$quit );