Drush cache-disable and cache-enable commands.

cache.drush.inc

<?php

function cache_drush_command() {
  $items = array();

  $items['cache-disable'] = array(
    'description' => 'Disable caching.',
    'arguments' => array(
      'type' => 'Name of Caches to Disable'
    ),
    'examples' => array(
      'drush cache-disable css',
    ),
    'aliases' => array('discache'),
    'bootstrap' => DRUSH_BOOTSTRAP_DRUPAL_FULL,
  );
  $items['cache-enable'] = array(
    'description' => 'Enable caching.',
    'arguments' => array(
      'type' => 'Name of Caches to Disable'
    ),
    'examples' => array(
      'drush cache-disable css',
    ),
    'aliases' => array('encache'),
    'bootstrap' => DRUSH_BOOTSTRAP_DRUPAL_FULL,
  );

  return $items;
}

function drush_cache_disable($type = NULL) {
  drush_cache_set(0, $type);
}
function drush_cache_enable($type = NULL) {
  drush_cache_set(1, $type);
}

function drush_cache_set($value, $type) {
  $types = array();
  $types['page'] = 'Page Cache';
  $types['block'] = 'Block Cache';
  $types['css'] = 'CSS Cache';
  $types['js'] = 'JS Cache';

  if(module_exists('devel')) {
    $types['theme'] = 'Theme Registry';
  }

  $types['all'] = 'All';
  
  
  if(!isset($types[$type])) {
    $type = drush_choice($types, 'Select a Cache Type');
  }
  
  $variables = array();

  switch($type) {
    case 'page':
      $variables['cache'] = $value;
      break;

    case 'block':
      $variables['block_cache'] = $value;
      break;

    case 'css':
      $variables['preprocess_css'] = $value;
      break;

    case 'js':
      $variables['preprocess_js'] = $value;
      break;

    case 'theme':
      $variables['devel_rebuild_theme_registry'] = ($value) ? 0 : 1;
      break;
    
    case 'all':
      $variables['cache'] = $value;
      $variables['block_cache'] = $value;
      $variables['preprocess_css'] = $value;
      $variables['preprocess_js'] = $value;
      if(isset($types['theme'])) {
        $variables['devel_rebuild_theme_registry'] = ($value) ? 0 : 1;
      }
  }

  foreach($variables as $key => $val) {
    drush_set_context('DRUSH_AFFIRMATIVE', TRUE);
    $capture = drush_invoke('variable-set', $key, $val);
  }
  
}

function drush_cache_types() {
  return array(
    'block_cache' => 'Block Cache',
    'cache' => 'Page Cache',
    'preprocess_css' => 'CSS Cache',
    'preprocess_js' => 'JS Cache',
    'all' => 'All',
  );
}