recreate SmartOS imgadm database from cache

recreate.js

#!/usr/node/0.8/bin/node

var fs = require('fs');

var imgadm = require('/usr/img/node_modules/imgadm');
var db = require('/usr/img/node_modules/db');

var DB_PATH = '/var/db/imgadm';

db.list(function(err, uuids) {
    uuids.forEach(function (uuid) {
        try {
            JSON.parse(fs.readFileSync(DB_PATH + '/' + uuid + '.json'));
        } catch (err) {
            // recreate
            imgadm.show(uuid, function (err, manifest) {
                if (manifest === null) {
                    console.log('error: manifest for ' + uuid + ' not in cache (maybe local imported dataset)');
                    return;
                }

                db.save(manifest, function(err) {
                    if (err) console.log('error: updating ' + uuid + ' failed');
                });
            });
        }
    });
});