drop unnecessary code, restore instead of remove archived files in restoration script, change restore archived name

scripts/restore-archived.js

@@ -0,0 +1,63 @@
+var nThen = require("nthen");
+
+var Store = require("../storage/file");
+var config = require("../lib/load-config");
+
+var store;
+var Log;
+nThen(function (w) {
+    // load the store which will be used for iterating over channels
+    // and performing operations like archival and deletion
+    Store.create(config, w(function (_) {
+        store = _;
+    }));
+
+    // load the logging module so that you have a record of which
+    // files were archived or deleted at what time
+    var Logger = require("../lib/log");
+    Logger.create(config, w(function (_) {
+        Log = _;
+    }));
+}).nThen(function (w) {
+    // count the number of files which have been restored in this run
+    var restored = 0;
+
+    var handler = function (err, item, cb) {
+        if (err) {
+            Log.error('RESTORE_ARCHIVED_CHANNEL_ITERATION', err);
+            return void cb();
+        }
+
+        // but if it's been stored for the configured time...
+        // expire it
+        store.restoreArchivedChannel(item.channel, w(function (err) {
+            if (err) {
+                Log.error('RESTORE_ARCHIVED_CHANNEL_RESTORATION_ERROR', {
+                    error: err,
+                    channel: item.channel,
+                });
+                return void cb();
+            }
+            Log.info('RESTORE_ARCHIVED_CHANNEL_RESTORATION', item.channel);
+            restored++;
+            cb();
+        }));
+    };
+
+    // if you hit an error, log it
+    // otherwise, when there are no more channels to process
+    // log some stats about how many were removed
+    var done = function (err) {
+        if (err) {
+            return Log.error('RESTORE_ARCHIVED_FINAL_ERROR', err);
+        }
+        Log.info('RESTORE_ARCHIVED_CHANNELS_RESTORED', restored);
+    };
+
+    store.listArchivedChannels(handler, w(done));
+}).nThen(function () {
+    // the store will keep this script running if you don't shut it down
+    store.shutdown();
+    Log.shutdown();
+});
+