avoid deleting too many meta objects starting with the same name as adapter (#1405)

- closes #1403

Author: foxriver76

lib/setup/setupInstall.js

@@ -1156,16 +1156,21 @@ function Install(options) {
      * Enumerate all meta objects of an adapter
      * @type {(knownObjIDs: string[], adapter: string, metaFilesToDelete: string[]) => Promise<void>}
      */
-    this.enumerateAdapterMeta = function enumerateMeta(knownObjIDs, adapter, metaFilesToDelete) {
-        return getObjectViewAsync('system', 'meta', {
-            startkey: `${adapter}.`,
-            endkey: `${adapter}.\u9999`
-        }).then(doc => {
+    this.enumerateAdapterMeta = async function enumerateMeta(knownObjIDs, adapter, metaFilesToDelete) {
+        try {
+            const doc = await getObjectViewAsync('system', 'meta', {
+                startkey: `${adapter}.`,
+                endkey: `${adapter}.\u9999`
+            });
+
             if (doc.rows.length !== 0) {
+                const adapterRegex = new RegExp(`^${adapter}\\.`);
+
                 // add non-duplicates to the list
                 const newObjs = doc.rows
                     .filter(row => row && row.value && row.value._id)
                     .map(row => row.value._id)
+                    .filter(id => adapterRegex.test(id))
                     .filter(id => knownObjIDs.indexOf(id) === -1)
                 ;
                 knownObjIDs.push.apply(knownObjIDs, newObjs);
@@ -1176,8 +1181,9 @@ function Install(options) {
                     console.log(`host.${hostname} Counted ${newObjs.length} meta of ${adapter}`);
                 }
             }
-        }).catch(e =>
-            e !== tools.ERRORS.ERROR_NOT_FOUND && e.message !== tools.ERRORS.ERROR_NOT_FOUND && console.error('host.' + hostname + ' error: ' + e.message));
+        } catch (e) {
+            e !== tools.ERRORS.ERROR_NOT_FOUND && e.message !== tools.ERRORS.ERROR_NOT_FOUND && console.error(`host.${hostname} error: ${e.message}`);
+        }
     };
 
     /**
@@ -1701,4 +1707,4 @@ function Install(options) {
     };
 }
 
-module.exports = Install;
+module.exports = Install;