use dockers for tests, use npm workspaces, add rejson & redisearch modules, fix some bugs

packages/client/lib/commands/GEODIST.ts

@@ -0,0 +1,24 @@
+import { GeoUnits } from './generic-transformers';
+
+export const FIRST_KEY_INDEX = 1;
+
+export const IS_READ_ONLY = true;
+
+export function transformArguments(
+    key: string,
+    member1: string,
+    member2: string,
+    unit?: GeoUnits
+): Array<string> {
+    const args = ['GEODIST', key, member1, member2];
+
+    if (unit) {
+        args.push(unit);
+    }
+
+    return args;
+}
+
+export function transformReply(reply: string | null): number | null {
+    return reply === null ? null : Number(reply);
+}