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

packages/client/lib/lua-script.ts

@@ -0,0 +1,22 @@
+import { createHash } from 'crypto';
+import { RedisCommand } from './commands';
+
+export interface RedisScriptConfig extends RedisCommand {
+    SCRIPT: string;
+    NUMBER_OF_KEYS: number;
+}
+
+export interface SHA1 {
+    SHA1: string;
+}
+
+export function defineScript(script: RedisScriptConfig): typeof script & SHA1 {
+    return {
+        ...script,
+        SHA1: scriptSha1(script.SCRIPT)
+    };
+}
+
+export function scriptSha1(script: string): string {
+    return createHash('sha1').update(script).digest('hex');
+}