initial commit

node_modules/ioredis/built/ScanStream.js

@@ -0,0 +1,48 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+const stream_1 = require("stream");
+/**
+ * Convenient class to convert the process of scaning keys to a readable stream.
+ */
+class ScanStream extends stream_1.Readable {
+    constructor(opt) {
+        super(opt);
+        this.opt = opt;
+        this._redisCursor = "0";
+        this._redisDrained = false;
+    }
+    _read() {
+        if (this._redisDrained) {
+            this.push(null);
+            return;
+        }
+        const args = [this._redisCursor];
+        if (this.opt.key) {
+            args.unshift(this.opt.key);
+        }
+        if (this.opt.match) {
+            args.push("MATCH", this.opt.match);
+        }
+        if (this.opt.type) {
+            args.push("TYPE", this.opt.type);
+        }
+        if (this.opt.count) {
+            args.push("COUNT", String(this.opt.count));
+        }
+        this.opt.redis[this.opt.command](args, (err, res) => {
+            if (err) {
+                this.emit("error", err);
+                return;
+            }
+            this._redisCursor = res[0] instanceof Buffer ? res[0].toString() : res[0];
+            if (this._redisCursor === "0") {
+                this._redisDrained = true;
+            }
+            this.push(res[1]);
+        });
+    }
+    close() {
+        this._redisDrained = true;
+    }
+}
+exports.default = ScanStream;