Node JS version

node_modules/adm-zip/methods/deflater.js

@@ -0,0 +1,33 @@
+module.exports = function (/*Buffer*/ inbuf) {
+    var zlib = require("zlib");
+
+    var opts = { chunkSize: (parseInt(inbuf.length / 1024) + 1) * 1024 };
+
+    return {
+        deflate: function () {
+            return zlib.deflateRawSync(inbuf, opts);
+        },
+
+        deflateAsync: function (/*Function*/ callback) {
+            var tmp = zlib.createDeflateRaw(opts),
+                parts = [],
+                total = 0;
+            tmp.on("data", function (data) {
+                parts.push(data);
+                total += data.length;
+            });
+            tmp.on("end", function () {
+                var buf = Buffer.alloc(total),
+                    written = 0;
+                buf.fill(0);
+                for (var i = 0; i < parts.length; i++) {
+                    var part = parts[i];
+                    part.copy(buf, written);
+                    written += part.length;
+                }
+                callback && callback(buf);
+            });
+            tmp.end(inbuf);
+        }
+    };
+};