ESM: Ported Bzip2, Diff and Tar operations

src/core/operations/Bzip2Decompress.mjs

@@ -0,0 +1,55 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+import bzip2 from "../vendor/bzip2.js";
+import OperationError from "../errors/OperationError";
+
+/**
+ * Bzip2 Decompress operation
+ */
+class Bzip2Decompress extends Operation {
+
+    /**
+     * Bzip2Decompress constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Bzip2 Decompress";
+        this.module = "Compression";
+        this.description = "Decompresses data using the Bzip2 algorithm.";
+        this.inputType = "byteArray";
+        this.outputType = "string";
+        this.args = [];
+        this.patterns = [
+            {
+                "match": "^\\x42\\x5a\\x68",
+                "flags": "",
+                "args": []
+            }
+        ];
+    }
+
+    /**
+     * @param {byteArray} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+        const compressed = new Uint8Array(input);
+
+        try {
+            const bzip2Reader = bzip2.array(compressed);
+            return bzip2.simple(bzip2Reader);
+        } catch (err) {
+            throw new OperationError(err);
+        }
+    }
+
+}
+
+export default Bzip2Decompress;