Added file tree functionality

Author: sw5678

src/core/config/Categories.json

@@ -294,7 +294,8 @@
             "Escape string",
             "Unescape string",
             "Pseudo-Random Number Generator",
-            "Sleep"
+            "Sleep",
+            "File Tree"
         ]
     },
     {

src/core/operations/FileTree.mjs

@@ -0,0 +1,100 @@
+/**
+ * @author sw5678
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation.mjs";
+import Utils from "../Utils.mjs";
+import {INPUT_DELIM_OPTIONS} from "../lib/Delim.mjs";
+
+/**
+ * Unique operation
+ */
+class FileTree extends Operation {
+
+    /**
+     * Unique constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "File Tree";
+        this.module = "Default";
+        this.description = "Creates file tree from list of file paths (Similar too tree linux command)";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [
+            {
+                name: "File Path Delimiter",
+                type: "binaryString",
+                value: "/"
+            },
+            {
+                name: "Delimiter",
+                type: "option",
+                value: INPUT_DELIM_OPTIONS
+            }
+        ];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+
+        // Set up arrow and pipe for nice output display
+        const ARROW = '|---';
+        const PIPE = '|   ';
+
+        // Get args from input
+        const file_delim = args[0];
+        const entry_delim = Utils.charRep(args[1]); 
+
+        // Store path to print
+        let completed_list = [];
+        let print_list = [];
+
+        // Loop through all entries
+        const file_paths = input.split(entry_delim).unique().sort();
+        for (var i = 0; i < file_paths.length; i++)
+        {
+            // Split by file delimiter
+            let path = file_paths[i].split(file_delim);
+
+            if (path[0] == '')
+            {
+                path  = path.slice(1, path.length);
+            }
+
+            for (var j = 0; j < path.length; j++)
+            {
+                let print_line;
+                let key;
+                if (j == 0)
+                {
+                    print_line = path[j];
+                    key = path[j];
+                }
+                else
+                {
+                    print_line = PIPE.repeat(j-1) + ARROW + path[j]
+                    key = path.slice(0, j+1).join("/");
+                }
+
+                // Check to see we have already added that path
+                if (!completed_list.includes(key))
+                {
+                    completed_list.push(key);
+                    print_list.push(print_line);
+                }
+            }
+        }
+        return print_list.join("\n");
+    }
+
+}
+
+export default FileTree;

tests/operations/tests/FileTree.mjs

@@ -0,0 +1,21 @@
+/**
+ * @author sw5678
+ * @copyright Crown Copyright 2023
+ * @license Apache-2.0
+ */
+import TestRegister from "../../lib/TestRegister.mjs";
+
+TestRegister.addTests([
+    {
+        "name": "Swap Case: basic example",
+        "input": "/test_dir1/test_file1.txt\n/test_dir1/test_file2.txt\n/test_dir2/test_file1.txt",
+        "expectedOutput": "test_dir1\n|---test_file1.txt\n|---test_file2.txt\ntest_dir2\n|---test_file1.txt",
+        "recipeConfig": [
+            {
+                "op": "File Tree",
+                "args": [
+                ],
+            },
+        ],
+    }
+]);