Add support for the mv command in NS

dist/bitburner.d.ts

@@ -4099,6 +4099,26 @@ export declare interface NS extends Singularity {
      */
     atExit(f: () => void): void;
 
+    /**
+     * Move a file on the target server.
+     * @remarks
+     * RAM cost: 0 GB
+     *
+     * NS2 exclusive
+     *
+     * Move the source file to the specified destination on the target server.
+     *
+     * This command only works for scripts and text files (.txt). It cannot, however,  be used
+     * to convert from script to text file, or vice versa.
+     *
+     * This function can also be used to rename files.
+     * 
+     * @param host - Host of target server.
+     * @param source - Filename of the source file.
+     * @param destination - Filename of the destination file.
+     */
+    mv(host: string, source: string, destination: string): void;
+
     /**
      * Parse command line flags.
      * @remarks

markdown/bitburner.ns.mv.md

@@ -0,0 +1,38 @@
+<!-- Do not edit this file. It is automatically generated by API Documenter. -->
+
+[Home](./index.md) &gt; [bitburner](./bitburner.md) &gt; [NS](./bitburner.ns.md) &gt; [atExit](./bitburner.ns.atexit.md)
+
+## NS.mv() method
+
+Move a file on the target server.
+
+<b>Signature:</b>
+
+```typescript
+mv(host: string, source: string, destination: string): void;
+```
+
+## Parameters
+
+|  Parameter | Type | Description |
+|  --- | --- | --- |
+|  host | string | Host of target server. |
+|  source | string | Filename of the source file. |
+|  destination | string | Filename of the destination file. |
+
+<b>Returns:</b>
+
+void
+
+## Remarks
+
+RAM cost: 0 GB
+
+NS2 exclusive
+
+Move the source file to the specified destination on the target server.
+
+This command only works for scripts and text files (.txt). It cannot, however,  be used
+to convert from script to text file, or vice versa.
+
+This function can also be used to rename files.

src/Netscript/RamCostGenerator.ts

@@ -207,6 +207,7 @@ export const RamCosts: IMap<any> = {
   wget: 0,
   getFavorToDonate: RamCostConstants.ScriptGetFavorToDonate,
   getPlayer: RamCostConstants.ScriptSingularityFn1RamCost / 4,
+  mv: 0,
   getOwnedSourceFiles: RamCostConstants.ScriptGetOwnedSourceFiles,
 
   // Singularity Functions

src/NetscriptFunctions.ts

@@ -697,8 +697,7 @@ export function NetscriptFunctions(workerScript: WorkerScript): NS {
         workerScript.log(
           "weaken",
           () =>
-            `'${server.hostname}' security level weakened to ${
+            `'${server.hostname}' security level weakened to ${server.hackDifficulty
-              server.hackDifficulty
             }. Gained ${numeralWrapper.formatExp(expGain)} hacking exp (t=${numeralWrapper.formatThreads(threads)})`,
         );
         workerScript.scriptRef.onlineExpGained += expGain;
@@ -2264,6 +2263,64 @@ export function NetscriptFunctions(workerScript: WorkerScript): NS {
       }
       workerScript.atExit = f;
     },
+    mv: function (host: string, source: string, destination: string): void {
+      updateDynamicRam("mv", getRamCost(Player, "mv"));
+
+      if (arguments.length != 3) throw makeRuntimeErrorMsg("mv", "Takes 3 argument.");
+
+      if (!isValidFilePath(source)) throw makeRuntimeErrorMsg("mv", `Invalid filename: '${source}'`);
+      if (!isValidFilePath(destination)) throw makeRuntimeErrorMsg("mv", `Invalid filename: '${destination}'`);
+
+      const source_is_txt = source.endsWith(".txt");
+      const dest_is_txt = destination.endsWith(".txt");
+
+      if (!isScriptFilename(source) && !source_is_txt) throw makeRuntimeErrorMsg("mv", `'mv' can only be used on scripts and text files (.txt)`);
+      if (source_is_txt != dest_is_txt) throw makeRuntimeErrorMsg("mv", `Source and destination files must have the same type`);
+
+      if (source === destination) {
+        return;
+      }
+
+      // This will throw if the server is not found, we do not need to validate result.
+      const destServer: BaseServer | null = safeGetServer(host, "mv");
+
+      if (!source_is_txt && destServer.isRunning(source)) throw makeRuntimeErrorMsg("mv", `Cannot use 'mv' on a script that is running`)
+
+      interface File {
+        filename: string;
+      }
+
+      const files = source_is_txt ? destServer.textFiles : destServer.scripts;
+      let source_file: File | null = null;
+      let dest_file: File | null = null;
+
+      for (let i = 0; i < files.length; ++i) {
+        const file = files[i];
+        if (file.filename === source) {
+          source_file = file;
+        } else if (file.filename === destination) {
+          dest_file = file;
+        }
+      }
+
+      if (source_file == null) throw makeRuntimeErrorMsg("mv", `Source file ${source} does not exist`)
+
+      if (dest_file != null) {
+        if (dest_file instanceof TextFile && source_file instanceof TextFile) {
+          dest_file.text = source_file.text;
+        } else if (dest_file instanceof Script && source_file instanceof Script) {
+          dest_file.code = source_file.code;
+          dest_file.markUpdated();
+        }
+
+        destServer.removeFile(source);
+      } else {
+        source_file.filename = destination;
+        if (source_file instanceof Script) {
+          source_file.markUpdated();
+        }
+      }
+    },
     flags: Flags(workerScript.args),
   };
 

src/ScriptEditor/NetscriptDefinitions.d.ts

@@ -5813,6 +5813,26 @@ export interface NS extends Singularity {
    */
   atExit(f: () => void): void;
 
+  /**
+   * Move a file on the target server.
+   * @remarks
+   * RAM cost: 0 GB
+   *
+   * NS2 exclusive
+   *
+   * Move the source file to the specified destination on the target server.
+   *
+   * This command only works for scripts and text files (.txt). It cannot, however,  be used
+   * to convert from script to text file, or vice versa.
+   *
+   * This function can also be used to rename files.
+   * 
+   * @param host - Host of target server.
+   * @param source - Filename of the source file.
+   * @param destination - Filename of the destination file.
+   */
+  mv(host: string, source: string, destination: string): void;
+
   /**
    * Parse command line flags.
    * @remarks

src/TextFile.ts

@@ -17,6 +17,20 @@ export class TextFile {
    */
   text: string;
 
+  /**
+   * The full file name.
+   */
+   get filename(): string {
+    return this.fn;
+  }
+
+  /**
+   * The full file name.
+   */
+   set filename(value: string) {
+    this.fn = value;
+  }
+
   constructor(fn = "", txt = "") {
     this.fn = (fn.endsWith(".txt") ? fn : `${fn}.txt`).replace(/\s+/g, "");
     this.text = txt;