feat: allow to set the cwd in copyFromPod for use in tar

src/cp.ts

@@ -16,15 +16,21 @@ export class Cp {
      * @param {string} containerName - The name of the container in the pod to exec the command inside.
      * @param {string} srcPath - The source path in the pod
      * @param {string} tgtPath - The target path in local
+     * @param {string} [cwd] - The directory that is used as the parent in the pod when downloading
      */
     public async cpFromPod(
         namespace: string,
         podName: string,
         containerName: string,
         srcPath: string,
         tgtPath: string,
+        cwd?: string,
     ): Promise<void> {
-        const command = ['tar', 'zcf', '-', srcPath];
+        const command = ['tar', 'zcf', '-'];
+        if (cwd) {
+            command.push('-C', cwd);
+        }
+        command.push(srcPath);
         const writerStream = tar.extract(tgtPath);
         const errStream = new WritableStreamBuffer();
         this.execInstance.exec(

src/cp_test.ts

@@ -38,6 +38,35 @@ describe('Cp', () => {
             await cp.cpFromPod(namespace, pod, container, srcPath, tgtPath);
             verify(fakeWebSocket.connect(`${path}?${queryStr}`, null, anyFunction())).called();
         });
+
+        it('should run create tar command to a url with cwd', async () => {
+            const kc = new KubeConfig();
+            const fakeWebSocket: WebSocketInterface = mock(WebSocketHandler);
+            const exec = new Exec(kc, instance(fakeWebSocket));
+            const cp = new Cp(kc, exec);
+
+            const namespace = 'somenamespace';
+            const pod = 'somepod';
+            const container = 'container';
+            const srcPath = '/';
+            const tgtPath = '/';
+            const cwd = '/abc';
+            const cmdArray = ['tar', 'zcf', '-', '-C', cwd, srcPath];
+            const path = `/api/v1/namespaces/${namespace}/pods/${pod}/exec`;
+
+            const query = {
+                stdout: true,
+                stderr: true,
+                stdin: false,
+                tty: false,
+                command: cmdArray,
+                container,
+            };
+            const queryStr = querystring.stringify(query);
+
+            await cp.cpFromPod(namespace, pod, container, srcPath, tgtPath, cwd);
+            verify(fakeWebSocket.connect(`${path}?${queryStr}`, null, anyFunction())).called();
+        });
     });
 
     describe('cpToPod', () => {