Remove tmp-promise

package.json

@@ -66,7 +66,6 @@
     "rfc4648": "^1.3.0",
     "stream-buffers": "^3.0.2",
     "tar": "^6.1.11",
-    "tmp-promise": "^3.0.2",
     "tslib": "^2.4.1",
     "ws": "^8.11.0"
   },

src/cp.ts

@@ -1,10 +1,9 @@
 import * as fs from 'fs';
 import { WritableStreamBuffer } from 'stream-buffers';
 import * as tar from 'tar';
-import * as tmp from 'tmp-promise';
-
 import { KubeConfig } from './config';
 import { Exec } from './exec';
+import { generateTmpFileName } from './util';
 
 export class Cp {
     public execInstance: Exec;
@@ -18,7 +17,7 @@ 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
+     * @param {string} [cwd] - The directory that is used as the parent in the pod when downloading
      */
     public async cpFromPod(
         namespace: string,
@@ -28,8 +27,7 @@ export class Cp {
         tgtPath: string,
         cwd?: string,
     ): Promise<void> {
-        const tmpFile = tmp.fileSync();
-        const tmpFileName = tmpFile.name;
+        const tmpFileName = await generateTmpFileName();
         const command = ['tar', 'zcf', '-'];
         if (cwd) {
             command.push('-C', cwd);
@@ -65,7 +63,7 @@ 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 local
      * @param {string} tgtPath - The target path in the pod
-     * @param {string} cwd - The directory that is used as the parent in the host when uploading
+     * @param {string} [cwd] - The directory that is used as the parent in the host when uploading
      */
     public async cpToPod(
         namespace: string,
@@ -75,16 +73,9 @@ export class Cp {
         tgtPath: string,
         cwd?: string,
     ): Promise<void> {
-        const tmpFile = tmp.fileSync();
-        const tmpFileName = tmpFile.name;
+        const tmpFileName = await generateTmpFileName();
         const command = ['tar', 'xf', '-', '-C', tgtPath];
-        await tar.c(
-            {
-                file: tmpFile.name,
-                cwd,
-            },
-            [srcPath],
-        );
+        await tar.c({ file: tmpFileName, cwd }, [srcPath]);
         const readStream = fs.createReadStream(tmpFileName);
         const errStream = new WritableStreamBuffer();
         this.execInstance.exec(

src/util.ts

@@ -1,3 +1,6 @@
+import { tmpdir } from 'os';
+import { randomUUID } from 'crypto';
+import { promises as fs, constants as fsConstants } from 'fs';
 import { CoreV1Api, V1Container, V1Pod } from './gen/api';
 
 export async function podsForNode(api: CoreV1Api, nodeName: string): Promise<V1Pod[]> {
@@ -142,3 +145,24 @@ export function totalForResource(pod: V1Pod, resource: string): ResourceStatus {
     });
     return new ResourceStatus(reqTotal, limitTotal, resource);
 }
+
+export async function generateTmpFileName(): Promise<string> {
+    let tmpFileName: string;
+
+    let i = 0;
+    do {
+        tmpFileName = `${tmpdir()}/${randomUUID()}`;
+
+        try {
+            await fs.access(tmpFileName, fsConstants.W_OK);
+
+            console.warn('Tmp file already exists');
+        } catch (err) {
+            return tmpFileName;
+        }
+
+        i++;
+    } while (i < 10);
+
+    throw new Error('Cannot generate tmp file name');
+}