fix: import recursive backup directory issue

packages/contentstack-import/package.json

@@ -14,11 +14,11 @@
     "bluebird": "^3.7.2",
     "chalk": "^4.1.2",
     "debug": "^4.1.0",
+    "fs-extra": "^11.1.1",
     "lodash": "^4.17.20",
     "marked": "^4.0.17",
     "merge": "^2.1.1",
     "mkdirp": "^1.0.4",
-    "ncp": "^2.0.0",
     "promise-limit": "^2.7.0",
     "tslib": "^2.4.1",
     "winston": "^3.7.2"
@@ -27,9 +27,9 @@
     "@oclif/test": "^1.2.6",
     "@types/bluebird": "^3.5.38",
     "@types/chai": "^4.2.18",
+    "@types/fs-extra": "^11.0.1",
     "@types/mkdirp": "^1.0.2",
     "@types/mocha": "^8.2.2",
-    "@types/ncp": "^2.0.5",
     "@types/node": "^14.14.32",
     "@types/sinon": "^10.0.2",
     "@types/tar": "^4.0.3",
@@ -96,4 +96,4 @@
     }
   },
   "repository": "https://github.com/contentstack/cli"
-}
+}

packages/contentstack-import/src/import/module-importer.ts

@@ -48,6 +48,7 @@ class ModuleImporter {
     }
     const backupDir = await backupHandler(this.importConfig);
     if (backupDir) {
+      log(this.importConfig, `Backup directory path - '${backupDir}'`, 'info');
       this.importConfig.backupDir = backupDir;
       // To support the old config
       this.importConfig.data = backupDir;

packages/contentstack-import/src/utils/backup-handler.ts

@@ -1,35 +1,40 @@
 import * as path from 'path';
-import ncp from 'ncp';
+import { copy } from 'fs-extra';
+import { cliux } from '@contentstack/cli-utilities';
 
-import { ImportConfig } from '../types';
 import { fileHelper } from './index';
+import { ImportConfig } from '../types';
 
 export default function setupBackupDir(importConfig: ImportConfig): Promise<string> {
   return new Promise(async (resolve, reject) => {
     if (importConfig.hasOwnProperty('useBackedupDir')) {
       return resolve(importConfig.useBackedupDir);
     }
 
-    //NOTE: If the backup folder's directory is provided, create it at that location; otherwise, the default path (working directory).
-    let backupDirPath = path.join(process.cwd(), '_backup_' + Math.floor(Math.random() * 1000));
-    if (importConfig.createBackupDir) {
-      if (fileHelper.fileExistsSync(importConfig.createBackupDir)) {
-        fileHelper.removeDirSync(importConfig.createBackupDir);
+    const subDir = isSubDirectory(importConfig);
+    let backupDirPath: string;
+
+    if (subDir) {
+      backupDirPath = path.resolve(importConfig.contentDir, '..', '_backup_' + Math.floor(Math.random() * 1000));
+      if (importConfig.createBackupDir) {
+        cliux.print(`Warning!!! Provided createBackupDir is subdirectory.Cannot copy to a subdirectory of itself. New Backup directory path - ${backupDirPath}`, {
+          color: 'yellow',
+        });
+      }
+    } else {
+      //NOTE: If the backup folder's directory is provided, create it at that location; otherwise, the default path (working directory).
+      backupDirPath = path.join(process.cwd(), '_backup_' + Math.floor(Math.random() * 1000));
+      if (importConfig.createBackupDir) {
+        if (fileHelper.fileExistsSync(importConfig.createBackupDir)) {
+          fileHelper.removeDirSync(importConfig.createBackupDir);
+        }
+        fileHelper.makeDirectory(importConfig.createBackupDir);
+        backupDirPath = importConfig.createBackupDir;
       }
-      fileHelper.makeDirectory(importConfig.createBackupDir);
-      backupDirPath = importConfig.createBackupDir;
     }
 
-    const limit = importConfig.backupConcurrency || 16;
-    if (path.isAbsolute(importConfig.contentDir)) {
-      return ncp(importConfig.contentDir, backupDirPath, { limit }, (error) => {
-        if (error) {
-          return reject(error);
-        }
-        return resolve(backupDirPath);
-      });
-    } else {
-      ncp(importConfig.contentDir, backupDirPath, (error) => {
+    if (backupDirPath) {
+      return copy(importConfig.contentDir, backupDirPath, (error: any) => {
         if (error) {
           return reject(error);
         }
@@ -38,3 +43,19 @@ export default function setupBackupDir(importConfig: ImportConfig): Promise<stri
     }
   });
 }
+
+/**
+ * Check whether provided backup directory path is sub directory or not
+ * @param importConfig
+ * @returns
+ */
+function isSubDirectory(importConfig: ImportConfig) {
+  const parent = importConfig.contentDir;
+  const child = importConfig.createBackupDir ? importConfig.createBackupDir : process.cwd();
+  const relative = path.relative(parent, child);
+  if (relative) {
+    return relative && !relative.startsWith('..') && !path.isAbsolute(relative);
+  }
+  //true if both parent and child have same path
+  return true;
+}