Introduce enhancements supporting the ZE FTP Copy feature

src/api/DataSetUtils.ts

@@ -159,6 +159,19 @@ export class DataSetUtils {
         await connection.allocateDataset(dsn, option.dcb);
     }
 
+    public static async allocateLikeDataSet(connection: any, dsn: string, like: string): Promise<void> {
+        this.log.debug("Allocate data set '%s' with similar attributes to '%s", dsn, like);
+        const files = await connection.listDataset(like);
+
+        this.log.debug("Found %d matching data sets", files.length);
+        if (files.length === 0) {
+            throw "No datasets found: " + like;
+        }
+        const option = files[0];
+        this.log.debug(JSON.stringify(option));
+        await connection.allocateDataset(dsn, option);
+    }
+
     private static get log(): Logger {
         return Logger.getAppLogger();
     }

src/cli/allocate/Allocate.definition.ts

@@ -11,14 +11,18 @@
 
 import { ICommandDefinition } from "@zowe/imperative";
 import { AllocateDataSetDefinition } from "./data-set/DataSet.definition";
+import { LikeDataSetDefinition } from "./like-data-set/LikeDataSet.definition";
 import { FTPConfig } from "../../api/FTPConfig";
 
 const AllocateDefinition: ICommandDefinition = {
     name: "allocate", aliases: ["alloc"],
     summary: "Allocate a sequential dataset or partitioned dataset with '--dcb \"PDSTYPE=PDS\"'",
     description: "Allocate a sequential or partitioned dataset",
     type: "group",
-    children: [AllocateDataSetDefinition],
+    children: [
+        AllocateDataSetDefinition,
+        LikeDataSetDefinition,
+    ],
     passOn: [
         {
             property: "options",

src/cli/allocate/like-data-set/LikeDataSet.Handler.ts

@@ -0,0 +1,28 @@
+/*
+ * This program and the accompanying materials are made available under the terms of the
+ * Eclipse Public License v2.0 which accompanies this distribution, and is available at
+ * https://www.eclipse.org/legal/epl-v20.html
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *
+ * Copyright Contributors to the Zowe Project.
+ *
+ */
+
+import { FTPBaseHandler } from "../../../FTPBase.Handler";
+import { IFTPHandlerParams } from "../../../IFTPHandlerParams";
+import { DataSetUtils } from "../../../api";
+
+export default class LikeDataSetHandler extends FTPBaseHandler {
+
+    public async processFTP(params: IFTPHandlerParams): Promise<void> {
+        const options = {
+            dcb: params.arguments.dcb
+        };
+        await DataSetUtils.allocateLikeDataSet(params.connection, params.arguments.datasetName, params.arguments.like);
+
+        const successMsg = params.response.console.log("Allocated dataset %s like %s successfully!", params.arguments.datasetName, params.arguments.like);
+        params.response.data.setMessage(successMsg);
+        this.log.info(successMsg);
+    }
+}

src/cli/allocate/like-data-set/LikeDataSet.definition.ts

@@ -0,0 +1,45 @@
+/*
+ * This program and the accompanying materials are made available under the terms of the
+ * Eclipse Public License v2.0 which accompanies this distribution, and is available at
+ * https://www.eclipse.org/legal/epl-v20.html
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *
+ * Copyright Contributors to the Zowe Project.
+ *
+ */
+
+import { ICommandDefinition } from "@zowe/imperative";
+
+
+export const LikeDataSetDefinition: ICommandDefinition = {
+    handler: __dirname + "/LikeDataSet.Handler",
+    description: "Allocate a dataset with the same attributes as another dataset",
+    type: "command",
+    name: "like-data-set", aliases: ["like", "lds"],
+    summary: "Allocate a dataset with similar attributes to another",
+    examples: [
+        {
+            description: "Allocate a dataset \"IBMUSER.NEW.DATASET\" " +
+            "with the same attributes as \"IBMUSER.ORIGINAL.DATASET\"",
+            options: "\"IBMUSER.NEW.DATASET\" --like \"IBMUSER.ORIGINAL.DATASET\""
+        }
+
+    ],
+    positionals: [{
+        name: "datasetName",
+        description: "The dataset name you'd like to allocate.",
+        type: "string",
+        required: true
+    }],
+    options: [
+        {
+            name: "like", aliases: [],
+            description: "Dataset name to copy the attributes from.",
+            required: true,
+            type: "string"
+        }
+    ],
+    profile:
+        {optional: ["zftp"]}
+};