Machine Learning Services R Packages (#8870)

* R Package management in Machine learning services extension

extensions/machine-learning-services/src/configurations/config.json

@@ -0,0 +1,11 @@
+{
+	"requiredPythonPackages": [
+		{ "name": "pymssql", "version": "2.1.4" },
+		{ "name": "sqlmlutils", "version": ""}
+	],
+
+	"requiredRPackages": [
+		{ "name": "RODBCext", "repository": "https://cran.microsoft.com" },
+		{ "name": "sqlmlutils", "fileName": "sqlmlutils_0.7.1.zip", "downloadUrl": "https://github.com/microsoft/sqlmlutils/blob/master/R/dist/sqlmlutils_0.7.1.zip?raw=true"}
+	]
+}

extensions/machine-learning-services/src/configurations/config.ts

@@ -0,0 +1,71 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the Source EULA. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import * as vscode from 'vscode';
+import { ApiWrapper } from '../common/apiWrapper';
+import * as constants from '../common/constants';
+import { promises as fs } from 'fs';
+import * as path from 'path';
+import { PackageConfigModel } from './packageConfigModel';
+
+const configFileName = 'config.json';
+const defaultPythonExecutable = 'python';
+const defaultRExecutable = 'r';
+
+
+/**
+ * Extension Configuration from app settings
+ */
+export class Config {
+
+	private _configValues: any;
+	private _mlsConfig: vscode.WorkspaceConfiguration | undefined;
+
+	constructor(private _root: string, private _apiWrapper: ApiWrapper) {
+	}
+
+	/**
+	 * Loads the config values
+	 */
+	public async load(): Promise<void> {
+		const rawConfig = await fs.readFile(path.join(this._root, 'src', 'configurations', configFileName));
+		this._configValues = JSON.parse(rawConfig.toString());
+	}
+
+	/**
+	 * Returns the config value of required python packages
+	 */
+	public get requiredPythonPackages(): PackageConfigModel[] {
+		return this._configValues.requiredPythonPackages;
+	}
+
+	/**
+	 * Returns the config value of required r packages
+	 */
+	public get requiredRPackages(): PackageConfigModel[] {
+		return this._configValues.requiredRPackages;
+	}
+
+	/**
+	 * Returns python path from user settings
+	 */
+	public get pythonExecutable(): string {
+		return this.config.get(constants.pythonPathConfigKey) || defaultPythonExecutable;
+	}
+
+	/**
+	 * Returns r path from user settings
+	 */
+	public get rExecutable(): string {
+		return this.config.get(constants.rPathConfigKey) || defaultRExecutable;
+	}
+
+	private get config(): vscode.WorkspaceConfiguration {
+		if (!this._mlsConfig) {
+			this._mlsConfig = this._apiWrapper.getConfiguration(constants.mlsConfigKey);
+		}
+		return this._mlsConfig;
+	}
+}

extensions/machine-learning-services/src/configurations/packageConfigModel.ts

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+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the Source EULA. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+/**
+ * The model for package config value
+ */
+export interface PackageConfigModel {
+
+	/**
+	 * Package name
+	 */
+	name: string;
+
+	/**
+	 * Package version
+	 */
+	version?: string;
+
+	/**
+	 * Package repository
+	 */
+	repository?: string;
+
+	/**
+	 * Package download url
+	 */
+	downloadUrl?: string;
+
+	/**
+	 * Package file name if package has download url
+	 */
+	fileName?: string;
+}