extension.js

// The module 'vscode' contains the VS Code extensibility API
// Import the module and reference it with the alias vscode in your code below
const vscode = require('vscode');
const path = require('path');
var ncp = require("copy-paste");

// this method is called when your extension is activated
// your extension is activated the very first time the command is executed

/**
 * @param {vscode.ExtensionContext} context
 */
function activate(context) {
	let runIt = vscode.commands.registerCommand('make-runner.runIt', async function () {
		let editor = vscode.window.activeTextEditor;
		if (editor) {
			const filename = editor.document.fileName.split('/').pop()
			if (filename.toLocaleLowerCase() !== 'makefile') {
				return
			}
			const config = vscode.workspace.getConfiguration().get('make-runner').env;;
			const envs = Object.keys(config);

			let env = {};
			if (envs.length !== 0) {
				const selection = await vscode.window.showQuickPick(envs);
				if (!selection) {
					return
				}
				env = config[selection];
			}

			if (typeof env !== 'object') {
				vscode.window.showErrorMessage('Make Runner config set properly.');
				return;
			}

			const exp = Object.keys(env).map(key => `${key}=${env[key]}`).join(' ');
			const line = editor.selection.active.line;
			const command = editor.document.lineAt(line).text.split(":")[0];
			let terminal = vscode.window.activeTerminal;
			if (!terminal) {
				terminal = await vscode.window.createTerminal();
			}
			terminal.show();
			terminal.sendText(`${exp} make -C ${path.dirname(editor.document.fileName)} ${command}`)
		}
	});

	let copyIt = vscode.commands.registerCommand('make-runner.copyIt', async function () {
		let editor = vscode.window.activeTextEditor;
		if (editor) {
			const filename = editor.document.fileName.split('/').pop()
			if (filename.toLocaleLowerCase() !== 'makefile') {
				return
			}
			const config = vscode.workspace.getConfiguration().get('make-runner').env;
			const envs = Object.keys(config);

			let env = {};
			if (envs.length !== 0) {
				const selection = await vscode.window.showQuickPick(envs);
				if (!selection) {
					return
				}
				env = config[selection];
			}

			if (typeof env !== 'object') {
				vscode.window.showErrorMessage('Make Runner config set properly.');
				return;
			}

			const exp = Object.keys(env).map(key => `${key}=${env[key]}`).join(' ');
			const line = editor.selection.active.line;
			const command = editor.document.lineAt(line).text.split(":")[0];
			ncp.copy(`${exp} make -C ${path.dirname(editor.document.fileName)} ${command}`, function () {
				console.log('copy completed')
			})
		}
	});

	context.subscriptions.push(copyIt, runIt);
}
exports.activate = activate;

// this method is called when your extension is deactivated
function deactivate() { }

module.exports = {
	activate,
	deactivate
}