go.testEnvFile: support export keyword

Support exported variables in environment files, e.g.

export BAR=foo

Author: sapenmsoft

extension/src/utils/envUtils.ts

@@ -31,14 +31,14 @@ export function parseEnvFile(envFilePath: string, globalVars?: NodeJS.Dict<strin
 	try {
 		const buffer = stripBOM(fs.readFileSync(envFilePath, 'utf8'));
 		buffer.split('\n').forEach((line) => {
-			const r = line.match(/^\s*([\w\.\-]+)\s*=\s*(.*)?\s*$/);
+			const r = line.match(/^\s*(export\s+)?([\w\.\-]+)\s*=\s*(.*)?\s*$/);
 			if (r !== null) {
-				let value = r[2] || '';
+				let value = r[3] || '';
 				if (value.length > 0 && value.charAt(0) === '"' && value.charAt(value.length - 1) === '"') {
 					value = value.replace(/\\n/gm, '\n');
 				}
 				const v = value.replace(/(^['"]|['"]$)/g, '');
-				env[r[1]] = substituteEnvVars(v, env, globalVars!);
+				env[r[2]] = substituteEnvVars(v, env, globalVars!);
 			}
 		});
 		return env;

extension/test/integration/goDebugConfiguration.test.ts

@@ -130,7 +130,7 @@ suite('Debug Environment Variable Merge Test', () => {
 	test('launchArgs.env overwrites launchArgs.envFile', () => {
 		const env = { SOMEVAR1: 'valueFromEnv' };
 		const envFile = path.join(tmpDir, 'env');
-		fs.writeFileSync(envFile, ['SOMEVAR1=valueFromEnvFile1', 'SOMEVAR2=valueFromEnvFile2'].join('\n'));
+		fs.writeFileSync(envFile, ['SOMEVAR1=valueFromEnvFile1', 'export SOMEVAR2=valueFromEnvFile2'].join('\n'));
 
 		runTest(
 			{ env, envFile },