export function check()

in src/goCheck.ts [59:152]
77 lines of code
18 McCabe index (conditional complexity)

export function check(
	goCtx: GoExtensionContext,
	fileUri: vscode.Uri,
	goConfig: vscode.WorkspaceConfiguration
): Promise<IToolCheckResults[]> {
	diagnosticsStatusBarItem.hide();
	outputChannel.clear();
	const runningToolsPromises = [];
	const cwd = path.dirname(fileUri.fsPath);

	// If a user has enabled diagnostics via a language server,
	// then we disable running build or vet to avoid duplicate errors and warnings.
	const lspConfig = buildLanguageServerConfig(goConfig);
	const disableBuildAndVet = lspConfig.enabled;

	let testPromise: Thenable<boolean>;
	const testConfig: TestConfig = {
		goConfig,
		dir: cwd,
		flags: getTestFlags(goConfig),
		background: true,
		applyCodeCoverage: !!goConfig['coverOnSave']
	};

	const runTest = () => {
		if (testPromise) {
			return testPromise;
		}

		testPromise = isModSupported(fileUri).then((isMod) => {
			testConfig.isMod = isMod;
			return goTest(testConfig);
		});
		return testPromise;
	};

	const { buildDiagnosticCollection, lintDiagnosticCollection, vetDiagnosticCollection } = goCtx;
	if (
		buildDiagnosticCollection &&
		!disableBuildAndVet &&
		!!goConfig['buildOnSave'] &&
		goConfig['buildOnSave'] !== 'off'
	) {
		runningToolsPromises.push(
			isModSupported(fileUri)
				.then((isMod) => goBuild(fileUri, isMod, goConfig, goConfig['buildOnSave'] === 'workspace'))
				.then((errors) => ({ diagnosticCollection: buildDiagnosticCollection, errors }))
		);
	}

	if (goConfig['testOnSave']) {
		statusBarItem.show();
		statusBarItem.text = 'Tests Running';
		runTest().then((success) => {
			if (statusBarItem.text === '') {
				return;
			}
			if (success) {
				statusBarItem.text = 'Tests Passed';
			} else {
				statusBarItem.text = 'Tests Failed';
			}
		});
	}

	if (lintDiagnosticCollection && !!goConfig['lintOnSave'] && goConfig['lintOnSave'] !== 'off') {
		const goplsConfig = getGoplsConfig(fileUri);
		runningToolsPromises.push(
			goLint(fileUri, goConfig, goplsConfig, goConfig['lintOnSave']).then((errors) => ({
				diagnosticCollection: lintDiagnosticCollection,
				errors
			}))
		);
	}

	if (vetDiagnosticCollection && !disableBuildAndVet && !!goConfig['vetOnSave'] && goConfig['vetOnSave'] !== 'off') {
		runningToolsPromises.push(
			goVet(fileUri, goConfig, goConfig['vetOnSave'] === 'workspace').then((errors) => ({
				diagnosticCollection: vetDiagnosticCollection,
				errors
			}))
		);
	}

	if (goConfig['coverOnSave']) {
		runTest().then((success) => {
			if (!success) {
				return [];
			}
		});
	}

	return Promise.all(runningToolsPromises);
}