fix(process): terminate child processes on SIGINT and SIGTERM

#2

src/handleKillProcess/index.js

@@ -0,0 +1,22 @@
+'use strict';
+const resolve = require('../resolve');
+const cmdStop = require('../cmdStop');
+
+/**
+ * @param {Object} di - dependency injection
+ * @returns {void}
+ **/
+function handleKillProcess({ _process, _cmdStop }) {
+	const handleKill = () => _cmdStop(undefined, _process.exit);
+
+	// catch ctrl-c
+	_process.on('SIGINT', handleKill);
+	// catch kill
+	_process.on('SIGTERM', handleKill);
+}
+
+module.exports = resolve(handleKillProcess, {
+	process,
+	cmdStop,
+});
+module.exports.handleKillProcess = handleKillProcess;

src/handleKillProcess/index.spec.js

@@ -0,0 +1,58 @@
+const resolve = require('../resolve');
+const handleKillProcess = require('./index');
+
+const _getProcess = cmd => ({
+	on(type, cb) {
+		if (type === cmd) {
+			cb();
+		}
+	},
+});
+
+describe('handleKillProcess', () => {
+	it('cmdStop on SIGINT', done => {
+		resolve(handleKillProcess, {
+			cmdStop() {
+				done();
+			},
+			process: _getProcess('SIGINT'),
+			exit() {},
+		})();
+	});
+	it('cmdStop on SIGTERM', done => {
+		resolve(handleKillProcess, {
+			cmdStop() {
+				done();
+			},
+			process: _getProcess('SIGTERM'),
+			exit() {},
+		})();
+	});
+
+	it('run process.exit on SIGINT', done => {
+		resolve(handleKillProcess, {
+			cmdStop(packageName, cb) {
+				expect(packageName).toBe(undefined);
+				cb();
+			},
+			process: Object.assign({}, _getProcess('SIGINT'), {
+				exit() {
+					done();
+				},
+			}),
+		})();
+	});
+	it('run process.exit on SIGTERM', done => {
+		resolve(handleKillProcess, {
+			cmdStop(packageName, cb) {
+				expect(packageName).toBe(undefined);
+				cb();
+			},
+			process: Object.assign({}, _getProcess('SIGTERM'), {
+				exit() {
+					done();
+				},
+			}),
+		})();
+	});
+});

src/index.js

@@ -14,9 +14,11 @@ const commandListener = require('./commandListener');
 const runNpmScripts = require('./runNpmScripts');
 const render = require('./render');
 const executeCmd = require('./executeCmd');
+const handleKillProcess = require('./handleKillProcess');
 
 runCommander();
 provideStore();
 runNpmScripts();
 resizeListener(render);
 commandListener(executeCmd);
+handleKillProcess();