Forwards SIGTERM signals

Author: arcanis

src/cli/index.js

@@ -638,6 +638,8 @@ async function start(): Promise<void> {
       // innermost process, whose end will cause our own to exit.
     });
 
+    handleSignals();
+
     try {
       if (/\.[cm]?js$/.test(yarnPath)) {
         exitCode = await spawnp(process.execPath, [yarnPath, ...argv], opts);

src/util/child.js

@@ -16,8 +16,10 @@ let uid = 0;
 export const exec = promisify(child.exec);
 
 export function forkp(program: string, args: Array<string>, opts?: Object): Promise<number> {
+  const key = String(++uid);
   return new Promise((resolve, reject) => {
     const proc = child.fork(program, args, opts);
+    spawnedProcesses[key] = proc;
 
     proc.on('error', error => {
       reject(error);
@@ -30,8 +32,10 @@ export function forkp(program: string, args: Array<string>, opts?: Object): Prom
 }
 
 export function spawnp(program: string, args: Array<string>, opts?: Object): Promise<number> {
+  const key = String(++uid);
   return new Promise((resolve, reject) => {
     const proc = child.spawn(program, args, opts);
+    spawnedProcesses[key] = proc;
 
     proc.on('error', error => {
       reject(error);