feat: add support for customisable signal

lib/config/index.js

@@ -31,6 +31,7 @@ var config = {
   dirs: [],
   timeout: 1000,
   options: {},
+  signal: 'SIGUSR2',
 };
 
 /**
@@ -58,6 +59,9 @@ config.load = function (settings, ready) {
     }
 
     config.watchInterval = options.watchInterval || null;
+    if (options['signal']) { // jshint ignore:line
+      config.signal = options.signal;
+    }
 
     var cmd = command(config.options);
     config.command = {
@@ -83,4 +87,4 @@ config.load = function (settings, ready) {
 
 config.reset = reset;
 
-module.exports = config;
+module.exports = config;

lib/monitor/run.js

@@ -130,20 +130,20 @@ function run(options) {
     // In case we killed the app ourselves, set the signal thusly
     if (killedAfterChange) {
       killedAfterChange = false;
-      signal = 'SIGUSR2';
+      signal = config.signal;
     }
     // this is nasty, but it gives it windows support
     if (utils.isWindows && signal === 'SIGTERM') {
-      signal = 'SIGUSR2';
+      signal = config.signal;
     }
 
-    if (signal === 'SIGUSR2' || code === 0) {
+    if (signal === config.signal || code === 0) {
       // this was a clean exit, so emit exit, rather than crash
-      debug('bus.emit(exit) via SIGUSR2');
+      debug('bus.emit(exit) via ' + config.signal);
       bus.emit('exit');
 
       // exit the monitor, but do it gracefully
-      if (signal === 'SIGUSR2') {
+      if (signal === config.signal) {
         return restart();
       } else if (code === 0) { // clean exit - wait until file change to restart
         if (runCmd) {
@@ -201,7 +201,7 @@ function run(options) {
       /* Now kill the entire subtree of processes belonging to nodemon */
       var oldPid = child.pid;
       if (child) {
-        kill(child, 'SIGUSR2', function () {
+        kill(child, config.signal, function () {
           // this seems to fix the 0.11.x issue with the "rs" restart command,
           // though I'm unsure why. it seems like more data is streamed in to
           // stdin after we close.
@@ -267,7 +267,7 @@ function kill(child, signal, callback) {
       // spawning processes like `coffee` under the `--debug` flag, it'll spawn
       // it's own child, and that can't be killed by nodemon, so psTree gives us
       //  an array of PIDs that have spawned under nodemon, and we send each the
-      //   SIGUSR2 signal, which fixes #335
+      //   configured signal (defaul: SIGUSR2) signal, which fixes #335
       psTree(child.pid, function (err, kids) {
         spawn('kill', ['-s', signal, child.pid].concat(kids.map(function (p) {
           return p.PID;