feat: add support for --spawn

Fixes #1245

README.md

@@ -71,7 +71,7 @@ nodemon was originally written to restart hanging processes such as web servers,
 
 ## Manual restarting
 
-Whilst nodemon is running, if you need to manually restart your application, instead of stopping and restart nodemon, you can simply type `rs` with a carriage return, and nodemon will restart your process.
+Whilst nodemon is running, if you need to manually restart your application, instead of stopping and restart nodemon, you can type `rs` with a carriage return, and nodemon will restart your process.
 
 ## Config files
 

doc/cli/options.txt

@@ -14,6 +14,7 @@ Execution
   --cwd <dir> .............. change into <dir> before running the script
   -e, --ext ................ extensions to look for, ie. "js,jade,hbs"
   -I, --no-stdin ........... nodemon passes stdin directly to child process
+  --spawn .................. force nodemon to use spawn (over fork) [node only]
   -x, --exec app ........... execute script with "app", ie. -x "python -v"
   -- <your args> ........... to tell nodemon stop slurping arguments
 

faq.md

@@ -4,7 +4,7 @@ This is being added to as common issues occur on the [issues](http://github.com/
 
 This is a working document, and if it makes sense, I'll take pull requests to help make it better.
 
-## nodemon doesn't work with my REPL
+# nodemon doesn't work with my REPL
 
 Create an nodemon.json file with the setting:
 
@@ -16,6 +16,10 @@ Create an nodemon.json file with the setting:
 
 This will leave the STDIN to your application rather than listening for the `rs` command to restart.
 
+# Strange/failing behaviour starting the (node-based) executable
+
+By default, nodemon will try to fork your node scripts ([background reading](https://github.com/remy/nodemon/issues/1025)), however, there are some edge cases where that won't suit your needs. Most of the time the default configuration should be fine, but if you want to force nodemon to spawn your node process, use the `--spawn` option.
+
 # My script arguments are being taken by nodemon
 
 Use the `--` switch to tell nodemon to ignore all arguments after this point. So to pass `-L` to your script instead of nodemon, use:

lib/cli/parse.js

@@ -117,6 +117,9 @@ function nodemonOption(options, arg, eatNext) {
     options.noUpdateNotifier = true;
   } else
 
+  if (arg === '--spawn') {
+    options.spawn = true;
+  } else
 
   if (arg === '--dump') {
     options.dump = true;

lib/monitor/run.js

@@ -66,6 +66,7 @@ function run(options) {
   const hasStdio = utils.satisfies('>= 6.4.0 || < 5');
 
   if (
+    !config.options.spawn &&
     firstArg.indexOf('-') === -1 && // don't fork if there's a node arg
     firstArg !== 'inspect' && // don't fork it's `inspect` debugger
     executable === 'node' && // only fork if node