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copied!<p>One approach would be to, in your build system, first kill the running node process & if that's not successful pass the current file to node. So your node.sublime-build might look like this:</p> <pre><code>{ "cmd": [ "killall node || node \"$file\"" ], "file_regex": "^[ ]*File \"(...*?)\", line ([0-9]*)", "selector": "source.js", "shell": true } </code></pre> <p>Sublime only allows one command which is passed multiple arguments, so something like <code>"cmd": [ "killall node ||", "node", "$file"]</code> wasn't working, though I think it worked previously in Sublime 2. Thus the need to wrap <code>$file</code> in escaped quotes, because otherwise the command will fail if the path to <code>$file</code> has a space in it. Also, <code>||</code> is pivotal here, because <code>killall</code> exits with a status of 1 (error) if there were no processes to kill, so the first time it will run node but the second time it won't.</p> <p>Note that, since we're working in the shell here, this is platform-specific. I don't know how to do the equivalent of <code>||</code> on Windows, but you'd just need something like this:</p> <pre><code>{ "cmd": [ "killall node || node \"$file\"" ], "file_regex": "^[ ]*File \"(...*?)\", line ([0-9]*)", "selector": "source.js", "shell": true "windows": { "cmd": [ "insert whatever works here..." ] } } </code></pre> <p>One big limitation is that this kills all running node processes; that'd be annoying if you want to keep something running in the background. If someone knows how to target a specific node process in a single command, please add to my answer.</p> <p>Secondly, you could wrap the cmd in a bash script, which would make it easier to do multiple things like kill a particular process. Then the cmd array would be <code>[ "bash", "name-of-script.sh" ]</code>. Using <code>lsof</code> it would be rather easy to get the particular node process that's running your current file. You could also use <code>bash -c</code> as the command and then paste a whole script into the second element of the cmd array.</p> <p>Hope that helps. I'm missing one piece of your requirement: <code>ESC</code> will still be needed to close the build window. Not sure what else can be done there without writing a Sublime plug-in.</p>

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