Integrating Nunjucks with IntelliJ IDEA / Webstorm

Just found a solution. Configure a custom extension with Twig files. It's a template engine with similar syntax (but for PHP).

1. add Twig Support plugin if necessary

2. Go to Settings -> Editor -> File Types and add find Twig

3. Add the custom pattern *.njk.

Now all *.njk files are parsed as Twig so in the end you have support for Nunjucks.

Webstorm don't has build-in TWIG support. You need to manually download it from here: https://plugins.jetbrains.com/plugin/7303 then choose Preferences > Plugins > Install plugin from disk... and chose the file you just downloaded. Then follow FireCoding's solution. Worked perfectly for me in Webstorm 11.0.3