This is what I get so far with my branch I linked above (https://github.com/twbs/bootstrap/tree/v4-dev-xmr-hugo):
C:\Users\xmr\Desktop\bootstrap>npm run docs-compile
> bootstrap@4.0.0-beta.2 docs-compile C:\Users\xmr\Desktop\bootstrap
> cd docs/ && hugo --config config.yml
ERROR 2017/10/23 18:37:36 Failed to add template "index.html" in path "C:\\Users\\xmr\\Desktop\\bootstrap\\docs\\layouts\\index.html": template: index.html:31: unexpected "<" in command
ERROR 2017/10/23 18:37:36 Failed to add template "partials/docs-navbar.html" in path "C:\\Users\\xmr\\Desktop\\bootstrap\\docs\\layouts\\partials\\docs-navbar.html": template: partials/docs-navbar.html:3: unexpected "<" in command
ERROR 2017/10/23 18:37:36 Failed to add template "partials/docs-sidebar.html" in path "C:\\Users\\xmr\\Desktop\\bootstrap\\docs\\layouts\\partials\\docs-sidebar.html": template: partials/docs-sidebar.html:4: unexpected "<" in command
ERROR 2017/10/23 18:37:36 index.html : template: index.html:31: unexpected "<" in command
ERROR 2017/10/23 18:37:36 partials/docs-navbar.html : template: partials/docs-navbar.html:3: unexpected "<" in command
ERROR 2017/10/23 18:37:36 partials/docs-sidebar.html : template: partials/docs-sidebar.html:4: unexpected "<" in command
Started building sites ...
ERROR 2017/10/23 18:37:37 Error while rendering "page": template: _default/docs.html:13:7: executing "_default/docs.html" at <partial "docs-navbar...>: error calling partial: template: "partials/docs-navbar.html" is an incomplete or empty template
npm ERR! code ELIFECYCLE
npm ERR! errno 4294967295
npm ERR! bootstrap@4.0.0-beta.2 docs-compile: `cd docs/ && hugo --config config.yml`
npm ERR! Exit status 4294967295
npm ERR!
npm ERR! Failed at the bootstrap@4.0.0-beta.2 docs-compile script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\xmr\AppData\Roaming\npm-cache\_logs\2017-10-23T15_37_37_269Z-debug.log
docs-sidebar.html isn’t converted yet, but the above errors come from using a shortcode in html. For example:
{{< svg src="import.svg" width="32" height="32" class="text-primary mb-2" >}}
Note that I might be doing something obviously wrong, so I’d try to have a look later after I take a break.
As for the extra static files include, I will make a new GitHub issue, thanks.