CLI on Windows doesn't accept -f - for stdin?

[malcolmr]

Over at google/vim-codefmt#111, we've had a report that our js-beautify integration doesn't work on Windows.

In this case, we're invoking js-beautify -f - --type js and expecting to be able to use it as a filter from stdin to stdout, but it looks like the user is getting an error message of the form 'Unable to open path "/Users/.../node_modules/npm/-"'.

This sounds like it might be the same problem as #390, but perhaps only for Windows?

[bitwiseman]

@lsff @malcolmr
What version of js-beautify do you have installed?

[bitwiseman]

Hm, we have Windows in our CI system and the tests around stdin cover a lot of cases :
https://github.com/beautify-web/js-beautify/blob/master/js/test/shell-test.sh#L120

But that specific one is not in there.

[jvargas]

The problem is also present on MacOS 10.14.1 and probably in other operating systems. It is impacting the related emacs package web-beautify, see yasuyk/web-beautify#38

[bitwiseman]

@jvargas Thanks for that info that will help with testing and fixing.

[bitwiseman]

@jvargas @malcolmr
Please test this fix by installing 1.8.10-beta2.

[malcolmr]

I don't actually use js-beautify. @lsff may be able to help verify the fix as they were the original reporter of google/vim-codefmt#111.