requiring elmi-to-json is slow on Windows

[showell]

Even if I just run elm-test --help, it take 3.5s on my relatively powerful Windows laptop to run that in a git bash shell.

I am not sure what I'm doing wrong, or if elm-test is just heavy like that.

If there isn't any easy way to speed this up, could it at least be documented as a known issue in the readme?

[showell]

This line is particularly slow (930ms on a fast, healthy Windows laptop with a current version of node):

var readElmiPath = require('elmi-to-json').paths['elmi-to-json'];

[razzeee]

Updating elmi-to-json to the latest version 1.2.0 should presumably help with this https://github.com/stoeffel/elmi-to-json/releases

But I can't get the tests to pass after that.

[razzeee]

Was done in 7ac6505 and should be in the next release

[rtfeldman]

@showell are you still seeing this in the current release, or can we close this?

[showell]

My issues were never resolved. There's a thread here: https://elmlang.slack.com/archives/C0CLGCMMF/p1573296606141400

We figured out that it was Windows-specific issues.

[lydell]

@showell Would you mind trying out #442 and see if it’s faster for you?

You can install with npm i -D lydell/node-test-runner#js.

Note that the duration in elm-test’s output is just for the test execution, not the compilation before that.

[showell]

@lydell Sorry I can't help--I haven't been active in Elm lately, due to my day job.

[harrysarson]

I am happy to close this now. We no longer require elmi-to-json (on any OS which includes windows) so it cannot be slow. If anyone has any perf issues with the new approach (not yet released, will be version 0.19.1-revison5) please open a new issue :)