Add Travis Windows build

[phansch]

This adds the Windows build to Travis.

I had to use the dos2unix utility on the parser directory to fix some incorrect
line endings. I'm not sure where they are coming from but I guess git is
converting them automatically when cloning on Windows.

Closes #139

[phansch]

I should mention that the windows build takes about 14 minutes because installing rust-docs via rustup is really slow on windows.

[matklad]

because installing rust-docs via rustup is really slow on windows.

Can we somehow tell rustup not to download docs?

[phansch]

It's not possible, yet. I can't find the most recent discussion right now, but it's being tracked in rustup: rust-lang/rustup#906.

edit: This is more recent: rust-lang/rustup#998

[matklad]

Hm, I think a good idea then is to run windows build only on the master branch, and not gate CI on windows build.

And I think we might remove appveyour.yml and the badge from readme?

[phansch]

Should be ready now. I moved the windows build to allow_failure, which means master will be green once the rust linux and npm tests have passed.

Not sure why it is still showing the status for AppVeyor on cb659cd, maybe it has to be merged first.

[phansch]

Ok, looks like AppVeyor picked up on the missing appveyor.yml and fails accordingly 😆

The build phase is set to "MSBuild" mode (default), but no Visual Studio project or solution files were found in the root directory.

[matklad]

Hm, will it actually include this in the test matrix? Let's see I guess :)

[matklad]

bors r+

Thanks!

[bors]

Build succeeded

• continuous-integration/travis-ci/push

[matklad]

Hm, it doesn't actually build windows on master:

Perhaps we need to add something like

 - os: windows
 - branch: master

to the matrix?

[CAD97]

Yep, you'll need to keep the build job in the matrix.include. The same formulation as in the allow_failures should work:

- os: windows
  if: branch = master

Then I'd change allow_failures to just be

- os: windows