VS15 Preview 5: --outFile option now includes normal JS files

[saschanaz]

TypeScript Version: 2.0.5.0, the version embedded on VS15 Preview 5

Repro file:

https://github.com/SaschaNaz/TSFileInclusionRepro/

Repro steps:

Add some change to ts/foo.ts to generate js/app.js automatically. For example, add class Foo3 {}.

Expected behavior:

Compiler should include TS files only

Actual behavior:

class Foo {
}
class Foo2 {
}
// Your code here!
var mainjs = "mainjs";
var somemodule = "somemodule";

Why are you including JS files on your project?:

Because they will be excluded from app package if I don't.

Why do you bother?

Because TS tries to parse my emscripten-compiled JS file and even WinJS libraries and thus slows down everything.

[saschanaz]

CC: @paulvanbrenk

#11623 is not easy to repro (as it randomly happens time-wise) but I have succeeded making a repro small enough for this one.

[mhegazy]

@zhenboli, this looks like the same root cause as #11649. we need some general solution here for external projects with both js and ts files

[saschanaz]

@mhegazy tagging zhengbli or zhenboli...?

[paulvanbrenk]

Because they will be excluded from app package if I don't.

This is also a problem, we should include generated js files automatically.

[saschanaz]

TS-generated JS files are automatically included. Normal JS files are not.

[mhegazy]

@saschanaz, have you tried adding a tsconfig.json file?

[saschanaz]

Can I try the fix on VS15 Preview 5? I tried this NuGet guide to get it but I still getting the same result.

This is my change: saschanaz/TSFileInclusionRepro@cf7ba0b

[mhegazy]

The fix is not included in the nuget package. It should be in a future release of VS "15".

A tsconfig should avoid the issue though.