Always ‘color’ with cargo build.

[jtomschroeder]

Always color cargo's output - #288

[fitzgen]

@alexcrichton could you review this PR? I'm unfamiliar with cargo's color and whether this fix is too heavy handed or what.

[alexcrichton]

Thanks for this! Unfortunately though this won't fix the issue for a number of use cases :(

While this will force cargo/rustc to turn on colors, because the output is still captured via a pipe it's always colored using ANSI escape codes. That means that Windows console users won't get colors but rather seemingly garbled text (as the escape codes are printed). Additionally on Unix if wasm-pack's output is piped to a file then colors should also be disabled.

This bug may be solved as well if #287 is implemented

[jtomschroeder]

Oh yeah, that makes sense. #287 would be great.

[ashleygwilliams]

@alexcrichton does this solve enough to be worth merging (i understand it won't solve everything, but how good of an improvement is it?)

[alexcrichton]

I would personally think no because this makes the compiler experience worse on Windows by accident

[ashleygwilliams]

ok- sorry @jtomschroeder - thank you so much for giving it a try, and please feel free to grab another "help wanted" issue <3