remove copyright lines

[steveklabnik]

If these are useless, as @brson says #9070 (comment), we should just remove them.

Fixes #9070.

[rust-highfive]

r? @alexcrichton

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[alexcrichton]

I'm not sure this is quite what @brson meant, but I'll let him chime in!

r? @brson

[steveklabnik]

Maybe not, but it wasn't a big deal to sed. 😄

[Gankra]

So beautiful. ;_;

[kmcallister]

whoops. There are a few more of these.

[steveklabnik]

I thought I went back in and manually fixed all of them. :(

[iKevinY]

Never mind; for some reason, I completely forgot that PRs can be merged simultaneously without breaking Travis. Resubmitted my fix as a PR against this repository.

[steveklabnik]

@iKevinY you can also submit a PR to my PR

[iKevinY]

@steveklabnik Heh, I did that initially but then figured it was an unorthodox way of doing things. I've reopened my PR on your fork.

[brson]

I would want to consult with @gerv before doing this. Although I believe my comment accurately represents what I've been told by our resident license experts, those same people also told us what to write in our license block. I will ping him.

[frewsxcv]

Why are these lines being removed? It's what the Apache license explicitly says to add to each source file

[gerv]

You can't remove them.

They are indeed legally near-useless; however, several licenses (which, I believe, include the ones Rust is using) require that they be preserved if they are present. E.g Apache License 2.0, section 4 c):

"You must retain, in the Source form of any Derivative Works that You distribute, all copyright, patent, trademark, and attribution notices from the Source form of the Work, excluding those notices that do not pertain to any part of the Derivative Works"

So unless you get the permission of all copyright holders, I'm afraid you are stuck with them :-(

Gerv

[Gankra]

That sucks :(

Thanks for clarifying!

[gerv]

Yeah, sorry :-(

[kmcallister]

Should we at least stop putting it in new files? >__>

[Gankra]

@brson has stated we can at least not increment any of the dates.

[frewsxcv]

It might be okay to get rid of this text though? It's not explicitly mandated by Apache

See the COPYRIGHT file at the top-level directory of this distribution and at http://rust-lang.org/COPYRIGHT.

EDIT: I didn't mean to press send on this, disregard

[gerv]

Yes, you could certainly not bother to increment the dates, and you could probably remove the "See the COPYRIGHT file" text if you thought it was unnecessary. But consistency is useful. That's the reason why it's probably not a good idea to stop putting a copyright line in the header on new files. The standard Apache boilerplate has a copyright line; if you want friction-free "Ah, it's Apache, I understand that" use, it's best to use the standard boilerplate.