Relicense all shootout benchmarks to use their preferred license

[brson]

The shootout will only accept code that is under a particular variation of the BSD license. We are the authoritative source for this code at the moment, but it's under the Rust license. We can't participate in the shootout on an equal footing without using the proper license.

For each benchmark, either contact all the authors and get written permission to relicense, or just rewrite it; put the correct license on the files and add them as exceptions to licenseck.py.

Have statements from

• alexcrichton
• SimonSapin
• pcwalton
• edwardw
• kimundi
• TeXitoi
• erickt
• Thiez
• Kevin Butler
• BurntSushi (Andrew Gallant)

[thestinger]

Here's the specific license: http://benchmarksgame.alioth.debian.org/license.php

It actually looks like a three-clause BSD license with the advertising/promotion clause included.

[brson]

Ah, yeah, not two-clause BSD.

[brson]

Updated OP to reflect that this is not "two-clause" BSD.

[Thiez]

I've touched some of that code a long time ago, not sure if I changed enough to qualify as 'author', but if I have, I hereby grant permission to relicense my stuff to whatever is the required version of the BSD-license.

[TeXitoi]

I rewrited or modified almost every benchmark. I grant permission to relicense my contributions to the shootout license. (Even under the WTFPLv2 if anyone want)

[brson]

I've updated the op with the list of people from whom I have statements on file.

[brson]

For those interested in helping with this, this is the statement I've asked the stragglers in #14420 to email me:

I agree to relicense any previous contributions to http://github.com/mozilla/rust according to the following terms:

// The Computer Language Benchmarks Game
// http://benchmarksgame.alioth.debian.org/
// contributed by the Rust Project Developers

// Copyright (c) 2013-2014 The Rust Project Developers
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
//
// - Redistributions of source code must retain the above copyright
//   notice, this list of conditions and the following disclaimer.
//
// - Redistributions in binary form must reproduce the above copyright
//   notice, this list of conditions and the following disclaimer in
//   the documentation and/or other materials provided with the
//   distribution.
//
// - Neither the name of "The Computer Language Benchmarks Game" nor
//   the name of "The Computer Language Shootout Benchmarks" nor the
//   names of its contributors may be used to endorse or promote
//   products derived from this software without specific prior
//   written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
// OF THE POSSIBILITY OF SUCH DAMAGE.

[BurntSushi]

I agree to re-license my contributions under the license above.

I sent mail to @brson a couple days ago. My name (Andrew Gallant) appears in the first comment. :)

[kud1ing]

http://benchmarksgame.alioth.debian.org/u64q/rust.php seem to have switched to Rust 0.11 but do not show results yet. Do they need to be pinged about the license changes or does it just take time?

[TeXitoi]

@kud1ing I think I've seen somewhere that they want we propose our programs using the official procedure.

[kud1ing]

I've opened #15408 for this.

[tedhorst]

I agree to relicense any previous contributions to http://github.com/mozilla/rust according to the term of the Computer Language Benchmarks Game license (http://benchmarksgame.alioth.debian.org/license.php)

[killerswan]

I'm not on your list above, but since I wrote the first versions of a couple of these benchmarks, I, too, agree to relicense my contributions to the benchmarks under src/test/bench/ according to the term of the Computer Language Benchmarks Game license (http://benchmarksgame.alioth.debian.org/license.php).

[TeXitoi]

This issue seems completed, as every src/test/bench/shootout-*.rs are relicensed except:

• shootout-ackermann.rs: obsolete shootout bench
• shootout-fibo.rs: obsolete shootout bench
• shootout-k-nucleotide-pipes.rs: slower that shootout-k-nucleotide.rs (and not so interesting as a benchmark)
• shootout-pfib.rs: does not seems related to the shootout

OK to close?

[huonw]

shootout-k-nucleotide-pipes.rs: slower that shootout-k-nucleotide-pipes.rs (and not so interesting as a benchmark)

Is one of these meant to be shootout-k-nucleotide.rs?

[TeXitoi]

oups, typo, corrected in the comment. shootout-k-nucleotide-pipe.rs is supposed to do the same thing as shootout-k-nucleotide.rs, with a task for each k, copying strings readed on stdin. Thus, it is extremelly inefficient.

[alexcrichton]

Awesome work, thanks for taking the charge on this @TeXitoi!

[killerswan]

@TeXitoi I wrote shootout-k-nucleotide.rs, and then somebody ported it to the pipes interface which I'm not sure the status of anymore. At one point I believe the pipes version was actually faster, but no idea now.