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KernelTrap: BitKeeper Is A Commercial Product?

Oct 07, 2002, 13:00 (35 Talkback[s])

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There have been numerous flame wars and discussions on the lkml regarding the use of BitKeeper in Linux kernel development. During one of these earlier wars, Linux creator Linus Torvalds explained his position, "Would I prefer to use a tool that didn't have any restrictions on it for kernel maintenance? Yes. But since no such tool exists, and since I'm personally not very interested in writing one, _and_ since I don't have any hangups about using the right tool for the job, I use BitKeeper."

"BitKeeper is a source management tool provided under any of three licenses, one of which--the BKL--can make BitKeeper available for free (as in free beer). Tom Gall posted a question to the lkml when he noticed a clause in the BKL intended to prevent an individual or organization from using BitKeeper under this free license if they or their employer develops, produces, sells or resells a competing product. Yet another lengthy discussion followed.

"Some contributers to this discussion seem to overlook two simple facts: First, that BitKeeper is also available under commercial (non-free) licensing, and second, that BitKeeper is and always has been primarily a commercial product (hence the sarcastic title of this article). Granted, the wording of any legal verbiage is open to interpretation, but as BitMover founder Larry McVoy has publicly interpreted this clause as "if you make or sell a competing product, you don't get to use ours for free", there seems little risk it can be used to attain other ends. In any case, for now Linus and many other Linux kernel developers have chosen to utilize BitKeeper in their efforts, and it is still possible to view the latest code (within 3 hours) without using BitKeeper via archives such as this one set up by Rik van Riel.

"That said, there are many interesting points raised during this discussion. Read on for the full thread..."

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