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    SubjectRe: openbkweb-0.0
    If people start using this against the bkbits.net server, we'll be
    forced to shut down http access. We can't afford the bandwidth costs,
    we get charged per byte after a certain amount.

    I'm not saying this new code isn't the most wonderful thing since sliced
    bread, I'm saying that programatic access to the http servers on bkbits is
    absolutely not supported and excessive bandwidth means we shut that down.

    Sorry, but getting at the data this way is very bandwidth intensive and
    we can't pay for it. If you use BK to get the data it is easily 1/1000th
    of the amount of bandwidth these scripts use. If someone wants to foot
    the bandwidth bill, it is currently $950/month.

    --lm

    On Thu, Feb 06, 2003 at 03:10:29AM +0100, Andrea Arcangeli wrote:
    > Hello,
    >
    > In a few words: I prefer to spend time coding than in endless flamewars
    > on l-k, and I suggest everybody to do the same and to rather spend time
    > reading and contributing the code than in answerng this email unless
    > you've something technical to suggest of course ;)
    >
    > If you're interested in checking out from the bitkeeper servers with an
    > open source program (GPLv2 actually) you can do/try it now (almost, see
    > below for the last trouble that I just discussed today on l-k).
    >
    > http://www.us.kernel.org/pub/linux/kernel/people/andrea/openbkweb/openbkweb-0.0.tar.gz
    >
    > I should thanks Aaron Swartz, since I included a GPLv2 html2text python
    > library for him (google found it) that makes it trivial to extract the
    > data.
    >
    > For example to checkout bk head starting from a 2.5.59 tarball on
    > kernel.org the command is:
    >
    > mkdir 2.5-pickle
    > python bkweb.py -u http://linux.bkbits.net:8080/linux-2.5 --rev=1.947.3.4 -t linux-2.5.59 -c 2.5-pickle
    >
    > The number 1.947.3.4 cames from this webpage:
    >
    > http://linux.bkbits.net:8080/linux-2.5/ChangeSet@-4w?nav=index.html
    >
    > you'll see that 1.947.3.4 matches the release number 2.5.59. The number
    > 1.947.3.4 tells bkweb to apply all the changesets from 1.947.3.5 to the
    > last one. So it's really simple.
    >
    > bkweb will fetch the data, will save it in the cache directory
    > (2.5-pickle) and it will apply it to the linux-2.5.59 directory.
    >
    > Unfortunately it doesn't work reliably when Linus merges old changesets,
    > the logic will be confused. The current logic thinks all changesets can
    > be applied in order.
    >
    > the problem is that to generate bk head it may have to apply also some
    > changeset in the past, not only between 2.5.59 to the last one in
    > cronological order. That still needs a solution. One solution could be
    > also that nobody should send bk pull to Linus anymore, if everybody
    > sends patches it won't risk to reject anymore ;) but I doubt it's an
    > acceptable one for everybody, I assume somebody is confortable with it, if
    > they're using it right now. I also suspect it will be necessary to use a
    > different numbering and not to use the bk changeset numbers as index. The
    > object is to never have to rebuild the database. Currently I don't even
    > store persistent the ordering (not point to store it yet since it's not a 100%
    > reliable ordering ;).
    >
    > The -c parameter tells the directory where to generate the cache. the
    > cache is truly the whole repository and it contains all the data and
    > metadata in an open form. To get it just run:
    >
    > changeset = self.unpickle(revision)
    >
    > where revision can be '1.947.3.5'. dir(changeset) will show you what you
    > can find there, it's a live class after being restored from disk (I put
    > only data in there to save space on disk but in theory it could contain
    > software too, not that I think it is useful but..).
    >
    > the output looks like this
    >
    > athlon:~/devel/bkweb> python bkweb.py -u http://linux.bkbits.net:8080/linux-2.5 --rev=1.947.3.4 -t ~/devel/kernel/x -c ~/devel/kernel/2.5-pickle >/tmp/x
    > Downloading (linux.bkbits.net:8080,/linux-2.5/) ... done.
    > Found 14 Changeset fallback pages.
    > Searching rev 1.947.3.4 ... found at CHS 6
    > Pending 294 revisions
    > Downloading changeset 1.947.3.5 ... done.
    > ------ Changeset: 1.947.3.5
    > ------ Author: scott.feldman@intel.com
    > ------ Date: 2003-01-16 23:06:26-05:00
    > ------ Commentary: [netdrvr e100] udelay a better way
    >
    > * Bug Fix: TCO workaround after hard reset of controller to wait for TCO
    > traffic to settle. Workaround requires issuing a CU load base command
    > after hard reset, followed by a wait for scb and finally a wait for
    > TCO traffic bit to clear. Affects 82559s and above wired to SMBus.
    >
    > ------ Files: ['drivers/net/e100/e100_main.c']
    > patching file drivers/net/e100/e100_main.c
    > make distclean ... done.
    > Pending 293 revisions
    > Downloading changeset 1.947.3.6 ... done.
    > ------ Changeset: 1.947.3.6
    > ------ Author: scott.feldman@intel.com
    > ------ Date: 2003-01-16 23:38:43-05:00
    > ------ Commentary: [netdrvr e100] fix TxDescriptor bit setting
    > ------ Files: ['drivers/net/e100/e100_main.c']
    > patching file drivers/net/e100/e100_main.c
    > make distclean ... done.
    > Pending 292 revisions
    > Downloading changeset 1.947.3.7 ... done.
    > ------ Changeset: 1.947.3.7
    > ------ Author: scott.feldman@intel.com
    > ------ Date: 2003-01-16 23:40:31-05:00
    > ------ Commentary: [netdrvr e100] standardize nic-specific stats
    > support
    >
    > * Removed /proc/net/PRO_LAN_Adapters
    > * Added ethtool GSTATS support
    > ------ Files: ['drivers/net/e100/Makefile', 'drivers/net/e100/e100.h', 'drivers/net/e100/e100_main.c']
    > patching file drivers/net/e100/Makefile
    > patching file drivers/net/e100/e100.h
    > patching file drivers/net/e100/e100_main.c
    > [..]
    >
    > at the first reject it stops and writes to stdout (/tmp/x in my example)
    > the patch that rejected so you can analyze it. I think it never completed
    > successfully yet but if it works correctly it should just exit with
    > nothing in stdout (with stdout I really mean fd 1, not stderr of
    > course).
    >
    > So if you run the same command twice the second time it will find
    > everything in the cache obviously, and the cache is trivial to
    > manipulate using simple python scripts, so you can automate searches on
    > files in the changesets or whatever (including feeding the data into CVS
    > or whatever) So backing up the cache effectively you save the whole
    > bitkeeper repository (only the main branch). Converting the cache to
    > something python indipendent is trivial too, I wrote this thing fast
    > so this was the easiest way.
    >
    > My main object is to give access to data and metadata of the changesets
    > generated during kernel development in a very manageable form to
    > everybody, reliably, without proprietary licence restrictions, and to store it
    > somewhere (possibly mirrored) in a open standard. This had to be the
    > case since the first place IMHO. the cset/ directory doesn't allow
    > anything like that in terms of regenerating the whole tree or managing
    > the metadata, and it's even less reliable than bkweb. The fact I've to
    > fetch from the web and not from the cset/ directories on the mirrors
    > should tell the whole story about the completeness of the cset/
    > directory. cset/ is better than nothing but it doesn't obviate the need
    > of bkweb or bk.
    >
    > I wrote the first line of this program yesterday (it's not that I've
    > that much time for this thing but eventually I wanted to checkout
    > through the bitkeeper database too), clearly it's not well tested and I
    > don't have much time for it.
    >
    > I guess the bitkeeper network protocol could be also implemented on the
    > longer run, it should be much faster to fetch all the database that way,
    > but clearly decoding the html is been much easier and it is supposed to
    > run in background for me, so I don't care about the checkout speed at
    > the moment.
    >
    > If you run it like shown above it will stop like below on
    > fs/jfs/inode.c.rej in changeset 1.947.6.2, removing -F1 from the patch
    > parameters should workaround it but I didn't even tried it since I need
    > to solve this problem before it is really useful.
    >
    > [..]
    > Pending 278 revisions
    > Downloading changeset 1.947.9.4 ... done.
    > ------ Changeset: 1.947.9.4
    > ------ Author: ganesh@veritas.com
    > ------ Date: 2003-01-17 11:58:19-08:00
    > ------ Commentary: [PATCH] USB ipaq driver ids
    >
    > Added ids for the Dell Axim and Toshiba E740.
    >
    > Thanks to Ian Molton and B.I.
    > ------ Files: ['drivers/usb/serial/ipaq.c', 'drivers/usb/serial/ipaq.h']
    > patching file drivers/usb/serial/ipaq.c
    > patching file drivers/usb/serial/ipaq.h
    > make distclean ... done.
    > Pending 277 revisions
    > Downloading changeset 1.947.6.2 ... done.
    > ------ Changeset: 1.947.6.2
    > ------ Author: shaggy@ibm.com
    > ------ Date: 2003-01-17 14:17:30-06:00
    > ------ Commentary: JFS: replace ugly JFS debug macros with simpler ones.
    >
    > JFS has always used ugly debug macros, jFYI, jEVENT, & jERROR. I have
    > replaced them with simpler jfs_info(), jfs_warn(), & jfs_err().
    >
    > ------ Files: ['fs/jfs/inode.c', 'fs/jfs/jfs_btree.h', 'fs/jfs/jfs_debug.h', 'fs/jfs/jfs_dmap.c', 'fs/jfs/jfs_dtree.c', 'fs/jfs/jfs_imap.c', 'fs/jfs/jfs_inode.c', 'fs/jfs/jfs_logmgr.c', 'fs/jfs/jfs_metapage.c', 'fs/jfs/jfs_mount.c', 'fs/jfs/jfs_txnmgr.c', 'fs/jfs/jfs_umount.c', 'fs/jfs/jfs_unicode.c', 'fs/jfs/jfs_xtree.c', 'fs/jfs/namei.c', 'fs/jfs/super.c']
    > patching file fs/jfs/inode.c
    > Hunk #5 FAILED at 377.
    > 1 out of 5 hunks FAILED -- saving rejects to file fs/jfs/inode.c.rej
    > patching file fs/jfs/jfs_btree.h
    > patching file fs/jfs/jfs_debug.h
    > patching file fs/jfs/jfs_dmap.c
    > patching file fs/jfs/jfs_dtree.c
    > patching file fs/jfs/jfs_imap.c
    > patching file fs/jfs/jfs_inode.c
    > patching file fs/jfs/jfs_logmgr.c
    > patching file fs/jfs/jfs_metapage.c
    > patching file fs/jfs/jfs_mount.c
    > patching file fs/jfs/jfs_txnmgr.c
    > patching file fs/jfs/jfs_umount.c
    > patching file fs/jfs/jfs_unicode.c
    > patching file fs/jfs/jfs_xtree.c
    > patching file fs/jfs/namei.c
    > patching file fs/jfs/super.c
    > Traceback (most recent call last):
    > File "bkweb.py", line 283, in ?
    > bkweb(sys.argv)
    > File "bkweb.py", line 279, in bkweb
    > checkout(url, rev, tree, cache, verbose)
    > File "bkweb.py", line 235, in checkout
    > raise 'FailedPatch', changeset.rev
    > FailedPatch: 1.947.6.2
    >
    > Andrea
    > -
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    --
    ---
    Larry McVoy lm at bitmover.com http://www.bitmover.com/lm
    -
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