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I think Ruby's point is right: we need to think about how a tool
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*feels* as you're using it.
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Making regular commits gives a nice rhythm to to working; in some
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ways it's nicer to just commit single files with C-x v v than to build
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complex changesets. (See gmane.c.v-c.arch.devel post 19 Nov, Tom
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* Would like to generate an activity report, to e.g. mail to your boss
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or post to your blog. "What did I change today, across all these
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* It is possibly nice that tla by default forbids you from committing
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if emacs autosave or lock files exist -- I find it confusing to
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commit somethin other than what is shown in the editor window
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because there are unsaved changes.
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However, grumbling about unknown files is annoying, and requiring
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people to edit regexps in the id-tagging-method file to fix it is
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Perhaps there should be a preference to abort on unknown files, or
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perhaps it should be possible to specify forbidden files.
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Perhaps this is related to a mechanism to detect conflicted files:
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should refuse to commit if there are any .rej files lying around.
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*Those who lose history are doomed to recreate it.*
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-- broked (on #gnu.arch.users)
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*A universal convention supplies all of maintainability, clarity, consistency, and a foundation for good programming habits too. What it doesn't do is insist that you follow it against your will. That's Python!*
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-- Tim Peters on comp.lang.python, 2001-06-16
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(Bazaar provides mechanism and convention, but it is up to you
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whether you wish to follow or enforce that convention.)
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A way to subtract merges, so that you can see the work you've done
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to a branch since conception.
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<mpool> now that is a neat idea: advertise branches over zeroconf
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<mpool> should make lca fun :-)
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http://thedailywtf.com/ShowPost.aspx?PostID=24281
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Source control is necessary and useful, but in a team of one (or even two) people the setup overhead isn't always worth it--especially if you're going to join source control in a month, and you don't want to have to migrate everything out of your existing (in my case, skunkworks) system before you can use it.
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At least that was my experience--I putzed with CVS a bit and knew other source control systems pretty well, but in the day-to-day it wasn't worth the bother (granted, I was a bit offended at having to wait to use the mainline source control, but that's another matter).
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I think Bazaar-NG will have such low setup overhead (just ``init``,
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``add``) that it can be easily used for even tiny projects. The
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ability to merge previously-unrelated trees means they can fold their
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* cope without $EMAIL better
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* notes at start of .bzr.log:
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* or include it in bug reports
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* should you be able to remove things from the default ignore list?
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* headers at start of diff, giving some comments, perhaps dates
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* is diff against /dev/null really OK? I think so.
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* separate remove/delete commands?
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* detect files which were removed and now in 'missing' state
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* should we actually compare files for 'status', or check mtime and
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size; reading every file in the samba source tree can take a long
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without this, doing a status on a large tree can be very slow. but
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relying on mtime/size is a bit dangerous.
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people really do work on trees which take a large chunk of memory
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and which will not stay in memory
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* status up-to-date files: not 'U', and don't list without --all
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* if status does compare file text, then it should be quick when
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checking just a single file
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* wrapper for svn that every time run logs
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- sufficient to replay everything
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* status crashes if a file is missing
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* option for -p1 level on diff, etc. perhaps
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* commit without message should start $EDITOR
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* don't duplicate all files on commit
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* start importing tridge-junkcode
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* perhaps need xdelta storage sooner rather than later, to handle very
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The first operation most people do with a new version-control system
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is *not* making their own project, but rather getting a checkout of an
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existing project, building it, and possibly submitting a patch. So
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those operations should be *extremely* easy.
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* Way to check that a branch is fully merged, and no longer needed:
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should mean all its changes have been integrated upstream, no
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uncommitted changes or rejects or unknown files.
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* Filter revisions by containing a particular word (as for log).
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Perhaps have key-value fields that might be used for
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e.g. line-of-development or bug nr?
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* List difference in the revisions on one branch vs another.
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* Perhaps use a partially-readable but still hopefully unique ID for
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revisions/inventories?
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* Preview what will happen in a merge before it is applied
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* When a changeset deletes a file, should have the option to just make
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Perhaps this is best handled by an interactive merge. If the file
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is unchanged locally and deleted remotely, it will by default be
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deleted (but the user has the option to reject the delete, or to
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make it just unversioned, or to save a copy.) If it is modified
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locall then the user still needs to choose between those options but
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there is no default (or perhaps the default is to reject the delete.)
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* interactive commit, prompting whether each hunk should be sent (as
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* Write up something about detection of unmodified files
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* Preview a merge so as to get some idea what will happen:
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* What revisions will be merged (log entries, etc)
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* What files will be affected?
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* Are those simple updates, or have they been updated locally as
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* Any renames or metadata clashes?
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* Show diffs or conflict markers.
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* Do the merge, but write into a second directory.
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* "Show me all changesets that touch this file"
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Can be done by walking back through all revisions, and filtering out
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those where the file-id either gets a new name or a new text.
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* Way to commit backdated revisions or pretend to be something by
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someone else, for the benefit of import tools; in general allow
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everything taken from the current environment to be overridden.
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* Cope well when trying to checkout or update over a flaky
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connection. Passive HTTP possibly helps with this: we can fetch all
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the file texts first, then the inventory, and can even retry
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interrupted connections.
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* Use readline for reading log messages, and store a history of
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previous commit messages!
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20050218090900.GA2071@opteron.random
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Subject: Re: [darcs-users] Re: [BK] upgrade will be needed
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From: Andrea Arcangeli <andrea@suse.de>
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Newsgroups: gmane.linux.kernel
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Date: Fri, 18 Feb 2005 10:09:00 +0100
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On Thu, Feb 17, 2005 at 06:24:53PM -0800, Tupshin Harper wrote:
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> small to medium sized ones). Last I checked, Arch was still too slow in
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> some areas, though that might have changed in recent months. Also, many
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IMHO someone needs to rewrite ARCH using the RCS or SCCS format for the
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backend and a single file for the changesets and with sane parameters
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conventions miming SVN. The internal algorithms of arch seems the most
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advanced possible. It's just the interface and the fs backend that's so
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bad and doesn't compress in the backups either. SVN bsddb doesn't
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compress either by default, but at least the new fsfs compresses pretty
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well, not as good as CVS, but not as badly as bsddb and arch either.
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I may be completely wrong, so take the above just as a humble
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darcs scares me a bit because it's in haskell, I don't believe very much
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in functional languages for compute intensive stuff, ram utilization
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skyrockets sometime (I wouldn't like to need >1G of ram to manage the
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tree). Other languages like python or perl are much slower than C/C++
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too but at least ram utilization can be normally dominated to sane
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levels with them and they can be greatly optimized easily with C/C++
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extensions of the performance critical parts.
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