On Thu, 29 Dec 2011 21:28:38 +0100 Johan Engelen <jbc.engelen@...2592...> wrote:

Hi all,

A recent commit to lib2geom compressed almost all commits since februari into one. Very annoying, although I know you can find out what those individual commits were with some more clicking.

That seems odd, because

http://old.nabble.com/Re%3A-I%27ve-messed-the-lp%3Ainkscape-branch-p26959519...

was supposed to configure bzr to prevent that from happening. Perhaps Ted or someone else with commit access could check that that setting is still in effect / reapply it.

Cheers -Terry

These mistakes don't surprise me; I am scared of the bzr tool that does things I do not understand. So to make people aware of the dangers of bzr, I'd like to give advice to simple folks like me:

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I strongly advise you to not work in branches and merge it into trunk, and stay away from any other so-called convenient advanced functionality of bzr, like push-pull-whatever. Simply use it in 'svn mode'. http://wiki.inkscape.org/wiki/index.php/Working_with_Bazaar#Using_a_centrali...

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If you have fully understood how bzr works, perhaps you can try to use the extra functionality. In that case, learn how to foul up the history (like rev2000 in lib2geom) so you don't type in such commands.

Thank you very very very much, Johan

(PS. no hard feelings to the committer of course! I blame the tool that allows these things to happen)

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On Fri, 30 Dec 2011 00:01:19 +0100 Johan Engelen <jbc.engelen@...2592...> wrote:

Note that it concerns lib2geom, which lives in its own repository at Launchpad. Before applying the configuration change, I hope someone can restore lib2geom's trunk history.

That would explain how it was able to happen. Ted untangled it last time, I *think* it's as simple as uncommitting (bzr uncommit) the offending commit, but better to have someone who knows for sure, and of course has write access to the repo of course.

Cheers -Terry

On Thu, 2011-12-29 at 21:28 +0100, Johan Engelen wrote:

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I strongly advise you to not work in branches and merge it into trunk, and stay away from any other so-called convenient advanced functionality of bzr, like push-pull-whatever. Simply use it in 'svn mode'. http://wiki.inkscape.org/wiki/index.php/Working_with_Bazaar#Using_a_centrali...

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Glad things go solved, but just to provide some more information I thought I'd reply. In general, this is caused by a misunderstanding of what is happening, and it is really easy to fix.

I imagine this is the situation that people get in to:

$ bzr commit -m "Really cool work" $ bzr push lp:project Error: branches have diverged $ bzr merge lp:project $ bzr commit -m "Really cool work" $ bzr push lp:project

And generally, the developer is happy because the push worked. Their work is in the repo, but the history is now not as clear as it was previously (nothing is lost, just slightly hidden). A better way to handle this error is like this:

$ bzr commit -m "Really cool work" $ bzr push lp:project Error: branches have diverged $ bzr uncommit $ bzr shelve $ bzr pull lp:project $ bzr unshelve $ bzr commit -m "Really cool work" $ bzr push lp:project

This works really well if you have a single version that you've added. If you've added a whole set of revisions you probably want to set up a merge and do something like this.

$ bzr commit -m "Last commit of really cool work" $ bzr push lp:project Error: branches have diverged $ cd .... $ bzr branch lp:project tmp $ cd tmp $ bzr merge ../work $ bzr commit -m "Really cool work" $ cd ../work $ bzr pull ../tmp $ bzr push lp:project $ rm -rf ../tmp

You could push tmp as well, but I thought it'd be better to keep your working directory how it was.

HTH, Ted