Update on moving Bugzilla to git

[Mark Côté]

Another update: I've finished the two scripts.  The first is for the
initial migration, which translates bzr's fast-export output into
git-friendly fast-import input, specifically adding the "bug" commit
property to the git commit message, if it exists and if the referenced
bug is not already mentioned in the commit message.  This is a C#
script, which I know is a bit odd, but I found it on a blog post, and it
was easier to make a few changes than rewrite it in Perl or Python or
Bash or another language that makes more sense on *NIX platforms.  It
runs fine under mono on Linux.

The second script keeps the Bazaar branches in check with the git
branches.  It's Perl, based off of the current bzr-to-cvs.pl script, as
mentioned in my previous post.

I've created a repo in GitHub with these scripts and a README explaining
how we intend to do the migration:
https://github.com/markrcote/bugzilla-git-migration.  I invite anyone
interested to take a look and even try it out; there are instructions on
testing in the README.

I've done conversions of Bugzilla trunk and 4.2 using the latest version
of the migration script and pushed them to a GitHub repo as examples
(the plan is still to have the official repos hosted on git.mozilla.org
with one-way mirrors to GitHub): https://github.com/markrcote/bugzilla

I'm not sure of the exact timing of the migration.  I'm thinking
February/March, when we can both get some feedback on these scripts (in
case I've made any glaring errors) and schedule some IT time.

Mark


On 12/10/2013, 4:16 PM, Mark Côté wrote:
> Just wanted to give a brief update on the plan to transition to git to
> assure all that it is still progressing.
> 
> I've fleshed out the wiki page[1], including a step-by-step plan.  I've
> got a one-time migration script working based on [2] that preserves the
> bug ID commit metadata, although I need to tweak it slightly to only
> annotate commits that don't reference the bug mentioned in the metadata
> (the original script does this, but I need to change it to Bugzilla's
> standard).  An example of the resulting migration for bmo/4.2 is at [3].
> 
> Finally, I have a git-to-bzr.pl script working based on the previous
> migration script, bzr-to-cvs.pl[4].  I will be posting it for review
> very soon.
> 
> Mark
> 
> 
> [1]: https://wiki.mozilla.org/Bugzilla:Migrating_to_git
> [2]: http://www.fusonic.net/en/blog/2013/03/26/migrating-from-bazaar-to-git/
> [3]: https://github.com/markrcote/bmo
> [4]: http://bzr.mozilla.org/bzr-plugins/bzr-to-cvs/view/head:/bzr-to-cvs.pl
> 

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