7.6 KiB
migration example
This shows what a typical migration would look like, using a test setup.
existing setup
The existing gitolite is the latest in the "g2" (v2.x) branch.
First, the rc file has the following lines different from the default:
-$GL_WILDREPOS = 0;
+$GL_WILDREPOS = 1;
-$GL_GITCONFIG_KEYS = "";
+$GL_GITCONFIG_KEYS = ".*";
Next, the conf/gitolite.conf file in ~/.gitolite:
repo gitolite-admin
RW+ = tester u1
repo testing
RW+ = @all
repo foo
RW+ = u1 u2
RW+ NAME/ = u1
RW+ NAME/u2 = u2
repo bar
RW = u2
repo baz/..*
C = u3 u4
RW+ = CREATOR
config foo.bar = baz
(Note that this conf file has NAME/ rules, which have changed significantly in g3; see [here][g2i-name] for details).
These are the repos already existing
$ find repositories -name "*.git" | sort
repositories/bar.git
repositories/baz/u3.git
repositories/baz/u4.git
repositories/baz/uthree.git
repositories/foo.git
repositories/gitolite-admin.git
repositories/testing.git
The config entries exist for all the baz/ repos:
$ grep -2 foo `find repositories -name "config" `
repositories/baz/uthree.git/config-[gitweb]
repositories/baz/uthree.git/config- owner = u3
repositories/baz/uthree.git/config:[foo]
repositories/baz/uthree.git/config- bar = baz
--
repositories/baz/u4.git/config-[gitweb]
repositories/baz/u4.git/config- owner = u4
repositories/baz/u4.git/config:[foo]
repositories/baz/u4.git/config- bar = baz
--
repositories/baz/u3.git/config-[gitweb]
repositories/baz/u3.git/config- owner = u3
repositories/baz/u3.git/config:[foo]
repositories/baz/u3.git/config- bar = baz
preparing for the migration
getting g3
Fortunately this is easy here; I just happened to have the repo already fetched so I just had to switch branches. You may have to 'git clone ...' from github.
$ cd gitolite
$ git checkout master
Branch master set up to track remote branch master from origin.
Switched to a new branch 'master'
run check-g2-compat
This is a quick and dirty program to catch some of the big issues.
$ cd
$ gitolite/check-g2-compat
INFO This program only checks for uses that make the new g3 completely unusable
or that might end up giving *more* access to someone if migrated as-is.
It does NOT attempt to catch all the differences described in the docs.
INFO 'see docs' usually means doc/g2migr.mkd
(online at http://sitaramc.github.com/gitolite/g3/g2migr.html)
checking rc file...
NOTE GL_ADMINDIR is in the right place; assuming you did not mess with
GL_CONF, GL_LOGT, GL_KEYDIR, and GL_CONF_COMPILED
checking conf file(s)...
SEVERE NAME rules; see docs
checking repos...
WARNING found 3 gl-creater files; see docs
...all done...
the actual migration
Here's the actual migration, step by step
step 1
$ ls -a bin
. gl-admin-push gl-install gl-setup-authkeys gl-VREF-DUPKEYS
.. gl-auth-command gl-mirror-push gl-system-install gl-VREF-EMAIL_CHECK
gitolite_env.pm gl-compile-conf gl-mirror-shell gl-time gl-VREF-FILETYPE
gitolite.pm gl-conf-convert gl-query-rc gl-tool gl-VREF-MERGE_CHECK
gitolite_rc.pm gl-dryrun gl-setup gl-VREF-COUNT sshkeys-lint
$ rm -rf bin;mkdir bin
$ grep GL_PACKAGE .gitolite.rc
$GL_PACKAGE_CONF = "/home/g3/share/gitolite/conf";
$GL_PACKAGE_HOOKS = "/home/g3/share/gitolite/hooks";
$ rm -rf share
$GL_PACKAGE_HOOKS = "/home/g3/share/gitolite/hooks";
$ rm -rf share
$ mv .gitolite.rc old.grc
(still on step 1, this is substep 3) notice we are cloning on the server, using a full path to the repo.
$ git clone repositories/gitolite-admin.git old.ga
Cloning into 'old.ga'...
done.
$ rm -rf repositories/gitolite-admin.git/
Since I'm not interested in preserving the logs and don't have any custom hooks:
$ rm -rf .gitolite
step 2
I have no variables that must be preset, since the report by
check-g2-compat is clear.
step 3
Here we install the new gitolite. Remember we already got the new software (in order to run 'check-g2-compat').
Just check that bin is empty, then run 'install -ln' from the gitolite source tree:
$ ls -al bin
total 8
drwxrwxr-x 2 g3 g3 4096 Apr 24 10:57 .
drwx------ 8 g3 g3 4096 Apr 24 10:59 ..
$ gitolite/install -ln
$ ls -al bin
total 8
drwxrwxr-x 2 g3 g3 4096 Apr 24 11:01 .
drwx------ 8 g3 g3 4096 Apr 24 10:59 ..
lrwxrwxrwx 1 g3 g3 30 Apr 24 11:01 gitolite -> /home/g3/gitolite/src/gitolite
OK that went well. Now setup gitolite. You don't need a key here; just use a random name:
$ gitolite setup -a admin
Initialized empty Git repository in /home/g3/repositories/gitolite-admin.git/
step 4
Now go to your old clone, and push it:
$ cd old.ga
$ gitolite push -f
...usual git progress output deleted...
remote: FATAL: git config foo.bar not allowed
remote: check GIT_CONFIG_KEYS in the rc file
To /home/g3/repositories/gitolite-admin.git
+ 7eb8163...1474770 master -> master (forced update)
Aaha! I forgot to set CONFIG_KEYS (new name for GL_GIT_CONFIG_KEYS) in
the new rc file so fix that:
$ vim ~/.gitolite.rc
(edit and set it to `.*` for now)
and push again:
$ gitolite push -f
Everything up-to-date
Damn. We have to make a dummy commit to allow the push to do something.
But wait! We forgot fix the [NAME/][g2i-name] rules, so may as well fix those, add, and push:
$ vim conf/gitolite.conf
# change all NAME/ to VREF/NAME/
# append a '- VREF/NAME/ = @all' at the end
# save
git add conf
$ git commit -m name-rules
... some output for add...
$ gitolite push -f
Counting objects: 1, done.
Writing objects: 100% (1/1), 181 bytes, done.
Total 1 (delta 0), reused 0 (delta 0)
Unpacking objects: 100% (1/1), done.
To /home/g3/repositories/gitolite-admin.git
1474770..4c2b41d master -> master
step 5
The only thing left is to fix up the gl-creater files:
$ cd $HOME/repositories
$ find . -type d -name "*.git" -prune | while read r
> do
> mv $r/gl-creater $r/gl-creator
> done 2>/dev/null
And we're done!
checking things out
Let's see what repos u3 has:
ssh u3 info
hello u3, this is g3@sita-lt running gitolite3 v3.0-11-g090b0f5 on git 1.7.7.6
C baz/..*
R W baz/u3
R W baz/uthree
R W gitolite-admin
R W testing
That's a combination of 'info' and 'expand', by the way. There is no expand command any more.
How about adding a new repo and checking if the config entries made it?
$ git ls-remote u4:baz/ufour
Initialized empty Git repository in /home/g3/repositories/baz/ufour.git/
$ grep -A1 foo `find repositories -name "config" `
repositories/baz/u3.git/config:[foo]
repositories/baz/u3.git/config- bar = baz
--
repositories/baz/u4.git/config:[foo]
repositories/baz/u4.git/config- bar = baz
--
repositories/baz/ufour.git/config:[foo]
repositories/baz/ufour.git/config- bar = baz
--
repositories/baz/uthree.git/config:[foo]
repositories/baz/uthree.git/config- bar = baz
And there it is, in the second block of lines...
And now we're really done.