126 lines
5.3 KiB
Markdown
126 lines
5.3 KiB
Markdown
# migrating from gitosis to gitolite
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[2012-04-09] Modified for gitolite g3. These instructions have not really
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been tested with g3, but are expected to work.
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Migrating from gitosis to gitolite is fairly easy, because the basic design is
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the same.
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There's only one thing that might trip up people: the userid. Gitosis uses
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`gitosis`. Gitolite can use any userid you want; most of the documentation
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uses `git`, while DEB/RPM packages use `gitolite`.
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Here are the steps on the server:
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* (as 'gitosis' on the server) **Rename** `~/.ssh/authorized_keys` to
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something else so that no one can accidentally push while you're doing
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this.
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* (as 'gitosis' on the server) For added safety, **delete** the post-update
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hook that gitosis-admin installed
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rm ~/repositories/gitosis-admin.git/hooks/post-update
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or at least rename it to `.sample` like all the other hooks hanging
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around, or edit it and comment out the line that calls `gitosis-run-hook
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post-update`.
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* (as 'gitosis' on the server) If you already use the `update` hook for some
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reason, you'll have to make that a [VREF][vref]. This is because gitolite
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uses the update hook for checking write access.
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* (as 'root' on the server) copy all of `~/repositories` to the gitolite
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hosting user's home directory. Something like
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cp -a /home/gitosis/repositories /home/git
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chown -R git.git /home/git/repositories
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* (as 'root' and/or 'git' on the server) Follow instructions to install
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gitolite; see the [install document][install].
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This will give you a gitolite config that has the required entries for the
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"gitolite-admin" repo.
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Now, log off the server and get back to the client. All subsequent
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instructions are to be read as "on gitolite admin's workstation".
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* **Clone** the new gitolite-admin repo to your workstation. (You already
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have a clone of the gitosis-admin repo so now you have both).
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* **Convert** your gitosis config file and append it to your gitolite config
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file. Substitute the path for your gitosis-admin clone in `$GSAC` below,
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and similarly the path for your gito**lite**-admin clone in `$GLAC`. (The
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convert-gitosis-conf program is a standalone program that you can bring
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over from any gitolite clone; you don't have to install all of gitolite on
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your workstation to use this):
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./convert-gitosis-conf < $GSAC/gitosis.conf >> $GLAC/conf/gitolite.conf
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**Be sure to check the file to make sure it converted correctly** -- due
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it's "I only need it once" nature, this program has not received too much
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attention from anyone!
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* Remove the entry for the 'gitosis-admin' repo. You do not need it here
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and it may cause confusion.
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* **Copy** the keys from gitosis's keydir (same meanings for GSAC and GLAC)
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cp $GSAC/keydir/* $GLAC/keydir
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If your gitosis-admin key was `you@machine.pub`, and you supplied the same
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one to gitolite's gl-setup program as `you.pub` when you installed
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gitolite, then you should remove `you@machine.pub` from the new keydir
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now. Otherwise you will have 2 pubkey files (`you.pub` and
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`you@machine.pub`) which are identical, which is *not* a good idea.
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Similarly, you should replace all occurrences of `you@machine.pub` with
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`you` in the `conf/gitolite.conf` file.
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* **IMPORTANT**: if you have any users with names like `user@foo`, where the
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part after the `@` does *not* have a `.` in it (i.e., does not look like
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an email address), you need to change them, because gitolite uses that
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syntax for [enabling multi keys][multi-key].
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You have two choices in how to fix this. You can change the gitolite
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config so that all mention of `user@foo` is changed to just `user`.
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Or you can change each occurrence of `user@foo` to, say, `user_foo` *and*
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change the pubkey filename in keydir/ also the same way (`user_foo.pub`).
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Just to repeat, you do NOT need to do this if the username was like
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`user@foo.bar`, i.e., the part after the `@` had a `.` in it, because then
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it looks like an email address.
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* **IMPORTANT: expand any multi-key files you may have**. Gitosis is happy
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to accept files containing more than one public key (one per line) and
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assign all the keys to the same user. Gitolite does not allow that; see
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[here][multi-key]'s for how gitolite handles multi-keys.
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So if you had any multi-keys in gitosis, they need to be carefully split
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into individual keys.
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You can split the keys manually, or use the following code (just
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copy-paste it into your xterm after "cd"-ing to your gitolite-admin repo
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clone):
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wc -l keydir/*.pub | grep -v total | grep -v -w 1 | while read a b
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do
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i=1
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cat $b|while read l
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do
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echo "$l" > ${b%.pub}@$i.pub
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(( i++ ))
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done
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mv $b $b.done
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done
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This will split each multi-key file (say "sitaram.pub") into individual
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files called "sitaram@1.pub", "sitaram@2.pub", etc., and rename the
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original to "sitaram.pub.done" so gitolite won't pick it up.
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At this point you can rename the split parts more appropriately, like
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"sitaram@laptop.pub" and "sitaram@desktop.pub" or whatever. *Please check
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the files to make sure this worked properly*
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* Check all your changes to your gitolite-admin clone, commit, and push.
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