Contribution in detail

Local build of current version

Need prerequisites for osc and build

Summary

1. Branch the OBS package in either your local OBS or the community OBS using the MDS remote link.
2. Checkout the package from OBS
3. Incorporate a bare clone mer/git package from Mer master repo into the osc directory.
4. Clone the mer/git package from Mer master repo
5. The OBS and mer/git package should be identical.
6. Unpack the source and apply patches (usually in a local build root)
7. Optionally take a snapshot of chroot (for later diff)
8. Hack in chroot until ready (potentially needing to install new pkgs for new BRs)
9. Create a patch
10. Modify packaging
11. Submit to OBS to verify build
12. Build and test and image or other appropriate QA
13. Submit to gerrit for CI and review

Branch the package to work on it

osc -A https://obs branch Mer.org:Core:i586 systemd

A bug in the OBS means that the new branch project will not have the correct repos so add them manually. Even if you add them through the OBS web interface they will miss the arch field.

osc -A https://obs meta prj home:YOURNAME -e

  <repository name="Mer_Core_i586">
   <path repository="Core_i586" project="Mer.org:Core:i586"/>
   <arch>i586</arch>
  </repository>

The repository needs to be set to publish too.

Checkout:

  osc -A https://obs co home:Admin:branches:Mer.org:Core:i586/systemd
  cd home:Admin:branches:Mer.org:Core:i586/systemd
  osc build i586

Pull the latest Mer version from the gerrit git repo

Clone the git repo metadata into your OSC checkout using git's --bare option :

  cd home:Admin:branches:Mer.org:Core:i586/systemd
  git clone --bare ssh://your_username@review.merproject.org:29418/mer-core/systemd .git
  git config -f .git/config core.bare false

Check out the latest content from git:

  git reset --hard

Hack

You can now edit the code and packaging

Build

Of course you'll need to do one or more builds to verify the code in a cycle like this:

 specify *yaml
 osc build i586 *.spec
 osc chroot i586 *.spec

Then a server-side build:

 osc ar
 osc ci

Create image

Use a suitable .ks with mic2

If you use IMG, it supports a feature called "Extra repositories and packages". This allows you to use a standard kickstart and add a specific repository to use for overrides.

Select the OBS and enter the repository/repo eg:

 home:Admin:branches:Mer.org:Core:i586/Mer_Core_i586

Build a suitable image, install and test

 DEVICE=/dev/sdh
 curl http://imgw1/images/web/root/1-20111110-090037/meego-nemo-trial-1.2.90.20111110.1000.iso | sudo dd of=$DEVICE bs=4M oflag=direct && sudo eject $DEVICE

Push for review

In the obs/mer package directory:

  cd home:Admin:branches:Mer.org:Core:i586

If this is a new change (ie it hasn't been rejected and corrected) then:

  git commit -s

If it has been rejected once and you're correcting the error then

  git commit -s --amend

When you're satisfied:

  git push origin HEAD:refs/for/master

You should get back a message like:

remote: New Changes:
remote:   http://review.merproject.org/XXX

This will now be scheduled for a CI build and test; then it will be manually reviewed and hopefully, accepted.

New Packages

Occasionally a new package is required in Mer.

The process is similar to the normal contribution with some minor variations.

1. Build your package in the community OBS
2. Propose a new package on irc, mailing list or via a bug to Mer Core/.Project-core
3. Wait for the git repo to be created
4. Checkout your package from your OBS project
5. Prepare a git repo and add your code. Then do a signed-off commit.
6. Link your local git repository to the remote mer-core/gerrit repository
7. Push your code for review and CI

So having prepared and built your package on OBS, go to the osc package directory

osc co <PRJ> <PKG>
cd <PRJ>/<PKG>

Then prepare the git repo (skipping the .osc/ dir)

git init .
git add *
git commit -s

Now add the Mer git repository (using your name/package)

git remote add gerrit ssh://<yourlogin>@review.merproject.org:29418/mer-core/<packagename>

A quick way to check all is well is

git remote update

Finally, to push the new code and start a CI run:

git push gerrit HEAD:refs/for/master

You should get back a message like:

remote: New Changes:
remote:   http://review.merproject.org/XXX

This will now be scheduled for a CI build and test; then it will be manually reviewed and hopefully, accepted.

If changes are needed at this point, the code is already in gerrit so it follows the normal modification process.