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Find the package that you need to work with
The build service contains many different versions of packages. Some may be official releases and others may be under development by users in their home projects. The easiest way to find which versions are candidates for maintenance, use the osc maintained command. We'll use the nfs-utils package as an example.
$ osc maintained nfs-utils openSUSE:Leap:15.1:Update/nfs-utils
Create a branch
The build service provides an easy way to work on packages without having to unnecessarily contaminate the original package. It allows the user to check out a private version of the package into their home project. Any changes committed to it will be stored as a set of changes to the original. This has the advantage of making the differences between the two projects obvious when the branch is eventually submitted back to the original project.
The process for creating a branch of a single package from a single project is:
$ osc branch -M -c openSUSE:Leap:42.3 nfs-utils [...]
In this case an update for nfs-utils was released previously already. The updated sources got stored in a different project, openSUSE:Leap:42.3:Update. You don't have to bother about that detail. osc automatically does the right thing and uses the updated sources. So just follow the instructions provided and check out your branched copy of the package:
If you already have a branch for this package, you should remove and recreate it. A branch that is still around and you wonder why needs investigation. It may mean that a submit-request was not accepted, and thus the cleanup never triggered. Removing such a branch may destroy your previous work.
The branch point exists from the point in time that you created it. If other changes have been committed in the interim, they will be lost if you use your existing branch. You can delete the branch by deleting the package with the osc rdelete project package command. For the our example, it would be osc rdelete home:BenniBrunner:branches:openSUSE:Leap:42.3:Update nfs-utils.openSUSE_Leap_42.3_Update.
Branching all code streams at once
Sometimes you need to update a package for all maintained code streams, e.g. for a security fix. With the method described above you'd have to branch and check out the package two times, once for Leap 42.2 and Leap 42.3.
The osc mbranch command will make that convenient. It can query the build service to find the list of projects where a package is flagged for maintenance.
osc mbranch collects all copies of the package from all projects flagged for maintenance and creates branches of those packages in one project:
$ osc mbranch nfs-utils Project home:BenniBrunner:branches:OBS_Maintained:nfs-utils created.
$ osc co home:BenniBrunner:branches:OBS_Maintained:nfs-utils A home:BenniBrunner:branches:OBS_Maintained:nfs-utils A home:BenniBrunner:branches:OBS_Maintained:nfs-utils/nfs-utils.openSUSE_Leap_42.2_Update [...] A home:BenniBrunner:branches:OBS_Maintained:nfs-utils/nfs-utils.openSUSE_Leap_42.3_Update [...]
Adding a new codestream
osc mbranch has no way of adding new code streams to a maintenance project. Instead, you can use osc branch's -M parameter.
osc branch -M openSUSE:Leap:15.0:Update nfs-utils home:BenniBrunner:branches:OBS_Maintained:nfs-utils
This will link the package to the Leap 15 Update repository, name the package correctly (i.e. append the name of the code stream), and add the necessary repository in the project config.
Now, you can run osc up in the maintenance project directory to check out the newly created code stream package.
Getting the list of maintained copies manually
If still in doubt, please contact the maintenance team for the correct list.
Make your changes
Now that you have a private copy of the package, you can make whatever changes you need to the package. The easiest way to handle updating the file list is to ensure that you don't have any temporary files still in the source package directory and use the osc addremove command.
If you add new patches, make sure to follow the Patch tagging guidelines.
Once you've completed your changes, add an entry to the .changes files using osc vc.
- briefly describe the problem, one line per problem
- include a reference to the bug number in the form (bnc#12345) (mandatory for maintenance updates)
- for security fixes include the CVE number if available.
Finally commit your changes to your branch with the osc commit command.
Submit your changes
Your branch is now a separate package and will build independently in your home project. It's generally a good idea to ensure that it builds within the tight constraints of the build system and is tested properly before submitting it. The submit process is simple.
From your checked-out project directory:
$ osc mr created request id 22864
All packages from a remote-project:
$ osc mr $prj created request id 22864
A specific package from a remote-project:
$ osc mr $prj $pkg $target #(e.g. $target could be openSUSE:Leap:42.3:Update) created request id 22864
A sub-set of packages from a remote-project:
$osc mr $prj $list $of $packages $target created request id 22864
Osc will prompt you for a message for the submit request. Usually you just use the same message as for the .changes file.
If the above doesn't work, you can try, from the checked-out package directory:
$ osc sr WARNING: WARNING: Project does not accept submit request, request to open a NEW maintenance incident instead WARNING: created request id Request: #180441