Open Build Service

Basic workflow for working with packages on Open Build Service.

Install requirements

Add repositories for specific openSuSE version:
openSuSE Leap 15.6

sudo zypper ar https://download.opensuse.org/repositories/openSUSE:/Tools/openSUSE_15.6/ Tools
sudo zypper ar https://download.opensuse.org/repositories/devel:/tools/15.6/ devel:tools

openSUSE Tumbleweed

sudo zypper ar https:///download.opensuse.org/repositories/devel:/tools/openSUSE_Tumbleweed/ devel:tools

Install osc client and obs services:

sudo zypper in osc obs-service-format_spec_file obs-service-set_version obs-service-obs_scm obs-service-source_validator

Setup

Creating a working dir and config osc client

mkdir OBS
cd OBS
/OBS $ osc

osc command write down a new oscrc configuration file in ~/.config/osc/.
I usually just add these lines to the file:

su-wrapper = sudo  
build-root = /var/tmp/build-root/%(repo)s
checkout_no_colon = 1

This enables sudo wrapper, build directory creation for each operating system and an alternate layout when checking out a project without colons (home/gallochri instead of home:gallochri).
Edit sudoers file to give your user the authority to use osc and build command without prompt for password.

su
Password: 
visudo

and add this line
gallochri ALL = NOPASSWD: /usr/bin/build, /usr/bin/osc
use your username instead of gallochri 😛.

Checkout a project

Now it’s time to download some projects and start making changes

$ osc co home:gallochri
A    home:gallochri
A    home:gallochri/EmulationStation
...

Working on existing packet with quilt

cd yourproject/yourpackage
quilt setup -v *spec
cd yourpackage-*/
quilt push -a   # apply old patches
quilt new yourpackage-version_fixbuild.patch
quilt edit src/foo.c
quilt refresh -p0

You can find a new .patch file in source dir.

Creating new packet

cd yourproject
osc mkpac yourpackage
cd yourpackage
rpmdev-newspec -t minimal yourpackage

When you have finished writing your .spec file without any rpmlint errors, you can send the package to the Open Build Service.

osc vc    # note the changes to the package
osc ci    # commit your work