This tool automates making an openSUSE Build Service package from a Git repository. It is used for Snapper and Libstorage.

You see, sometimes it is enough to simply tar up the Git repo with git archive or a similar tool. We can do that for YaST since its build scripts are ready for that. But more often the distribution tarball is expected to contain a configure script which you do not want to commit to Git.

Naturally there is a standard way, which is to run make dist. But this requires that you have the development dependencies installed. Why on Earth would you not have them installed? Because you are a colleague of the regular maintainer who just needs to fix one line. Or because you are a Continuous Integration server, which did have the dependencies right initially, but Progress, so now you have an outdated set.

Therefere this tool exists to bootstrap the dependencies by an osc build run.

This is copied from a Makefile in Snapper:

.PHONY: package
package: obs-package-from-git
	./$^ \
		-P YaST:Head -p snapper \
		-o .obsdir \
		-c 'make -f Makefile.repo && make package'

# A script that is shared with other projects and should be always refreshed
URL=https://raw.githubusercontent.com/openSUSE/obs-package-from-git/master/obs-package-from-git
.PHONY: always_out_of_date
obs-package-from-git: always_out_of_date
	wget -O $@ $(URL) && chmod +x $@