Add contrib/jenkins-build-manuals.sh, which clones or updates
osmo-gsm-manuals and builds the manuals. When the environment variable
PUBLISH=1 is set, it also uploads them.
Call jenkins-build-manuals.sh from jenkins-run.sh, without PUBLISH=1,
so the manuals get build-tested in the osmo-gsm-tester_gerrit job.
A new job master-osmo-gsm-tester will be added in the future, which
will run PUBLISH=1 jenkins-build-manuals.sh.
The jenkins-build-manuals.sh script does not use the osmo-ci.git
scripts for installing dependencies and cleaning up the workspace.
These scripts are not available on the node, which runs the
osmo-gsm-tester_gerrit job, and it is not trivial to add just them
(without building the osmo-ci Docker image etc.). The only dependency
is osmo-gsm-manuals, and it does not need to be compiled, so it seemed
to be the most maintainable solution to implement the clone/update and
clean up in a few lines of shell code instead.
Related: OS#3385
Change-Id: I4ebfe12a164f807b63bc897aff44db83fc0705bd
Oliver Smith
Neels Hofmeyr