When gitlab prepares a job to run, it checks out the repository with a
non-root user, and spawns a container that runs as root, with some UID
mapping that makes the files be owned by root in the
container. However, our pipelines run as a nont-root user.
Commit bde165f7ad (.gitlab-ci.yml: update Docker image to use) updated
the docker image that is used to run in our pipelines.
That new image includes a git version that is stricter about the
ownership of the git tree it is acting in: git aborts in error when the
user running it does not own the repository.
We use `git ls-tree` quite a lot in our check-{flake8,package,symbols}
rules, so they all fail (in various ways).
To fix this, we either need to fix the ownership or tell git to ignore
the situation. In either case, we'll need to run a scriptlet before all
our jobs.
Gitlab-ci allows to provide a global before_script, that is inherited by
all jobs. However, some of our jobs already declare a before_script, and
that would shadow the global before_script.
There is no technical reason to do our before_script separately from
the actual script, so we move the code from the before_scripts to the
corresponding scripts.
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Cc: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Cc: Romain Naour <romain.naour@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Reviewed-by: Romain Naour <romain.naour@smile.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>