Add openqa-bats-review script

[ricardobranco777]

This script is a post-processing fail-hook for BATS tests. It fetches previous cloned BATS jobs to check whether we can tag a job as passed by doing a set intersection of all failed jobs.

Related ticket: https://progress.opensuse.org/issues/186786

TODO

• Plug into openqa-label-known-issues-and-investigate-hook when the job failed.
• Exit early in the above script if not a BATS test (BATS_PACKAGE not in settings).
• Actually tag the job as passed or soft-failed with a ticket: https://progress.opensuse.org/issues/187980

Example runs:

$ openqa-bats-review -n https://openqa.suse.de/tests/18971940
INFO: Processing clone chain: 18971940 -> 18971789 -> 18969737
INFO: Job 18971940 has no .tap.txt logs, skipping
INFO: No common failures across clone chain. Tagging as PASSED.

$ openqa-bats-review -n https://openqa.suse.de/tests/18971796
INFO: Processing clone chain: 18971796 -> 18971172 -> 18969587
INFO: Job 18969587 has no .tap.txt logs, skipping
INFO: No common failures across clone chain. Tagging as PASSED.

$ openqa-bats-review -n https://openqa.opensuse.org/tests/5277036
INFO: Processing clone chain: 5277036 -> 5276893
INFO: No common failures across clone chain. Tagging as PASSED.

$ openqa-bats-review -n https://openqa.opensuse.org/tests/5278048
INFO: Processing clone chain: 5278048 -> 5277036 -> 5276893
INFO: No common failures across clone chain. Tagging as PASSED

$ openqa-bats-review -n https://openqa.suse.de/tests/19007064
INFO: Processing clone chain: 19007064 -> 19006783 -> 19006702 -> 19006031 -> 19001173
INFO: Job 19006783 has no TAP logs, skipping
INFO: Job 19006702 has no TAP logs, skipping
INFO: No common failures across clone chain. Tagging as PASSED.

$ openqa-bats-review -n https://openqa.suse.de/tests/19014878
INFO: Processing clone chain: 19014878 -> 19014581 -> 19014531 -> 19012771
INFO: Common failures found across clone chain: buildah-buildah-user.tap.txt:bud-implicit-no-history

$ openqa-bats-review -n https://openqa.suse.de/tests/19014900
INFO: Processing clone chain: 19014900 -> 19014592 -> 19014540 -> 19012854
ERROR: Common failures found across clone chain: buildah-buildah-user.tap.txt:bud-implicit-no-history

[d3flex]

Also I would like to ask you to laborate on the docstrings.e

[perlpunk]

A unit test would be nice