tree 6258ca946bdce16d5d26ca7f1f9f6b3401418f1a
parent fd21061500029e6386da2bc5716fe2a808782fc1
author Luca Milanesio <luca.milanesio@gmail.com> 1700270671 +0000
committer Daniele Sassoli <danielesassoli@gmail.com> 1706018657 -0800

Contribute packed-refs.lock staleness checker

Add a general utility that exposes the age of the packed-refs.lock
file as a metric

The presence of $GIT_DIR/packed-refs.lock prevents multiple
threads or processes from updating the packed-refs file
concurrently. However, if one of the threads or processes
dies in the middle of updating the refs, the repository
packed-refs are locked forever.

The list of projects prefixes, the frequency of the checks
and the max age for a lock file for being considered stale is
configurable as plugin setting in gerrit.config.

Change-Id: Ie8714f28e1191b1ef255d1aeffa1ca6a73a6a959