walk: Move repo walking to 'walk' package (!6067) · Merge requests · GitLab.org / gitaly

Will Chandler requested to merge wc/walk-storages into master Jul 12, 2023

The internalgitaly provides a way to walk a storage's directory tree and iterate over the repositories found, but does not expose this in a way that is easily consumed elsewhere within Gitaly.

Move the storage walking functionality into a new walk package` and take a closure to be run against each repository found to give flexibility to callers.

While we're at it, improve its efficient a bit by switching to filepath.WalkDir and skipping the internal +gitaly directory.

This preparatory work for starting to monitor the number of repositories present on a Gitaly node.

walk: Move repo walking to 'walk' package

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