On Tue, Nov 27 2018, Bryan Turner wrote: > Something of an odd question, but is there something I can do in the > configuration for a repository that forces any "git gc" run in that > repository to always fail without doing anything? (Ideally I'd like to > make "git reflog expire" _also_ fail.) > > Background: For Bitbucket Server, we have a fairly recurrent issue > where administrators decide they know how to manage garbage collection > for our repositories better than we do, so they jump on the server and > start running things like this: > > git reflog expire --expire=now –all > git gc --prune=now > git repack -adf --window=200 --depth=200 > > They then come running to us with their corrupted repository expecting > and/or hoping that we can fix it (often without proper backups). > > Bitbucket Server itself never runs "git gc" (or "git reflog expire"). > We've configured how reflog expiry should be handled, but of course > that's overridden by explicit command line options like > "--expire=now". We _do_ run "git pack-refs", "git repack" and "git > prune" (with various options), so those commands need to continue to > work. > > Is there anything I can set, perhaps some invalid configuration > option/value, that will make "git gc" (most important) and "git > reflog" (ideal, but less important) fail when they're run in our > repositories? Hopefully at that point customers will reach out to us > for help _before_ they corrupt their repositories. You could fix this and so many other issues by just hanging up a "Is This Good For The Company?" banner up in Atlassian offices . But more seriously: $ stahp='Bryan.Turner.will.hunt.you.down.if.you.manually.run.gc' && git -c gc.pruneExpire=$stahp gc; git -c gc.reflogExpire=$stahp reflog expire error: Invalid gc.pruneexpire: 'Bryan.Turner.will.hunt.you.down.if.you.manually.run.gc' fatal: unable to parse 'gc.pruneexpire' from command-line config error: 'Bryan.Turner.will.hunt.you.down.if.you.manually.run.gc' for 'gc.reflogexpire' is not a valid timestamp fatal: unable to parse 'gc.reflogexpire' from command-line config