From: Johannes Schindelin <Johannes.Schindelin@gmx.de>
To: Duy Nguyen <pclouds@gmail.com>
Cc: gitgitgadget@gmail.com, Git Mailing List <git@vger.kernel.org>,
Junio C Hamano <gitster@pobox.com>
Subject: Re: [PATCH 2/2] repack -ad: prune the list of shallow commits
Date: Thu, 19 Jul 2018 19:50:03 +0200 (DST) [thread overview]
Message-ID: <nycvar.QRO.7.76.6.1807191949150.71@tvgsbejvaqbjf.bet> (raw)
In-Reply-To: <CACsJy8Cxp6Gtt3YdWvQ0=t4vqBAqNxrGPeY4B7mtjsiLNpG5TQ@mail.gmail.com>
Hi,
On Tue, 17 Jul 2018, Duy Nguyen wrote:
> On Tue, Jul 17, 2018 at 6:39 PM Duy Nguyen <pclouds@gmail.com> wrote:
> >
> > On Fri, Jul 13, 2018 at 10:19 PM Johannes Schindelin via GitGitGadget
> > <gitgitgadget@gmail.com> wrote:
> > >
> > > From: Johannes Schindelin <johannes.schindelin@gmx.de>
> > >
> > > While it is true that we never add unreachable commits into pack files
> > > intentionally (as `git repack`'s documentation states), we must not
> > > forget that a `git fetch --prune` (or even a `git fetch` when a ref was
> > > force-pushed in the meantime) can make a commit unreachable that was
> > > reachable before.
> > >
> > > Therefore it is not safe to assume that a `git repack -adlf` will keep
> > > unreachable commits alone (under the assumption that they had not been
> > > packed in the first place).
> > >
> > > This is particularly important to keep in mind when looking at the
> > > `.git/shallow` file: if any commits listed in that file become
> > > unreachable, it is not a problem, but if they go missing, it *is* a
> > > problem. One symptom of this problem is that a deepening fetch may now
> > > fail with
> > >
> > > fatal: error in object: unshallow <commit-hash>
> > >
> >
> > Could you elaborate a bit more?
>
> Never mind. The problem is described in another patch.. sigh.. I
> understand you want to flip that "failure" to "success" but personally
> I don't think it worth it to look back in history and have "what?"
> moments like when I read this patch alone.
The split was not meant for your benefit, but for the benefit of verifying
that I indeed fixed a problem.
I don't think it is a wise idea to squash them together.
Ciao,
Dscho
next prev parent reply other threads:[~2018-07-19 17:50 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-13 20:18 [PATCH 0/2] repack -ad: fix after `fetch --prune` in a shallow repository Johannes Schindelin via GitGitGadget
2018-07-11 22:17 ` [PATCH 1/2] repack: point out a bug handling stale shallow info Johannes Schindelin via GitGitGadget
2018-07-11 22:23 ` [PATCH 2/2] repack -ad: prune the list of shallow commits Johannes Schindelin via GitGitGadget
2018-07-13 20:31 ` Jeff King
2018-07-14 21:56 ` Johannes Schindelin
2018-07-16 17:36 ` Jeff King
2018-07-17 16:25 ` Junio C Hamano
2018-07-19 16:42 ` Johannes Schindelin
2018-07-19 20:49 ` Junio C Hamano
2018-07-20 9:30 ` Junio C Hamano
2018-07-20 19:31 ` Jeff King
2018-07-17 17:28 ` Duy Nguyen
2018-07-17 19:41 ` Jeff King
2018-07-18 17:31 ` Duy Nguyen
2018-07-18 17:45 ` Jeff King
2018-07-18 17:48 ` Duy Nguyen
2018-07-17 16:39 ` Duy Nguyen
2018-07-17 16:48 ` Duy Nguyen
2018-07-19 17:50 ` Johannes Schindelin [this message]
2018-07-17 13:51 ` [PATCH v2 0/2] repack -ad: fix after `fetch --prune` in a shallow repository Johannes Schindelin via GitGitGadget
2018-07-17 13:51 ` [PATCH v2 1/2] repack: point out a bug handling stale shallow info Johannes Schindelin via GitGitGadget
2018-07-17 13:51 ` [PATCH v2 2/2] repack -ad: prune the list of shallow commits Johannes Schindelin via GitGitGadget
2018-07-17 17:45 ` Eric Sunshine
2018-07-17 19:15 ` [PATCH v2 0/2] repack -ad: fix after `fetch --prune` in a shallow repository Jeff King
2018-07-17 19:20 ` Jeff King
2018-07-19 17:48 ` Johannes Schindelin
2018-10-22 22:05 ` [PATCH v3 0/3] repack -ad: fix after fetch --prune " Johannes Schindelin via GitGitGadget
2018-10-22 22:05 ` [PATCH v3 1/3] repack: point out a bug handling stale shallow info Johannes Schindelin via GitGitGadget
2018-10-24 3:39 ` Junio C Hamano
2018-10-24 8:12 ` Johannes Schindelin
2018-10-24 8:38 ` Johannes Schindelin
2018-10-22 22:05 ` [PATCH v3 2/3] shallow: offer to prune only non-existing entries Johannes Schindelin via GitGitGadget
2018-10-24 3:47 ` Junio C Hamano
2018-10-24 8:01 ` Johannes Schindelin
2018-10-24 15:56 ` Johannes Schindelin
2018-10-25 18:54 ` Jonathan Tan
2018-10-26 7:59 ` Johannes Schindelin
2018-10-26 20:49 ` Jonathan Tan
2018-10-29 20:45 ` Johannes Schindelin
2018-10-22 22:05 ` [PATCH v3 3/3] repack -ad: prune the list of shallow commits Johannes Schindelin via GitGitGadget
2018-10-24 3:56 ` Junio C Hamano
2018-10-24 8:02 ` Johannes Schindelin
2018-10-23 10:15 ` [PATCH v3 0/3] repack -ad: fix after fetch --prune in a shallow repository Johannes Schindelin
2018-10-24 15:56 ` [PATCH v4 " Johannes Schindelin via GitGitGadget
2018-10-24 15:56 ` [PATCH v4 1/3] repack: point out a bug handling stale shallow info Johannes Schindelin via GitGitGadget
2018-10-24 15:56 ` [PATCH v4 2/3] shallow: offer to prune only non-existing entries Johannes Schindelin via GitGitGadget
2018-10-24 15:56 ` [PATCH v4 3/3] repack -ad: prune the list of shallow commits Johannes Schindelin via GitGitGadget
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