From: Philip Oakley <philipoakley@iee.email>
To: Matt Rogers <mattr94@gmail.com>
Cc: Junio C Hamano <gitster@pobox.com>,
Phillip Wood <phillip.wood123@gmail.com>,
Matt R via GitGitGadget <gitgitgadget@gmail.com>,
git@vger.kernel.org
Subject: Re: [PATCH 1/1] rebase -r: let `label` generate safer labels
Date: Mon, 2 Sep 2019 23:13:17 +0100 [thread overview]
Message-ID: <b39e5215-f5d6-eca3-7f08-813b5508d779@iee.email> (raw)
In-Reply-To: <CAOjrSZtw+wYHxFRQCfb80xzm9OsGDh2rW8uD+AYYdmDPxk5DFQ@mail.gmail.com>
On 02/09/2019 22:47, Matt Rogers wrote:
> I can redo the commit, I had thought that I had previously fixed the
> author but I guess I was mistaken.
>
> As for issues with non utf-8 encodings, I don't know of any simple way
> to check for those except for restricting to asci alphanumeric characters
If I read the Wikipedia article [1] about the utf-8 design choices it is
pretty reasonable and robust most of the time, though that maybe a part
one way trapdoor.
> Also the code given doesn't resolve onelines that consist only of
> restricted file names (e.g. COM, NUL, etc. On windows)
It maybe that the rebase doc may need (if it happens) a short comment
warning of that.
Also need to check if the `label_oid()` function actually makes the
label distinct, hence prevents such labels from being used as such a
restricted file name - i.e. does it include the oid element.
Ultimately the label could be tweaked to have say the 4char prefix to
fool the Windows 'starts with' name detection - which assumes I
understand how some of those bad filenames are detected...
>
>
>
> On Mon, Sep 2, 2019, 5:24 PM Philip Oakley <philipoakley@iee.email> wrote:
>
> On 02/09/2019 19:29, Junio C Hamano wrote:
> > I see there are "lets make sure it is unique by suffixing "-%d" in
> > other codepaths; would that help if this piece of code yields a
> > label that is not unique?
> maybe use a trailing 4 characters of the oid to get a reasonably
> unique
> label?
>
> Oh, just seen dscho's "we make sure that the labels are unique,
> via the
> `label_oid()` function!", maybe needs mentioning in the commit
> message
> if re-rolled.
>
> Philip
>
[1] https://en.wikipedia.org/wiki/UTF-8#Description
next prev parent reply other threads:[~2019-09-02 22:13 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-02 14:01 [PATCH 0/1] Make git rebase -r's label generation more resilient Johannes Schindelin via GitGitGadget
2019-09-02 14:01 ` [PATCH 1/1] rebase -r: let `label` generate safer labels Matt R via GitGitGadget
2019-09-02 17:57 ` Phillip Wood
2019-09-02 18:29 ` Junio C Hamano
2019-09-02 20:12 ` brian m. carlson
2019-09-02 21:24 ` Philip Oakley
[not found] ` <CAOjrSZtw+wYHxFRQCfb80xzm9OsGDh2rW8uD+AYYdmDPxk5DFQ@mail.gmail.com>
2019-09-02 22:13 ` Philip Oakley [this message]
2019-09-03 11:19 ` Johannes Schindelin
2019-09-03 19:51 ` Junio C Hamano
2019-09-03 22:40 ` Matt Rogers
2019-09-02 19:42 ` Johannes Schindelin
2019-09-03 18:10 ` Junio C Hamano
2019-11-18 20:51 ` Johannes Schindelin
2019-11-17 23:16 ` [PATCH v2 0/2] Make git rebase -r's label generation more resilient Johannes Schindelin via GitGitGadget
2019-11-17 23:16 ` [PATCH v2 1/2] rebase-merges: move labels' whitespace mangling into `label_oid()` Johannes Schindelin via GitGitGadget
2019-11-17 23:16 ` [PATCH v2 2/2] rebase -r: let `label` generate safer labels Matthew Rogers via GitGitGadget
2019-11-18 3:42 ` [PATCH v2 0/2] Make git rebase -r's label generation more resilient Junio C Hamano
2019-11-18 11:23 ` [PATCH] sequencer: handle rebase-merge for "onto" message Danh Doan
2019-11-18 11:57 ` [PATCH v2] sequencer: handle rebase-merges " Doan Tran Cong Danh
2019-11-18 20:15 ` Johannes Schindelin
2019-11-21 0:16 ` [PATCH] sequencer: handle rebase-merge " Junio C Hamano
2019-11-18 20:52 ` [PATCH v2 0/2] Make git rebase -r's label generation more resilient Johannes Schindelin
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