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Re: `git add <<windows 8.3 path to file inside repo>>` results in "fatal: ... is outside repository"




Hey Anthony,

Are you sure that you have 8.3 active on the partition you are using?
IIRC, It is not on by default anymore.  To see, go to a cmd line and
type "dir /x".  If there are any files that exceed the 8.3 format, it
will show those files with two names, the 8.3 name and the long name.

If it is off and you want to turn it on, see
https://support.microsoft.com/en-ca/help/121007/how-to-disable-8-3-file-name-creation-on-ntfs-partitions.
and https://docs.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2012-R2-and-2012/ff621566(v=ws.11)
for more information.


A

On Mon, Mar 11, 2019 at 2:18 PM Anthony Sottile <asottile@xxxxxxxxx> wrote:
>
> On Mon, Mar 11, 2019 at 10:55 AM Torsten Bögershausen <tboegi@xxxxxx> wrote:
> >
> > On Mon, Mar 11, 2019 at 06:48:11PM +0100, Johannes Sixt wrote:
> > > Am 10.03.19 um 23:41 schrieb Anthony Sottile:
> > > > git init longname-repo
> > > > cd longname-repo
> > > > touch f
> > > > git add ..\longna~1\f
> > > >
> > > ...
> > > >
> > > > C:\Users\Anthony\AppData\Local\Temp\t\pre-commit-hooks\longname-repo>git
> > > > add ..\longna~1\f
> > > > fatal: ..\longna~1\f: '..\longna~1\f' is outside repository
> > >
> > > This has nothing to do with long vs. short path names. It would report
> > > the same error when you say
> > >
> > >   git add ..\longname-repo\f
> > >
> > > -- Hannes
> >
> > You can probably do another test:
> >
> >  mkdir longname-rexxx
> >  git init longname-repo
> >  cd longname-repo
> >  touch f
> >  git add ..\longna~1\f
> >
> > And now nobody knows for shure if "longna~1"
> > is longname-rexxx or longname-repo
> >
> > It may happen that it is longname-rep at this point in time,
> > at your machine.
> > It may happen that it is a complete different directory on another machine,
> > or even on your machine.
> > For that reason, to avoid that someone tampers data outside a repo,
> > "../" (or ..\ under windows) is not accepted by Git.
>
> the same can be said for `git add /full/path/to/repo/file` as any of
> those components could be symlinks.
>
> However that is currently allowed
>
> Note also I've updated my report, it isn't about relative paths any
> more but about full paths with 8.3 paths
>
> Note that 8.3 filanames do canonically disambiguate themselves, the
> number after the tilde is used to refer to filenames alphabetically
>
> This report is very similar to the change that happened to
> disambiguate drive letters in
> https://github.com/git/git/commit/d8727b3687c1d249e84be71a581cc1fb0581336a
>
>
> > Oops, I misreported while trying to minimize my reproduction
> >
> > Here's an accurate bug report
> >
> > git properly handles this:
> >
> >     git add C:\full\path\to\longname-repo\file
> >
> > When the root of the repo root is `C:\full\path\to\longname-repo`
> >
> > But it does not handle the equivalent 8.3 path:
> >
> >     git add C:\full\path\to\longna~1\file