Re: 2.8.0 gitignore enhancement not working as expected

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On Fri, Mar 18, 2016 at 4:31 PM, Richard Furness -X (rfurness - ENSOFT
LIMITED at Cisco) <rfurness@xxxxxxxxx> wrote:
> Hi,
>
> I've been testing out git 2.8.0 rc3 due to having a particular interest in this enhancement from the changelog:
> " Another try to improve the ignore mechanism that lets you say "this
>    is excluded" and then later say "oh, no, this part (that is a
>    subset of the previous part) is not excluded".  This has still a
>    known limitation, though."
>
> Currently, in order to include ONLY the files under a/b/c I have the following in .gitignore:
> /*             - Ignore everything
> !/a             - Except directory "a"
> /a/*            - Ignore all sub-directories of "a/"
> !/a/b           - Except "a/b"
> /a/b/*          - Ignore all sub-directories of "a/b/"
> !/a/b/c         - Except "a/b/c"
>
> My hope was that with this enhancement I could massively simplify this to:
> /*             - Ignore everything
> !a/b/c      - Except "a/b/c"
>
> However this doesn't seem to work - instead I find that NOTHING is ignored (i.e. it's as if the 2nd line completely cancels the first).

Interesting. It seems to be working for me. This is my test setup

> /tmp/abc $ find * -type f
1
a/1
a/b/1
a/b/c
> /tmp/abc $ cat .gitignore
/*
!a/b/c

and the results

> /tmp/abc $ ~/w/git/temp/git --version
git version 2.8.0.rc3
> /tmp/abc $ ~/w/git/temp/git ls-files -o --exclude-standard
a/b/c

Can you do "GIT_TRACE_EXCLUDE=1 git ls-files -o --exclude-standard"
and post the output?
-- 
Duy
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