On Mon, 14 Aug 2017, René Scharfe wrote:
> Am 13.08.2017 um 06:53 schrieb David Adam:
> > I think I have a bug in git (tested 2.11.0 on Debian 8, 2.14.1 on OS X and
> > 2.14.1.145.gb3622a4 on OS X).
> >
> > Given a repository with an export-ignore directive for a subdirectory in
> > .gitattributes, `git archive` with a pathspec that excludes a different
> > subdirectory produces no output file and git exits with -1 as the return
> > status.
>
> Thanks for the thoughtful bug report!
>
> The problem seems to be that archive.c::write_archive_entry() returns 0
> instead of READ_TREE_RECURSIVE for directories with the attribute
> "export-ignore", and archive.c::write_directory() gets caught by
> surprise by that and returns -1, which ends up causing git archive to
> exit with return code 255 without actually writing anything.
>
> This should only happen if you use wildcards like "*", i.e. git archive
> should behave as expected if you spell out the full name of the
> directory. Can you confirm that?
Yes - that's definitely the case.
The reason I am trying to use the wildcard is that using an ":(exclude)b"
pathspec excludes the contents of, but not the actual b directory
itself:
> git archive HEAD ':(top)' ':(exclude)b' | tar t
.gitattributes
b/
Whereas I would like to export the archive without the b directory
entirely.
> The real solution is probably to teach tree-walk.c::do_match() how to
> handle attributes and then inject ":(attr:-export-ignore)" as a default
> internal pathspec in archive.c::parse_pathspec_arg() instead of handling
> it in archive.c::write_archive_entry().
Many thanks
David Adam
zanc...@ucc.gu.uwa.edu.au
