Re: Passing tar(1) options via git-archive(1)

From: Daniel Brockman <daniel@brockman.se>
Date: Sep 24, 2014, 01:26 UTC
Message-ID: <87k34tizb5.fsf@brockman.se>
In-Reply-To: <20140924001522.GB6920@vauxhall.crustytoothpaste.net>

"brian m. carlson" <sandals@crustytoothpaste.net> writes:

> Git does not invoke tar(1).  It has its own tar (actually, pax)
> implementation, so any options would have to be implemented in Git.
> We'd probably want to make such a change effective in the zip format
> as well.

Ah, I see...

Well, I guess in the meantime I'll just do this:

   git commit -m dummy --allow-empty --date=1970-01-01T00:00:00Z
   git archive HEAD | docker build -
   git reset HEAD~

Or even (slightly more atomically) this:

   git archive HEAD | { tmpdir=`mktemp -d` && tar x -C"$tmpdir" &&
     tar c -C"$tmpdir" --mtime=1970-01-01T00:00:00Z . &&
     rm -r "$tmpdir"; } | docker build -