Re: fast-import fails in read-only tree

From: Andreas Schwab <schwab@linux-m68k.org>
Date: Jan 30, 2016, 09:05 UTC
Message-ID: <m2oac31lp2.fsf@linux-m68k.org>
In-Reply-To: <20160130051340.GA1677@sigill.intra.peff.net>

Jeff King <peff@peff.net> writes:

> If you're really going to do a lot of interactive back-and-forth access
> of objects, though, I think you want to set up pipes to cat-file. It's a
> little tedious to allocate fifos, but something like:

With bash's coproc it's a bit less tedious:

Show 6 quoted lines

>   mkfifo in out
>   (exec git cat-file --batch <in >out) &
>   exec 8>in
>   exec 9<out
>   echo $sha >&8
>   read mode type size <&9

    coproc CAT_FILE git cat-file --batch
    echo $sha >&${CAT_FILE[1]}
    read mode type size <&${CAT_FILE[0]}

Andreas.

-- 
Andreas Schwab, schwab@linux-m68k.org
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