Re: [PATCH 3/3] Makefile: split prefix flags from GIT-CFLAGS

From: Junio C Hamano <gitster@pobox.com>
Date: Jun 19, 2012, 23:58 UTC
Message-ID: <7vy5nix3ao.fsf@alter.siamese.dyndns.org>
In-Reply-To: <20120619233659.GA6621@sigill.intra.peff.net>

Jeff King <peff@peff.net> writes:

> Of course, I am probably one of the few people in the world who actually
> wants to have 50 built versions of git on hand.

I have this script as "rungit" on my PATH and "rungit -l" shows 110+ variants. So at least there are two ;-)

-- >8 -- #!/bin/sh # Run various vintage of git

variant="${0##*/}" &&
: ${RUNGIT_BASE=$HOME/g} &&
case "$variant" in
rungit)
	case $# in 
	0)
		echo >&2 "which version?"
		exit 1
		;;
	esac
	variant=$1
	shift
	;;
esac &&
case "$variant" in
-l)
	for d in "$RUNGIT_BASE/"git-*/bin/git
	do
		d=$(basename ${d%/bin/git})
		d=${d#git-}
		d=${d#snap-}
		echo "$d"
	done
	exit
	;;
git-*)
	variant=${variant#git-} ;;
v[0-9]*)
	variant=snap-$variant ;;
esac &&
d="$RUNGIT_BASE/git-$variant" &&
if test -f "$d/bin/git"
then
	exec "$d/bin/git" "$@"
else
	echo >&2 "$variant: No such variant for $a"
	exit 1
fi