From: Jeff King <peff@peff.net>
Date: Fri, 03 Feb 2012 21:55:07 GMT
Subject: Re: [PATCH] t0300-credentials: Word around a solaris /bin/sh bug
Message-ID: <20120203215507.GB3472@sigill.intra.peff.net>
In-Reply-To: <7vr4ybmvrq.fsf@alter.siamese.dyndns.org>

On Fri, Feb 03, 2012 at 01:50:33PM -0800, Junio C Hamano wrote:

> >   write_script foo.sh "$SHELL_PATH" <<-\EOF
> >     echo my arguments are "$@"
> >   EOF
> 
> I first thought that the order of parameters were unusual, but with that
> order, you could even go something fancier like:
> 
> 	write_script () {
> 		case "$#" in
> 		1)	case "$1" in
> 			*.perl | *.pl) echo "#!$PERL_PATH" ;;
> 			*) echo "#!$SHELL_PATH" ;;
> 			esac
>                 2)	echo "#!$2" ;;
> 		*)	BUG ;;
>                 esac >"$1" &&
>                 cat >>"$1" &&
>                 chmod +x "$1"
> 	}
> 

Nice. I was going to suggest a wrapper like "write_sh_script" so you
didn't have to spell out $SHELL_PATH, but I think the auto-detection
makes sense (and falling back to shell makes even more sense, as that
covers 99% of the cases anyway).

-Peff