From: Junio C Hamano <gitster@pobox.com>
Date: Sun, 27 Jan 2013 20:25:26 GMT
Subject: Re: [PATCH] tests: turn on test-lint-shell-syntax by default
Message-ID: <7vip6iv0eh.fsf@alter.siamese.dyndns.org>
In-Reply-To: <7v4ni2y1fm.fsf@alter.siamese.dyndns.org>

Junio C Hamano <gitster@pobox.com> writes:

> If we did not care about incurring runtime performance cost, we
> could arrange:
> ...
> Then you can wrap commands whose use we want to limit, perhaps like
> this, in the test framework:
> ...
> 	sed () {
> ...
> 		done
> 		if test -z "$must_abort"
> 			sed "$@"
> 		fi
> 	}

Of course, aside from missing "then", this needs to use the
real "sed", so this has to be

	if test -z "$must_abort"
        then
		command sed "$@"
	fi

or something like that.

An approach along this line may reduce both the false negatives and
false positives down to an acceptable level, but I doubt the result
would be efficient enough for us to tolerate the runtime penalty.