Re: [PATCH v2 3/3] test-lib.sh: support -x option for shell-tracing

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Jeff King <peff@xxxxxxxx> writes:

>> Hmph. I had originally intended to make this "set -x;" with a semicolon,
>> to keep it split from $*. But I forgot to, and much to my surprise, all
>> of the tests still passed.

Yup, I was wondering why you posted a version without the semicolon,
which looked obviously bogus, as I've never seen you post an
untested thing without marking as such.

> +	# The test itself is run with stderr put back to &4 (so either to
> +	# /dev/null, or to the original stderr if --verbose was used).
> +	{
> +		test_eval_inner_ "$@" </dev/null >&3 2>&4
> +		test_eval_ret_=$?
> +		if test "$trace" = t
> +		then
> +			set +x
> +			if test "$test_eval_ret_" != 0
> +			then
> +				say_color error >&4 "error: last command exited with \$?=$test_eval_ret_"
> +			fi
> +		fi
> +	} 2>/dev/null

Hmph, that is a clever way to squelch output from set+x (and
everything that runs after the eval returns) I never thought of.

Nice.
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