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From: Junio C Hamano <gitster@pobox.com>
To: Ben Peart <benpeart@microsoft.com>
Cc: "git\@vger.kernel.org" <git@vger.kernel.org>,
	"t.gummerer\@gmail.com" <t.gummerer@gmail.com>,
	"avarab\@gmail.com" <avarab@gmail.com>,
	Ben Peart <Ben.Peart@microsoft.com>
Subject: Re: [PATCH v1 2/4] fsmonitor: update GIT_TEST_FSMONITOR support
Date: Fri, 14 Sep 2018 09:59:24 -0700	[thread overview]
Message-ID: <xmqqmuskc8wj.fsf@gitster-ct.c.googlers.com> (raw)
In-Reply-To: <20180914143708.63024-3-benpeart@microsoft.com> (Ben Peart's message of "Fri, 14 Sep 2018 14:37:27 +0000")

Ben Peart <benpeart@microsoft.com> writes:

> +if test -n "$GIT_FSMONITOR_TEST"
> +then
> +	if test -n "$GIT_TEST_FSMONITOR"
> +	then
> +		echo "warning: the GIT_FSMONITOR_TEST variable has been renamed to GIT_TEST_FSMONITOR"
> +	else
> +		echo "error: the GIT_FSMONITOR_TEST variable has been renamed to GIT_TEST_FSMONITOR"
> +		exit 1
> +	fi
> +fi

I would have expected that, because we are now doing multiple pairs
of variables in a single series, we would add a helper function that
can be called like so:

	check_var_migration GIT_FSMONITOR_TEST GIT_TEST_FSMONITOR

in the earliest step.  Perhaps something like this.

check_var_migration () {
	old_name=$1 new_name=$2
	eval "old_isset=\${${old_name}:+isset}"
	eval "new_isset=\${${new_name}:+isset}"
	case "$old_isset,$new_isset" in
	isset,)
		echo >&2 "error: $old_name is now $new_name"
		exit 1 ;;
	isset,isset)
		# enable this, once $old_name no longer is valid anywhere
		# echo >&2 "warning: $old_name is now $new_name"
		# echo >&2 "hint: remove $old_name"
		;;
	esac
}


  reply	other threads:[~2018-09-14 16:59 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-14 14:37 [PATCH v1 0/4] Cleanup pass on special test setups Ben Peart
2018-09-14 14:37 ` [PATCH v1 1/4] correct typo/spelling error in t/README Ben Peart
2018-09-14 14:37 ` [PATCH v1 2/4] fsmonitor: update GIT_TEST_FSMONITOR support Ben Peart
2018-09-14 16:59   ` Junio C Hamano [this message]
2018-09-14 17:03     ` Junio C Hamano
2018-09-14 17:15   ` Junio C Hamano
2018-09-14 18:05     ` Ben Peart
2018-09-14 18:18       ` Junio C Hamano
2018-09-14 20:13       ` [PATCH v2 0/5] Cleanup pass on special test setups Ben Peart
2018-09-14 20:13         ` [PATCH v2 1/5] correct typo/spelling error in t/README Ben Peart
2018-09-14 20:43           ` Jonathan Nieder
2018-09-14 20:14         ` [PATCH v2 2/5] preload-index: teach GIT_FORCE_PRELOAD_TEST to take a boolean Ben Peart
2018-09-14 20:51           ` Jonathan Nieder
2018-09-14 21:54             ` Junio C Hamano
2018-09-14 20:14         ` [PATCH v2 3/5] fsmonitor: update GIT_TEST_FSMONITOR support Ben Peart
2018-09-14 20:14         ` [PATCH v2 4/5] read-cache: update TEST_GIT_INDEX_VERSION support Ben Peart
2018-09-14 22:13           ` Junio C Hamano
2018-09-14 22:26             ` Junio C Hamano
2018-09-14 20:14         ` [PATCH v2 5/5] preload-index: update GIT_FORCE_PRELOAD_TEST support Ben Peart
2018-09-14 14:37 ` [PATCH v1 3/4] read-cache: update TEST_GIT_INDEX_VERSION support Ben Peart
2018-09-14 14:37 ` [PATCH v1 4/4] preload-index: update GIT_FORCE_PRELOAD_TEST support Ben Peart
2018-09-18 23:29 ` [PATCH v3 0/5] Cleanup pass on special test setups Ben Peart
2018-09-18 23:29   ` [PATCH v3 1/5] t/README: correct spelling of "uncommon" Ben Peart
2018-09-18 23:29   ` [PATCH v3 2/5] preload-index: use git_env_bool() not getenv() for customization Ben Peart
2018-09-18 23:29   ` [PATCH v3 3/5] fsmonitor: update GIT_TEST_FSMONITOR support Ben Peart
2018-09-28 10:01     ` SZEDER Gábor
2018-09-28 14:21       ` Ben Peart
2018-09-28 14:27         ` Ben Peart
2018-09-28 18:43           ` Junio C Hamano
2018-09-18 23:29   ` [PATCH v3 4/5] read-cache: update TEST_GIT_INDEX_VERSION support Ben Peart
2018-09-18 23:29   ` [PATCH v3 5/5] preload-index: update GIT_FORCE_PRELOAD_TEST support Ben Peart
2018-09-20 18:43   ` Re*: [PATCH v3 0/5] Cleanup pass on special test setups Junio C Hamano
2018-09-25 18:44     ` Ben Peart

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