From: Junio C Hamano <gitster@pobox.com>
To: Jonathan Nieder <jrnieder@gmail.com>
Cc: git@vger.kernel.org
Subject: Re: [PATCH v2] tests: lint for run-away here-doc
Date: Thu, 23 Mar 2017 19:45:16 -0700 [thread overview]
Message-ID: <xmqq37e39yv7.fsf@gitster.mtv.corp.google.com> (raw)
In-Reply-To: <20170324012912.GH20794@aiede.mtv.corp.google.com> (Jonathan Nieder's message of "Thu, 23 Mar 2017 18:29:12 -0700")
Jonathan Nieder <jrnieder@gmail.com> writes:
>> without failure (e.g. "cat" in the above example), which makes the
>> command appear to work, without eve executing the remainder of the
>
> s/eve/ever/
Oops.
>> + if test "OK-117" != "$(test_eval_ "(exit 117) && $1${LF}${LF}echo OK-\$?" 3>&1)"
>> + then
>> + error "bug in the test script: broken &&-chain or run-away HERE-DOC: $1"
>> fi
>
> Neat. Why the double-LF?
The main part of "Neat" was your invention ;-).
Imagining how the string passed to eval looked, having two LFs was
the easiest way to ensure that there is a blank line before the new
"echo" (not just the last line in $1 and "echo" are on different
lines), which was more visually pleasing. There was no any real
functional requirement.
> In some shells, the 3>&1 will last past the function call.
> Fortunately, the $() substitution creates a subshell so this doesn't
> affect anything later on.
Yes, a subshell solves quite lot of problems (while possibly
introducing others, though ;-).
> test_eval_inner_ contains a warning not to append anything after the
> commands to be evaluated, since whatever you append would pollute -x
> tracing output. Fortunately, in this context we have already set
> trace= so the warning does not apply.
>
>
> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Thanks.
next prev parent reply other threads:[~2017-03-24 2:45 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-22 17:35 EOF test fixes (t5615/t7004) Jan Palus
2017-03-22 18:28 ` EOF test fixes (t7030/t7406) Jan Palus
2017-03-22 18:47 ` EOF test fixes (t5615/t7004) Stefan Beller
2017-03-22 19:43 ` Junio C Hamano
2017-03-22 20:08 ` [PATCH 0/3] fix "here-doc" syntax errors Junio C Hamano
2017-03-22 20:08 ` [PATCH 1/3] t5615: fix a here-doc syntax error Junio C Hamano
2017-03-22 21:02 ` Jeff King
2017-03-22 20:08 ` [PATCH 2/3] t7406: fix here-doc syntax errors Junio C Hamano
2017-03-22 21:07 ` Jeff King
2017-03-22 21:32 ` Stefan Beller
2017-03-22 21:39 ` Jeff King
2017-03-22 21:49 ` [PATCH] t7406: correct test case for submodule-update initial population Stefan Beller
2017-03-22 21:59 ` Jeff King
2017-03-22 22:07 ` Stefan Beller
2017-03-22 22:09 ` Jeff King
2017-03-22 22:14 ` Jonathan Nieder
2017-03-22 22:12 ` Junio C Hamano
2017-03-22 22:24 ` Jeff King
2017-03-22 22:28 ` Stefan Beller
2017-03-22 21:34 ` [PATCH 2/3] t7406: fix here-doc syntax errors Junio C Hamano
2017-03-22 20:08 ` [PATCH 3/3] t7004, t7030: " Junio C Hamano
2017-03-22 21:10 ` Jeff King
2017-03-22 21:43 ` Santiago Torres
2017-03-22 22:04 ` Jeff King
2017-03-22 22:04 ` Junio C Hamano
2017-03-22 22:15 ` Santiago Torres
2017-03-22 22:22 ` Jeff King
2017-03-22 22:34 ` Santiago Torres
2017-03-22 22:41 ` Jeff King
2017-03-22 22:47 ` Junio C Hamano
2017-03-22 22:51 ` Santiago Torres
2017-03-23 22:00 ` Junio C Hamano
2017-03-23 22:28 ` Santiago Torres
2017-03-23 23:49 ` Jeff King
2017-03-24 16:45 ` Junio C Hamano
2017-03-24 16:49 ` Jeff King
2017-03-24 18:00 ` Jeff King
2017-03-24 18:04 ` Junio C Hamano
2017-03-24 18:16 ` Jeff King
2017-03-22 22:38 ` Junio C Hamano
2017-03-22 22:40 ` [PATCH 0/3] fix "here-doc" " Jan Palus
2017-03-23 2:12 ` [PATCH] tests: lint for run-away here-doc Junio C Hamano
2017-03-23 5:43 ` [PATCH v2] " Junio C Hamano
2017-03-24 1:29 ` Jonathan Nieder
2017-03-24 2:45 ` Junio C Hamano [this message]
2017-03-24 3:59 ` Jeff King
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