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From: Eric Sunshine <sunshine@sunshineco.com>
To: Jeff King <peff@peff.net>
Cc: "Đoàn Trần Công Danh" <congdanhqx@gmail.com>,
	"Git List" <git@vger.kernel.org>
Subject: Re: [PATCH 2/6] test-lib-functions: test_cmp: eval $GIT_TEST_CMP
Date: Thu, 19 Mar 2020 12:14:09 -0400	[thread overview]
Message-ID: <CAPig+cSZvhb4H54QZ=m+A+WF5vg6h014cn5JxiB5N4Om-m2tbw@mail.gmail.com> (raw)
In-Reply-To: <20200319160211.GC3513282@coredump.intra.peff.net>

On Thu, Mar 19, 2020 at 12:02 PM Jeff King <peff@peff.net> wrote:
> On Thu, Mar 19, 2020 at 09:00:03PM +0700, Đoàn Trần Công Danh wrote:
> > > test_cmp:1: command not found: diff -u
> >
> > Using `eval` to unquote $GIT_TEST_CMP as same as precedence in `git_editor`.
>
> I do worry that this whitespace splitting behavior could bite us in
> other scripts. Curiously, my version of busybox (1.30.1) doesn't seem to
> have any problem with it, though.

I had the same reaction upon reading the patch. It's not just other
scripts in which the problem might manifest, but a change to the value
of some variable which is used as a command invocation. Providing a
"fix" for this one particular case may help get past test a failure on
Alpine under busybox, but it is not a good general solution. (Some
sort of helper function which smooths away differences like this --
say git_indirect_cmd() or something -- which can be used wherever a
$VARIABLE is invoked as a command might be a better approach, but I
haven't really thought it through.)

  reply	other threads:[~2020-03-19 16:14 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-19 14:00 [PATCH 0/6] fix test failure with busybox Đoàn Trần Công Danh
2020-03-19 14:00 ` [PATCH 1/6] t4061: use POSIX compliance regex(7) Đoàn Trần Công Danh
2020-03-19 15:53   ` Jeff King
2020-03-19 16:01     ` Eric Sunshine
2020-03-19 22:02       ` Junio C Hamano
2020-03-20  1:35         ` Danh Doan
2020-03-19 14:00 ` [PATCH 2/6] test-lib-functions: test_cmp: eval $GIT_TEST_CMP Đoàn Trần Công Danh
2020-03-19 16:02   ` Jeff King
2020-03-19 16:14     ` Eric Sunshine [this message]
2020-03-20  1:29     ` Danh Doan
2020-03-19 14:00 ` [PATCH 3/6] t5003: skip conversion test if unzip -a is unavailable Đoàn Trần Công Danh
2020-03-19 16:03   ` Jeff King
2020-03-20  0:39     ` Danh Doan
2020-03-20  5:32       ` Jeff King
2020-03-19 14:00 ` [PATCH 4/6] t5616: use rev-parse instead to get HEAD's object_id Đoàn Trần Công Danh
2020-03-19 16:07   ` Jeff King
2020-03-20  0:57     ` Danh Doan
2020-03-19 14:00 ` [PATCH 5/6] t7063: use POSIX find(1) syntax Đoàn Trần Công Danh
2020-03-19 16:12   ` Jeff King
2020-03-19 22:16     ` Junio C Hamano
2020-03-20  1:41       ` Danh Doan
2020-03-20  2:20         ` Danh Doan
2020-03-20  5:37         ` Jeff King
2020-03-22  0:37           ` Danh Doan
2020-03-22  6:05             ` Jeff King
2020-03-19 14:00 ` [PATCH 6/6] t4124: fix test for non-compliance diff Đoàn Trần Công Danh
2020-03-19 16:33   ` Jeff King
2020-03-19 22:58     ` Junio C Hamano
2020-03-20  5:20       ` Jeff King
2020-03-20  1:52     ` Danh Doan
2020-03-20  5:23       ` Jeff King
2020-03-19 15:51 ` [PATCH 0/6] fix test failure with busybox Jeff King
2020-03-20  0:37   ` Danh Doan
2020-03-20  5:30     ` Jeff King
2020-03-19 16:34 ` Jeff King

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