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From: Usman Akinyemi <usmanakinyemi202@gmail.com>
To: Eric Sunshine <sunshine@sunshineco.com>
Cc: Patrick Steinhardt <ps@pks.im>,
	Usman Akinyemi via GitGitGadget <gitgitgadget@gmail.com>,
	git@vger.kernel.org,
	 Christian Couder <christian.couder@gmail.com>,
	 Phillip Wood Phillip Wood <phillip.wood@dunelm.org.uk>,
	shejialuo <shejialuo@gmail.com>
Subject: Re: [PATCH v3 0/2] [Outreachy][Patch v2] t3404: avoid losing exit status to pipes
Date: Mon, 7 Oct 2024 09:01:49 +0000	[thread overview]
Message-ID: <CAPSxiM9=CzKzjjQCmqeyt5mNf4jFMTwNzN7pzPhAgbLsM8Um+g@mail.gmail.com> (raw)
In-Reply-To: <CAPig+cTGESaCMfCzP7Zt3Y6JmG_uroCn1cd6_12W1QKLU7hk8A@mail.gmail.com>

On Mon, Oct 7, 2024 at 8:11 AM Eric Sunshine <sunshine@sunshineco.com> wrote:
>
> On Mon, Oct 7, 2024 at 4:08 AM Patrick Steinhardt <ps@pks.im> wrote:
> > On Mon, Oct 07, 2024 at 07:25:44AM +0000, Usman Akinyemi wrote:
> > > test $base = $(git rev-parse HEAD^) &&
> > > git show >output &&
> > > grep NEVER output >actual &&
> > > test_must_be_empty actual &&
> >
> > That makes sense. The expectation here is that `output` shouldn't
> > contain the string "NEVER" at all. And as grep(1) would fail when it
> > doesn't find a match the whole test would fail like this. So the below
> > would likely be the best solution.
>
> Thanks. I was just about to respond with the same answer. As a bit of
> extra explanation, the &&-chaining means that every command in the
> chain must return "success" (status 0), but the return code of `grep`
> depends upon whether or not it matched any lines. In this case, it
> returned non-zero which caused the test to fail.
Thanks Eric and Partrick. Thanks for the explanation. I will update
the patch then.

  reply	other threads:[~2024-10-07  9:02 UTC|newest]

Thread overview: 63+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-10-06  5:33 [PATCH 0/2] [Outreachy][Patch v2] t3404: avoid losing exit status to pipes Usman Akinyemi via GitGitGadget
2024-10-06  5:33 ` [PATCH 1/2] [Outreachy][Patch v1] " Usman Akinyemi via GitGitGadget
2024-10-06  5:55   ` Eric Sunshine
2024-10-06  6:31     ` Usman Akinyemi
2024-10-06  5:33 ` [PATCH 2/2] [Outreachy][Patch v2] " Usman Akinyemi via GitGitGadget
2024-10-06  5:48   ` Eric Sunshine
2024-10-06  6:30     ` Usman Akinyemi
2024-10-06  7:28       ` Eric Sunshine
2024-10-06  8:26         ` Usman Akinyemi
2024-10-06  8:31 ` [PATCH v2] [Outreachy][Patch v1] " Usman Akinyemi via GitGitGadget
2024-10-06  9:19   ` Eric Sunshine
2024-10-06  9:32     ` Usman Akinyemi
2024-10-06 10:21       ` Eric Sunshine
2024-10-06 11:12     ` shejialuo
2024-10-06 12:06       ` Eric Sunshine
2024-10-06 12:28         ` Usman Akinyemi
2024-10-06 13:03           ` shejialuo
2024-10-06 13:27             ` Usman Akinyemi
2024-10-06 13:36               ` shejialuo
2024-10-06 12:29         ` shejialuo
2024-10-06 12:46           ` Usman Akinyemi
2024-10-07  4:19           ` Eric Sunshine
2024-10-06 16:06   ` [PATCH v3 0/2] [Outreachy][Patch v2] " Usman Akinyemi via GitGitGadget
2024-10-06 16:06     ` [PATCH v3 1/2] t3404: avoid losing exit status with focus on `git show` and `git cat-files` Usman Akinyemi via GitGitGadget
2024-10-07  6:04       ` Patrick Steinhardt
2024-10-07  8:52       ` phillip.wood123
2024-10-07  9:05         ` Usman Akinyemi
2024-10-06 16:06     ` [PATCH v3 2/2] [Outreachy][Patch v1] t3404: employing test_line_count() to replace test Usman Akinyemi via GitGitGadget
2024-10-06 16:31       ` Kristoffer Haugsbakk
2024-10-07  4:38       ` Eric Sunshine
2024-10-07  6:05       ` Patrick Steinhardt
2024-10-07  7:32         ` Usman Akinyemi
2024-10-07  9:00         ` phillip.wood123
2024-10-06 16:18     ` [PATCH v3 0/2] [Outreachy][Patch v2] t3404: avoid losing exit status to pipes Usman Akinyemi
2024-10-07  4:24       ` Eric Sunshine
2024-10-07  7:25         ` Usman Akinyemi
2024-10-07  8:08           ` Patrick Steinhardt
2024-10-07  8:11             ` Eric Sunshine
2024-10-07  9:01               ` Usman Akinyemi [this message]
2024-10-06 16:21     ` Kristoffer Haugsbakk
2024-10-06 16:26       ` Usman Akinyemi
2024-10-07  5:55         ` Patrick Steinhardt
2024-10-07 10:22     ` [PATCH v4 " Usman Akinyemi via GitGitGadget
2024-10-07 10:22       ` [PATCH v4 1/2] t3404: avoid losing exit status with focus on `git show` and `git cat-file` Usman Akinyemi via GitGitGadget
2024-10-07 10:22       ` [PATCH v4 2/2] [Outreachy][Patch v1] t3404: employing test_line_count() to replace test Usman Akinyemi via GitGitGadget
2024-10-07 10:28         ` Patrick Steinhardt
2024-10-07 10:51       ` [PATCH v5 0/2] [Outreachy][Patch v2] t3404: avoid losing exit status to pipes Usman Akinyemi via GitGitGadget
2024-10-07 10:51         ` [PATCH v5 1/2] t3404: avoid losing exit status with focus on `git show` and `git cat-file` Usman Akinyemi via GitGitGadget
2024-10-07 10:51         ` [PATCH v5 2/2] t3404: employing test_line_count() to replace test Usman Akinyemi via GitGitGadget
2024-10-07 10:54           ` Patrick Steinhardt
2024-10-07 11:10             ` Usman Akinyemi
2024-10-07 11:11         ` [PATCH v6 0/2] [Outreachy][Patch v2] t3404: avoid losing exit status to pipes Usman Akinyemi via GitGitGadget
2024-10-07 11:11           ` [PATCH v6 1/2] t3404: avoid losing exit status with focus on `git show` and `git cat-file` Usman Akinyemi via GitGitGadget
2024-10-07 11:11           ` [PATCH v6 2/2] t3404: employing test_line_count() to replace test Usman Akinyemi via GitGitGadget
2024-10-07 15:07             ` Phillip Wood
2024-10-07 15:32               ` Usman Akinyemi
2024-10-07 11:12           ` [PATCH v6 0/2] [Outreachy][Patch v2] t3404: avoid losing exit status to pipes Patrick Steinhardt
2024-10-07 11:16             ` Usman Akinyemi
2024-10-07 11:32               ` Patrick Steinhardt
2024-10-07 11:44                 ` Usman Akinyemi
2024-10-07 15:32           ` [PATCH v7 " Usman Akinyemi via GitGitGadget
2024-10-07 15:32             ` [PATCH v7 1/2] t3404: avoid losing exit status with focus on `git show` and `git cat-file` Usman Akinyemi via GitGitGadget
2024-10-07 15:32             ` [PATCH v7 2/2] t3404: replace test with test_line_count() Usman Akinyemi via GitGitGadget

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