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From: Eric Sunshine <sunshine@sunshineco.com>
To: "Ævar Arnfjörð Bjarmason" <avarab@gmail.com>
Cc: "Git List" <git@vger.kernel.org>,
	"Junio C Hamano" <gitster@pobox.com>,
	"Derrick Stolee" <stolee@gmail.com>,
	"SZEDER Gábor" <szeder.dev@gmail.com>
Subject: Re: [PATCH v2 0/8] commit-graph: segfault & other fixes for broken graphs
Date: Fri, 15 Mar 2019 03:47:42 -0400	[thread overview]
Message-ID: <CAPig+cTZAhRekr0Yvmtb-gTEATEX19RO0=Zh-ycCPkyEc0OxxA@mail.gmail.com> (raw)
In-Reply-To: <20190314214740.23360-1-avarab@gmail.com>

On Thu, Mar 14, 2019 at 5:47 PM Ævar Arnfjörð Bjarmason
<avarab@gmail.com> wrote:
> I fixed a test to avoid the pattern a0a630192d
> (t/check-non-portable-shell: detect "FOO=bar shell_func", 2018-07-13)
> tests for. The new pattern is more obvious.
>
> As an aside I don't get how that doesn't work as intended from the
> commit message of that commit & its series.
>
>     $ cat /tmp/x.sh
>     sayit() { echo "saying '$SAY'"; };
>     SAY=hi sayit; sayit;
>     $ sh /tmp/x.sh
>     saying 'hi'
>     saying ''
>
> I get the same thing on bash, dash, NetBSD ksh, Solaris's shell &
> AIX's. I.e. it's explicitly not assigning $SAY for the duration of the
> shell [...]

The shells you tested may all behave "sanely" given that input, but
not all shells do. For instance, on MacOS, the factory-supplied bash
3.2.57 behaves in the "broken" way in 'sh' compatibility mode:

$ cat /tmp/x.sh
sayit() { echo "saying '$SAY'"; };
SAY=hi sayit; sayit;

$ /bin/sh /tmp/x.sh
saying 'hi'
saying 'hi'

$ /bin/bash /tmp/x.sh
saying 'hi'
saying ''

  reply	other threads:[~2019-03-15  7:47 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-21 22:37 [PATCH 0/8] commit-graph: segfault & other fixes for broken graphs Ævar Arnfjörð Bjarmason
2019-02-21 22:37 ` [PATCH 1/8] commit-graph tests: split up corrupt_graph_and_verify() Ævar Arnfjörð Bjarmason
2019-02-21 22:37 ` [PATCH 2/8] commit-graph tests: test a graph that's too small Ævar Arnfjörð Bjarmason
2019-02-21 22:37 ` [PATCH 3/8] commit-graph: fix segfault on e.g. "git status" Ævar Arnfjörð Bjarmason
2019-02-21 22:37 ` [PATCH 4/8] commit-graph: don't early exit(1) " Ævar Arnfjörð Bjarmason
2019-02-21 22:37 ` [PATCH 5/8] commit-graph: don't pass filename to load_commit_graph_one_fd_st() Ævar Arnfjörð Bjarmason
2019-02-21 22:37 ` [PATCH 6/8] commit-graph verify: detect inability to read the graph Ævar Arnfjörð Bjarmason
2019-02-21 23:15   ` SZEDER Gábor
2019-02-21 22:37 ` [PATCH 7/8] commit-graph write: don't die if the existing graph is corrupt Ævar Arnfjörð Bjarmason
2019-02-22 23:13   ` Junio C Hamano
2019-02-23  9:29     ` Eric Sunshine
2019-02-21 22:37 ` [PATCH 8/8] commit-graph: improve & i18n error messages Ævar Arnfjörð Bjarmason
2019-03-14 21:47 ` [PATCH v2 0/8] commit-graph: segfault & other fixes for broken graphs Ævar Arnfjörð Bjarmason
2019-03-15  7:47   ` Eric Sunshine [this message]
2019-03-15 10:39     ` Ævar Arnfjörð Bjarmason
2019-03-25 12:08   ` [PATCH v3 " Ævar Arnfjörð Bjarmason
2019-03-25 12:08   ` [PATCH v3 1/8] commit-graph tests: split up corrupt_graph_and_verify() Ævar Arnfjörð Bjarmason
2019-03-25 12:08   ` [PATCH v3 2/8] commit-graph tests: test a graph that's too small Ævar Arnfjörð Bjarmason
2019-03-25 12:08   ` [PATCH v3 3/8] commit-graph: fix segfault on e.g. "git status" Ævar Arnfjörð Bjarmason
2019-03-25 12:08   ` [PATCH v3 4/8] commit-graph: don't early exit(1) " Ævar Arnfjörð Bjarmason
2019-04-27 13:06     ` Ævar Arnfjörð Bjarmason
2019-04-29 12:48       ` Derrick Stolee
2019-04-29 14:30         ` Ævar Arnfjörð Bjarmason
2019-05-01 18:31         ` Jeff King
2019-03-25 12:08   ` [PATCH v3 5/8] commit-graph: don't pass filename to load_commit_graph_one_fd_st() Ævar Arnfjörð Bjarmason
2019-03-25 12:08   ` [PATCH v3 6/8] commit-graph verify: detect inability to read the graph Ævar Arnfjörð Bjarmason
2019-03-25 12:08   ` [PATCH v3 7/8] commit-graph write: don't die if the existing graph is corrupt Ævar Arnfjörð Bjarmason
2019-03-25 12:08   ` [PATCH v3 8/8] commit-graph: improve & i18n error messages Ævar Arnfjörð Bjarmason
2019-03-14 21:47 ` [PATCH v2 1/8] commit-graph tests: split up corrupt_graph_and_verify() Ævar Arnfjörð Bjarmason
2019-03-14 21:47 ` [PATCH v2 2/8] commit-graph tests: test a graph that's too small Ævar Arnfjörð Bjarmason
2019-03-14 21:47 ` [PATCH v2 3/8] commit-graph: fix segfault on e.g. "git status" Ævar Arnfjörð Bjarmason
2019-03-14 21:47 ` [PATCH v2 4/8] commit-graph: don't early exit(1) " Ævar Arnfjörð Bjarmason
2019-03-14 21:47 ` [PATCH v2 5/8] commit-graph: don't pass filename to load_commit_graph_one_fd_st() Ævar Arnfjörð Bjarmason
2019-03-14 21:47 ` [PATCH v2 6/8] commit-graph verify: detect inability to read the graph Ævar Arnfjörð Bjarmason
2019-03-14 21:47 ` [PATCH v2 7/8] commit-graph write: don't die if the existing graph is corrupt Ævar Arnfjörð Bjarmason
2019-03-14 21:47 ` [PATCH v2 8/8] commit-graph: improve & i18n error messages Ævar Arnfjörð Bjarmason

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