From: Junio C Hamano <gitster@pobox.com>
To: Jeff King <peff@peff.net>
Cc: "SZEDER Gábor" <szeder.dev@gmail.com>,
git@vger.kernel.org, "Ævar Arnfjörð Bjarmason" <avarab@gmail.com>
Subject: Re: [PATCH] rev-list: make empty --stdin not an error
Date: Wed, 22 Aug 2018 13:42:26 -0700 [thread overview]
Message-ID: <xmqqa7pem8ul.fsf@gitster-ct.c.googlers.com> (raw)
In-Reply-To: <20180822195045.GC19730@sigill.intra.peff.net> (Jeff King's message of "Wed, 22 Aug 2018 15:50:46 -0400")
Jeff King <peff@peff.net> writes:
> Instead, let's keep two flags: one to denote when we got
> actual input (which triggers both roles) and one for when we
> read stdin (which triggers only the first).
>
> This does mean a caller interested in the first role has to
> check both flags, but there's only one such caller. And any
> future callers might want to make the distinction anyway
> (e.g., if they care less about erroring out, and more about
> whether revision.c soaked up our stdin).
>
> [1] https://public-inbox.org/git/20170802223416.gwiezhbuxbdmbjzx@sigill.intra.peff.net/
>
> Helped-by: Junio C Hamano <gitster@pobox.com>
> Signed-off-by: Jeff King <peff@peff.net>
> ---
> builtin/rev-list.c | 2 +-
> revision.c | 1 +
> revision.h | 5 +++++
> t/t6018-rev-list-glob.sh | 2 +-
> 4 files changed, 8 insertions(+), 2 deletions(-)
I think this makes sense, but if we were to give a dedicated field
in the revs structure, can we lose the local variable at the same
time, I wonder?
Thanks.
> diff --git a/revision.c b/revision.c
> index de4dce600d..4d53102cf4 100644
> --- a/revision.c
> +++ b/revision.c
> @@ -2369,6 +2369,7 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, struct s
> }
> if (read_from_stdin++)
> die("--stdin given twice?");
> + revs->read_from_stdin = 1;
> read_revisions_from_stdin(revs, &prune_data);
> continue;
> }
> diff --git a/revision.h b/revision.h
> index 007278cc11..1225957927 100644
> --- a/revision.h
> +++ b/revision.h
> @@ -82,6 +82,11 @@ struct rev_info {
> */
> int rev_input_given;
>
> + /*
> + * Whether we read from stdin due to the --stdin option.
> + */
> + int read_from_stdin;
> +
> /* topo-sort */
> enum rev_sort_order sort_order;
>
> diff --git a/t/t6018-rev-list-glob.sh b/t/t6018-rev-list-glob.sh
> index 0bf10d0686..db8a7834d8 100755
> --- a/t/t6018-rev-list-glob.sh
> +++ b/t/t6018-rev-list-glob.sh
> @@ -255,7 +255,7 @@ test_expect_success 'rev-list accumulates multiple --exclude' '
> compare rev-list "--exclude=refs/remotes/* --exclude=refs/tags/* --all" --branches
> '
>
> -test_expect_failure 'rev-list should succeed with empty output on empty stdin' '
> +test_expect_success 'rev-list should succeed with empty output on empty stdin' '
> git rev-list --stdin </dev/null >actual &&
> test_must_be_empty actual
> '
next prev parent reply other threads:[~2018-08-22 20:42 UTC|newest]
Thread overview: 95+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-02 10:54 [PATCH] checkout & worktree: introduce a core.DWIMRemote setting Ævar Arnfjörð Bjarmason
2018-05-02 15:21 ` Duy Nguyen
2018-05-02 18:00 ` Eric Sunshine
2018-05-02 18:09 ` Duy Nguyen
2018-05-02 18:25 ` Ævar Arnfjörð Bjarmason
2018-05-03 13:18 ` [PATCH v2] checkout & worktree: introduce checkout.implicitRemote Ævar Arnfjörð Bjarmason
2018-05-03 15:14 ` Duy Nguyen
2018-05-04 7:54 ` Ævar Arnfjörð Bjarmason
2018-05-04 14:58 ` Duy Nguyen
2018-05-04 18:02 ` Ævar Arnfjörð Bjarmason
2018-05-04 9:58 ` Eric Sunshine
2018-05-24 19:47 ` [PATCH v3] " Ævar Arnfjörð Bjarmason
2018-05-25 8:12 ` Junio C Hamano
2018-05-25 14:42 ` Duy Nguyen
2018-05-25 18:38 ` Ævar Arnfjörð Bjarmason
2018-05-26 12:49 ` Duy Nguyen
2018-05-31 7:45 ` Ævar Arnfjörð Bjarmason
2018-05-31 19:52 ` [PATCH v4 0/9] ambiguous checkout UI & checkout.defaultRemote Ævar Arnfjörð Bjarmason
2018-06-01 21:10 ` [PATCH v5 0/8] " Ævar Arnfjörð Bjarmason
2018-06-02 11:50 ` [PATCH v6 " Ævar Arnfjörð Bjarmason
2018-06-05 14:40 ` [PATCH v7 " Ævar Arnfjörð Bjarmason
2018-06-05 14:40 ` [PATCH v7 1/8] checkout tests: index should be clean after dwim checkout Ævar Arnfjörð Bjarmason
2018-06-05 15:45 ` SZEDER Gábor
2018-07-27 17:48 ` [PATCH] tests: make use of the test_must_be_empty function Ævar Arnfjörð Bjarmason
2018-07-27 21:50 ` Junio C Hamano
2018-07-31 0:17 ` SZEDER Gábor
2018-08-22 17:48 ` [PATCH] t6018-rev-list-glob: fix 'empty stdin' test SZEDER Gábor
2018-08-22 17:53 ` Eric Sunshine
2018-08-22 18:59 ` SZEDER Gábor
2018-08-22 20:30 ` Eric Sunshine
2018-08-22 18:01 ` Junio C Hamano
2018-08-22 18:50 ` Junio C Hamano
2018-08-22 19:23 ` Jeff King
2018-08-22 19:50 ` [PATCH] rev-list: make empty --stdin not an error Jeff King
2018-08-22 20:42 ` Junio C Hamano [this message]
2018-08-22 21:37 ` Jeff King
2018-08-22 21:50 ` Junio C Hamano
2018-08-22 21:55 ` Jeff King
2018-08-22 21:41 ` Junio C Hamano
2018-06-05 14:40 ` [PATCH v7 2/8] checkout.h: wrap the arguments to unique_tracking_name() Ævar Arnfjörð Bjarmason
2018-06-05 14:40 ` [PATCH v7 3/8] checkout.c: introduce an *_INIT macro Ævar Arnfjörð Bjarmason
2018-06-05 14:40 ` [PATCH v7 4/8] checkout.c: change "unique" member to "num_matches" Ævar Arnfjörð Bjarmason
2018-06-05 14:40 ` [PATCH v7 5/8] checkout: pass the "num_matches" up to callers Ævar Arnfjörð Bjarmason
2018-06-05 14:40 ` [PATCH v7 6/8] builtin/checkout.c: use "ret" variable for return Ævar Arnfjörð Bjarmason
2018-06-05 14:40 ` [PATCH v7 7/8] checkout: add advice for ambiguous "checkout <branch>" Ævar Arnfjörð Bjarmason
2018-06-05 14:40 ` [PATCH v7 8/8] checkout & worktree: introduce checkout.defaultRemote Ævar Arnfjörð Bjarmason
2018-06-02 11:50 ` [PATCH v6 1/8] checkout tests: index should be clean after dwim checkout Ævar Arnfjörð Bjarmason
2018-06-02 11:50 ` [PATCH v6 2/8] checkout.h: wrap the arguments to unique_tracking_name() Ævar Arnfjörð Bjarmason
2018-06-02 11:50 ` [PATCH v6 3/8] checkout.c: introduce an *_INIT macro Ævar Arnfjörð Bjarmason
2018-06-02 11:50 ` [PATCH v6 4/8] checkout.c]: change "unique" member to "num_matches" Ævar Arnfjörð Bjarmason
2018-06-02 11:50 ` [PATCH v6 5/8] checkout: pass the "num_matches" up to callers Ævar Arnfjörð Bjarmason
2018-06-02 11:50 ` [PATCH v6 6/8] builtin/checkout.c: use "ret" variable for return Ævar Arnfjörð Bjarmason
2018-06-02 11:50 ` [PATCH v6 7/8] checkout: add advice for ambiguous "checkout <branch>" Ævar Arnfjörð Bjarmason
2018-06-02 11:50 ` [PATCH v6 8/8] checkout & worktree: introduce checkout.defaultRemote Ævar Arnfjörð Bjarmason
2018-06-03 7:58 ` Eric Sunshine
2018-06-01 21:10 ` [PATCH v5 1/8] checkout tests: index should be clean after dwim checkout Ævar Arnfjörð Bjarmason
2018-06-01 21:10 ` [PATCH v5 2/8] checkout.h: wrap the arguments to unique_tracking_name() Ævar Arnfjörð Bjarmason
2018-06-01 21:10 ` [PATCH v5 3/8] checkout.[ch]: introduce an *_INIT macro Ævar Arnfjörð Bjarmason
2018-06-01 22:40 ` Eric Sunshine
2018-06-01 21:10 ` [PATCH v5 4/8] checkout.[ch]: change "unique" member to "num_matches" Ævar Arnfjörð Bjarmason
2018-06-01 22:41 ` Eric Sunshine
2018-06-01 21:10 ` [PATCH v5 5/8] checkout: pass the "num_matches" up to callers Ævar Arnfjörð Bjarmason
2018-06-01 21:10 ` [PATCH v5 6/8] builtin/checkout.c: use "ret" variable for return Ævar Arnfjörð Bjarmason
2018-06-01 21:10 ` [PATCH v5 7/8] checkout: add advice for ambiguous "checkout <branch>" Ævar Arnfjörð Bjarmason
2018-06-01 22:52 ` Eric Sunshine
2018-06-01 21:10 ` [PATCH v5 8/8] checkout & worktree: introduce checkout.defaultRemote Ævar Arnfjörð Bjarmason
2018-05-31 19:52 ` [PATCH v4 1/9] checkout tests: index should be clean after dwim checkout Ævar Arnfjörð Bjarmason
2018-06-01 4:06 ` Junio C Hamano
2018-06-01 19:43 ` Ævar Arnfjörð Bjarmason
2018-05-31 19:52 ` [PATCH v4 2/9] checkout.h: wrap the arguments to unique_tracking_name() Ævar Arnfjörð Bjarmason
2018-05-31 19:52 ` [PATCH v4 3/9] checkout.[ch]: move struct declaration into *.h Ævar Arnfjörð Bjarmason
2018-05-31 21:45 ` Thomas Gummerer
2018-06-01 2:14 ` Junio C Hamano
2018-06-01 9:56 ` Ævar Arnfjörð Bjarmason
2018-05-31 19:52 ` [PATCH v4 4/9] checkout.[ch]: introduce an *_INIT macro Ævar Arnfjörð Bjarmason
2018-06-01 4:16 ` Junio C Hamano
2018-05-31 19:52 ` [PATCH v4 5/9] checkout.[ch]: change "unique" member to "num_matches" Ævar Arnfjörð Bjarmason
2018-05-31 19:52 ` [PATCH v4 6/9] checkout: pass the "num_matches" up to callers Ævar Arnfjörð Bjarmason
2018-05-31 19:52 ` [PATCH v4 7/9] builtin/checkout.c: use "ret" variable for return Ævar Arnfjörð Bjarmason
2018-05-31 19:52 ` [PATCH v4 8/9] checkout: add advice for ambiguous "checkout <branch>" Ævar Arnfjörð Bjarmason
2018-06-01 4:32 ` Junio C Hamano
2018-06-01 5:11 ` Junio C Hamano
2018-06-01 9:54 ` Ævar Arnfjörð Bjarmason
2018-06-04 1:58 ` Junio C Hamano
2018-06-01 9:50 ` Ævar Arnfjörð Bjarmason
2018-06-01 7:53 ` Eric Sunshine
2018-06-01 19:59 ` Ævar Arnfjörð Bjarmason
2018-05-31 19:52 ` [PATCH v4 9/9] checkout & worktree: introduce checkout.defaultRemote Ævar Arnfjörð Bjarmason
2018-05-31 21:49 ` Stefan Beller
2018-06-01 8:04 ` Eric Sunshine
2018-06-01 9:47 ` Ævar Arnfjörð Bjarmason
2018-05-31 22:22 ` Thomas Gummerer
2018-06-01 2:17 ` Junio C Hamano
2018-05-04 7:14 ` [PATCH] checkout & worktree: introduce a core.DWIMRemote setting Eric Sunshine
2018-05-04 7:23 ` Eric Sunshine
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