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Re: [PATCH] sequencer: remove unreachable exit condition in pick_commits()

From
PWPhillip Wood <phillip.wood123@gmail.com>
Date
Sep 12, 2023, 10:18 UTC
Message-ID
<ddf8dc95-6583-4257-b48a-0115f59950ef@gmail.com>
In-Reply-To
<20230903151132.739151-1-oswald.buddenhagen@gmx.de>
Hi Oswald
On 03/09/2023 16:11, Oswald Buddenhagen wrote:
> This was introduced by 56dc3ab04 ("sequencer (rebase -i): implement the
> 'edit' command", 2017-01-02), and was pointless from the get-go, as the
> command causes an early return.

While I agree this code is unreachable, just because it was unused when it was added does not mean it is unused now. It would be helpful for the commit message to explain that there are no "break" or "goto" statements in the loop body and therefore this code is only reachable when the loop terminates because todo_list->current == todo_list->nr

Best Wishes
Phillip
Show 28 quoted lines
> Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
> 
> ---
> this remains valid after phillip's pending series, through it becomes
> marginally harder to prove (c.f. "sequencer: factor out part of
> pick_commits()").
> 
> Cc: Johannes Schindelin <johannes.schindelin@gmx.de>
> Cc: Phillip Wood <phillip.wood123@gmail.com>
> ---
>   sequencer.c | 4 ----
>   1 file changed, 4 deletions(-)
> 
> diff --git a/sequencer.c b/sequencer.c
> index a66dcf8ab2..99e9c520ca 100644
> --- a/sequencer.c
> +++ b/sequencer.c
> @@ -4832,10 +4832,6 @@ static int pick_commits(struct repository *r,
>   		struct strbuf head_ref = STRBUF_INIT, buf = STRBUF_INIT;
>   		struct stat st;
>   
> -		/* Stopped in the middle, as planned? */
> -		if (todo_list->current < todo_list->nr)
> -			return 0;
> -
>   		if (read_oneliner(&head_ref, rebase_path_head_name(), 0) &&
>   				starts_with(head_ref.buf, "refs/")) {
>   			const char *msg;
Previous: Oswald BuddenhagenNext: Oswald Buddenhagen
Message 2 of 5 in “sequencer: remove unreachable exit condition in pick_commits()”
  1. sequencer: remove unreachable exit condition in pick_commits()Oswald Buddenhagen, Sep 3, 2023
  2. Phillip WoodSep 12, 2023
  3. sequencer: remove unreachable exit condition in pick_commits()Oswald Buddenhagen, Sep 12, 2023
  4. Phillip WoodSep 12, 2023
  5. Junio C HamanoSep 13, 2023

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