Re: [PATCH 2/2] [GSOC] cherry-pick: use better advice message

[Phillip Wood <phillip.wood123@gmail.com>]

On 31/07/2021 08:01, ZheNing Hu via GitGitGadget wrote:
> From: ZheNing Hu <adlternative@gmail.com>
> 
> In the past, git cherry-pick would print such advice when
> there was a conflict:
> 
> hint: after resolving the conflicts, mark the corrected paths
> hint: with 'git add <paths>' or 'git rm <paths>'
> hint: and commit the result with 'git commit'
> 
> But in fact, when we want to cherry-pick multiple commits,
> we should not use "git commit" after resolving conflicts, which
> will make Git generate some errors. We should recommend users to
> use `git cherry-pick --continue`, `git cherry-pick --abort`, just
> like git rebase does.
> 
> This is the improved advice:
> 
> hint: Resolve all conflicts manually, mark them as resolved with
> hint: "git add/rm <conflicted_files>", then run "git cherry-pick \
> --continue".
> hint: You can instead skip this commit: run "git cherry-pick --skip".
> hint: To abort and get back to the state before "git cherry-pick",
> hint: run "git cherry-pick --abort".

This new wording matches what we have for rebase which is good, I am 
slightly worried that the lines end up being quite long though they are 
just under 80 characters. It might be worth splitting the line that 
mentions running "git cherry-pick --continue" so it is a bit shorter.

Best Wishes

Phillip

> Mentored-by: Christian Couder <christian.couder@gmail.com>
> Mentored-by Hariom Verma <hariom18599@gmail.com>:
> Helped-by: Phillip Wood <phillip.wood@dunelm.org.uk>
> Hepled-by: Junio C Hamano <gitster@pobox.com>
> Signed-off-by: ZheNing Hu <adlternative@gmail.com>
> ---
>   sequencer.c                     |  9 ++++++++-
>   t/t3507-cherry-pick-conflict.sh | 15 ++++++++++-----
>   2 files changed, 18 insertions(+), 6 deletions(-)
> 
> diff --git a/sequencer.c b/sequencer.c
> index 83cf6a5da3c..f6e9d1fddd8 100644
> --- a/sequencer.c
> +++ b/sequencer.c
> @@ -404,7 +404,14 @@ static void print_advice(struct replay_opts *opts, int show_hint)
>   	if (msg) {
>   		advise("%s\n", msg);
>   	} else if (show_hint) {
> -		if (opts->no_commit)
> +		if (opts->action == REPLAY_PICK) {
> +			advise(_("Resolve all conflicts manually, mark them as resolved with\n"
> +				 "\"git add/rm <conflicted_files>\", then run \"git cherry-pick --continue\".\n"
> +				 "You can instead skip this commit: run \"git cherry-pick --skip\".\n"
> +				 "To abort and get back to the state before \"git cherry-pick\",\n"
> +				 "run \"git cherry-pick --abort\"."));
> +
> +		} else if (opts->no_commit)
>   			advise(_("after resolving the conflicts, mark the corrected paths\n"
>   				 "with 'git add <paths>' or 'git rm <paths>'"));
>   		else
> diff --git a/t/t3507-cherry-pick-conflict.sh b/t/t3507-cherry-pick-conflict.sh
> index f17621d1915..2cc3977f5a6 100755
> --- a/t/t3507-cherry-pick-conflict.sh
> +++ b/t/t3507-cherry-pick-conflict.sh
> @@ -53,9 +53,11 @@ test_expect_success 'advice from failed cherry-pick' "
>   	picked=\$(git rev-parse --short picked) &&
>   	cat <<-EOF >expected &&
>   	error: could not apply \$picked... picked
> -	hint: after resolving the conflicts, mark the corrected paths
> -	hint: with 'git add <paths>' or 'git rm <paths>'
> -	hint: and commit the result with 'git commit'
> +	hint: Resolve all conflicts manually, mark them as resolved with
> +	hint: \"git add/rm <conflicted_files>\", then run \"git cherry-pick --continue\".
> +	hint: You can instead skip this commit: run \"git cherry-pick --skip\".
> +	hint: To abort and get back to the state before \"git cherry-pick\",
> +	hint: run \"git cherry-pick --abort\".
>   	EOF
>   	test_must_fail git cherry-pick picked 2>actual &&
>   
> @@ -68,8 +70,11 @@ test_expect_success 'advice from failed cherry-pick --no-commit' "
>   	picked=\$(git rev-parse --short picked) &&
>   	cat <<-EOF >expected &&
>   	error: could not apply \$picked... picked
> -	hint: after resolving the conflicts, mark the corrected paths
> -	hint: with 'git add <paths>' or 'git rm <paths>'
> +	hint: Resolve all conflicts manually, mark them as resolved with
> +	hint: \"git add/rm <conflicted_files>\", then run \"git cherry-pick --continue\".
> +	hint: You can instead skip this commit: run \"git cherry-pick --skip\".
> +	hint: To abort and get back to the state before \"git cherry-pick\",
> +	hint: run \"git cherry-pick --abort\".
>   	EOF
>   	test_must_fail git cherry-pick --no-commit picked 2>actual &&
>   
>