From: Phillip Wood <phillip.wood123@gmail.com>
To: Rohit Ashiwal <rohit.ashiwal265@gmail.com>
Cc: git@vger.kernel.org, newren@gmail.com, t.gummerer@gmail.com,
martin.agren@gmail.com, jrnieder@gmail.com, gitster@pobox.com
Subject: Re: [GSoC][PATCH v5 4/5] cherry-pick/revert: add --skip option
Date: Thu, 20 Jun 2019 11:02:22 +0100 [thread overview]
Message-ID: <0047b8c6-8a58-7546-2ae8-19c4ab668fa3@gmail.com> (raw)
In-Reply-To: <20190618170650.22721-5-rohit.ashiwal265@gmail.com>
Hi Rohit
On 18/06/2019 18:06, Rohit Ashiwal wrote:
> git am or rebase have a --skip flag to skip the current commit if the
> user wishes to do so. During a cherry-pick or revert a user could
> likewise skip a commit, but needs to use 'git reset' (or in the case
> of conflicts 'git reset --merge'), followed by 'git (cherry-pick |
> revert) --continue' to skip the commit. This is more annoying and
> sometimes confusing on the users' part. Add a `--skip` option to make
> skipping commits easier for the user and to make the commands more
> consistent.
>
> In the next commit, we will change the advice messages hence finishing
> the process of teaching revert and cherry-pick "how to skip commits".
>
> Signed-off-by: Rohit Ashiwal <rohit.ashiwal265@gmail.com>
> ---
> Documentation/git-cherry-pick.txt | 4 +-
> Documentation/git-revert.txt | 4 +-
> Documentation/sequencer.txt | 4 ++
> builtin/revert.c | 5 ++
> sequencer.c | 69 ++++++++++++++++++++
> sequencer.h | 1 +
> t/t3510-cherry-pick-sequence.sh | 102 ++++++++++++++++++++++++++++++
> 7 files changed, 183 insertions(+), 6 deletions(-)
>
> diff --git a/Documentation/git-cherry-pick.txt b/Documentation/git-cherry-pick.txt
> index 754b16ce0c..83ce51aedf 100644
> --- a/Documentation/git-cherry-pick.txt
> +++ b/Documentation/git-cherry-pick.txt
> @@ -10,9 +10,7 @@ SYNOPSIS
> [verse]
> 'git cherry-pick' [--edit] [-n] [-m parent-number] [-s] [-x] [--ff]
> [-S[<keyid>]] <commit>...
> -'git cherry-pick' --continue
> -'git cherry-pick' --quit
> -'git cherry-pick' --abort
> +'git cherry-pick' (--continue | --skip | --abort | --quit)
>
> DESCRIPTION
> -----------
> diff --git a/Documentation/git-revert.txt b/Documentation/git-revert.txt
> index 0c82ca5bc0..665e065ee3 100644
> --- a/Documentation/git-revert.txt
> +++ b/Documentation/git-revert.txt
> @@ -9,9 +9,7 @@ SYNOPSIS
> --------
> [verse]
> 'git revert' [--[no-]edit] [-n] [-m parent-number] [-s] [-S[<keyid>]] <commit>...
> -'git revert' --continue
> -'git revert' --quit
> -'git revert' --abort
> +'git revert' (--continue | --skip | --abort | --quit)
>
> DESCRIPTION
> -----------
> diff --git a/Documentation/sequencer.txt b/Documentation/sequencer.txt
> index 5a57c4a407..3bceb56474 100644
> --- a/Documentation/sequencer.txt
> +++ b/Documentation/sequencer.txt
> @@ -3,6 +3,10 @@
> `.git/sequencer`. Can be used to continue after resolving
> conflicts in a failed cherry-pick or revert.
>
> +--skip::
> + Skip the current commit and continue with the rest of the
> + sequence.
> +
> --quit::
> Forget about the current operation in progress. Can be used
> to clear the sequencer state after a failed cherry-pick or
> diff --git a/builtin/revert.c b/builtin/revert.c
> index d4dcedbdc6..5dc5891ea2 100644
> --- a/builtin/revert.c
> +++ b/builtin/revert.c
> @@ -102,6 +102,7 @@ static int run_sequencer(int argc, const char **argv, struct replay_opts *opts)
> OPT_CMDMODE(0, "quit", &cmd, N_("end revert or cherry-pick sequence"), 'q'),
> OPT_CMDMODE(0, "continue", &cmd, N_("resume revert or cherry-pick sequence"), 'c'),
> OPT_CMDMODE(0, "abort", &cmd, N_("cancel revert or cherry-pick sequence"), 'a'),
> + OPT_CMDMODE(0, "skip", &cmd, N_("skip current commit and continue"), 's'),
> OPT_CLEANUP(&cleanup_arg),
> OPT_BOOL('n', "no-commit", &opts->no_commit, N_("don't automatically commit")),
> OPT_BOOL('e', "edit", &opts->edit, N_("edit the commit message")),
> @@ -151,6 +152,8 @@ static int run_sequencer(int argc, const char **argv, struct replay_opts *opts)
> this_operation = "--quit";
> else if (cmd == 'c')
> this_operation = "--continue";
> + else if (cmd == 's')
> + this_operation = "--skip";
> else {
> assert(cmd == 'a');
> this_operation = "--abort";
> @@ -210,6 +213,8 @@ static int run_sequencer(int argc, const char **argv, struct replay_opts *opts)
> return sequencer_continue(the_repository, opts);
> if (cmd == 'a')
> return sequencer_rollback(the_repository, opts);
> + if (cmd == 's')
> + return sequencer_skip(the_repository, opts);
> return sequencer_pick_revisions(the_repository, opts);
> }
>
> diff --git a/sequencer.c b/sequencer.c
> index 6762a5f485..5720cd1c85 100644
> --- a/sequencer.c
> +++ b/sequencer.c
> @@ -2761,6 +2761,15 @@ static int rollback_single_pick(struct repository *r)
> return reset_merge(&head_oid);
> }
>
> +static int skip_single_pick(void)
> +{
> + struct object_id head;
> +
> + if (read_ref_full("HEAD", 0, &head, NULL))
> + return error(_("cannot resolve HEAD"));
> + return reset_merge(&head);
> +}
> +
> int sequencer_rollback(struct repository *r, struct replay_opts *opts)
> {
> FILE *f;
> @@ -2810,6 +2819,66 @@ int sequencer_rollback(struct repository *r, struct replay_opts *opts)
> return -1;
> }
>
> +int sequencer_skip(struct repository *r, struct replay_opts *opts)
> +{
> + enum replay_action action = -1;
> + sequencer_get_last_command(r, &action);
> +
> + /*
> + * Check whether the subcommand requested to skip the commit is actually
> + * in progress and that it's safe to skip the commit.
> + *
> + * opts->action tells us which subcommand requested to skip the commit.
> + * If the corresponding .git/<ACTION>_HEAD exists, we know that the
> + * action is in progress and we can skip the commit.
> + *
> + * Otherwise we check that the last instruction was related to the
> + * particular subcommand we're trying to execute and barf if that's not
> + * the case.
> + *
> + * Finally we check that the rollback is "safe", i.e., has the HEAD
> + * moved? In this case, it doesn't make sense to "reset the merge" and
> + * "skip the commit" as the user already handled this by committing. But
> + * we'd not want to barf here, instead give advice on how to proceed. We
> + * only need to check that when .git/<ACTION>_HEAD doesn't exist because
> + * it gets removed when the user commits, so if it still exists we're
> + * sure the user can't have committed before.
> + */
Thanks for updating the comment, I think it is easier to follow now
(Thanks to Thomas for suggesting it as well)
> + switch (opts->action) {
> + case REPLAY_REVERT:
> + if (!file_exists(git_path_revert_head(r))) {
> + if (action != REPLAY_REVERT)
> + return error(_("no revert in progress"));
> + if (!rollback_is_safe())
> + goto give_advice;
> + }
> + break;
> + case REPLAY_PICK:
> + if (!file_exists(git_path_cherry_pick_head(r))) {
> + if (action != REPLAY_PICK)
> + return error(_("no cherry-pick in progress"));
> + if (!rollback_is_safe())
> + goto give_advice;
> + }
> + break;
> + default:
> + BUG("unexpected action in sequencer_skip");
> + }
> +
> + if (skip_single_pick())
> + return error(_("failed to skip the commit"));
> + if (!is_directory(git_path_seq_dir()))
> + return 0;
> +
> + return sequencer_continue(r, opts);
> +
> +give_advice:
> + advise(_("have you committed already?\n"
> + "try \"git %s --continue\""),
> + action == REPLAY_REVERT ? "revert" : "cherry-pick");
> + return error(_("there is nothing to skip"));
> +}
> +
> static int save_todo(struct todo_list *todo_list, struct replay_opts *opts)
> {
> struct lock_file todo_lock = LOCK_INIT;
> diff --git a/sequencer.h b/sequencer.h
> index 0c494b83d4..731b9853eb 100644
> --- a/sequencer.h
> +++ b/sequencer.h
> @@ -129,6 +129,7 @@ int sequencer_pick_revisions(struct repository *repo,
> struct replay_opts *opts);
> int sequencer_continue(struct repository *repo, struct replay_opts *opts);
> int sequencer_rollback(struct repository *repo, struct replay_opts *opts);
> +int sequencer_skip(struct repository *repo, struct replay_opts *opts);
> int sequencer_remove_state(struct replay_opts *opts);
>
> #define TODO_LIST_KEEP_EMPTY (1U << 0)
> diff --git a/t/t3510-cherry-pick-sequence.sh b/t/t3510-cherry-pick-sequence.sh
> index 941d5026da..dc0ac8343c 100755
> --- a/t/t3510-cherry-pick-sequence.sh
> +++ b/t/t3510-cherry-pick-sequence.sh
> @@ -93,6 +93,108 @@ test_expect_success 'cherry-pick cleans up sequencer state upon success' '
> test_path_is_missing .git/sequencer
> '
>
> +test_expect_success 'cherry-pick --skip requires cherry-pick in progress' '
> + pristine_detach initial &&
> + test_must_fail git cherry-pick --skip
> +'
> +
> +test_expect_success 'revert --skip requires revert in progress' '
> + pristine_detach initial &&
> + test_must_fail git revert --skip
> +'
> +
> +test_expect_success 'cherry-pick --skip to skip commit' '
> + pristine_detach initial &&
> + test_must_fail git cherry-pick anotherpick &&
> + test_must_fail git revert --skip &&
> + git cherry-pick --skip &&
> + test_cmp_rev initial HEAD &&
> + test_path_is_missing .git/CHERRY_PICK_HEAD
> +'
> +
> +test_expect_success 'revert --skip to skip commit' '
> + pristine_detach anotherpick &&
> + test_must_fail git revert anotherpick~1 &&
> + test_must_fail git cherry-pick --skip &&
> + git revert --skip &&
> + test_cmp_rev anotherpick HEAD
> +'
> +
> +test_expect_success 'skip "empty" commit' '
> + pristine_detach picked &&
> + test_commit dummy foo d &&
> + test_must_fail git cherry-pick anotherpick &&
> + git cherry-pick --skip &&
> + test_cmp_rev dummy HEAD
> +'
> +
> +test_expect_success 'skip a commit and check if rest of sequence is correct' '
> + pristine_detach initial &&
> + echo e >expect &&
> + cat >expect.log <<-EOF &&
> + OBJID
> + :100644 100644 OBJID OBJID M foo
> + OBJID
> + :100644 100644 OBJID OBJID M foo
> + OBJID
> + :100644 100644 OBJID OBJID M unrelated
> + OBJID
> + :000000 100644 OBJID OBJID A foo
> + :000000 100644 OBJID OBJID A unrelated
> + EOF
> + test_must_fail git cherry-pick base..yetanotherpick &&
> + test_must_fail git cherry-pick --skip &&
> + echo d >foo &&
> + git add foo &&
> + git cherry-pick --continue &&
> + {
> + git rev-list HEAD |
> + git diff-tree --root --stdin |
> + sed "s/$OID_REGEX/OBJID/g"
> + } >actual.log &&
> + test_cmp expect foo &&
> + test_cmp expect.log actual.log
> +'
> +
> +test_expect_success 'check advice when we move HEAD by committing' '
> + pristine_detach initial &&
> + cat >expect <<-EOF &&
> + hint: have you committed already?
> + hint: try "git cherry-pick --continue"
> + error: there is nothing to skip
> + fatal: cherry-pick failed
> + EOF
> + test_must_fail git cherry-pick base..yetanotherpick &&
> + echo c >foo &&
> + git commit -a &&
> + test_path_is_missing .git/CHERRY_PICK_HEAD &&
> + test_must_fail git cherry-pick --skip 2>advice &&
> + test_i18ncmp expect advice
> +'
> +
> +test_expect_success 'allow skipping commit but not abort for a new history' '
> + pristine_detach initial &&
> + cat >expect <<-EOF &&
> + error: cannot abort from a branch yet to be born
> + fatal: cherry-pick failed
> + EOF
> + git checkout --orphan new_disconnected &&
> + git reset --hard &&
> + test_must_fail git cherry-pick anotherpick &&
> + test_must_fail git cherry-pick --abort 2>advice &&
> + git cherry-pick --skip &&
> + test_i18ncmp expect advice
> +'
> +
> +test_expect_success 'allow skipping stopped cherry-pick because of untracked file modifications' '
> + pristine_detach initial &&
> + git rm --cached unrelated &&
> + git commit -m "untrack unrelated" &&
> + test_must_fail git cherry-pick initial base &&
> + test_path_is_missing .git/CHERRY_PICK_HEAD &&
> + git cherry-pick --skip
If you change this to --continue rather than --skip the test also
passes! I think we could fix this by checking if HEAD has changed if
CHERRY_PICK_HEAD/REVERT_HEAD is missing and not dropping the last
command in the todo list in that case when we continue.
Best Wishes
Phillip
> +'
> +
> test_expect_success '--quit does not complain when no cherry-pick is in progress' '
> pristine_detach initial &&
> git cherry-pick --quit
>
next prev parent reply other threads:[~2019-06-20 10:02 UTC|newest]
Thread overview: 95+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-08 19:19 [GSoC][PATCH 0/3] Teach cherry-pick/revert to skip commits Rohit Ashiwal
2019-06-08 19:19 ` [GSoC][PATCH 1/3] sequencer: add advice for revert Rohit Ashiwal
2019-06-09 17:52 ` Phillip Wood
2019-06-10 5:13 ` Rohit Ashiwal
2019-06-10 10:39 ` Phillip Wood
2019-06-10 13:25 ` Rohit Ashiwal
2019-06-10 17:46 ` Phillip Wood
2019-06-10 16:34 ` Junio C Hamano
2019-06-08 19:19 ` [GSoC][PATCH 2/3] cherry-pick/revert: add --skip option Rohit Ashiwal
2019-06-09 8:37 ` Thomas Gummerer
2019-06-09 18:01 ` Phillip Wood
2019-06-10 5:57 ` Rohit Ashiwal
2019-06-10 10:40 ` Phillip Wood
2019-06-10 13:43 ` Rohit Ashiwal
2019-06-10 17:47 ` Phillip Wood
2019-06-08 19:19 ` [GSoC][PATCH 3/3] cherry-pick/revert: update hints Rohit Ashiwal
2019-06-09 8:42 ` Thomas Gummerer
2019-06-09 18:03 ` Phillip Wood
2019-06-10 5:28 ` Rohit Ashiwal
2019-06-10 10:40 ` Phillip Wood
2019-06-10 13:33 ` Rohit Ashiwal
2019-06-10 17:47 ` Phillip Wood
2019-06-09 9:02 ` [GSoC][PATCH 0/3] Teach cherry-pick/revert to skip commits Thomas Gummerer
2019-06-09 10:06 ` Rohit Ashiwal
2019-06-09 20:00 ` Thomas Gummerer
2019-06-11 7:31 ` [GSoC][PATCH v2 " Rohit Ashiwal
2019-06-11 7:31 ` [GSoC][PATCH v2 1/3] sequencer: add advice for revert Rohit Ashiwal
2019-06-11 21:25 ` Junio C Hamano
2019-06-11 7:31 ` [GSoC][PATCH v2 2/3] cherry-pick/revert: add --skip option Rohit Ashiwal
2019-06-12 13:31 ` Phillip Wood
2019-06-12 18:11 ` Junio C Hamano
2019-06-12 18:57 ` Phillip Wood
2019-06-11 7:31 ` [GSoC][PATCH v2 3/3] cherry-pick/revert: advise using --skip Rohit Ashiwal
2019-06-12 15:16 ` Phillip Wood
2019-06-13 4:05 ` [GSoC][PATCH v3 0/3] Teach cherry-pick/revert to skip commits Rohit Ashiwal
2019-06-13 4:05 ` [GSoC][PATCH v3 1/3] sequencer: add advice for revert Rohit Ashiwal
2019-06-13 17:45 ` Phillip Wood
2019-06-13 19:21 ` Martin Ågren
2019-06-13 20:59 ` Junio C Hamano
2019-06-14 3:44 ` Rohit Ashiwal
2019-06-14 3:43 ` Rohit Ashiwal
2019-06-13 4:05 ` [GSoC][PATCH v3 2/3] cherry-pick/revert: add --skip option Rohit Ashiwal
2019-06-13 17:56 ` Junio C Hamano
2019-06-13 19:57 ` Junio C Hamano
2019-06-14 3:48 ` Rohit Ashiwal
2019-06-14 3:45 ` Rohit Ashiwal
2019-06-14 15:58 ` Junio C Hamano
2019-06-16 7:03 ` Rohit Ashiwal
2019-06-13 17:59 ` Phillip Wood
2019-06-13 4:05 ` [GSoC][PATCH v3 3/3] cherry-pick/revert: advise using --skip Rohit Ashiwal
2019-06-16 8:20 ` [GSoC][PATCH v4 0/4] [GSoC][PATCH 0/3] Teach cherry-pick/revert to skip commits Rohit Ashiwal
2019-06-16 8:20 ` [GSoC][PATCH v4 1/4] sequencer: add advice for revert Rohit Ashiwal
2019-06-17 5:51 ` Thomas Gummerer
2019-06-16 8:20 ` [GSoC][PATCH v4 2/4] sequencer: rename reset_for_rollback to reset_merge Rohit Ashiwal
2019-06-16 8:20 ` [GSoC][PATCH v4 3/4] cherry-pick/revert: add --skip option Rohit Ashiwal
2019-06-17 8:30 ` Thomas Gummerer
2019-06-16 8:20 ` [GSoC][PATCH v4 4/4] cherry-pick/revert: advise using --skip Rohit Ashiwal
2019-06-17 8:39 ` [GSoC][PATCH v4 0/4] [GSoC][PATCH 0/3] Teach cherry-pick/revert to skip commits Thomas Gummerer
2019-06-18 17:06 ` [GSoC][PATCH v5 0/5] " Rohit Ashiwal
2019-06-18 17:06 ` [GSoC][PATCH v5 1/5] sequencer: add advice for revert Rohit Ashiwal
2019-06-18 17:06 ` [GSoC][PATCH v5 2/5] sequencer: rename reset_for_rollback to reset_merge Rohit Ashiwal
2019-06-18 17:06 ` [GSoC][PATCH v5 3/5] sequencer: use argv_array in reset_merge Rohit Ashiwal
2019-06-18 17:06 ` [GSoC][PATCH v5 4/5] cherry-pick/revert: add --skip option Rohit Ashiwal
2019-06-20 3:40 ` Junio C Hamano
2019-06-20 9:46 ` Rohit Ashiwal
2019-06-20 9:57 ` Phillip Wood
2019-06-20 20:09 ` Junio C Hamano
2019-06-20 10:02 ` Phillip Wood [this message]
2019-06-20 10:34 ` Rohit Ashiwal
2019-06-20 11:42 ` Phillip Wood
2019-06-21 7:47 ` Rohit Ashiwal
2019-06-18 17:06 ` [GSoC][PATCH v5 5/5] cherry-pick/revert: advise using --skip Rohit Ashiwal
2019-06-21 9:17 ` [GSoC][PATCH v6 0/5] Teach cherry-pick/revert to skip commits Rohit Ashiwal
2019-06-21 9:17 ` [GSoC][PATCH v6 1/5] sequencer: add advice for revert Rohit Ashiwal
2019-06-21 9:17 ` [GSoC][PATCH v6 2/5] sequencer: rename reset_for_rollback to reset_merge Rohit Ashiwal
2019-06-21 9:17 ` [GSoC][PATCH v6 3/5] sequencer: use argv_array in reset_merge Rohit Ashiwal
2019-06-21 9:17 ` [GSoC][PATCH v6 4/5] cherry-pick/revert: add --skip option Rohit Ashiwal
2019-06-21 9:18 ` [GSoC][PATCH v6 5/5] cherry-pick/revert: advise using --skip Rohit Ashiwal
2019-06-21 19:09 ` [GSoC][PATCH v6 0/5] Teach cherry-pick/revert to skip commits Junio C Hamano
2019-06-23 20:03 ` [GSoC][PATCH v7 0/6] " Rohit Ashiwal
2019-06-23 20:03 ` [GSoC][PATCH v7 1/6] advice: add sequencerInUse config variable Rohit Ashiwal
2019-06-25 9:18 ` Thomas Gummerer
2019-06-23 20:03 ` [GSoC][PATCH v7 2/6] sequencer: add advice for revert Rohit Ashiwal
2019-06-29 14:05 ` Phillip Wood
2019-06-23 20:03 ` [GSoC][PATCH v7 3/6] sequencer: rename reset_for_rollback to reset_merge Rohit Ashiwal
2019-06-23 20:03 ` [GSoC][PATCH v7 4/6] sequencer: use argv_array in reset_merge Rohit Ashiwal
2019-06-23 20:03 ` [GSoC][PATCH v7 5/6] cherry-pick/revert: add --skip option Rohit Ashiwal
2019-06-23 20:03 ` [GSoC][PATCH v7 6/6] cherry-pick/revert: advise using --skip Rohit Ashiwal
2019-07-02 9:11 ` [GSoC][PATCH v8 0/5] Teach cherry-pick/revert to skip commits Rohit Ashiwal
2019-07-02 9:11 ` [GSoC][PATCH v8 1/5] sequencer: add advice for revert Rohit Ashiwal
2019-07-02 9:11 ` [GSoC][PATCH v8 2/5] sequencer: rename reset_for_rollback to reset_merge Rohit Ashiwal
2019-07-02 9:11 ` [GSoC][PATCH v8 3/5] sequencer: use argv_array in reset_merge Rohit Ashiwal
2019-07-02 9:11 ` [GSoC][PATCH v8 4/5] cherry-pick/revert: add --skip option Rohit Ashiwal
2019-07-02 9:11 ` [GSoC][PATCH v8 5/5] cherry-pick/revert: advise using --skip Rohit Ashiwal
2019-07-02 15:26 ` [GSoC][PATCH v8 0/5] Teach cherry-pick/revert to skip commits Phillip Wood
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: http://vger.kernel.org/majordomo-info.html
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=0047b8c6-8a58-7546-2ae8-19c4ab668fa3@gmail.com \
--to=phillip.wood123@gmail.com \
--cc=git@vger.kernel.org \
--cc=gitster@pobox.com \
--cc=jrnieder@gmail.com \
--cc=martin.agren@gmail.com \
--cc=newren@gmail.com \
--cc=phillip.wood@dunelm.org.uk \
--cc=rohit.ashiwal265@gmail.com \
--cc=t.gummerer@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://80x24.org/mirrors/git.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).