commit: give correct advice for empty commit during a rebase
In dcb500dc16c (cherry-pick/revert: advise using --skip, 2019-07-02),
`git commit` learned to suggest to run `git cherry-pick --skip` when
trying to cherry-pick an empty patch.
However, it was overlooked that there are more conditions than just a
`git cherry-pick` when this advice is printed (which originally
suggested the neutral `git reset`): the same can happen during a rebase.
Let's suggest the correct command, even during a rebase.
While at it, we adjust more places in `builtin/commit.c` that
incorrectly assumed that the presence of a `CHERRY_PICK_HEAD` meant that
surely this must be a `cherry-pick` in progress.
Note: we take pains to handle the situation when a user runs a `git
cherry-pick` _during_ a rebase. This is quite valid (e.g. in an `exec`
line in an interactive rebase). On the other hand, it is not possible to
run a rebase during a cherry-pick, meaning: if both `rebase-merge/` and
`sequencer/` exist or CHERRY_PICK_HEAD and REBASE_HEAD point to the same
commit , we still want to advise to use `git cherry-pick --skip`.
Original-patch-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/builtin/commit.c b/builtin/commit.c
index 8a7c839..efc201d 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -59,6 +59,9 @@ N_("The previous cherry-pick is now empty, possibly due to conflict resolution.\
" git commit --allow-empty\n"
"\n");
+static const char empty_rebase_pick_advice[] =
+N_("Otherwise, please use 'git rebase --skip'\n");
+
static const char empty_cherry_pick_advice_single[] =
N_("Otherwise, please use 'git cherry-pick --skip'\n");
@@ -449,6 +452,8 @@ static const char *prepare_index(int argc, const char **argv, const char *prefix
die(_("cannot do a partial commit during a merge."));
else if (is_from_cherry_pick(whence))
die(_("cannot do a partial commit during a cherry-pick."));
+ else if (is_from_rebase(whence))
+ die(_("cannot do a partial commit during a rebase."));
}
if (list_paths(&partial, !current_head ? NULL : "HEAD", &pathspec))
@@ -765,7 +770,7 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
*/
else if (whence == FROM_MERGE)
hook_arg1 = "merge";
- else if (is_from_cherry_pick(whence)) {
+ else if (is_from_cherry_pick(whence) || whence == FROM_REBASE_PICK) {
hook_arg1 = "commit";
hook_arg2 = "CHERRY_PICK_HEAD";
}
@@ -942,12 +947,15 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
run_status(stdout, index_file, prefix, 0, s);
if (amend)
fputs(_(empty_amend_advice), stderr);
- else if (is_from_cherry_pick(whence)) {
+ else if (is_from_cherry_pick(whence) ||
+ whence == FROM_REBASE_PICK) {
fputs(_(empty_cherry_pick_advice), stderr);
if (whence == FROM_CHERRY_PICK_SINGLE)
fputs(_(empty_cherry_pick_advice_single), stderr);
- else
+ else if (whence == FROM_CHERRY_PICK_MULTI)
fputs(_(empty_cherry_pick_advice_multi), stderr);
+ else
+ fputs(_(empty_rebase_pick_advice), stderr);
}
return 0;
}
@@ -1152,6 +1160,8 @@ static int parse_and_validate_options(int argc, const char *argv[],
die(_("You are in the middle of a merge -- cannot amend."));
else if (is_from_cherry_pick(whence))
die(_("You are in the middle of a cherry-pick -- cannot amend."));
+ else if (whence == FROM_REBASE_PICK)
+ die(_("You are in the middle of a rebase -- cannot amend."));
}
if (fixup_message && squash_message)
die(_("Options --squash and --fixup cannot be used together"));
@@ -1173,7 +1183,8 @@ static int parse_and_validate_options(int argc, const char *argv[],
use_message = edit_message;
if (amend && !use_message && !fixup_message)
use_message = "HEAD";
- if (!use_message && !is_from_cherry_pick(whence) && renew_authorship)
+ if (!use_message && !is_from_cherry_pick(whence) &&
+ !is_from_rebase(whence) && renew_authorship)
die(_("--reset-author can be used only with -C, -c or --amend."));
if (use_message) {
use_message_buffer = read_commit_message(use_message);
@@ -1182,7 +1193,8 @@ static int parse_and_validate_options(int argc, const char *argv[],
author_message_buffer = use_message_buffer;
}
}
- if (is_from_cherry_pick(whence) && !renew_authorship) {
+ if ((is_from_cherry_pick(whence) || whence == FROM_REBASE_PICK) &&
+ !renew_authorship) {
author_message = "CHERRY_PICK_HEAD";
author_message_buffer = read_commit_message(author_message);
}
@@ -1602,6 +1614,8 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
if (!reflog_msg)
reflog_msg = is_from_cherry_pick(whence)
? "commit (cherry-pick)"
+ : is_from_rebase(whence)
+ ? "commit (rebase)"
: "commit";
commit_list_insert(current_head, &parents);
}
