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

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From: ZheNing Hu <adlternative@xxxxxxxxx>

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".

Mentored-by: Christian Couder <christian.couder@xxxxxxxxx>
Mentored-by Hariom Verma <hariom18599@xxxxxxxxx>:
Helped-by: Phillip Wood <phillip.wood@xxxxxxxxxxxxx>
Hepled-by: Junio C Hamano <gitster@xxxxxxxxx>
Signed-off-by: ZheNing Hu <adlternative@xxxxxxxxx>
---
 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 &&
 
-- 
gitgitgadget



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