[PATCH v2 11/15] contrib: change the prompt for interactive-based rebases

From: "Elijah Newren via GitGitGadget" <gitgitgadget@gmail.com>
To: git@vger.kernel.org
Cc: Johannes.Schindelin@gmx.de, phillip.wood@dunelm.org.uk,
	liu.denton@gmail.com, gitster@pobox.com, plroskin@gmail.com,
	alban.gruin@gmail.com, szeder.dev@gmail.com,
	Junio C Hamano <gitster@pobox.com>,
	Elijah Newren <newren@gmail.com>
Subject: [PATCH v2 11/15] contrib: change the prompt for interactive-based rebases
Date: Mon, 23 Dec 2019 18:49:55 +0000	[thread overview]
Message-ID: <94b5a3051d743e8f54c21bc4cd0413f3c0dd05fa.1577127000.git.gitgitgadget@gmail.com> (raw)
In-Reply-To: <pull.679.v2.git.git.1577126999.gitgitgadget@gmail.com>

From: Elijah Newren <newren@gmail.com>

In the past, we had different prompts for different types of rebases:
   REBASE: for am-based rebases
   REBASE-m: for merge-based rebases
   REBASE-i: for interactive-based rebases

It's not clear why this distinction was necessary or helpful; when the
prompt was added in commit e75201963f67 ("Improve bash prompt to detect
various states like an unfinished merge", 2007-09-30), it simply added
these three different types.  Perhaps there was a useful purpose back
then, but there have been some changes:

  * The merge backend was deleted after being implemented on top of the
    interactive backend, causing the prompt for merge-based rebases to
    change from REBASE-m to REBASE-i.
  * The interactive backend is used for multiple different types of
    non-interactive rebases, so the "-i" part of the prompt doesn't
    really mean what it used to.
  * Rebase backends have gained more abilities and have a great deal of
    overlap, sometimes making it hard to distinguish them.
  * Behavioral differences between the backends have also been ironed
    out.
  * We want to change the default backend from am to interactive, which
    means people would get "REBASE-i" by default if we didn't change
    the prompt, and only if they specified --am or --whitespace or -C
    would they get the "REBASE" prompt.
  * In the future, we plan to have "--whitespace", "-C", and even "--am"
    run the interactive backend once it can handle everything the
    am-backend can.

For all these reasons, make the prompt for any type of rebase just be
"REBASE".

Signed-off-by: Elijah Newren <newren@gmail.com>
---
 contrib/completion/git-prompt.sh | 4 ++--
 t/t9903-bash-prompt.sh           | 8 ++++----
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/contrib/completion/git-prompt.sh b/contrib/completion/git-prompt.sh
index 1d510cd47b..8f8a22ba60 100644
--- a/contrib/completion/git-prompt.sh
+++ b/contrib/completion/git-prompt.sh
@@ -430,9 +430,9 @@ __git_ps1 ()
 		__git_eread "$g/rebase-merge/msgnum" step
 		__git_eread "$g/rebase-merge/end" total
 		if [ -f "$g/rebase-merge/interactive" ]; then
-			r="|REBASE-i"
+			r="|REBASE"
 		else
-			r="|REBASE-m"
+			r="|REBASE"
 		fi
 	else
 		if [ -d "$g/rebase-apply" ]; then
diff --git a/t/t9903-bash-prompt.sh b/t/t9903-bash-prompt.sh
index 88bc733ad6..7ca35d358d 100755
--- a/t/t9903-bash-prompt.sh
+++ b/t/t9903-bash-prompt.sh
@@ -163,7 +163,7 @@ test_expect_success 'prompt - inside bare repository' '
 '
 
 test_expect_success 'prompt - interactive rebase' '
-	printf " (b1|REBASE-i 2/3)" >expected &&
+	printf " (b1|REBASE 2/3)" >expected &&
 	write_script fake_editor.sh <<-\EOF &&
 		echo "exec echo" >"$1"
 		echo "edit $(git log -1 --format="%h")" >>"$1"
@@ -180,7 +180,7 @@ test_expect_success 'prompt - interactive rebase' '
 '
 
 test_expect_success 'prompt - rebase merge' '
-	printf " (b2|REBASE-i 1/3)" >expected &&
+	printf " (b2|REBASE 1/3)" >expected &&
 	git checkout b2 &&
 	test_when_finished "git checkout master" &&
 	test_must_fail git rebase --merge b1 b2 &&
@@ -189,11 +189,11 @@ test_expect_success 'prompt - rebase merge' '
 	test_cmp expected "$actual"
 '
 
-test_expect_success 'prompt - rebase' '
+test_expect_success 'prompt - rebase am' '
 	printf " (b2|REBASE 1/3)" >expected &&
 	git checkout b2 &&
 	test_when_finished "git checkout master" &&
-	test_must_fail git rebase b1 b2 &&
+	test_must_fail git rebase --am b1 b2 &&
 	test_when_finished "git rebase --abort" &&
 	__git_ps1 >"$actual" &&
 	test_cmp expected "$actual"
-- 
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