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From: "Elijah Newren via GitGitGadget" <gitgitgadget@gmail.com>
To: git@vger.kernel.org
Cc: phillip.wood123@gmail.com, Johannes.Schindelin@gmx.de,
	bturner@atlassian.com, sami@boukortt.com,
	Elijah Newren <newren@gmail.com>,
	Elijah Newren <newren@gmail.com>
Subject: [PATCH v2 1/3] rebase -i: mark commits that begin empty in todo editor
Date: Fri, 10 Apr 2020 17:51:32 +0000
Message-ID: <0d94eea376a65304bc31fd1841216a04b5c15709.1586541094.git.gitgitgadget@gmail.com> (raw)
In-Reply-To: <pull.757.v2.git.git.1586541094.gitgitgadget@gmail.com>

From: Elijah Newren <newren@gmail.com>

While many users who intentionally create empty commits do not want them
thrown away by a rebase, there are third-party tools that generate empty
commits that a user might not want.  In the past, users have used rebase
to get rid of such commits (a side-effect of the fact that the --apply
backend is not currently capable of keeping them).  While such users
could fire up an interactive rebase and just remove the lines
corresponding to empty commits, that might be difficult if the
third-party tool generates many of them.  Simplify this task for users
by marking such lines with a suffix of " # empty" in the todo list.

Suggested-by: Sami Boukortt <sami@boukortt.com>
Signed-off-by: Elijah Newren <newren@gmail.com>
---
 Documentation/git-rebase.txt | 3 ++-
 sequencer.c                  | 5 +++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/Documentation/git-rebase.txt b/Documentation/git-rebase.txt
index f7a6033607f..8ab0558aca2 100644
--- a/Documentation/git-rebase.txt
+++ b/Documentation/git-rebase.txt
@@ -620,7 +620,8 @@ commits that started empty, though these are rare in practice.  It
 also drops commits that become empty and has no option for controlling
 this behavior.
 
-The merge backend keeps intentionally empty commits.  Similar to the
+The merge backend keeps intentionally empty commits (though with -i
+they are marked as empty in the todo list editor).  Similar to the
 apply backend, by default the merge backend drops commits that become
 empty unless -i/--interactive is specified (in which case it stops and
 asks the user what to do).  The merge backend also has an
diff --git a/sequencer.c b/sequencer.c
index e528225e787..ce9fd27a878 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -4656,6 +4656,9 @@ static int make_script_with_merges(struct pretty_print_context *pp,
 			strbuf_addf(&buf, "%s %s %s", cmd_pick,
 				    oid_to_hex(&commit->object.oid),
 				    oneline.buf);
+			if (is_empty)
+				strbuf_addf(&buf, " %c empty",
+					    comment_line_char);
 
 			FLEX_ALLOC_STR(entry, string, buf.buf);
 			oidcpy(&entry->entry.oid, &commit->object.oid);
@@ -4861,6 +4864,8 @@ int sequencer_make_script(struct repository *r, struct strbuf *out, int argc,
 		strbuf_addf(out, "%s %s ", insn,
 			    oid_to_hex(&commit->object.oid));
 		pretty_print_commit(&pp, commit, out);
+		if (is_empty)
+			strbuf_addf(out, " %c empty", comment_line_char);
 		strbuf_addch(out, '\n');
 	}
 	return 0;
-- 
gitgitgadget


  reply index

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-09 23:26 [PATCH] " Elijah Newren via GitGitGadget
2020-04-10  0:50 ` Junio C Hamano
2020-04-10  2:06   ` Bryan Turner
2020-04-10  4:57     ` Junio C Hamano
2020-04-10 17:51 ` [PATCH v2 0/3] " Elijah Newren via GitGitGadget
2020-04-10 17:51   ` Elijah Newren via GitGitGadget [this message]
2020-04-10 17:51   ` [PATCH v2 2/3] rebase: reinstate --no-keep-empty Elijah Newren via GitGitGadget
2020-04-10 20:37     ` Junio C Hamano
2020-04-10 21:41       ` Elijah Newren
2020-04-10 17:51   ` [PATCH v2 3/3] rebase: fix an incompatible-options error message Elijah Newren via GitGitGadget
2020-04-10 20:42   ` [PATCH v2 0/3] rebase -i: mark commits that begin empty in todo editor Junio C Hamano
2020-04-10 21:04     ` Junio C Hamano
2020-04-10 21:14       ` Junio C Hamano
2020-04-10 22:11         ` Elijah Newren
2020-04-10 21:29     ` Junio C Hamano
2020-04-10 22:13       ` Elijah Newren
2020-04-10 22:30         ` Junio C Hamano
2020-04-11  0:07           ` Elijah Newren
2020-04-11 21:14             ` Junio C Hamano
2020-04-11  2:44   ` [PATCH v3 0/4] " Elijah Newren via GitGitGadget
2020-04-11  2:44     ` [PATCH v3 1/4] " Elijah Newren via GitGitGadget
2020-04-15 20:52       ` Junio C Hamano
2020-04-11  2:44     ` [PATCH v3 2/4] rebase: reinstate --no-keep-empty Elijah Newren via GitGitGadget
2020-04-11  2:44     ` [PATCH v3 3/4] rebase: fix an incompatible-options error message Elijah Newren via GitGitGadget
2020-04-11  2:44     ` [PATCH v3 4/4] rebase --merge: optionally skip upstreamed commits Jonathan Tan via GitGitGadget
2020-04-11 18:12       ` Jonathan Tan
2020-04-14  9:11     ` [PATCH v3 0/4] rebase -i: mark commits that begin empty in todo editor Phillip Wood

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