From 0634434e2a3e40ef4af5013349202491d55fe1d7 Mon Sep 17 00:00:00 2001
From: Teng Long <dyroneteng@gmail.com>
Date: Tue, 8 Nov 2022 14:35:56 +0800
Subject: [PATCH 1/6] notes.c: cleanup 'strbuf_grow' call in 'append_edit'

Let's cleanup the unnecessary 'strbuf_grow' call in 'append_edit'. This
"strbuf_grow(&d.buf, size + 1);" is prepared for insert a blank line if
needed, but actually when inserting, "strbuf_insertstr(&d.buf, 0,
"\n");" will do the "grow" for us.

348f199b (builtin-notes: Refactor handling of -F option to allow
combining -m and -F, 2010-02-13) added these to mimic the code
introduced by 2347fae5 (builtin-notes: Add "append" subcommand for
appending to note objects, 2010-02-13) that reads in previous note
before the message.  And the resulting code with explicit sizing is
carried to this day.

In the context of reading an existing note in, exact sizing may have
made sense, but because the resulting note needs cleansing with
stripspace() when appending with this option, such an exact sizing
does not buy us all that much in practice.

It may help avoiding overallocation due to ALLOC_GROW() slop, but
nobody can feed so many long messages for it to matter from the
command line.

Signed-off-by: Teng Long <dyroneteng@gmail.com>
Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Helped-by: Junio C Hamano <gitster@pobox.com>
---
 builtin/notes.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/builtin/notes.c b/builtin/notes.c
index 4ff44f1e3d09bf..c501c6eebbce0b 100644
--- a/builtin/notes.c
+++ b/builtin/notes.c
@@ -219,7 +219,6 @@ static int parse_msg_arg(const struct option *opt, const char *arg, int unset)
 
 	BUG_ON_OPT_NEG(unset);
 
-	strbuf_grow(&d->buf, strlen(arg) + 2);
 	if (d->buf.len)
 		strbuf_addch(&d->buf, '\n');
 	strbuf_addstr(&d->buf, arg);
@@ -623,7 +622,6 @@ static int append_edit(int argc, const char **argv, const char *prefix)
 		char *prev_buf = repo_read_object_file(the_repository, note,
 						       &type, &size);
 
-		strbuf_grow(&d.buf, size + 1);
 		if (d.buf.len && prev_buf && size)
 			strbuf_insertstr(&d.buf, 0, "\n");
 		if (prev_buf && size)

From 4ad7840584191d6bbb3fcba72887aa569c797a15 Mon Sep 17 00:00:00 2001
From: Teng Long <dyroneteng@gmail.com>
Date: Wed, 1 Feb 2023 11:43:30 +0800
Subject: [PATCH 2/6] notes.c: use designated initializers for clarity

The "struct note_data d = { 0, 0, NULL, STRBUF_INIT };" style could be
replaced with designated initializer for clarity.

Signed-off-by: Teng Long <dyroneteng@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 builtin/notes.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/builtin/notes.c b/builtin/notes.c
index c501c6eebbce0b..9d8ca795827af2 100644
--- a/builtin/notes.c
+++ b/builtin/notes.c
@@ -405,7 +405,7 @@ static int add(int argc, const char **argv, const char *prefix)
 	struct notes_tree *t;
 	struct object_id object, new_note;
 	const struct object_id *note;
-	struct note_data d = { 0, 0, NULL, STRBUF_INIT };
+	struct note_data d = { .buf = STRBUF_INIT };
 	struct option options[] = {
 		OPT_CALLBACK_F('m', "message", &d, N_("message"),
 			N_("note contents as a string"), PARSE_OPT_NONEG,
@@ -571,7 +571,7 @@ static int append_edit(int argc, const char **argv, const char *prefix)
 	const struct object_id *note;
 	char *logmsg;
 	const char * const *usage;
-	struct note_data d = { 0, 0, NULL, STRBUF_INIT };
+	struct note_data d = { .buf = STRBUF_INIT };
 	struct option options[] = {
 		OPT_CALLBACK_F('m', "message", &d, N_("message"),
 			N_("note contents as a string"), PARSE_OPT_NONEG,

From c2fc2091d2afbb5911220bb55574fae11cf1c1dc Mon Sep 17 00:00:00 2001
From: Teng Long <dyroneteng@gmail.com>
Date: Thu, 13 Apr 2023 17:46:14 +0800
Subject: [PATCH 3/6] t3321: add test cases about the notes stripspace behavior

Signed-off-by: Teng Long <dyroneteng@gmail.com>
---
 t/t3321-notes-stripspace.sh | 291 ++++++++++++++++++++++++++++++++++++
 1 file changed, 291 insertions(+)
 create mode 100755 t/t3321-notes-stripspace.sh

diff --git a/t/t3321-notes-stripspace.sh b/t/t3321-notes-stripspace.sh
new file mode 100755
index 00000000000000..89977873461111
--- /dev/null
+++ b/t/t3321-notes-stripspace.sh
@@ -0,0 +1,291 @@
+#!/bin/sh
+#
+# Copyright (c) 2023 Teng Long
+#
+
+test_description='Test commit notes with stripspace behavior'
+
+. ./test-lib.sh
+
+MULTI_LF="$LF$LF$LF"
+write_script fake_editor <<\EOF
+echo "$MSG" >"$1"
+echo "$MSG" >&2
+EOF
+GIT_EDITOR=./fake_editor
+export GIT_EDITOR
+
+test_expect_success 'setup the commit' '
+	test_commit 1st
+'
+
+test_expect_success 'add note by editor' '
+	test_when_finished "git notes remove" &&
+	cat >expect <<-EOF &&
+	first-line
+
+	second-line
+	EOF
+
+	MSG="${LF}first-line${MULTI_LF}second-line${LF}" git notes add  &&
+	git notes show >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'add note by specifying single "-m"' '
+	test_when_finished "git notes remove" &&
+	cat >expect <<-EOF &&
+	first-line
+
+	second-line
+	EOF
+
+	git notes add -m "${LF}first-line${MULTI_LF}second-line${LF}" &&
+	git notes show >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'add note by specifying multiple "-m"' '
+	test_when_finished "git notes remove" &&
+	cat >expect <<-EOF &&
+	first-line
+
+	second-line
+	EOF
+
+	git notes add -m "${LF}" \
+		      -m "first-line" \
+		      -m "${MULTI_LF}" \
+		      -m "second-line" \
+		      -m "${LF}" &&
+	git notes show >actual &&
+	test_cmp expect actual
+'
+
+
+test_expect_success 'append note by editor' '
+	test_when_finished "git notes remove" &&
+	cat >expect <<-EOF &&
+	first-line
+
+	second-line
+	EOF
+
+	git notes add -m "first-line" &&
+	MSG="${MULTI_LF}second-line${LF}" git notes append  &&
+	git notes show >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'append note by specifying single "-m"' '
+	test_when_finished "git notes remove" &&
+	cat >expect <<-EOF &&
+	first-line
+
+	second-line
+	EOF
+
+	git notes add -m "${LF}first-line" &&
+	git notes append -m "${MULTI_LF}second-line${LF}" &&
+	git notes show >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'append note by specifying multiple "-m"' '
+	test_when_finished "git notes remove" &&
+	cat >expect <<-EOF &&
+	first-line
+
+	second-line
+	EOF
+
+	git notes add -m "${LF}first-line" &&
+	git notes append -m "${MULTI_LF}" \
+		      -m "second-line" \
+		      -m "${LF}" &&
+	git notes show >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'add note by specifying single "-F"' '
+	test_when_finished "git notes remove" &&
+	cat >expect <<-EOF &&
+	first-line
+
+	second-line
+	EOF
+
+	cat >note-file <<-EOF &&
+	${LF}
+	first-line
+	${MULTI_LF}
+	second-line
+	${LF}
+	EOF
+
+	git notes add -F note-file &&
+	git notes show >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'add notes by specifying multiple "-F"' '
+	test_when_finished "git notes remove" &&
+	cat >expect <<-EOF &&
+	file-1-first-line
+
+	file-1-second-line
+
+	file-2-first-line
+
+	file-2-second-line
+	EOF
+
+	cat >note-file-1 <<-EOF &&
+	${LF}
+	file-1-first-line
+	${MULTI_LF}
+	file-1-second-line
+	${LF}
+	EOF
+
+	cat >note-file-2 <<-EOF &&
+	${LF}
+	file-2-first-line
+	${MULTI_LF}
+	file-2-second-line
+	${LF}
+	EOF
+
+	git notes add -F note-file-1 -F note-file-2 &&
+	git notes show >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'append note by specifying single "-F"' '
+	test_when_finished "git notes remove" &&
+	cat >expect <<-EOF &&
+	initial-line
+
+	first-line
+
+	second-line
+	EOF
+
+	cat >note-file <<-EOF &&
+	${LF}
+	first-line
+	${MULTI_LF}
+	second-line
+	${LF}
+	EOF
+
+	git notes add -m "initial-line" &&
+	git notes append -F note-file &&
+	git notes show >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'append notes by specifying multiple "-F"' '
+	test_when_finished "git notes remove" &&
+	cat >expect <<-EOF &&
+	initial-line
+
+	file-1-first-line
+
+	file-1-second-line
+
+	file-2-first-line
+
+	file-2-second-line
+	EOF
+
+	cat >note-file-1 <<-EOF &&
+	${LF}
+	file-1-first-line
+	${MULTI_LF}
+	file-1-second-line
+	${LF}
+	EOF
+
+	cat >note-file-2 <<-EOF &&
+	${LF}
+	file-2-first-line
+	${MULTI_LF}
+	file-2-second-line
+	${LF}
+	EOF
+
+	git notes add -m "initial-line" &&
+	git notes append -F note-file-1 -F note-file-2 &&
+	git notes show >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'add notes with empty messages' '
+	rev=$(git rev-parse HEAD) &&
+	git notes add -m "${LF}" \
+		      -m "${MULTI_LF}" \
+		      -m "${LF}" >actual 2>&1 &&
+	test_i18ngrep "Removing note for object" actual
+'
+
+test_expect_success 'add note by specifying "-C" , do not stripspace is the default behavior' '
+	test_when_finished "git notes remove" &&
+	cat >expect <<-EOF &&
+	${LF}
+	first-line
+	${MULTI_LF}
+	second-line
+	${LF}
+	EOF
+
+	cat expect | git hash-object -w --stdin >blob &&
+	git notes add -C $(cat blob) &&
+	git notes show >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'add notes with "-C" and "-m", "-m" will stripspace all together' '
+	test_when_finished "git notes remove" &&
+	cat >data <<-EOF &&
+	${LF}
+	first-line
+	${MULTI_LF}
+	second-line
+	${LF}
+	EOF
+
+	cat >expect <<-EOF &&
+	first-line
+
+	second-line
+
+	third-line
+	EOF
+
+	cat data | git hash-object -w --stdin >blob &&
+	git notes add -C $(cat blob) -m "third-line" &&
+	git notes show >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'add notes with "-m" and "-C", "-C" will not stripspace all together' '
+	test_when_finished "git notes remove" &&
+	cat >data <<-EOF &&
+
+	second-line
+	EOF
+
+	cat >expect <<-EOF &&
+	first-line
+	${LF}
+	second-line
+	EOF
+
+	cat data | git hash-object -w --stdin >blob &&
+	git notes add -m "first-line" -C $(cat blob)  &&
+	git notes show >actual &&
+	test_cmp expect actual
+'
+
+test_done

From dda9cda65fbd988ecc4d2b1ab940dd70abad260f Mon Sep 17 00:00:00 2001
From: Teng Long <dyroneteng@gmail.com>
Date: Tue, 14 Feb 2023 17:32:49 +0800
Subject: [PATCH 4/6] notes.c: introduce '--separator=<paragraph-break>' option

When adding new notes or appending to an existing notes, we will
insert a blank line between the paragraphs, like:

     $ git notes add -m foo -m bar
     $ git notes show HEAD
     foo

     bar

The default behavour sometimes is not enough, the user may want
to use a custom delimiter between paragraphs, like when
specifying '-m', '-F', '-C', '-c' options. So this commit
introduce a new '--separator' option for 'git notes add' and
'git notes append', for example when executing:

    $ git notes add -m foo -m bar --separator="-"
    $ git notes show HEAD
    foo
    -
    bar

a newline is added to the value given to --separator if it
does not end with one already. So when executing:

      $ git notes add -m foo -m bar --separator="-"
and
      $ export LF="
      "
      $ git notes add -m foo -m bar --separator="-$LF"

Both the two exections produce the same result.

The reason we use a "strbuf" array to concat but not "string_list", is
that the binary file content may contain '\0' in the middle, this will
cause the corrupt result if using a string to save.

Signed-off-by: Teng Long <dyroneteng@gmail.com>
---
 Documentation/git-notes.txt |  21 ++++--
 builtin/notes.c             | 108 ++++++++++++++++++++++++-------
 t/t3301-notes.sh            | 126 ++++++++++++++++++++++++++++++++++++
 3 files changed, 226 insertions(+), 29 deletions(-)

diff --git a/Documentation/git-notes.txt b/Documentation/git-notes.txt
index efbc10f0f598ec..59980b21a8bb38 100644
--- a/Documentation/git-notes.txt
+++ b/Documentation/git-notes.txt
@@ -9,9 +9,9 @@ SYNOPSIS
 --------
 [verse]
 'git notes' [list [<object>]]
-'git notes' add [-f] [--allow-empty] [-F <file> | -m <msg> | (-c | -C) <object>] [<object>]
+'git notes' add [-f] [--allow-empty] [--separator=<paragraph-break>] [-F <file> | -m <msg> | (-c | -C) <object>] [<object>]
 'git notes' copy [-f] ( --stdin | <from-object> [<to-object>] )
-'git notes' append [--allow-empty] [-F <file> | -m <msg> | (-c | -C) <object>] [<object>]
+'git notes' append [--allow-empty] [--separator=<paragraph-break>] [-F <file> | -m <msg> | (-c | -C) <object>] [<object>]
 'git notes' edit [--allow-empty] [<object>]
 'git notes' show [<object>]
 'git notes' merge [-v | -q] [-s <strategy> ] <notes-ref>
@@ -65,7 +65,9 @@ add::
 	However, if you're using `add` interactively (using an editor
 	to supply the notes contents), then - instead of aborting -
 	the existing notes will be opened in the editor (like the `edit`
-	subcommand).
+	subcommand). If you specify multiple `-m` and `-F`, a blank
+	line will be inserted between the messages. Use the `--separator`
+	option to insert other delimiters.
 
 copy::
 	Copy the notes for the first object onto the second object (defaults to
@@ -85,8 +87,12 @@ corresponding <to-object>.  (The optional `<rest>` is ignored so that
 the command can read the input given to the `post-rewrite` hook.)
 
 append::
-	Append to the notes of an existing object (defaults to HEAD).
-	Creates a new notes object if needed.
+	Append new message(s) given by `-m` or `-F` options to an
+	existing note, or add them as a new note if one does not
+	exist, for the object (defaults to HEAD).  When appending to
+	an existing note, a blank line is added before each new
+	message as an inter-paragraph separator.  The separator can
+	be customized with the `--separator` option.
 
 edit::
 	Edit the notes for a given object (defaults to HEAD).
@@ -159,6 +165,11 @@ OPTIONS
 	Allow an empty note object to be stored. The default behavior is
 	to automatically remove empty notes.
 
+--separator <paragraph-break>::
+	Specify a string used as a custom inter-paragraph separator
+	(a newline is added at the end as needed).  Defaults to a
+	blank line.
+
 --ref <ref>::
 	Manipulate the notes tree in <ref>.  This overrides
 	`GIT_NOTES_REF` and the "core.notesRef" configuration.  The ref
diff --git a/builtin/notes.c b/builtin/notes.c
index 9d8ca795827af2..ea41ab3e4c8e75 100644
--- a/builtin/notes.c
+++ b/builtin/notes.c
@@ -8,6 +8,7 @@
  */
 
 #include "cache.h"
+#include "alloc.h"
 #include "config.h"
 #include "builtin.h"
 #include "gettext.h"
@@ -27,11 +28,12 @@
 #include "worktree.h"
 #include "write-or-die.h"
 
+static const char *separator = "\n";
 static const char * const git_notes_usage[] = {
 	N_("git notes [--ref <notes-ref>] [list [<object>]]"),
-	N_("git notes [--ref <notes-ref>] add [-f] [--allow-empty] [-m <msg> | -F <file> | (-c | -C) <object>] [<object>]"),
+	N_("git notes [--ref <notes-ref>] add [-f] [--allow-empty] [--separator=<paragraph-break>] [-m <msg> | -F <file> | (-c | -C) <object>] [<object>]"),
 	N_("git notes [--ref <notes-ref>] copy [-f] <from-object> <to-object>"),
-	N_("git notes [--ref <notes-ref>] append [--allow-empty] [-m <msg> | -F <file> | (-c | -C) <object>] [<object>]"),
+	N_("git notes [--ref <notes-ref>] append [--allow-empty] [--separator=<paragraph-break>] [-m <msg> | -F <file> | (-c | -C) <object>] [<object>]"),
 	N_("git notes [--ref <notes-ref>] edit [--allow-empty] [<object>]"),
 	N_("git notes [--ref <notes-ref>] show [<object>]"),
 	N_("git notes [--ref <notes-ref>] merge [-v | -q] [-s <strategy>] <notes-ref>"),
@@ -99,11 +101,19 @@ static const char * const git_notes_get_ref_usage[] = {
 static const char note_template[] =
 	N_("Write/edit the notes for the following object:");
 
+struct note_msg {
+	int stripspace;
+	struct strbuf buf;
+};
+
 struct note_data {
 	int given;
 	int use_editor;
 	char *edit_path;
 	struct strbuf buf;
+	struct note_msg **messages;
+	size_t msg_nr;
+	size_t msg_alloc;
 };
 
 static void free_note_data(struct note_data *d)
@@ -113,6 +123,12 @@ static void free_note_data(struct note_data *d)
 		free(d->edit_path);
 	}
 	strbuf_release(&d->buf);
+
+	while (d->msg_nr--) {
+		strbuf_release(&d->messages[d->msg_nr]->buf);
+		free(d->messages[d->msg_nr]);
+	}
+	free(d->messages);
 }
 
 static int list_each_note(const struct object_id *object_oid,
@@ -213,65 +229,96 @@ static void write_note_data(struct note_data *d, struct object_id *oid)
 	}
 }
 
+static void insert_separator(struct strbuf *message, size_t pos)
+{
+	if (separator[strlen(separator) - 1] == '\n')
+		strbuf_addstr(message, separator);
+	else
+		strbuf_insertf(message, pos, "%s%s", separator, "\n");
+}
+
+static void concat_messages(struct note_data *d)
+{
+	struct strbuf msg = STRBUF_INIT;
+	size_t i;
+
+	for (i = 0; i < d->msg_nr ; i++) {
+		if (d->buf.len)
+			insert_separator(&d->buf, d->buf.len);
+		strbuf_add(&msg, d->messages[i]->buf.buf, d->messages[i]->buf.len);
+		strbuf_addbuf(&d->buf, &msg);
+		if (d->messages[i]->stripspace)
+			strbuf_stripspace(&d->buf, 0);
+		strbuf_reset(&msg);
+	}
+	strbuf_release(&msg);
+}
+
 static int parse_msg_arg(const struct option *opt, const char *arg, int unset)
 {
 	struct note_data *d = opt->value;
+	struct note_msg *msg = xmalloc(sizeof(*msg));
 
 	BUG_ON_OPT_NEG(unset);
 
-	if (d->buf.len)
-		strbuf_addch(&d->buf, '\n');
-	strbuf_addstr(&d->buf, arg);
-	strbuf_stripspace(&d->buf, 0);
-
-	d->given = 1;
+	strbuf_init(&msg->buf, strlen(arg));
+	strbuf_addstr(&msg->buf, arg);
+	ALLOC_GROW_BY(d->messages, d->msg_nr, 1, d->msg_alloc);
+	d->messages[d->msg_nr - 1] = msg;
+	msg->stripspace = 1;
 	return 0;
 }
 
 static int parse_file_arg(const struct option *opt, const char *arg, int unset)
 {
 	struct note_data *d = opt->value;
+	struct note_msg *msg = xmalloc(sizeof(*msg));
 
 	BUG_ON_OPT_NEG(unset);
 
-	if (d->buf.len)
-		strbuf_addch(&d->buf, '\n');
+	strbuf_init(&msg->buf , 0);
 	if (!strcmp(arg, "-")) {
-		if (strbuf_read(&d->buf, 0, 1024) < 0)
+		if (strbuf_read(&msg->buf, 0, 1024) < 0)
 			die_errno(_("cannot read '%s'"), arg);
-	} else if (strbuf_read_file(&d->buf, arg, 1024) < 0)
+	} else if (strbuf_read_file(&msg->buf, arg, 1024) < 0)
 		die_errno(_("could not open or read '%s'"), arg);
-	strbuf_stripspace(&d->buf, 0);
 
-	d->given = 1;
+	ALLOC_GROW_BY(d->messages, d->msg_nr, 1, d->msg_alloc);
+	d->messages[d->msg_nr - 1] = msg;
+	msg->stripspace = 1;
 	return 0;
 }
 
 static int parse_reuse_arg(const struct option *opt, const char *arg, int unset)
 {
 	struct note_data *d = opt->value;
-	char *buf;
+	struct note_msg *msg = xmalloc(sizeof(*msg));
+	char *value;
 	struct object_id object;
 	enum object_type type;
 	unsigned long len;
 
 	BUG_ON_OPT_NEG(unset);
 
-	if (d->buf.len)
-		strbuf_addch(&d->buf, '\n');
-
+	strbuf_init(&msg->buf, 0);
 	if (repo_get_oid(the_repository, arg, &object))
 		die(_("failed to resolve '%s' as a valid ref."), arg);
-	if (!(buf = repo_read_object_file(the_repository, &object, &type, &len)))
+	if (!(value = repo_read_object_file(the_repository, &object, &type, &len)))
 		die(_("failed to read object '%s'."), arg);
 	if (type != OBJ_BLOB) {
-		free(buf);
+		strbuf_release(&msg->buf);
+		free(value);
+		free(msg);
 		die(_("cannot read note data from non-blob object '%s'."), arg);
 	}
-	strbuf_add(&d->buf, buf, len);
-	free(buf);
 
-	d->given = 1;
+	strbuf_add(&msg->buf, value, len);
+	free(value);
+
+	msg->buf.len = len;
+	ALLOC_GROW_BY(d->messages, d->msg_nr, 1, d->msg_alloc);
+	d->messages[d->msg_nr - 1] = msg;
+	msg->stripspace = 0;
 	return 0;
 }
 
@@ -406,6 +453,7 @@ static int add(int argc, const char **argv, const char *prefix)
 	struct object_id object, new_note;
 	const struct object_id *note;
 	struct note_data d = { .buf = STRBUF_INIT };
+
 	struct option options[] = {
 		OPT_CALLBACK_F('m', "message", &d, N_("message"),
 			N_("note contents as a string"), PARSE_OPT_NONEG,
@@ -422,6 +470,8 @@ static int add(int argc, const char **argv, const char *prefix)
 		OPT_BOOL(0, "allow-empty", &allow_empty,
 			N_("allow storing empty note")),
 		OPT__FORCE(&force, N_("replace existing notes"), PARSE_OPT_NOCOMPLETE),
+		OPT_STRING(0, "separator", &separator, N_("separator"),
+			N_("insert <paragraph-break> between paragraphs")),
 		OPT_END()
 	};
 
@@ -433,6 +483,10 @@ static int add(int argc, const char **argv, const char *prefix)
 		usage_with_options(git_notes_add_usage, options);
 	}
 
+	if (d.msg_nr)
+		concat_messages(&d);
+	d.given = !!d.buf.len;
+
 	object_ref = argc > 1 ? argv[1] : "HEAD";
 
 	if (repo_get_oid(the_repository, object_ref, &object))
@@ -587,6 +641,8 @@ static int append_edit(int argc, const char **argv, const char *prefix)
 			parse_reuse_arg),
 		OPT_BOOL(0, "allow-empty", &allow_empty,
 			N_("allow storing empty note")),
+		OPT_STRING(0, "separator", &separator, N_("separator"),
+			N_("insert <paragraph-break> between paragraphs")),
 		OPT_END()
 	};
 	int edit = !strcmp(argv[0], "edit");
@@ -600,6 +656,10 @@ static int append_edit(int argc, const char **argv, const char *prefix)
 		usage_with_options(usage, options);
 	}
 
+	if (d.msg_nr)
+		concat_messages(&d);
+	d.given = !!d.buf.len;
+
 	if (d.given && edit)
 		fprintf(stderr, _("The -m/-F/-c/-C options have been deprecated "
 			"for the 'edit' subcommand.\n"
@@ -623,7 +683,7 @@ static int append_edit(int argc, const char **argv, const char *prefix)
 						       &type, &size);
 
 		if (d.buf.len && prev_buf && size)
-			strbuf_insertstr(&d.buf, 0, "\n");
+			insert_separator(&d.buf, 0);
 		if (prev_buf && size)
 			strbuf_insert(&d.buf, 0, prev_buf, size);
 		free(prev_buf);
diff --git a/t/t3301-notes.sh b/t/t3301-notes.sh
index 3288aaec7dc936..dbadcf13754017 100755
--- a/t/t3301-notes.sh
+++ b/t/t3301-notes.sh
@@ -362,6 +362,7 @@ test_expect_success 'do not create empty note with -m ""' '
 '
 
 test_expect_success 'create note with combination of -m and -F' '
+	test_when_finished git notes remove HEAD &&
 	cat >expect-combine_m_and_F <<-EOF &&
 		foo
 
@@ -380,6 +381,25 @@ test_expect_success 'create note with combination of -m and -F' '
 	test_cmp expect-combine_m_and_F actual
 '
 
+test_expect_success 'create note with combination of -m and -F and --separator' '
+	cat >expect-combine_m_and_F <<-\EOF &&
+	foo
+	-------
+	xyzzy
+	-------
+	bar
+	-------
+	zyxxy
+	-------
+	baz
+	EOF
+	echo "xyzzy" >note_a &&
+	echo "zyxxy" >note_b &&
+	git notes add -m "foo" -F note_a -m "bar" -F note_b -m "baz" --separator "-------" &&
+	git notes show >actual &&
+	test_cmp expect-combine_m_and_F actual
+'
+
 test_expect_success 'remove note with "git notes remove"' '
 	git notes remove HEAD^ &&
 	git notes remove &&
@@ -521,6 +541,85 @@ test_expect_success 'listing non-existing notes fails' '
 	test_must_be_empty actual
 '
 
+test_expect_success 'append: specify an empty separator' '
+	test_when_finished git notes remove HEAD &&
+	cat >expect <<-\EOF &&
+	notes-1
+
+	notes-2
+	EOF
+
+	git notes add -m "notes-1" &&
+	git notes append --separator="" -m "notes-2" &&
+	git notes show >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'append: specify separator with line break' '
+	test_when_finished git notes remove HEAD &&
+	cat >expect <<-\EOF &&
+	notes-1
+	-------
+	notes-2
+	EOF
+
+	git notes add -m "notes-1" &&
+	git notes append --separator="-------$LF" -m "notes-2" &&
+	git notes show >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'append: specify separator without line break' '
+	test_when_finished git notes remove HEAD &&
+	cat >expect <<-\EOF &&
+	notes-1
+	-------
+	notes-2
+	EOF
+
+	git notes add -m "notes-1" &&
+	git notes append --separator="-------" -m "notes-2" &&
+	git notes show >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'append: specify separator with multiple messages' '
+	test_when_finished git notes remove HEAD &&
+	cat >expect <<-\EOF &&
+	notes-1
+	-------
+	notes-2
+	-------
+	notes-3
+	EOF
+
+	git notes add -m "notes-1" &&
+	git notes append --separator="-------" -m "notes-2" -m "notes-3" &&
+	git notes show >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'append note with combination of -m and -F and --separator' '
+	test_when_finished git notes remove HEAD &&
+	cat >expect-combine_m_and_F <<-\EOF &&
+	m-notes-1
+	-------
+	f-notes-1
+	-------
+	m-notes-2
+	-------
+	f-notes-2
+	-------
+	m-notes-3
+	EOF
+
+	echo "f-notes-1" >note_a &&
+	echo "f-notes-2" >note_b &&
+	git notes append -m "m-notes-1" -F note_a -m "m-notes-2" -F note_b -m "m-notes-3" --separator "-------" &&
+	git notes show >actual &&
+	test_cmp expect-combine_m_and_F actual
+'
+
 test_expect_success 'append to existing note with "git notes append"' '
 	cat >expect <<-EOF &&
 		Initial set of notes
@@ -818,6 +917,33 @@ test_expect_success 'create note from blob with "git notes add -C" reuses blob i
 	test_cmp blob actual
 '
 
+test_expect_success 'create note from blob with "-C", also specify "-m", "-F" and "--separator"' '
+	# 8th will be reuseed in following tests, so rollback when the test is done
+	test_when_finished "git notes remove && git notes add -C $(cat blob)" &&
+	commit=$(git rev-parse HEAD) &&
+	cat >expect <<-EOF &&
+		commit $commit
+		Author: A U Thor <author@example.com>
+		Date:   Thu Apr 7 15:20:13 2005 -0700
+
+		${indent}8th
+
+		Notes:
+		${indent}This is a blob object
+		${indent}-------
+		${indent}This is created by -m
+		${indent}-------
+		${indent}This is created by -F
+	EOF
+
+	git notes remove &&
+	echo "This is a blob object" | git hash-object -w --stdin >blob &&
+	echo "This is created by -F" >note_a &&
+	git notes add -C $(cat blob) -m "This is created by -m" -F note_a --separator="-------" &&
+	git log -1 >actual &&
+	test_cmp expect actual
+'
+
 test_expect_success 'create note from other note with "git notes add -c"' '
 	test_commit 9th &&
 	commit=$(git rev-parse HEAD) &&

From 2e70e3612e4bd133123812f1d46784967dda1461 Mon Sep 17 00:00:00 2001
From: Teng Long <dyroneteng@gmail.com>
Date: Wed, 19 Apr 2023 17:34:35 +0800
Subject: [PATCH 5/6] notes.c: append separator instead of insert by pos

Rename "insert_separator" to "append_separator" and also remove the
"postion" argument, this serves two purpose:

The first is that when specifying more than one "-m" ( like "-F", etc)
to "git notes add" or "git notes append", the order of them matters,
which means we need to append the each separator and message in turn,
so we don't have to make the caller specify the position, the "append"
operation is enough and clear.

The second is that when we execute the "git notes append" subcommand,
we need to combine the "prev_note" and "current_note" to get the
final result. Before, we inserted a newline character at the beginning
of "current_note". Now, we will append a newline to the end of
"prev_note" instead, this will give the consisitent results.

Signed-off-by: Teng Long <dyroneteng@gmail.com>
---
 builtin/notes.c | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/builtin/notes.c b/builtin/notes.c
index ea41ab3e4c8e75..6fdf26101d2a3f 100644
--- a/builtin/notes.c
+++ b/builtin/notes.c
@@ -229,12 +229,12 @@ static void write_note_data(struct note_data *d, struct object_id *oid)
 	}
 }
 
-static void insert_separator(struct strbuf *message, size_t pos)
+static void append_separator(struct strbuf *message)
 {
 	if (separator[strlen(separator) - 1] == '\n')
 		strbuf_addstr(message, separator);
 	else
-		strbuf_insertf(message, pos, "%s%s", separator, "\n");
+		strbuf_addf(message, "%s%s", separator, "\n");
 }
 
 static void concat_messages(struct note_data *d)
@@ -244,7 +244,7 @@ static void concat_messages(struct note_data *d)
 
 	for (i = 0; i < d->msg_nr ; i++) {
 		if (d->buf.len)
-			insert_separator(&d->buf, d->buf.len);
+			append_separator(&d->buf);
 		strbuf_add(&msg, d->messages[i]->buf.buf, d->messages[i]->buf.len);
 		strbuf_addbuf(&d->buf, &msg);
 		if (d->messages[i]->stripspace)
@@ -679,14 +679,17 @@ static int append_edit(int argc, const char **argv, const char *prefix)
 		/* Append buf to previous note contents */
 		unsigned long size;
 		enum object_type type;
-		char *prev_buf = repo_read_object_file(the_repository, note,
-						       &type, &size);
+		struct strbuf buf = STRBUF_INIT;
+		char *prev_buf = repo_read_object_file(the_repository, note, &type, &size);
 
-		if (d.buf.len && prev_buf && size)
-			insert_separator(&d.buf, 0);
 		if (prev_buf && size)
-			strbuf_insert(&d.buf, 0, prev_buf, size);
+			strbuf_add(&buf, prev_buf, size);
+		if (d.buf.len && prev_buf && size)
+			append_separator(&buf);
+		strbuf_insert(&d.buf, 0, buf.buf, buf.len);
+
 		free(prev_buf);
+		strbuf_release(&buf);
 	}
 
 	if (d.buf.len || allow_empty) {

From 15af3b0742671e08e58eebbc842a96b1aaca1f1b Mon Sep 17 00:00:00 2001
From: Teng Long <dyroneteng@gmail.com>
Date: Tue, 25 Apr 2023 16:38:35 +0800
Subject: [PATCH 6/6] notes.c: introduce "--[no-]stripspace" option

This commit introduces a new option "--[no-]stripspace" to git notes
append, git notes edit, and git notes add. This option allows users to
control whether the note message need to stripped out.

For the consideration of backward compatibility, let's look at the
behavior about "stripspace" in "git notes" command:

1. "Edit Message" case: using the default editor to edit the note
message.

    In "edit" case, the edited message will always be stripped out, the
    implementation which can be found in the "prepare_note_data()". In
    addition, the "-c" option supports to reuse an existing blob as a
    note message, then open the editor to make a further edition on it,
    the edited message will be stripped.

    This commit doesn't change the default behavior of "edit" case by
    using an enum "notes_stripspace", only when "--no-stripspace" option
    is specified, the note message will not be stripped out. If you do
    not specify the option or you specify "--stripspace", clearly, the
    note message will be stripped out.

2. "Assign Message" case: using the "-m"/"-F"/"-C" option to specify the
note message.

    In "assign" case, when specify message by "-m" or "-F", the message
    will be stripped out by default, but when specify message by "-C",
    the message will be copied verbatim, in other word, the message will
    not be stripped out. One more thing need to note is "the order of
    the options matter", that is, if you specify "-C" before "-m" or
    "-F", the reused message by "-C" will be stripped out together,
    because everytime concat "-m" or "-F" message, the concated message
    will be stripped together. Oppositely, if you specify "-m" or "-F"
    before "-C", the reused message by "-C" will not be stripped out.

    This commit doesn't change the default behavior of "assign" case by
    extending the "stripspace" field in "struct note_msg", so we can
    distinguish the different behavior of "-m"/"-F" and "-C" options
    when we need to parse and concat the message.

Signed-off-by: Teng Long <dyroneteng@gmail.com>
---
 Documentation/git-notes.txt |  25 ++-
 builtin/notes.c             |  30 +++-
 t/t3321-notes-stripspace.sh | 296 +++++++++++++++++++++++++++++++++++-
 3 files changed, 332 insertions(+), 19 deletions(-)

diff --git a/Documentation/git-notes.txt b/Documentation/git-notes.txt
index 59980b21a8bb38..5f3a9479a977c1 100644
--- a/Documentation/git-notes.txt
+++ b/Documentation/git-notes.txt
@@ -9,10 +9,10 @@ SYNOPSIS
 --------
 [verse]
 'git notes' [list [<object>]]
-'git notes' add [-f] [--allow-empty] [--separator=<paragraph-break>] [-F <file> | -m <msg> | (-c | -C) <object>] [<object>]
+'git notes' add [-f] [--allow-empty] [--separator=<paragraph-break>] [--[no-]stripspace] [-F <file> | -m <msg> | (-c | -C) <object>] [<object>]
 'git notes' copy [-f] ( --stdin | <from-object> [<to-object>] )
-'git notes' append [--allow-empty] [--separator=<paragraph-break>] [-F <file> | -m <msg> | (-c | -C) <object>] [<object>]
-'git notes' edit [--allow-empty] [<object>]
+'git notes' append [--allow-empty] [--separator=<paragraph-break>] [--[no-]stripspace] [-F <file> | -m <msg> | (-c | -C) <object>] [<object>]
+'git notes' edit [--allow-empty] [<object>] [--[no-]stripspace]
 'git notes' show [<object>]
 'git notes' merge [-v | -q] [-s <strategy> ] <notes-ref>
 'git notes' merge --commit [-v | -q]
@@ -141,20 +141,26 @@ OPTIONS
 	If multiple `-m` options are given, their values
 	are concatenated as separate paragraphs.
 	Lines starting with `#` and empty lines other than a
-	single line between paragraphs will be stripped out.
+	single line between paragraphs will be stripped out,
+	if you wish to keep them verbatim, use `--no-stripspace`.
 
 -F <file>::
 --file=<file>::
 	Take the note message from the given file.  Use '-' to
 	read the note message from the standard input.
 	Lines starting with `#` and empty lines other than a
-	single line between paragraphs will be stripped out.
+	single line between paragraphs will be stripped out,
+	if you wish to keep them verbatim, use with
+	`--no-stripspace` option.
 
 -C <object>::
 --reuse-message=<object>::
 	Take the given blob object (for example, another note) as the
 	note message. (Use `git notes copy <object>` instead to
-	copy notes between objects.)
+	copy notes between objects.).  By default, message will be
+	copied verbatim, but if you wish to strip out the lines
+	starting with `#` and empty lines other than a single line
+	between paragraphs, use with`--stripspace` option.
 
 -c <object>::
 --reedit-message=<object>::
@@ -170,6 +176,13 @@ OPTIONS
 	(a newline is added at the end as needed).  Defaults to a
 	blank line.
 
+--[no-]stripspace::
+	Strip leading and trailing whitespace from the note message.
+	Also strip out empty lines other than a single line between
+	paragraphs. For lines starting with `#` will be stripped out
+	in non-editor cases like "-m", "-F" and "-C", but not in
+	editor case like "git notes edit", "-c", etc.
+
 --ref <ref>::
 	Manipulate the notes tree in <ref>.  This overrides
 	`GIT_NOTES_REF` and the "core.notesRef" configuration.  The ref
diff --git a/builtin/notes.c b/builtin/notes.c
index 6fdf26101d2a3f..8905298b2197de 100644
--- a/builtin/notes.c
+++ b/builtin/notes.c
@@ -101,14 +101,21 @@ static const char * const git_notes_get_ref_usage[] = {
 static const char note_template[] =
 	N_("Write/edit the notes for the following object:");
 
+enum notes_stripspace {
+	UNSPECIFIED = -1,
+	NO_STRIPSPACE = 0,
+	STRIPSPACE = 1,
+};
+
 struct note_msg {
-	int stripspace;
+	enum notes_stripspace stripspace;
 	struct strbuf buf;
 };
 
 struct note_data {
 	int given;
 	int use_editor;
+	int stripspace;
 	char *edit_path;
 	struct strbuf buf;
 	struct note_msg **messages;
@@ -213,7 +220,8 @@ static void prepare_note_data(const struct object_id *object, struct note_data *
 		if (launch_editor(d->edit_path, &d->buf, NULL)) {
 			die(_("please supply the note contents using either -m or -F option"));
 		}
-		strbuf_stripspace(&d->buf, 1);
+		if (d->stripspace)
+			strbuf_stripspace(&d->buf, 1);
 	}
 }
 
@@ -247,7 +255,9 @@ static void concat_messages(struct note_data *d)
 			append_separator(&d->buf);
 		strbuf_add(&msg, d->messages[i]->buf.buf, d->messages[i]->buf.len);
 		strbuf_addbuf(&d->buf, &msg);
-		if (d->messages[i]->stripspace)
+		if ((d->stripspace == UNSPECIFIED &&
+		     d->messages[i]->stripspace == STRIPSPACE) ||
+		    d->stripspace == STRIPSPACE)
 			strbuf_stripspace(&d->buf, 0);
 		strbuf_reset(&msg);
 	}
@@ -265,7 +275,7 @@ static int parse_msg_arg(const struct option *opt, const char *arg, int unset)
 	strbuf_addstr(&msg->buf, arg);
 	ALLOC_GROW_BY(d->messages, d->msg_nr, 1, d->msg_alloc);
 	d->messages[d->msg_nr - 1] = msg;
-	msg->stripspace = 1;
+	msg->stripspace = STRIPSPACE;
 	return 0;
 }
 
@@ -285,7 +295,7 @@ static int parse_file_arg(const struct option *opt, const char *arg, int unset)
 
 	ALLOC_GROW_BY(d->messages, d->msg_nr, 1, d->msg_alloc);
 	d->messages[d->msg_nr - 1] = msg;
-	msg->stripspace = 1;
+	msg->stripspace = STRIPSPACE;
 	return 0;
 }
 
@@ -318,7 +328,7 @@ static int parse_reuse_arg(const struct option *opt, const char *arg, int unset)
 	msg->buf.len = len;
 	ALLOC_GROW_BY(d->messages, d->msg_nr, 1, d->msg_alloc);
 	d->messages[d->msg_nr - 1] = msg;
-	msg->stripspace = 0;
+	msg->stripspace = NO_STRIPSPACE;
 	return 0;
 }
 
@@ -452,7 +462,7 @@ static int add(int argc, const char **argv, const char *prefix)
 	struct notes_tree *t;
 	struct object_id object, new_note;
 	const struct object_id *note;
-	struct note_data d = { .buf = STRBUF_INIT };
+	struct note_data d = { .buf = STRBUF_INIT, .stripspace = UNSPECIFIED };
 
 	struct option options[] = {
 		OPT_CALLBACK_F('m', "message", &d, N_("message"),
@@ -472,6 +482,8 @@ static int add(int argc, const char **argv, const char *prefix)
 		OPT__FORCE(&force, N_("replace existing notes"), PARSE_OPT_NOCOMPLETE),
 		OPT_STRING(0, "separator", &separator, N_("separator"),
 			N_("insert <paragraph-break> between paragraphs")),
+		OPT_BOOL(0, "stripspace", &d.stripspace,
+			N_("remove unnecessary whitespace")),
 		OPT_END()
 	};
 
@@ -625,7 +637,7 @@ static int append_edit(int argc, const char **argv, const char *prefix)
 	const struct object_id *note;
 	char *logmsg;
 	const char * const *usage;
-	struct note_data d = { .buf = STRBUF_INIT };
+	struct note_data d = { .buf = STRBUF_INIT, .stripspace = UNSPECIFIED };
 	struct option options[] = {
 		OPT_CALLBACK_F('m', "message", &d, N_("message"),
 			N_("note contents as a string"), PARSE_OPT_NONEG,
@@ -643,6 +655,8 @@ static int append_edit(int argc, const char **argv, const char *prefix)
 			N_("allow storing empty note")),
 		OPT_STRING(0, "separator", &separator, N_("separator"),
 			N_("insert <paragraph-break> between paragraphs")),
+		OPT_BOOL(0, "stripspace", &d.stripspace,
+			N_("remove unnecessary whitespace")),
 		OPT_END()
 	};
 	int edit = !strcmp(argv[0], "edit");
diff --git a/t/t3321-notes-stripspace.sh b/t/t3321-notes-stripspace.sh
index 89977873461111..028d825e8fb2d1 100755
--- a/t/t3321-notes-stripspace.sh
+++ b/t/t3321-notes-stripspace.sh
@@ -32,7 +32,7 @@ test_expect_success 'add note by editor' '
 	test_cmp expect actual
 '
 
-test_expect_success 'add note by specifying single "-m"' '
+test_expect_success 'add note by specifying single "-m", "--stripspace" is the default behavior' '
 	test_when_finished "git notes remove" &&
 	cat >expect <<-EOF &&
 	first-line
@@ -42,10 +42,26 @@ test_expect_success 'add note by specifying single "-m"' '
 
 	git notes add -m "${LF}first-line${MULTI_LF}second-line${LF}" &&
 	git notes show >actual &&
+	test_cmp expect actual &&
+	git notes remove &&
+	git notes add --stripspace -m "${LF}first-line${MULTI_LF}second-line${LF}" &&
+	git notes show >actual &&
 	test_cmp expect actual
 '
 
-test_expect_success 'add note by specifying multiple "-m"' '
+test_expect_success 'add note by specifying single "-m" and "--no-stripspace" ' '
+	test_when_finished "git notes remove" &&
+	cat >expect <<-EOF &&
+	${LF}first-line${MULTI_LF}second-line
+	EOF
+
+	git notes add --no-stripspace \
+		      -m "${LF}first-line${MULTI_LF}second-line${LF}" &&
+	git notes show >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'add note by specifying multiple "-m", "--stripspace" is the default behavior' '
 	test_when_finished "git notes remove" &&
 	cat >expect <<-EOF &&
 	first-line
@@ -59,9 +75,156 @@ test_expect_success 'add note by specifying multiple "-m"' '
 		      -m "second-line" \
 		      -m "${LF}" &&
 	git notes show >actual &&
+	test_cmp expect actual &&
+	git notes remove &&
+	git notes add --stripspace -m "${LF}" \
+		      -m "first-line" \
+		      -m "${MULTI_LF}" \
+		      -m "second-line" \
+		      -m "${LF}" &&
+	git notes show >actual &&
 	test_cmp expect actual
 '
 
+test_expect_success 'add notes by specifying multiple "-m" and "--no-stripspace"' '
+	test_when_finished "git notes remove" &&
+	cat >expect <<-EOF &&
+	${LF}
+	first-line
+	${MULTI_LF}
+	second-line${LF}
+	EOF
+
+	git notes add --no-stripspace \
+		      -m "${LF}" \
+		      -m "first-line" \
+		      -m "${MULTI_LF}" \
+		      -m "second-line" \
+		      -m "${LF}" &&
+	git notes show >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'add note by specifying single "-F", "--stripspace" is the default behavior' '
+	test_when_finished "git notes remove" &&
+	cat >expect <<-EOF &&
+	first-line
+
+	second-line
+	EOF
+
+	cat >note-file <<-EOF &&
+	${LF}
+	first-line
+	${MULTI_LF}
+	second-line
+	${LF}
+	EOF
+
+	git notes add -F note-file &&
+	git notes show >actual &&
+	test_cmp expect actual &&
+	git notes remove &&
+	git notes add --stripspace -F note-file &&
+	git notes show >actual
+'
+
+test_expect_success 'add note by specifying single "-F" and "--no-stripspace"' '
+	test_when_finished "git notes remove" &&
+	cat >expect <<-EOF &&
+	${LF}
+	first-line
+	${MULTI_LF}
+	second-line
+	${LF}
+	EOF
+
+	cat >note-file <<-EOF &&
+	${LF}
+	first-line
+	${MULTI_LF}
+	second-line
+	${LF}
+	EOF
+
+	git notes add --no-stripspace -F note-file &&
+	git notes show >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'add note by specifying multiple "-F", "--stripspace" is the default behavior' '
+	test_when_finished "git notes remove" &&
+	cat >expect <<-EOF &&
+	file-1-first-line
+
+	file-1-second-line
+
+	file-2-first-line
+
+	file-2-second-line
+	EOF
+
+	cat >note-file-1 <<-EOF &&
+	${LF}
+	file-1-first-line
+	${MULTI_LF}
+	file-1-second-line
+	${LF}
+	EOF
+
+	cat >note-file-2 <<-EOF &&
+	${LF}
+	file-2-first-line
+	${MULTI_LF}
+	file-2-second-line
+	${LF}
+	EOF
+
+	git notes add -F note-file-1 -F note-file-2 &&
+	git notes show >actual &&
+	test_cmp expect actual &&
+	git notes remove &&
+	git notes add --stripspace -F note-file-1 -F note-file-2 &&
+	git notes show >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'add note by specifying multiple "-F" with "--no-stripspace"' '
+	test_when_finished "git notes remove" &&
+	cat >expect <<-EOF &&
+	${LF}
+	file-1-first-line
+	${MULTI_LF}
+	file-1-second-line
+	${LF}
+
+	${LF}
+	file-2-first-line
+	${MULTI_LF}
+	file-2-second-line
+	${LF}
+	EOF
+
+	cat >note-file-1 <<-EOF &&
+	${LF}
+	file-1-first-line
+	${MULTI_LF}
+	file-1-second-line
+	${LF}
+	EOF
+
+	cat >note-file-2 <<-EOF &&
+	${LF}
+	file-2-first-line
+	${MULTI_LF}
+	file-2-second-line
+	${LF}
+	EOF
+
+	git notes add --no-stripspace -F note-file-1 -F note-file-2 &&
+	git notes show >actual &&
+	test_cmp expect actual
+'
 
 test_expect_success 'append note by editor' '
 	test_when_finished "git notes remove" &&
@@ -221,6 +384,45 @@ test_expect_success 'append notes by specifying multiple "-F"' '
 	test_cmp expect actual
 '
 
+test_expect_success 'append note by specifying multiple "-F" with "--no-stripspace"' '
+	test_when_finished "git notes remove" &&
+	cat >expect <<-EOF &&
+	initial-line
+	${LF}${LF}
+	file-1-first-line
+	${MULTI_LF}
+	file-1-second-line
+	${LF}
+
+	${LF}
+	file-2-first-line
+	${MULTI_LF}
+	file-2-second-line
+	${LF}
+	EOF
+
+	cat >note-file-1 <<-EOF &&
+	${LF}
+	file-1-first-line
+	${MULTI_LF}
+	file-1-second-line
+	${LF}
+	EOF
+
+	cat >note-file-2 <<-EOF &&
+	${LF}
+	file-2-first-line
+	${MULTI_LF}
+	file-2-second-line
+	${LF}
+	EOF
+
+	git notes add -m "initial-line" &&
+	git notes append --no-stripspace -F note-file-1 -F note-file-2 &&
+	git notes show >actual &&
+	test_cmp expect actual
+'
+
 test_expect_success 'add notes with empty messages' '
 	rev=$(git rev-parse HEAD) &&
 	git notes add -m "${LF}" \
@@ -229,7 +431,7 @@ test_expect_success 'add notes with empty messages' '
 	test_i18ngrep "Removing note for object" actual
 '
 
-test_expect_success 'add note by specifying "-C" , do not stripspace is the default behavior' '
+test_expect_success 'add note by specifying "-C", "--no-stripspace" is the default behavior' '
 	test_when_finished "git notes remove" &&
 	cat >expect <<-EOF &&
 	${LF}
@@ -242,10 +444,36 @@ test_expect_success 'add note by specifying "-C" , do not stripspace is the defa
 	cat expect | git hash-object -w --stdin >blob &&
 	git notes add -C $(cat blob) &&
 	git notes show >actual &&
+	test_cmp expect actual &&
+	git notes remove &&
+	git notes add --no-stripspace -C $(cat blob) &&
+	git notes show >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'reuse note by specifying "-C" and "--stripspace"' '
+	test_when_finished "git notes remove" &&
+	cat >data <<-EOF &&
+	${LF}
+	first-line
+	${MULTI_LF}
+	second-line
+	${LF}
+	EOF
+
+	cat >expect <<-EOF &&
+	first-line
+
+	second-line
+	EOF
+
+	cat data | git hash-object -w --stdin >blob &&
+	git notes add --stripspace -C $(cat blob) &&
+	git notes show >actual &&
 	test_cmp expect actual
 '
 
-test_expect_success 'add notes with "-C" and "-m", "-m" will stripspace all together' '
+test_expect_success 'reuse with "-C" and add note with "-m", "-m" will stripspace all together' '
 	test_when_finished "git notes remove" &&
 	cat >data <<-EOF &&
 	${LF}
@@ -269,7 +497,7 @@ test_expect_success 'add notes with "-C" and "-m", "-m" will stripspace all toge
 	test_cmp expect actual
 '
 
-test_expect_success 'add notes with "-m" and "-C", "-C" will not stripspace all together' '
+test_expect_success 'add note with "-m" and reuse note with "-C", "-C" will not stripspace all together' '
 	test_when_finished "git notes remove" &&
 	cat >data <<-EOF &&
 
@@ -288,4 +516,62 @@ test_expect_success 'add notes with "-m" and "-C", "-C" will not stripspace all
 	test_cmp expect actual
 '
 
+test_expect_success 'add note by specifying "-c", "--stripspace" is the default behavior' '
+	test_when_finished "git notes remove" &&
+	cat >expect <<-EOF &&
+	first-line
+
+	second-line
+	EOF
+
+	echo "initial-line" | git hash-object -w --stdin >blob &&
+	MSG="${LF}first-line${MULTI_LF}second-line${LF}" git notes add -c $(cat blob) &&
+	git notes show >actual &&
+	test_cmp expect actual &&
+	git notes remove &&
+	MSG="${LF}first-line${MULTI_LF}second-line${LF}" git notes add --stripspace -c $(cat blob) &&
+	git notes show >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'add note by specifying "-c" with "--no-stripspace"' '
+	test_when_finished "git notes remove" &&
+	cat >expect <<-EOF &&
+	${LF}first-line${MULTI_LF}second-line${LF}
+	EOF
+
+	echo "initial-line" | git hash-object -w --stdin >blob &&
+	MSG="${LF}first-line${MULTI_LF}second-line${LF}" git notes add --no-stripspace -c $(cat blob) &&
+	git notes show >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'edit note by specifying "-c", "--stripspace" is the default behavior' '
+	test_when_finished "git notes remove" &&
+	cat >expect <<-EOF &&
+	first-line
+
+	second-line
+	EOF
+
+	MSG="${LF}first-line${MULTI_LF}second-line${LF}" git notes edit &&
+	git notes show >actual &&
+	test_cmp expect actual &&
+	git notes remove &&
+	MSG="${LF}first-line${MULTI_LF}second-line${LF}" git notes edit --stripspace &&
+	git notes show >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'edit note by specifying "-c" with "--no-stripspace"' '
+	test_when_finished "git notes remove" &&
+	cat >expect <<-EOF &&
+	${LF}first-line${MULTI_LF}second-line${LF}
+	EOF
+
+	MSG="${LF}first-line${MULTI_LF}second-line${LF}" git notes add --no-stripspace &&
+	git notes show >actual &&
+	test_cmp expect actual
+'
+
 test_done