[PATCH v6 7/9] sequencer: reencode old merge-commit message

From

Doan Tran Cong Danh <congdanhqx@gmail.com>

Date

Nov 11, 2019, 06:03 UTC

Message-ID

<4dfdd4b83ed0cf59ae1a4e888ba1f7e4c7d1f80f.1573452046.git.congdanhqx@gmail.com>

In-Reply-To

<cover.1573452046.git.congdanhqx@gmail.com>

Correct it.

This change also notice a breakage with git-rebase label system.

Signed-off-by: Doan Tran Cong Danh <congdanhqx@gmail.com>
---
 sequencer.c            |   3 ++-
 t/t3434-rebase-i18n.sh |  57 +++++++++++++++++++++++++++++++++++++++++
 t/t3434/eucJP.txt      | Bin 0 -> 68 bytes
 3 files changed, 59 insertions(+), 1 deletion(-)
 create mode 100755 t/t3434-rebase-i18n.sh
 create mode 100644 t/t3434/eucJP.txt

diff --git a/sequencer.c b/sequencer.c
index b5712e59d9..18bc4d515d 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -3372,7 +3372,8 @@ static int do_merge(struct repository *r,
 	}
 
 	if (commit) {
-		const char *message = get_commit_buffer(commit, NULL);
+		const char *encoding = get_commit_output_encoding();
+		const char *message = logmsg_reencode(commit, NULL, encoding);
 		const char *body;
 		int len;
 
diff --git a/t/t3434-rebase-i18n.sh b/t/t3434-rebase-i18n.sh
new file mode 100755
index 0000000000..c6c16373eb
--- /dev/null
+++ b/t/t3434-rebase-i18n.sh
@@ -0,0 +1,57 @@
+#!/bin/sh
+#
+# Copyright (c) 2019 Doan Tran Cong Danh
+#
+
+test_description='rebase with changing encoding
+
+Initial setup:
+
+1 - 2              master
+ \
+  3 - 4            first
+   \
+    5 - 6          second
+'
+
+. ./test-lib.sh
+
+compare_msg () {
+	iconv -f "$2" -t "$3" "$TEST_DIRECTORY/t3434/$1" >expect &&
+	git cat-file commit HEAD >raw &&
+	sed "1,/^$/d" raw >actual &&
+	test_cmp expect actual
+}
+
+test_expect_success setup '
+	test_commit one &&
+	git branch first &&
+	test_commit two &&
+	git switch first &&
+	test_commit three &&
+	git branch second &&
+	test_commit four &&
+	git switch second &&
+	test_commit five &&
+	test_commit six
+'
+
+test_expect_success 'rebase --rebase-merges update encoding eucJP to UTF-8' '
+	git switch -c merge-eucJP-UTF-8 first &&
+	git config i18n.commitencoding eucJP &&
+	git merge -F "$TEST_DIRECTORY/t3434/eucJP.txt" second &&
+	git config i18n.commitencoding UTF-8 &&
+	git rebase --rebase-merges master &&
+	compare_msg eucJP.txt eucJP UTF-8
+'
+
+test_expect_failure 'rebase --rebase-merges update encoding eucJP to ISO-2022-JP' '
+	git switch -c merge-eucJP-ISO-2022-JP first &&
+	git config i18n.commitencoding eucJP &&
+	git merge -F "$TEST_DIRECTORY/t3434/eucJP.txt" second &&
+	git config i18n.commitencoding ISO-2022-JP &&
+	git rebase --rebase-merges master &&
+	compare_msg eucJP.txt eucJP ISO-2022-JP
+'
+
+test_done
diff --git a/t/t3434/eucJP.txt b/t/t3434/eucJP.txt
new file mode 100644
index 0000000000000000000000000000000000000000..546f2aac01b67e39d19de601f5586097b34a8325
GIT binary patch
literal 68
zcmZ2-e#x69mzLaKa+Ql~$@V43mMmHFddayZYZfkovW_oY%ys|3$+JKuZ<btN@@mOl
SAboGi<s}<{?6*s90HpysEiSzP

literal 0
HcmV?d00001

-- 
2.24.0.164.g78daf050de.dirty