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sequencer: reencode to utf-8 before arrange rebase's todo list 

On musl libc, ISO-2022-JP encoder is too eager to switch back to
1 byte encoding, musl's iconv always switch back after every combining
character. Comparing glibc and musl's output for this command
$ sed q t/t3900/ISO-2022-JP.txt| iconv -f ISO-2022-JP -t utf-8 |
	iconv -f utf-8 -t ISO-2022-JP | xxd

glibc:
00000000: 1b24 4224 4f24 6c24 5224 5b24 551b 2842  .$B$O$l$R$[$U.(B
00000010: 0a                                       .

musl:
00000000: 1b24 4224 4f1b 2842 1b24 4224 6c1b 2842  .$B$O.(B.$B$l.(B
00000010: 1b24 4224 521b 2842 1b24 4224 5b1b 2842  .$B$R.(B.$B$[.(B
00000020: 1b24 4224 551b 2842 0a                   .$B$U.(B.

Although musl iconv's output isn't optimal, it's still correct.

From commit 7d509878b8, ("pretty.c: format string with truncate respects
logOutputEncoding", 2014-05-21), we're encoding the message to utf-8
first, then format it and convert the message to the actual output
encoding on git commit --squash.

Thus, t3900::test_commit_autosquash_flags is failing on musl libc.

Reencode to utf-8 before arranging rebase's todo list.

By doing this, we also remove a breakage noticed by a test added in the
previous commit.

Signed-off-by: Doan Tran Cong Danh <congdanhqx@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Doan Tran Cong Danh 2019-11-08 16:43:46 +07:00 committed by Junio C Hamano
parent e4b95b3b5f
commit 0798d16fe3
2 changed files with 2 additions and 2 deletions
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2
sequencer.c
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@ -5169,7 +5169,7 @@ int todo_list_rearrange_squash(struct todo_list *todo_list)
*commit_todo_item_at(&commit_todo, item->commit) = item;
parse_commit(item->commit);
commit_buffer = get_commit_buffer(item->commit, NULL);
commit_buffer = logmsg_reencode(item->commit, NULL, "UTF-8");
find_commit_subject(commit_buffer, &subject);
format_subject(&buf, subject, " ");
subject = subjects[i] = strbuf_detach(&buf, &subject_len);

2
t/t3900-i18n-commit.sh
View File

@ -209,7 +209,7 @@ test_commit_autosquash_multi_encoding () {
old=$2
new=$3
msg=$4
test_expect_failure "commit --$flag into $old from $new" '
test_expect_success "commit --$flag into $old from $new" '
git checkout -b $flag-$old-$new C0 &&
git config i18n.commitencoding $old &&
echo $old >>F &&