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authorElijah Newren <newren@gmail.com>2019-05-14 04:31:00 (GMT)
committerJunio C Hamano <gitster@pobox.com>2019-05-14 07:48:56 (GMT)
commitccbfc96dc480a1395f2068c706f53fe0881c8356 (patch)
tree7c40bffdd5106c9199ffec5e30cdccc6c1b3ed73
parent3edfcc65fdfc708c1c8f1d314885eecf9beb9b67 (diff)
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fast-export: avoid stripping encoding header if we cannot reencode
When fast-export encounters a commit with an 'encoding' header, it tries to reencode in UTF-8 and then drops the encoding header. However, if it fails to reencode in UTF-8 because e.g. one of the characters in the commit message was invalid in the old encoding, then we need to retain the original encoding or otherwise we lose information needed to understand all the other (valid) characters in the original commit message. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r--builtin/fast-export.c7
-rwxr-xr-xt/t9350-fast-export.sh21
-rw-r--r--t/t9350/broken-iso-8859-7-commit-message.txt1
3 files changed, 27 insertions, 2 deletions
diff --git a/builtin/fast-export.c b/builtin/fast-export.c
index 9e28348..7734a9f 100644
--- a/builtin/fast-export.c
+++ b/builtin/fast-export.c
@@ -642,9 +642,12 @@ static void handle_commit(struct commit *commit, struct rev_info *rev,
printf("commit %s\nmark :%"PRIu32"\n", refname, last_idnum);
if (show_original_ids)
printf("original-oid %s\n", oid_to_hex(&commit->object.oid));
- printf("%.*s\n%.*s\ndata %u\n%s",
+ printf("%.*s\n%.*s\n",
(int)(author_end - author), author,
- (int)(committer_end - committer), committer,
+ (int)(committer_end - committer), committer);
+ if (!reencoded && encoding)
+ printf("encoding %s\n", encoding);
+ printf("data %u\n%s",
(unsigned)(reencoded
? strlen(reencoded) : message
? strlen(message) : 0),
diff --git a/t/t9350-fast-export.sh b/t/t9350-fast-export.sh
index 756d6a9..e2ab8ed 100755
--- a/t/t9350-fast-export.sh
+++ b/t/t9350-fast-export.sh
@@ -118,6 +118,27 @@ test_expect_success 'iso-8859-7' '
! grep ^encoding actual)
'
+test_expect_success 'encoding preserved if reencoding fails' '
+
+ test_when_finished "git reset --hard HEAD~1" &&
+ test_config i18n.commitencoding iso-8859-7 &&
+ echo rosten >file &&
+ git commit -s -F "$TEST_DIRECTORY/t9350/broken-iso-8859-7-commit-message.txt" file &&
+ git fast-export wer^..wer >iso-8859-7.fi &&
+ sed "s/wer/i18n-invalid/" iso-8859-7.fi |
+ (cd new &&
+ git fast-import &&
+ git cat-file commit i18n-invalid >actual &&
+ # Make sure the commit still has the encoding header
+ grep ^encoding actual &&
+ # Verify that the commit has the expected size; i.e.
+ # that no bytes were re-encoded to a different encoding.
+ test 252 -eq "$(git cat-file -s i18n-invalid)" &&
+ # ...and check for the original special bytes
+ grep $(printf "\360") actual &&
+ grep $(printf "\377") actual)
+'
+
test_expect_success 'import/export-marks' '
git checkout -b marks master &&
diff --git a/t/t9350/broken-iso-8859-7-commit-message.txt b/t/t9350/broken-iso-8859-7-commit-message.txt
new file mode 100644
index 0000000..d06ad75
--- /dev/null
+++ b/t/t9350/broken-iso-8859-7-commit-message.txt
@@ -0,0 +1 @@
+Pi: ð; Invalid: ÿ \ No newline at end of file