rev-list: handle %x00 NUL in user format
The code paths for showing commits in "git log" and "git
rev-list --graph" correctly handle embedded NULs by looking
only at the resulting strbuf's length, and never treating it
as a C string. The code path for regular rev-list, however,
used printf("%s"), which resulted in truncated output. This
patch uses fwrite instead, like the --graph code path.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/builtin/rev-list.c b/builtin/rev-list.c
index efe9360..3b2dca0 100644
--- a/builtin/rev-list.c
+++ b/builtin/rev-list.c
@@ -147,8 +147,10 @@
}
} else {
if (revs->commit_format != CMIT_FMT_USERFORMAT ||
- buf.len)
- printf("%s%c", buf.buf, info->hdr_termination);
+ buf.len) {
+ fwrite(buf.buf, 1, buf.len, stdout);
+ putchar(info->hdr_termination);
+ }
}
strbuf_release(&buf);
} else {
diff --git a/t/t4012-diff-binary.sh b/t/t4012-diff-binary.sh
index bc46563..05ec062 100755
--- a/t/t4012-diff-binary.sh
+++ b/t/t4012-diff-binary.sh
@@ -77,10 +77,6 @@
tree1=`git write-tree` &&
test "$tree1" = "$tree0"'
-nul_to_q() {
- perl -pe 'y/\000/Q/'
-}
-
test_expect_success 'diff --no-index with binary creation' '
echo Q | q_to_nul >binary &&
(: hide error code from diff, which just indicates differences
diff --git a/t/t6006-rev-list-format.sh b/t/t6006-rev-list-format.sh
index cccacd4..d918cc0 100755
--- a/t/t6006-rev-list-format.sh
+++ b/t/t6006-rev-list-format.sh
@@ -162,6 +162,14 @@
commit 86c75cfd708a0e5868dc876ed5b8bb66c80b4873
EOF
+test_expect_success '%x00 shows NUL' '
+ echo >expect commit f58db70b055c5718631e5c61528b28b12090cdea &&
+ echo >>expect fooQbar &&
+ git rev-list -1 --format=foo%x00bar HEAD >actual.nul &&
+ nul_to_q <actual.nul >actual &&
+ test_cmp expect actual
+'
+
test_expect_success '%ad respects --date=' '
echo 2005-04-07 >expect.ad-short &&
git log -1 --date=short --pretty=tformat:%ad >output.ad-short master &&
diff --git a/t/test-lib.sh b/t/test-lib.sh
index 830e5e7..25f8bf9 100644
--- a/t/test-lib.sh
+++ b/t/test-lib.sh
@@ -248,6 +248,10 @@
-e 's/.\[m/<RESET>/g'
}
+nul_to_q () {
+ perl -pe 'y/\000/Q/'
+}
+
q_to_nul () {
perl -pe 'y/Q/\000/'
}
