From 4abf20f00439b857c34bac55176011c5612310da Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=C3=86var=20Arnfj=C3=B6r=C3=B0=20Bjarmason?= Date: Thu, 21 Feb 2019 20:28:48 +0100 Subject: [PATCH 1/2] tests: fix unportable "\?" and "\+" regex syntax MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix widely supported but non-POSIX basic regex syntax introduced in [1] and [2]. On GNU, NetBSD and FreeBSD the following works: $ echo xy >f $ grep 'xy\?' f; echo $? xy 0 The same goes for "\+". The "?" and "+" syntax is not in the BRE syntax, just in ERE, but on some implementations it can be invoked by prefixing the meta-operator with "\", but not on OpenBSD: $ uname -a OpenBSD obsd.my.domain 6.2 GENERIC#132 amd64 $ grep --version grep version 0.9 $ grep 'xy\?' f; echo $? 1 Let's fix this by moving to ERE syntax instead, where "?" and "+" are universally supported: $ grep -E 'xy?' f; echo $? xy 0 1. 2ed5c8e174 ("describe: setup working tree for --dirty", 2019-02-03) 2. c801170b0c ("t6120: test for describe with a bare repository", 2019-02-03) Signed-off-by: Ævar Arnfjörð Bjarmason Signed-off-by: Junio C Hamano --- t/t6120-describe.sh | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/t/t6120-describe.sh b/t/t6120-describe.sh index ee5b03ee18..2b883d8174 100755 --- a/t/t6120-describe.sh +++ b/t/t6120-describe.sh @@ -146,7 +146,7 @@ check_describe A-* HEAD test_expect_success 'describe works from outside repo using --git-dir' ' git clone --bare "$TRASH_DIRECTORY" "$TRASH_DIRECTORY/bare" && git --git-dir "$TRASH_DIRECTORY/bare" describe >out && - grep "^A-[1-9][0-9]\?-g[0-9a-f]\+$" out + grep -E "^A-[1-9][0-9]?-g[0-9a-f]+$" out ' check_describe "A-*[0-9a-f]" --dirty @@ -156,7 +156,7 @@ test_expect_success 'describe --dirty with --work-tree' ' cd "$TEST_DIRECTORY" && git --git-dir "$TRASH_DIRECTORY/.git" --work-tree "$TRASH_DIRECTORY" describe --dirty >"$TRASH_DIRECTORY/out" ) && - grep "^A-[1-9][0-9]\?-g[0-9a-f]\+$" out + grep -E "^A-[1-9][0-9]?-g[0-9a-f]+$" out ' test_expect_success 'set-up dirty work tree' ' @@ -170,7 +170,7 @@ test_expect_success 'describe --dirty with --work-tree (dirty)' ' cd "$TEST_DIRECTORY" && git --git-dir "$TRASH_DIRECTORY/.git" --work-tree "$TRASH_DIRECTORY" describe --dirty >"$TRASH_DIRECTORY/out" ) && - grep "^A-[1-9][0-9]\?-g[0-9a-f]\+-dirty$" out + grep -E "^A-[1-9][0-9]?-g[0-9a-f]+-dirty$" out ' check_describe "A-*[0-9a-f].mod" --dirty=.mod @@ -180,7 +180,7 @@ test_expect_success 'describe --dirty=.mod with --work-tree (dirty)' ' cd "$TEST_DIRECTORY" && git --git-dir "$TRASH_DIRECTORY/.git" --work-tree "$TRASH_DIRECTORY" describe --dirty=.mod >"$TRASH_DIRECTORY/out" ) && - grep "^A-[1-9][0-9]\?-g[0-9a-f]\+.mod$" out + grep -E "^A-[1-9][0-9]?-g[0-9a-f]+.mod$" out ' test_expect_success 'describe --dirty HEAD' ' From b9cc405612f6badded21cb526cdeaa627fecbb37 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=C3=86var=20Arnfj=C3=B6r=C3=B0=20Bjarmason?= Date: Thu, 21 Feb 2019 20:28:49 +0100 Subject: [PATCH 2/2] commit-graph tests: fix unportable "dd" invocation MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Change an unportable invocation of "dd" with count=0, that wanted to truncate the commit-graph file. In POSIX it is unspecified what happens when count=0 is provided[1]. The NetBSD "dd" behavior differs from GNU (and seemingly other BSDs), which has left this test broken since d2b86fbaa1 ("commit-graph: fix buffer read-overflow", 2019-01-15). Copying from /dev/null would seek/truncate to seek=$zero_pos and stop immediately after that (without being able to copy anything), which is the right way to truncate the file. 1. http://pubs.opengroup.org/onlinepubs/9699919799/utilities/dd.html Signed-off-by: Ævar Arnfjörð Bjarmason Helped-by: SZEDER Gábor Signed-off-by: Junio C Hamano --- t/t5318-commit-graph.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/t/t5318-commit-graph.sh b/t/t5318-commit-graph.sh index d4bd1522fe..561796f280 100755 --- a/t/t5318-commit-graph.sh +++ b/t/t5318-commit-graph.sh @@ -382,7 +382,7 @@ corrupt_graph_and_verify() { test_when_finished mv commit-graph-backup $objdir/info/commit-graph && cp $objdir/info/commit-graph commit-graph-backup && printf "$data" | dd of="$objdir/info/commit-graph" bs=1 seek="$pos" conv=notrunc && - dd of="$objdir/info/commit-graph" bs=1 seek="$zero_pos" count=0 && + dd of="$objdir/info/commit-graph" bs=1 seek="$zero_pos" if=/dev/null && generate_zero_bytes $(($orig_size - $zero_pos)) >>"$objdir/info/commit-graph" && test_must_fail git commit-graph verify 2>test_err && grep -v "^+" test_err >err &&