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[v2,2/2] t0000: avoid masking git exit value through pipes

Message ID 20210916085523.68581-3-carenas@gmail.com (mailing list archive)
State Accepted
Commit 66c0c44df617446763845a71a8fe0fab4cb848a9
Headers show
Series reroll for cb/plug-leaks-in-alloca-emu-users | expand

Commit Message

Carlo Marcelo Arenas Belón Sept. 16, 2021, 8:55 a.m. UTC
9af0b8dbe2 (t0000-basic: more commit-tree tests., 2006-04-26) adds
tests for commit-tree that mask the return exit from git as described
in a378fee5b07 (Documentation: add shell guidelines, 2018-10-05).

Fix the tests, to avoid pipes by using a temporary file instead.

Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com>
---
v2:
* avoid changing some of the code as suggested by Taylor
* no need for pipes or stdin redirection as suggested by Junio

 t/t0000-basic.sh | 23 ++++++++++++-----------
 1 file changed, 12 insertions(+), 11 deletions(-)y
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Patch

diff --git a/t/t0000-basic.sh b/t/t0000-basic.sh
index cb87768513..5c342de713 100755
--- a/t/t0000-basic.sh
+++ b/t/t0000-basic.sh
@@ -1271,28 +1271,29 @@  P=$(test_oid root)
 
 test_expect_success 'git commit-tree records the correct tree in a commit' '
 	commit0=$(echo NO | git commit-tree $P) &&
-	tree=$(git show --pretty=raw $commit0 |
-		 sed -n -e "s/^tree //p" -e "/^author /q") &&
+	git show --pretty=raw $commit0 >out &&
+	tree=$(sed -n -e "s/^tree //p" -e "/^author /q" out) &&
 	test "z$tree" = "z$P"
 '
 
 test_expect_success 'git commit-tree records the correct parent in a commit' '
 	commit1=$(echo NO | git commit-tree $P -p $commit0) &&
-	parent=$(git show --pretty=raw $commit1 |
-		sed -n -e "s/^parent //p" -e "/^author /q") &&
+	git show --pretty=raw $commit1 >out &&
+	parent=$(sed -n -e "s/^parent //p" -e "/^author /q" out) &&
 	test "z$commit0" = "z$parent"
 '
 
 test_expect_success 'git commit-tree omits duplicated parent in a commit' '
 	commit2=$(echo NO | git commit-tree $P -p $commit0 -p $commit0) &&
-	     parent=$(git show --pretty=raw $commit2 |
-		sed -n -e "s/^parent //p" -e "/^author /q" |
-		sort -u) &&
+	git show --pretty=raw $commit2 >out &&
+	cat >match.sed <<-\EOF &&
+	s/^parent //p
+	/^author /q
+	EOF
+	parent=$(sed -n -f match.sed out | sort -u) &&
 	test "z$commit0" = "z$parent" &&
-	numparent=$(git show --pretty=raw $commit2 |
-		sed -n -e "s/^parent //p" -e "/^author /q" |
-		wc -l) &&
-	test $numparent = 1
+	git show --pretty=raw $commit2 >out &&
+	test_stdout_line_count = 1 sed -n -f match.sed out
 '
 
 test_expect_success 'update-index D/F conflict' '