[Proposed Fix v1] t5318: replace dd if=/dev/zero with truncate
From: <hidden>
Date: 2019-02-08 19:28:38
Subsystem:
the rest · Maintainer:
Linus Torvalds
From: "Randall S. Becker" <redacted> The corrupt_graph_and_verify method has been modified to use truncate instead of the /dev/zero pseudo-device, which breaks on platforms where the pseudo-device does not exist. truncate extends files to a specified length filling with nulls, providing a similar function to the use of dd in this case. Signed-off-by: Randall S. Becker <redacted> --- 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 16d10ebce..d627ffe09 100755
--- a/t/t5318-commit-graph.sh
+++ b/t/t5318-commit-graph.sh@@ -383,7 +383,7 @@ corrupt_graph_and_verify() { 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 if=/dev/zero of="$objdir/info/commit-graph" bs=1 seek="$zero_pos" count=$(($orig_size - $zero_pos)) && + truncate -s $orig_size "$objdir/info/commit-graph" && test_must_fail git commit-graph verify 2>test_err && grep -v "^+" test_err >err && test_i18ngrep "$grepstr" err
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2.12.3