Dash bug https://bugs.launchpad.net/ubuntu/+source/dash/+bug/139097 lets the shell erroneously perform field splitting on the expansion of a command substitution during declaration of a local variable. It causes the parallel-checkout tests to fail e.g. when running them with /bin/dash on MacOS 11.4, where they error out like this: ./t2080-parallel-checkout-basics.sh: 33: local: 0: bad variable name That's because the output of wc -l contains leading spaces and the returned number of lines is treated as another variable to declare, i.e. as in "local workers= 0". Work around it by enclosing the command substitution in quotes. Helped-by: Matheus Tavares Bernardino <matheus.bernardino@xxxxxx> Helped-by: SZEDER Gábor <szeder.dev@xxxxxxxxx> Helped-by: Ævar Arnfjörð Bjarmason <avarab@xxxxxxxxx> Signed-off-by: René Scharfe <l.s.r@xxxxxx> --- Changes since v2: - Use minimal fix. - New commit message. t/lib-parallel-checkout.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/t/lib-parallel-checkout.sh b/t/lib-parallel-checkout.sh index 21f5759732..83b279a846 100644 --- a/t/lib-parallel-checkout.sh +++ b/t/lib-parallel-checkout.sh @@ -27,7 +27,7 @@ test_checkout_workers () { rm -f "$trace_file" && GIT_TRACE2="$(pwd)/$trace_file" "$@" 2>&8 && - local workers=$(grep "child_start\[..*\] git checkout--worker" "$trace_file" | wc -l) && + local workers="$(grep "child_start\[..*\] git checkout--worker" "$trace_file" | wc -l)" && test $workers -eq $expected_workers && rm "$trace_file" } 8>&2 2>&4 -- 2.31.1
