The `test_copy_bytes()` helper function copies up to N bytes from stdin to stdout. This is implemented using Perl, but it can be trivially adapted to instead use dd(1). Refactor the helper accordingly, which allows a bunch of tests to pass when Perl is not available. Signed-off-by: Patrick Steinhardt <ps@xxxxxx> --- t/test-lib-functions.sh | 12 +----------- 1 file changed, 1 insertion(+), 11 deletions(-) diff --git a/t/test-lib-functions.sh b/t/test-lib-functions.sh index 377f08a1428..c4b4d3a4c7f 100644 --- a/t/test-lib-functions.sh +++ b/t/test-lib-functions.sh @@ -1640,17 +1640,7 @@ test_match_signal () { # Read up to "$1" bytes (or to EOF) from stdin and write them to stdout. test_copy_bytes () { - perl -e ' - my $len = $ARGV[1]; - while ($len > 0) { - my $s; - my $nread = sysread(STDIN, $s, $len); - die "cannot read: $!" unless defined($nread); - last unless $nread; - print $s; - $len -= $nread; - } - ' - "$1" + dd ibs=1 count="$1" 2>/dev/null } # run "$@" inside a non-git directory -- 2.49.0.472.ge94155a9ec.dirty