ref_transaction_commit(): fix atomicity and avoid fd exhaustion

diff --git a/t/t0005-signals.sh b/t/t0005-signals.sh
index aeea50c6339ebd4a0d33ce03b7fad5948e69a8a8..e7f27ebbc1748df28b6e686b5732c8af18cea7c9 100755 (executable)
--- a/t/t0005-signals.sh
+++ b/t/t0005-signals.sh
@@ -10,8 +10,8 @@ one
 EOF
 
 test_expect_success 'sigchain works' '
-       test-sigchain >actual
-       case "$?" in
+       { test-sigchain >actual; ret=$?; } &&
+       case "$ret" in
        143) true ;; # POSIX w/ SIGTERM=15
        271) true ;; # ksh w/ SIGTERM=15
          3) true ;; # Windows
@@ -40,12 +40,12 @@ test_expect_success 'create blob' '
 '
 
 test_expect_success !MINGW 'a constipated git dies with SIGPIPE' '
-       OUT=$( ((large_git; echo $? 1>&3) | :) 3>&1 )
+       OUT=$( ((large_git; echo $? 1>&3) | :) 3>&1 ) &&
        test "$OUT" -eq 141
 '
 
 test_expect_success !MINGW 'a constipated git dies with SIGPIPE even if parent ignores it' '
-       OUT=$( ((trap "" PIPE; large_git; echo $? 1>&3) | :) 3>&1 )
+       OUT=$( ((trap "" PIPE; large_git; echo $? 1>&3) | :) 3>&1 ) &&
        test "$OUT" -eq 141
 '