Merge branch 'maint-2.5' into maint-2.6

diff --git a/t/test-lib-functions.sh b/t/test-lib-functions.sh
index e8d3c0fdbc76d93ea18f6da1c869fc963e7ca81d..6dffb8bcde83b82fa40b05dd8ee815f4e6a3cdd3 100644 (file)
--- a/t/test-lib-functions.sh
+++ b/t/test-lib-functions.sh
@@ -201,7 +201,14 @@ test_chmod () {
 
 # Unset a configuration variable, but don't fail if it doesn't exist.
 test_unconfig () {
-       git config --unset-all "$@"
+       config_dir=
+       if test "$1" = -C
+       then
+               shift
+               config_dir=$1
+               shift
+       fi
+       git ${config_dir:+-C "$config_dir"} config --unset-all "$@"
        config_status=$?
        case "$config_status" in
        5) # ok, nothing to unset
@@ -213,8 +220,15 @@ test_unconfig () {
 
 # Set git config, automatically unsetting it after the test is over.
 test_config () {
-       test_when_finished "test_unconfig '$1'" &&
-       git config "$@"
+       config_dir=
+       if test "$1" = -C
+       then
+               shift
+               config_dir=$1
+               shift
+       fi
+       test_when_finished "test_unconfig ${config_dir:+-C '$config_dir'} '$1'" &&
+       git ${config_dir:+-C "$config_dir"} config "$@"
 }
 
 test_config_global () {
@@ -722,6 +736,11 @@ test_seq () {
 # what went wrong.
 
 test_when_finished () {
+       # We cannot detect when we are in a subshell in general, but by
+       # doing so on Bash is better than nothing (the test will
+       # silently pass on other shells).
+       test "${BASH_SUBSHELL-0}" = 0 ||
+       error "bug in test script: test_when_finished does nothing in a subshell"
        test_cleanup="{ $*
                } && (exit \"\$eval_ret\"); eval_ret=\$?; $test_cleanup"
 }