test-lib.sh: Add a test_set_editor function to safely set $VISUAL
In particular, this function correctly handles cases where the pwd contains
spaces, quotes, and other troublesome metacharacters.
Signed-off-by: Bryan Donlan <bdonlan@fushizen.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/t/test-lib.sh b/t/test-lib.sh
index 7c2a8ba..d7ad13b 100644
--- a/t/test-lib.sh
+++ b/t/test-lib.sh
@@ -160,6 +160,22 @@
trap 'die' exit
+# The semantics of the editor variables are that of invoking
+# sh -c "$EDITOR \"$@\"" files ...
+#
+# If our trash directory contains shell metacharacters, they will be
+# interpreted if we just set $EDITOR directly, so do a little dance with
+# environment variables to work around this.
+#
+# In particular, quoting isn't enough, as the path may contain the same quote
+# that we're using.
+test_set_editor () {
+ FAKE_EDITOR="$1"
+ export FAKE_EDITOR
+ VISUAL='"$FAKE_EDITOR"'
+ export VISUAL
+}
+
test_tick () {
if test -z "${test_tick+set}"
then
