[PATCH 2/2] Make difftool.prompt fall back to mergetool.prompt

[Sebastian Schuberth <sschuberth@gmail.com>]

The documentation states that "git-difftool falls back to git-mergetool
config variables when the difftool equivalents have not been defined".
Until now, this was not the case for "difftool.prompt".

Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
---
 git-difftool--helper.sh |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/git-difftool--helper.sh b/git-difftool--helper.sh
index 57e8e32..a7185b2 100755
--- a/git-difftool--helper.sh
+++ b/git-difftool--helper.sh
@@ -11,8 +11,9 @@ TOOL_MODE=diff
 
 # difftool.prompt controls the default prompt/no-prompt behavior
 # and is overridden with $GIT_DIFFTOOL*_PROMPT.
-should_prompt () {
-	prompt=$(git config --bool difftool.prompt || echo true)
+should_prompt_diff () {
+	local prompt_merge=$(should_prompt_merge && echo true || echo false)
+	local prompt=$(git config --bool difftool.prompt || echo $prompt_merge)
 	if test "$prompt" = true; then
 		test -z "$GIT_DIFFTOOL_NO_PROMPT"
 	else
@@ -33,7 +34,7 @@ launch_merge_tool () {
 
 	# $LOCAL and $REMOTE are temporary files so prompt
 	# the user with the real $MERGED name before launching $merge_tool.
-	if should_prompt; then
+	if should_prompt_diff; then
 		printf "\nViewing: '$MERGED'\n"
 		printf "Hit return to launch '%s': " "$merge_tool"
 		read ans
-- 
1.6.5.1.1373.g71d1