[PATCH v2] mergetools: add support for DeltaWalker

[Tim Henigan <tim.henigan@gmail.com>]

Thanks to bc7a96a8965d, it is possible to integrate new external
diff/merge tools by adding a simple shell script at mergetools/$tool.

This commit adds DeltaWalker support.

Signed-off-by: Tim Henigan <tim.henigan@gmail.com>
---

Changes in v2:
  - reworded the commit message
  - moved >/dev/null redirect to after the final fi statement
  - removed the 'status=$?' line at the end of merge_cmd()

Tested with DeltaWalker v1.9.8 on Ubuntu 11.10 and msysgit on Win7.


 mergetools/DeltaWalker |   12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 mergetools/DeltaWalker

diff --git a/mergetools/DeltaWalker b/mergetools/DeltaWalker
new file mode 100644
index 0000000..b9e6618
--- /dev/null
+++ b/mergetools/DeltaWalker
@@ -0,0 +1,12 @@
+diff_cmd () {
+	"$merge_tool_path" "$LOCAL" "$REMOTE" >/dev/null 2>&1
+}
+
+merge_cmd () {
+	if $base_present
+	then
+		"$merge_tool_path" "$LOCAL" "$REMOTE" "$BASE" -merged="$PWD/$MERGED"
+	else
+		"$merge_tool_path" "$LOCAL" "$REMOTE" -merged="$PWD/$MERGED"
+	fi >/dev/null 2>&1
+}
-- 
1.7.9.2.315.g25a78