From 7c147b77d34f072c40b912fafba499727921fa6e Mon Sep 17 00:00:00 2001
From: Felipe Contreras <felipe.contreras@gmail.com>
Date: Sun, 20 Apr 2014 19:24:20 -0500
Subject: [PATCH] mergetools: add vimdiff3 mode

It's similar to the default, except that the other windows are hidden.
This ensures that removed/added colors are still visible on the main
merge window, but the other windows not visible.

Specially useful with merge.conflictstyle=diff3.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Acked-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 mergetools/gvimdiff3 |  1 +
 mergetools/vimdiff   | 14 ++++++++++++--
 mergetools/vimdiff3  |  1 +
 3 files changed, 14 insertions(+), 2 deletions(-)
 create mode 100644 mergetools/gvimdiff3
 create mode 100644 mergetools/vimdiff3

diff --git a/mergetools/gvimdiff3 b/mergetools/gvimdiff3
new file mode 100644
index 0000000000..04a5bb0ea8
--- /dev/null
+++ b/mergetools/gvimdiff3
@@ -0,0 +1 @@
+. "$MERGE_TOOLS_DIR/vimdiff"
diff --git a/mergetools/vimdiff b/mergetools/vimdiff
index 39d032771b..1ddfbfcd78 100644
--- a/mergetools/vimdiff
+++ b/mergetools/vimdiff
@@ -20,16 +20,26 @@ merge_cmd () {
 		"$merge_tool_path" -f -d -c 'wincmd l' \
 			"$LOCAL" "$MERGED" "$REMOTE"
 		;;
+	gvimdiff3|vimdiff3)
+		if $base_present
+		then
+			"$merge_tool_path" -f -d -c 'hid | hid | hid' \
+				"$LOCAL" "$REMOTE" "$BASE" "$MERGED"
+		else
+			"$merge_tool_path" -f -d -c 'hid | hid' \
+				"$LOCAL" "$REMOTE" "$MERGED"
+		fi
+		;;
 	esac
 	check_unchanged
 }
 
 translate_merge_tool_path() {
 	case "$1" in
-	gvimdiff|gvimdiff2)
+	gvimdiff|gvimdiff2|gvimdiff3)
 		echo gvim
 		;;
-	vimdiff|vimdiff2)
+	vimdiff|vimdiff2|vimdiff3)
 		echo vim
 		;;
 	esac
diff --git a/mergetools/vimdiff3 b/mergetools/vimdiff3
new file mode 100644
index 0000000000..04a5bb0ea8
--- /dev/null
+++ b/mergetools/vimdiff3
@@ -0,0 +1 @@
+. "$MERGE_TOOLS_DIR/vimdiff"