X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=blobdiff_plain;f=git-difftool--helper.sh;h=524f5ea8ab14bb44e5a8e6393e40c0ec5c1ddaa2;hb=a81f1a825bebe1b4d202832b804957d1547d7f60;hp=1b138083d3642af596fe56a74c4f98321e6135fc;hpb=db367136605868f5971d42501a48820ccdcb8b08;p=git.git

diff --git a/git-difftool--helper.sh b/git-difftool--helper.sh
index 1b138083d..524f5ea8a 100755
--- a/git-difftool--helper.sh
+++ b/git-difftool--helper.sh
@@ -3,7 +3,7 @@
 # This script is typically launched by using the 'git difftool'
 # convenience command.
 #
-# Copyright (c) 2009-2010 David Aguilar
+# Copyright (c) 2009, 2010 David Aguilar
 
 TOOL_MODE=diff
 . git-mergetool--lib
@@ -11,7 +11,8 @@ 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)
+	prompt_merge=$(git config --bool mergetool.prompt || echo true)
+	prompt=$(git config --bool difftool.prompt || echo $prompt_merge)
 	if test "$prompt" = true; then
 		test -z "$GIT_DIFFTOOL_NO_PROMPT"
 	else
@@ -19,6 +20,11 @@ should_prompt () {
 	fi
 }
 
+# Indicates that --extcmd=... was specified
+use_ext_cmd () {
+	test -n "$GIT_DIFFTOOL_EXTCMD"
+}
+
 launch_merge_tool () {
 	# Merged is the filename as it appears in the work tree
 	# Local is the contents of a/filename
@@ -33,19 +39,28 @@ launch_merge_tool () {
 	# the user with the real $MERGED name before launching $merge_tool.
 	if should_prompt; then
 		printf "\nViewing: '$MERGED'\n"
-		printf "Hit return to launch '%s': " "$merge_tool"
+		if use_ext_cmd; then
+			printf "Hit return to launch '%s': " \
+				"$GIT_DIFFTOOL_EXTCMD"
+		else
+			printf "Hit return to launch '%s': " "$merge_tool"
+		fi
 		read ans
 	fi
 
-	run_merge_tool "$merge_tool"
+	if use_ext_cmd; then
+		eval $GIT_DIFFTOOL_EXTCMD '"$LOCAL"' '"$REMOTE"'
+	else
+		run_merge_tool "$merge_tool"
+	fi
 }
 
-# Allow GIT_DIFF_TOOL and GIT_MERGE_TOOL to provide default values
-test -n "$GIT_MERGE_TOOL" && merge_tool="$GIT_MERGE_TOOL"
-test -n "$GIT_DIFF_TOOL" && merge_tool="$GIT_DIFF_TOOL"
-
-if test -z "$merge_tool"; then
-	merge_tool="$(get_merge_tool)" || exit
+if ! use_ext_cmd; then
+	if test -n "$GIT_DIFF_TOOL"; then
+		merge_tool="$GIT_DIFF_TOOL"
+	else
+		merge_tool="$(get_merge_tool)" || exit
+	fi
 fi
 
 # Launch the merge tool on each path provided by 'git diff'