difftool/mergetool: add diffuse as merge and diff tool

diff --git a/contrib/difftool/git-difftool-helper b/contrib/difftool/git-difftool-helper
index e74a2747b64fdedb36ae14cdf2fa4285a2237388..4b0daec5a7d0d90c18967974b87afbcc5fb6dc8b 100755 (executable)
--- a/contrib/difftool/git-difftool-helper
+++ b/contrib/difftool/git-difftool-helper
@@ -1,7 +1,5 @@
 #!/bin/sh
 # git-difftool-helper is a GIT_EXTERNAL_DIFF-compatible diff tool launcher.
-# It supports kdiff3, kompare, tkdiff, xxdiff, meld, opendiff,
-# emerge, ecmerge, vimdiff, gvimdiff, and custom user-configurable tools.
 # This script is typically launched by using the 'git difftool'
 # convenience command.
 #
@@ -55,6 +53,10 @@ launch_merge_tool () {
                "$merge_tool_path" "$LOCAL" "$REMOTE"
                ;;
 
+       diffuse)
+               "$merge_tool_path" "$LOCAL" "$REMOTE" | cat
+               ;;
+
        vimdiff)
                "$merge_tool_path" -d -c "wincmd l" "$LOCAL" "$REMOTE"
                ;;
@@ -164,9 +166,9 @@ if test -z "$merge_tool"; then
        if test -n "$DISPLAY"; then
                # If gnome then prefer meld, otherwise, prefer kdiff3 or kompare
                if test -n "$GNOME_DESKTOP_SESSION_ID" ; then
-                       merge_tool_candidates="meld kdiff3 kompare tkdiff xxdiff gvimdiff"
+                       merge_tool_candidates="meld kdiff3 kompare tkdiff xxdiff gvimdiff diffuse"
                else
-                       merge_tool_candidates="kdiff3 kompare tkdiff xxdiff meld gvimdiff"
+                       merge_tool_candidates="kdiff3 kompare tkdiff xxdiff meld gvimdiff diffuse"
                fi
        fi
        if echo "${VISUAL:-$EDITOR}" | grep 'emacs' > /dev/null 2>&1; then