}
merge_cmd () {
- touch "$BACKUP"
- "$merge_tool_path" "$LOCAL" "$MERGED" "$REMOTE"
- check_unchanged
+ if test -z "${meld_has_output_option:+set}"
+ then
+ check_meld_for_output_version
+ fi
+
+ if test "$meld_has_output_option" = true
+ then
+ "$merge_tool_path" --output "$MERGED" \
+ "$LOCAL" "$BASE" "$REMOTE"
+ else
+ "$merge_tool_path" "$LOCAL" "$MERGED" "$REMOTE"
+ fi
+}
+
+# Check whether we should use 'meld --output <file>'
+check_meld_for_output_version () {
+ meld_path="$(git config mergetool.meld.path)"
+ meld_path="${meld_path:-meld}"
+
+ if meld_has_output_option=$(git config --bool mergetool.meld.hasOutput)
+ then
+ : use configured value
+ elif "$meld_path" --help 2>&1 |
+ grep -e '--output=' -e '\[OPTION\.\.\.\]' >/dev/null
+ then
+ : old ones mention --output and new ones just say OPTION...
+ meld_has_output_option=true
+ else
+ meld_has_output_option=false
+ fi
}