git-gui: ensure the file in the diff pane is in the list of selected files

It is very confusing that the file which diff is displayed is marked as selected, but it is not in fact selected (that means the array of selected files does not include the file in question). Fixing this also improves the use of $FILENAMES in custom defined tools: one does not have to click the file in the list to make it selected. Signed-off-by: Alex Riesen <alexander.riesen@cetitec.com> Signed-off-by: Pat Thoyts <patthoyts@users.sourceforge.net>

Alex Riesen committed Jun 28, 2016 at 10:59 UTC a0a0c6838744ce51bcbb634f459e173e8be59c22
1 file changed +3
lib/diff.tcl
+3
@@ -127,6 +127,9 @@ proc show_diff {path w {lno {}} {scroll_pos {}} {callback {}}} {
127 } else {
128 start_show_diff $cont_info
129 }
130 +
131 + global current_diff_path selected_paths
132 + set selected_paths($current_diff_path) 1
133 }
134
135 proc show_unmerged_diff {cont_info} {