Merge branch 'py/revert-hunks-lines'

git-gui learned to revert selected lines and hunks, just like it can
stage selected lines and hunks. To provide a safety net for accidental
revert, the most recent revert can be undone.

* py/revert-hunks-lines:
git-gui: allow undoing last revert
git-gui: return early when patch fails to apply
git-gui: allow reverting selected hunk
git-gui: allow reverting selected lines

diff --git a/git-gui.sh b/git-gui.sh
index e03a2d2c28d7170ab18b9751f10ebb624ad67499..ac258d0dcfb64e262cfca2c67e132b9684a96d34 100755 (executable)
--- a/git-gui.sh
+++ b/git-gui.sh
@@ -2497,7 +2497,7 @@ proc force_first_diff {after} {
 
 proc toggle_or_diff {mode w args} {
        global file_states file_lists current_diff_path ui_index ui_workdir
-       global last_clicked selected_paths
+       global last_clicked selected_paths file_lists_last_clicked
 
        if {$mode eq "click"} {
                foreach {x y} $args break
@@ -2529,6 +2529,8 @@ proc toggle_or_diff {mode w args} {
        $ui_index tag remove in_sel 0.0 end
        $ui_workdir tag remove in_sel 0.0 end
 
+       set file_lists_last_clicked($w) $path
+
        # Determine the state of the file
        if {[info exists file_states($path)]} {
                set state [lindex $file_states($path) 0]
@@ -2642,6 +2644,26 @@ proc show_less_context {} {
        }
 }
 
+proc focus_widget {widget} {
+       global file_lists last_clicked selected_paths
+       global file_lists_last_clicked
+
+       if {[llength $file_lists($widget)] > 0} {
+               set path $file_lists_last_clicked($widget)
+               set index [lsearch -sorted -exact $file_lists($widget) $path]
+               if {$index < 0} {
+                       set index 0
+                       set path [lindex $file_lists($widget) $index]
+               }
+
+               focus $widget
+               set last_clicked [list $widget [expr $index + 1]]
+               array unset selected_paths
+               set selected_paths($path) 1
+               show_diff $path $widget
+       }
+}
+
 ######################################################################
 ##
 ## ui construction
@@ -3903,6 +3925,14 @@ foreach i [list $ui_index $ui_workdir] {
 }
 unset i
 
+bind .   <Alt-Key-1> {focus_widget $::ui_workdir}
+bind .   <Alt-Key-2> {focus_widget $::ui_index}
+bind .   <Alt-Key-3> {focus $::ui_diff}
+bind .   <Alt-Key-4> {focus $::ui_comm}
+
+set file_lists_last_clicked($ui_index) {}
+set file_lists_last_clicked($ui_workdir) {}
+
 set file_lists($ui_index) [list]
 set file_lists($ui_workdir) [list]