diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/diff.tcl | 53 |
1 files changed, 49 insertions, 4 deletions
diff --git a/lib/diff.tcl b/lib/diff.tcl index 0659029632..96288fcc33 100644 --- a/lib/diff.tcl +++ b/lib/diff.tcl @@ -569,7 +569,7 @@ proc read_diff {fd conflict_size cont_info} { proc apply_or_revert_hunk {x y revert} { global current_diff_path current_diff_header current_diff_side - global ui_diff ui_index file_states + global ui_diff ui_index file_states last_revert last_revert_enc if {$current_diff_path eq {} || $current_diff_header eq {}} return if {![lock_index apply_hunk]} return @@ -610,18 +610,25 @@ proc apply_or_revert_hunk {x y revert} { set e_lno end } + set wholepatch "$current_diff_header[$ui_diff get $s_lno $e_lno]" + if {[catch { set enc [get_path_encoding $current_diff_path] set p [eval git_write $apply_cmd] fconfigure $p -translation binary -encoding $enc - puts -nonewline $p $current_diff_header - puts -nonewline $p [$ui_diff get $s_lno $e_lno] + puts -nonewline $p $wholepatch close $p} err]} { error_popup "$failed_msg\n\n$err" unlock_index return } + if {$revert} { + # Save a copy of this patch for undoing reverts. + set last_revert $wholepatch + set last_revert_enc $enc + } + $ui_diff conf -state normal $ui_diff delete $s_lno $e_lno $ui_diff conf -state disabled @@ -653,7 +660,7 @@ proc apply_or_revert_hunk {x y revert} { proc apply_or_revert_range_or_line {x y revert} { global current_diff_path current_diff_header current_diff_side - global ui_diff ui_index file_states + global ui_diff ui_index file_states last_revert set selected [$ui_diff tag nextrange sel 0.0] @@ -852,5 +859,43 @@ proc apply_or_revert_range_or_line {x y revert} { return } + if {$revert} { + # Save a copy of this patch for undoing reverts. + set last_revert $current_diff_header$wholepatch + set last_revert_enc $enc + } + + unlock_index +} + +# Undo the last line/hunk reverted. When hunks and lines are reverted, a copy +# of the diff applied is saved. Re-apply that diff to undo the revert. +# +# Right now, we only use a single variable to hold the copy, and not a +# stack/deque for simplicity, so multiple undos are not possible. Maybe this +# can be added if the need for something like this is felt in the future. +proc undo_last_revert {} { + global last_revert current_diff_path current_diff_header + global last_revert_enc + + if {$last_revert eq {}} return + if {![lock_index apply_hunk]} return + + set apply_cmd {apply --whitespace=nowarn} + set failed_msg [mc "Failed to undo last revert."] + + if {[catch { + set enc $last_revert_enc + set p [eval git_write $apply_cmd] + fconfigure $p -translation binary -encoding $enc + puts -nonewline $p $last_revert + close $p} err]} { + error_popup "$failed_msg\n\n$err" + unlock_index + return + } + + set last_revert {} + unlock_index } |