diff options
Diffstat (limited to 'git-gui/lib/diff.tcl')
| -rw-r--r-- | git-gui/lib/diff.tcl | 96 |
1 files changed, 81 insertions, 15 deletions
diff --git a/git-gui/lib/diff.tcl b/git-gui/lib/diff.tcl index 68c4a6c..958a0fa 100644 --- a/git-gui/lib/diff.tcl +++ b/git-gui/lib/diff.tcl @@ -55,7 +55,7 @@ proc reshow_diff {{after {}}} { proc force_diff_encoding {enc} { global current_diff_path - + if {$current_diff_path ne {}} { force_path_encoding $current_diff_path $enc reshow_diff @@ -567,24 +567,31 @@ proc read_diff {fd conflict_size cont_info} { } } -proc apply_hunk {x y} { +proc apply_or_revert_hunk {x y revert} { global current_diff_path current_diff_header current_diff_side - global ui_diff ui_index file_states + global ui_diff ui_index file_states last_revert last_revert_enc if {$current_diff_path eq {} || $current_diff_header eq {}} return if {![lock_index apply_hunk]} return - set apply_cmd {apply --cached --whitespace=nowarn} + set apply_cmd {apply --whitespace=nowarn} set mi [lindex $file_states($current_diff_path) 0] if {$current_diff_side eq $ui_index} { set failed_msg [mc "Failed to unstage selected hunk."] - lappend apply_cmd --reverse + lappend apply_cmd --reverse --cached if {[string index $mi 0] ne {M}} { unlock_index return } } else { - set failed_msg [mc "Failed to stage selected hunk."] + if {$revert} { + set failed_msg [mc "Failed to revert selected hunk."] + lappend apply_cmd --reverse + } else { + set failed_msg [mc "Failed to stage selected hunk."] + lappend apply_cmd --cached + } + if {[string index $mi 1] ne {M}} { unlock_index return @@ -603,29 +610,40 @@ proc apply_hunk {x y} { set e_lno end } + set wholepatch "$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 $ui_diff conf -state disabled + # Check if the hunk was the last one in the file. if {[$ui_diff get 1.0 end] eq "\n"} { set o _ } else { set o ? } - if {$current_diff_side eq $ui_index} { + # Update the status flags. + if {$revert} { + set mi [string index $mi 0]$o + } elseif {$current_diff_side eq $ui_index} { set mi ${o}M } elseif {[string index $mi 0] eq {_}} { set mi M$o @@ -640,9 +658,9 @@ proc apply_hunk {x y} { } } -proc apply_range_or_line {x y} { +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 [$ui_diff tag nextrange sel 0.0] @@ -660,19 +678,27 @@ proc apply_range_or_line {x y} { if {$current_diff_path eq {} || $current_diff_header eq {}} return if {![lock_index apply_hunk]} return - set apply_cmd {apply --cached --whitespace=nowarn} + set apply_cmd {apply --whitespace=nowarn} set mi [lindex $file_states($current_diff_path) 0] if {$current_diff_side eq $ui_index} { set failed_msg [mc "Failed to unstage selected line."] set to_context {+} - lappend apply_cmd --reverse + lappend apply_cmd --reverse --cached if {[string index $mi 0] ne {M}} { unlock_index return } } else { - set failed_msg [mc "Failed to stage selected line."] - set to_context {-} + if {$revert} { + set failed_msg [mc "Failed to revert selected line."] + set to_context {+} + lappend apply_cmd --reverse + } else { + set failed_msg [mc "Failed to stage selected line."] + set to_context {-} + lappend apply_cmd --cached + } + if {[string index $mi 1] ne {M}} { unlock_index return @@ -830,7 +856,47 @@ proc apply_range_or_line {x y} { 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 $current_diff_header$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 +} |