diff options
Diffstat (limited to 'git-gui/lib/diff.tcl')
| -rw-r--r-- | git-gui/lib/diff.tcl | 129 |
1 files changed, 99 insertions, 30 deletions
diff --git a/git-gui/lib/diff.tcl b/git-gui/lib/diff.tcl index 68c4a6c..871ad48 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 @@ -270,19 +270,6 @@ proc show_other_diff {path w m cont_info} { } } -proc get_conflict_marker_size {path} { - set size 7 - catch { - set fd_rc [eval [list git_read check-attr "conflict-marker-size" -- $path]] - set ret [gets $fd_rc line] - close $fd_rc - if {$ret > 0} { - regexp {.*: conflict-marker-size: (\d+)$} $line line size - } - } - return $size -} - proc start_show_diff {cont_info {add_opts {}}} { global file_states file_lists global is_3way_diff is_submodule_diff diff_active repo_config @@ -298,7 +285,7 @@ proc start_show_diff {cont_info {add_opts {}}} { set is_submodule_diff 0 set diff_active 1 set current_diff_header {} - set conflict_size [get_conflict_marker_size $path] + set conflict_size [gitattr $path conflict-marker-size 7] set cmd [list] if {$w eq $ui_index} { @@ -360,6 +347,10 @@ proc start_show_diff {cont_info {add_opts {}}} { } set ::current_diff_inheader 1 + # Detect pre-image lines of the diff3 conflict-style. They are just + # '++' lines which is not bijective. Thus, we need to maintain a state + # across lines. + set ::conflict_in_pre_image 0 fconfigure $fd \ -blocking 0 \ -encoding [get_path_encoding $path] \ @@ -462,11 +453,23 @@ proc read_diff {fd conflict_size cont_info} { {--} {set tags d_--} {++} { set regexp [string map [list %conflict_size $conflict_size]\ - {^\+\+([<>=]){%conflict_size}(?: |$)}] + {^\+\+([<>=|]){%conflict_size}(?: |$)}] if {[regexp $regexp $line _g op]} { set is_conflict_diff 1 set line [string replace $line 0 1 { }] set tags d$op + + # The ||| conflict-marker marks the start of the pre-image. + # All those lines are also prefixed with '++'. Thus we need + # to maintain this state. + set ::conflict_in_pre_image [expr {$op eq {|}}] + } elseif {$::conflict_in_pre_image} { + # This is a pre-image line. It is the one which both sides + # are based on. As it has also the '++' line start, it is + # normally shown as 'added'. Invert this to '--' to make + # it a 'removed' line. + set line [string replace $line 0 1 {--}] + set tags d_-- } else { set tags d_++ } @@ -567,24 +570,31 @@ proc read_diff {fd conflict_size cont_info} { } } -proc apply_hunk {x y} { +proc apply_or_revert_hunk {x y revert} { global current_diff_path current_diff_header current_diff_side - global ui_diff ui_index file_states + global ui_diff ui_index file_states last_revert last_revert_enc if {$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 $mi 1] ne {M}} { unlock_index return @@ -603,29 +613,40 @@ proc apply_hunk {x y} { set e_lno end } + set wholepatch "$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 +661,9 @@ 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 [$ui_diff tag nextrange sel 0.0] @@ -660,19 +681,27 @@ proc apply_range_or_line {x y} { if {$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 +859,47 @@ 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 } |