diff options
Diffstat (limited to 'git-gui/lib/diff.tcl')
| -rw-r--r-- | git-gui/lib/diff.tcl | 437 |
1 files changed, 299 insertions, 138 deletions
diff --git a/git-gui/lib/diff.tcl b/git-gui/lib/diff.tcl index bbbf15c875..cf8a95ec34 100644 --- a/git-gui/lib/diff.tcl +++ b/git-gui/lib/diff.tcl @@ -51,10 +51,15 @@ proc force_diff_encoding {enc} { proc handle_empty_diff {} { global current_diff_path file_states file_lists + global diff_empty_count set path $current_diff_path set s $file_states($path) - if {[lindex $s 0] ne {_M}} return + if {[lindex $s 0] ne {_M} || [has_textconv $path]} return + + # Prevent infinite rescan loops + incr diff_empty_count + if {$diff_empty_count > 1} return info_popup [mc "No differences detected. @@ -117,22 +122,22 @@ proc show_unmerged_diff {cont_info} { if {$merge_stages(2) eq {}} { set is_conflict_diff 1 lappend current_diff_queue \ - [list [mc "LOCAL: deleted\nREMOTE:\n"] d======= \ + [list [mc "LOCAL: deleted\nREMOTE:\n"] d= \ [list ":1:$current_diff_path" ":3:$current_diff_path"]] } elseif {$merge_stages(3) eq {}} { set is_conflict_diff 1 lappend current_diff_queue \ - [list [mc "REMOTE: deleted\nLOCAL:\n"] d======= \ + [list [mc "REMOTE: deleted\nLOCAL:\n"] d= \ [list ":1:$current_diff_path" ":2:$current_diff_path"]] } elseif {[lindex $merge_stages(1) 0] eq {120000} || [lindex $merge_stages(2) 0] eq {120000} || [lindex $merge_stages(3) 0] eq {120000}} { set is_conflict_diff 1 lappend current_diff_queue \ - [list [mc "LOCAL:\n"] d======= \ + [list [mc "LOCAL:\n"] d= \ [list ":1:$current_diff_path" ":2:$current_diff_path"]] lappend current_diff_queue \ - [list [mc "REMOTE:\n"] d======= \ + [list [mc "REMOTE:\n"] d= \ [list ":1:$current_diff_path" ":3:$current_diff_path"]] } else { start_show_diff $cont_info @@ -203,32 +208,32 @@ proc show_other_diff {path w m cont_info} { $ui_diff insert end [append \ "* " \ [mc "Git Repository (subproject)"] \ - "\n"] d_@ + "\n"] d_info } elseif {![catch {set type [exec file $path]}]} { set n [string length $path] if {[string equal -length $n $path $type]} { set type [string range $type $n end] regsub {^:?\s*} $type {} type } - $ui_diff insert end "* $type\n" d_@ + $ui_diff insert end "* $type\n" d_info } if {[string first "\0" $content] != -1} { $ui_diff insert end \ [mc "* Binary file (not showing content)."] \ - d_@ + d_info } else { if {$sz > $max_sz} { $ui_diff insert end [mc \ "* Untracked file is %d bytes. * Showing only first %d bytes. -" $sz $max_sz] d_@ +" $sz $max_sz] d_info } $ui_diff insert end $content if {$sz > $max_sz} { $ui_diff insert end [mc " * Untracked file clipped here by %s. * To see the entire file, use an external editor. -" [appname]] d_@ +" [appname]] d_info } } $ui_diff conf -state disabled @@ -248,9 +253,22 @@ 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 diff_active repo_config + global is_3way_diff is_submodule_diff diff_active repo_config global ui_diff ui_index ui_workdir global current_diff_path current_diff_side current_diff_header @@ -260,8 +278,10 @@ proc start_show_diff {cont_info {add_opts {}}} { set s $file_states($path) set m [lindex $s 0] set is_3way_diff 0 + set is_submodule_diff 0 set diff_active 1 set current_diff_header {} + set conflict_size [get_conflict_marker_size $path] set cmd [list] if {$w eq $ui_index} { @@ -274,9 +294,21 @@ proc start_show_diff {cont_info {add_opts {}}} { lappend cmd diff-files } } + if {![is_config_false gui.textconv] && [git-version >= 1.6.1]} { + lappend cmd --textconv + } + + if {[string match {160000 *} [lindex $s 2]] + || [string match {160000 *} [lindex $s 3]]} { + set is_submodule_diff 1 + + if {[git-version >= "1.6.6"]} { + lappend cmd --submodule + } + } lappend cmd -p - lappend cmd --no-color + lappend cmd --color if {$repo_config(gui.diffcontext) >= 1} { lappend cmd "-U$repo_config(gui.diffcontext)" } @@ -290,6 +322,14 @@ proc start_show_diff {cont_info {add_opts {}}} { lappend cmd $path } + if {$is_submodule_diff && [git-version < "1.6.6"]} { + if {$w eq $ui_index} { + set cmd [list submodule summary --cached -- $path] + } else { + set cmd [list submodule summary --files -- $path] + } + } + if {[catch {set fd [eval git_read --nice $cmd]} err]} { set diff_active 0 unlock_index @@ -303,47 +343,89 @@ proc start_show_diff {cont_info {add_opts {}}} { -blocking 0 \ -encoding [get_path_encoding $path] \ -translation lf - fileevent $fd readable [list read_diff $fd $cont_info] + fileevent $fd readable [list read_diff $fd $conflict_size $cont_info] +} + +proc parse_color_line {line} { + set start 0 + set result "" + set markup [list] + set regexp {\033\[((?:\d+;)*\d+)?m} + set need_reset 0 + while {[regexp -indices -start $start $regexp $line match code]} { + foreach {begin end} $match break + append result [string range $line $start [expr {$begin - 1}]] + set pos [string length $result] + set col [eval [linsert $code 0 string range $line]] + set start [incr end] + if {$col eq "0" || $col eq ""} { + if {!$need_reset} continue + set need_reset 0 + } else { + set need_reset 1 + } + lappend markup $pos $col + } + append result [string range $line $start end] + if {[llength $markup] < 4} {set markup {}} + return [list $result $markup] } -proc read_diff {fd cont_info} { - global ui_diff diff_active +proc read_diff {fd conflict_size cont_info} { + global ui_diff diff_active is_submodule_diff global is_3way_diff is_conflict_diff current_diff_header global current_diff_queue + global diff_empty_count $ui_diff conf -state normal while {[gets $fd line] >= 0} { - # -- Cleanup uninteresting diff header lines. + foreach {line markup} [parse_color_line $line] break + set line [string map {\033 ^} $line] + + set tags {} + + # -- Check for start of diff header. + if { [string match {diff --git *} $line] + || [string match {diff --cc *} $line] + || [string match {diff --combined *} $line]} { + set ::current_diff_inheader 1 + } + + # -- Check for end of diff header (any hunk line will do this). # + if {[regexp {^@@+ } $line]} {set ::current_diff_inheader 0} + + # -- Automatically detect if this is a 3 way diff. + # + if {[string match {@@@ *} $line]} {set is_3way_diff 1} + if {$::current_diff_inheader} { + + # -- These two lines stop a diff header and shouldn't be in there + if { [string match {Binary files * and * differ} $line] + || [regexp {^\* Unmerged path } $line]} { + set ::current_diff_inheader 0 + } else { + append current_diff_header $line "\n" + } + + # -- Cleanup uninteresting diff header lines. + # if { [string match {diff --git *} $line] || [string match {diff --cc *} $line] || [string match {diff --combined *} $line] || [string match {--- *} $line] - || [string match {+++ *} $line]} { - append current_diff_header $line "\n" + || [string match {+++ *} $line] + || [string match {index *} $line]} { continue } - } - if {[string match {index *} $line]} continue - if {$line eq {deleted file mode 120000}} { - set line "deleted symlink" - } - set ::current_diff_inheader 0 - # -- Automatically detect if this is a 3 way diff. - # - if {[string match {@@@ *} $line]} {set is_3way_diff 1} + # -- Name it symlink, not 120000 + # Note, that the original line is in $current_diff_header + regsub {^(deleted|new) file mode 120000} $line {\1 symlink} line - if {[string match {mode *} $line] - || [string match {new file *} $line] - || [regexp {^(old|new) mode *} $line] - || [string match {deleted file *} $line] - || [string match {deleted symlink} $line] - || [string match {Binary files * and * differ} $line] - || $line eq {\ No newline at end of file} - || [regexp {^\* Unmerged path } $line]} { - set tags {} + } elseif { $line eq {\ No newline at end of file}} { + # -- Handle some special lines } elseif {$is_3way_diff} { set op [string range $line 0 1] switch -- $op { @@ -355,7 +437,9 @@ proc read_diff {fd cont_info} { {- } {set tags d_-s} {--} {set tags d_--} {++} { - if {[regexp {^\+\+([<>]{7} |={7})} $line _g op]} { + set regexp [string map [list %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 @@ -368,6 +452,25 @@ proc read_diff {fd cont_info} { set tags {} } } + } elseif {$is_submodule_diff} { + if {$line == ""} continue + if {[regexp {^Submodule } $line]} { + set tags d_info + } elseif {[regexp {^\* } $line]} { + set line [string replace $line 0 1 {Submodule }] + set tags d_info + } else { + set op [string range $line 0 2] + switch -- $op { + { <} {set tags d_-} + { >} {set tags d_+} + { W} {set tags {}} + default { + puts "error: Unhandled submodule diff marker: {$op}" + set tags {} + } + } + } } else { set op [string index $line 0] switch -- $op { @@ -375,7 +478,9 @@ proc read_diff {fd cont_info} { {@} {set tags d_@} {-} {set tags d_-} {+} { - if {[regexp {^\+([<>]{7} |={7})} $line _g op]} { + set regexp [string map [list %conflict_size $conflict_size]\ + {^\+([<>=]){%conflict_size}(?: |$)}] + if {[regexp $regexp $line _g op]} { set is_conflict_diff 1 set tags d$op } else { @@ -388,11 +493,23 @@ proc read_diff {fd cont_info} { } } } + set mark [$ui_diff index "end - 1 line linestart"] $ui_diff insert end $line $tags if {[string index $line end] eq "\r"} { $ui_diff tag add d_cr {end - 2c} } $ui_diff insert end "\n" $tags + + foreach {posbegin colbegin posend colend} $markup { + set prefix clr + foreach style [split $colbegin ";"] { + if {$style eq "7"} {append prefix i; continue} + if {$style < 30 || $style > 47} {continue} + set a "$mark linestart + $posbegin chars" + set b "$mark linestart + $posend chars" + catch {$ui_diff tag add $prefix$style $a $b} + } + } } $ui_diff conf -state disabled @@ -415,7 +532,10 @@ proc read_diff {fd cont_info} { if {[$ui_diff index end] eq {2.0}} { handle_empty_diff + } else { + set diff_empty_count 0 } + set callback [lindex $cont_info 1] if {$callback ne {}} { eval $callback @@ -496,10 +616,23 @@ proc apply_hunk {x y} { } } -proc apply_line {x y} { +proc apply_range_or_line {x y} { global current_diff_path current_diff_header current_diff_side global ui_diff ui_index file_states + set selected [$ui_diff tag nextrange sel 0.0] + + if {$selected == {}} { + set first [$ui_diff index "@$x,$y"] + set last $first + } else { + set first [lindex $selected 0] + set last [lindex $selected 1] + } + + set first_l [$ui_diff index "$first linestart"] + set last_l [$ui_diff index "$last lineend"] + if {$current_diff_path eq {} || $current_diff_header eq {}} return if {![lock_index apply_hunk]} return @@ -522,119 +655,147 @@ proc apply_line {x y} { } } - set the_l [$ui_diff index @$x,$y] - - # operate only on change lines - set c1 [$ui_diff get "$the_l linestart"] - if {$c1 ne {+} && $c1 ne {-}} { - unlock_index - return - } - set sign $c1 + set wholepatch {} - set i_l [$ui_diff search -backwards -regexp ^@@ $the_l 0.0] - if {$i_l eq {}} { - unlock_index - return - } - # $i_l is now at the beginning of a line + while {$first_l < $last_l} { + set i_l [$ui_diff search -backwards -regexp ^@@ $first_l 0.0] + if {$i_l eq {}} { + # If there's not a @@ above, then the selected range + # must have come before the first_l @@ + set i_l [$ui_diff search -regexp ^@@ $first_l $last_l] + } + if {$i_l eq {}} { + unlock_index + return + } + # $i_l is now at the beginning of a line - # pick start line number from hunk header - set hh [$ui_diff get $i_l "$i_l + 1 lines"] - set hh [lindex [split $hh ,] 0] - set hln [lindex [split $hh -] 1] + # pick start line number from hunk header + set hh [$ui_diff get $i_l "$i_l + 1 lines"] + set hh [lindex [split $hh ,] 0] + set hln [lindex [split $hh -] 1] - # There is a special situation to take care of. Consider this hunk: - # - # @@ -10,4 +10,4 @@ - # context before - # -old 1 - # -old 2 - # +new 1 - # +new 2 - # context after - # - # We used to keep the context lines in the order they appear in the - # hunk. But then it is not possible to correctly stage only - # "-old 1" and "+new 1" - it would result in this staged text: - # - # context before - # old 2 - # new 1 - # context after - # - # (By symmetry it is not possible to *un*stage "old 2" and "new 2".) - # - # We resolve the problem by introducing an asymmetry, namely, when - # a "+" line is *staged*, it is moved in front of the context lines - # that are generated from the "-" lines that are immediately before - # the "+" block. That is, we construct this patch: - # - # @@ -10,4 +10,5 @@ - # context before - # +new 1 - # old 1 - # old 2 - # context after - # - # But we do *not* treat "-" lines that are *un*staged in a special - # way. - # - # With this asymmetry it is possible to stage the change - # "old 1" -> "new 1" directly, and to stage the change - # "old 2" -> "new 2" by first staging the entire hunk and - # then unstaging the change "old 1" -> "new 1". - - # This is non-empty if and only if we are _staging_ changes; - # then it accumulates the consecutive "-" lines (after converting - # them to context lines) in order to be moved after the "+" change - # line. - set pre_context {} - - set n 0 - set i_l [$ui_diff index "$i_l + 1 lines"] - set patch {} - while {[$ui_diff compare $i_l < "end - 1 chars"] && - [$ui_diff get $i_l "$i_l + 2 chars"] ne {@@}} { - set next_l [$ui_diff index "$i_l + 1 lines"] - set c1 [$ui_diff get $i_l] - if {[$ui_diff compare $i_l <= $the_l] && - [$ui_diff compare $the_l < $next_l]} { - # the line to stage/unstage - set ln [$ui_diff get $i_l $next_l] - if {$c1 eq {-}} { - set n [expr $n+1] + # There is a special situation to take care of. Consider this + # hunk: + # + # @@ -10,4 +10,4 @@ + # context before + # -old 1 + # -old 2 + # +new 1 + # +new 2 + # context after + # + # We used to keep the context lines in the order they appear in + # the hunk. But then it is not possible to correctly stage only + # "-old 1" and "+new 1" - it would result in this staged text: + # + # context before + # old 2 + # new 1 + # context after + # + # (By symmetry it is not possible to *un*stage "old 2" and "new + # 2".) + # + # We resolve the problem by introducing an asymmetry, namely, + # when a "+" line is *staged*, it is moved in front of the + # context lines that are generated from the "-" lines that are + # immediately before the "+" block. That is, we construct this + # patch: + # + # @@ -10,4 +10,5 @@ + # context before + # +new 1 + # old 1 + # old 2 + # context after + # + # But we do *not* treat "-" lines that are *un*staged in a + # special way. + # + # With this asymmetry it is possible to stage the change "old + # 1" -> "new 1" directly, and to stage the change "old 2" -> + # "new 2" by first staging the entire hunk and then unstaging + # the change "old 1" -> "new 1". + # + # Applying multiple lines adds complexity to the special + # situation. The pre_context must be moved after the entire + # first block of consecutive staged "+" lines, so that + # staging both additions gives the following patch: + # + # @@ -10,4 +10,6 @@ + # context before + # +new 1 + # +new 2 + # old 1 + # old 2 + # context after + + # This is non-empty if and only if we are _staging_ changes; + # then it accumulates the consecutive "-" lines (after + # converting them to context lines) in order to be moved after + # "+" change lines. + set pre_context {} + + set n 0 + set m 0 + set i_l [$ui_diff index "$i_l + 1 lines"] + set patch {} + while {[$ui_diff compare $i_l < "end - 1 chars"] && + [$ui_diff get $i_l "$i_l + 2 chars"] ne {@@}} { + set next_l [$ui_diff index "$i_l + 1 lines"] + set c1 [$ui_diff get $i_l] + if {[$ui_diff compare $first_l <= $i_l] && + [$ui_diff compare $i_l < $last_l] && + ($c1 eq {-} || $c1 eq {+})} { + # a line to stage/unstage + set ln [$ui_diff get $i_l $next_l] + if {$c1 eq {-}} { + set n [expr $n+1] + set patch "$patch$pre_context$ln" + set pre_context {} + } else { + set m [expr $m+1] + set patch "$patch$ln" + } + } elseif {$c1 ne {-} && $c1 ne {+}} { + # context line + set ln [$ui_diff get $i_l $next_l] set patch "$patch$pre_context$ln" + set n [expr $n+1] + set m [expr $m+1] + set pre_context {} + } elseif {$c1 eq $to_context} { + # turn change line into context line + set ln [$ui_diff get "$i_l + 1 chars" $next_l] + if {$c1 eq {-}} { + set pre_context "$pre_context $ln" + } else { + set patch "$patch $ln" + } + set n [expr $n+1] + set m [expr $m+1] } else { - set patch "$patch$ln$pre_context" - } - set pre_context {} - } elseif {$c1 ne {-} && $c1 ne {+}} { - # context line - set ln [$ui_diff get $i_l $next_l] - set patch "$patch$pre_context$ln" - set n [expr $n+1] - set pre_context {} - } elseif {$c1 eq $to_context} { - # turn change line into context line - set ln [$ui_diff get "$i_l + 1 chars" $next_l] - if {$c1 eq {-}} { - set pre_context "$pre_context $ln" - } else { - set patch "$patch $ln" + # a change in the opposite direction of + # to_context which is outside the range of + # lines to apply. + set patch "$patch$pre_context" + set pre_context {} } - set n [expr $n+1] + set i_l $next_l } - set i_l $next_l + set patch "$patch$pre_context" + set wholepatch "$wholepatch@@ -$hln,$n +$hln,$m @@\n$patch" + set first_l [$ui_diff index "$next_l + 1 lines"] } - set patch "@@ -$hln,$n +$hln,[eval expr $n $sign 1] @@\n$patch" 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 $patch + puts -nonewline $p $wholepatch close $p} err]} { error_popup [append $failed_msg "\n\n$err"] } |