You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
358 lines
8.1 KiB
358 lines
8.1 KiB
# git-gui diff viewer |
|
# Copyright (C) 2006, 2007 Shawn Pearce |
|
|
|
proc clear_diff {} { |
|
global ui_diff current_diff_path current_diff_header |
|
global ui_index ui_workdir |
|
|
|
$ui_diff conf -state normal |
|
$ui_diff delete 0.0 end |
|
$ui_diff conf -state disabled |
|
|
|
set current_diff_path {} |
|
set current_diff_header {} |
|
|
|
$ui_index tag remove in_diff 0.0 end |
|
$ui_workdir tag remove in_diff 0.0 end |
|
} |
|
|
|
proc reshow_diff {} { |
|
global file_states file_lists |
|
global current_diff_path current_diff_side |
|
|
|
set p $current_diff_path |
|
if {$p eq {}} { |
|
# No diff is being shown. |
|
} elseif {$current_diff_side eq {} |
|
|| [catch {set s $file_states($p)}] |
|
|| [lsearch -sorted -exact $file_lists($current_diff_side) $p] == -1} { |
|
clear_diff |
|
} else { |
|
show_diff $p $current_diff_side |
|
} |
|
} |
|
|
|
proc handle_empty_diff {} { |
|
global current_diff_path file_states file_lists |
|
|
|
set path $current_diff_path |
|
set s $file_states($path) |
|
if {[lindex $s 0] ne {_M}} return |
|
|
|
info_popup "No differences detected. |
|
|
|
[short_path $path] has no changes. |
|
|
|
The modification date of this file was updated by another application, but the content within the file was not changed. |
|
|
|
A rescan will be automatically started to find other files which may have the same state." |
|
|
|
clear_diff |
|
display_file $path __ |
|
rescan ui_ready 0 |
|
} |
|
|
|
proc show_diff {path w {lno {}}} { |
|
global file_states file_lists |
|
global is_3way_diff diff_active repo_config |
|
global ui_diff ui_index ui_workdir |
|
global current_diff_path current_diff_side current_diff_header |
|
|
|
if {$diff_active || ![lock_index read]} return |
|
|
|
clear_diff |
|
if {$lno == {}} { |
|
set lno [lsearch -sorted -exact $file_lists($w) $path] |
|
if {$lno >= 0} { |
|
incr lno |
|
} |
|
} |
|
if {$lno >= 1} { |
|
$w tag add in_diff $lno.0 [expr {$lno + 1}].0 |
|
} |
|
|
|
set s $file_states($path) |
|
set m [lindex $s 0] |
|
set is_3way_diff 0 |
|
set diff_active 1 |
|
set current_diff_path $path |
|
set current_diff_side $w |
|
set current_diff_header {} |
|
ui_status "Loading diff of [escape_path $path]..." |
|
|
|
# - Git won't give us the diff, there's nothing to compare to! |
|
# |
|
if {$m eq {_O}} { |
|
set max_sz [expr {128 * 1024}] |
|
set type unknown |
|
if {[catch { |
|
set type [file type $path] |
|
switch -- $type { |
|
directory { |
|
set type submodule |
|
set content {} |
|
set sz 0 |
|
} |
|
link { |
|
set content [file readlink $path] |
|
set sz [string length $content] |
|
} |
|
file { |
|
set fd [open $path r] |
|
fconfigure $fd -eofchar {} |
|
set content [read $fd $max_sz] |
|
close $fd |
|
set sz [file size $path] |
|
} |
|
default { |
|
error "'$type' not supported" |
|
} |
|
} |
|
} err ]} { |
|
set diff_active 0 |
|
unlock_index |
|
ui_status "Unable to display [escape_path $path]" |
|
error_popup "Error loading file:\n\n$err" |
|
return |
|
} |
|
$ui_diff conf -state normal |
|
if {$type eq {submodule}} { |
|
$ui_diff insert end "* Git Repository (subproject)\n" d_@ |
|
} 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_@ |
|
} |
|
if {[string first "\0" $content] != -1} { |
|
$ui_diff insert end \ |
|
"* Binary file (not showing content)." \ |
|
d_@ |
|
} else { |
|
if {$sz > $max_sz} { |
|
$ui_diff insert end \ |
|
"* Untracked file is $sz bytes. |
|
* Showing only first $max_sz bytes. |
|
" d_@ |
|
} |
|
$ui_diff insert end $content |
|
if {$sz > $max_sz} { |
|
$ui_diff insert end " |
|
* Untracked file clipped here by [appname]. |
|
* To see the entire file, use an external editor. |
|
" d_@ |
|
} |
|
} |
|
$ui_diff conf -state disabled |
|
set diff_active 0 |
|
unlock_index |
|
ui_ready |
|
return |
|
} |
|
|
|
set cmd [list] |
|
if {$w eq $ui_index} { |
|
lappend cmd diff-index |
|
lappend cmd --cached |
|
} elseif {$w eq $ui_workdir} { |
|
if {[string index $m 0] eq {U}} { |
|
lappend cmd diff |
|
} else { |
|
lappend cmd diff-files |
|
} |
|
} |
|
|
|
lappend cmd -p |
|
lappend cmd --no-color |
|
if {$repo_config(gui.diffcontext) >= 0} { |
|
lappend cmd "-U$repo_config(gui.diffcontext)" |
|
} |
|
if {$w eq $ui_index} { |
|
lappend cmd [PARENT] |
|
} |
|
lappend cmd -- |
|
lappend cmd $path |
|
|
|
if {[catch {set fd [eval git_read --nice $cmd]} err]} { |
|
set diff_active 0 |
|
unlock_index |
|
ui_status "Unable to display [escape_path $path]" |
|
error_popup "Error loading diff:\n\n$err" |
|
return |
|
} |
|
|
|
fconfigure $fd \ |
|
-blocking 0 \ |
|
-encoding binary \ |
|
-translation binary |
|
fileevent $fd readable [list read_diff $fd] |
|
} |
|
|
|
proc read_diff {fd} { |
|
global ui_diff diff_active |
|
global is_3way_diff current_diff_header |
|
|
|
$ui_diff conf -state normal |
|
while {[gets $fd line] >= 0} { |
|
# -- 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" |
|
continue |
|
} |
|
if {[string match {index *} $line]} continue |
|
if {$line eq {deleted file mode 120000}} { |
|
set line "deleted symlink" |
|
} |
|
|
|
# -- Automatically detect if this is a 3 way diff. |
|
# |
|
if {[string match {@@@ *} $line]} {set is_3way_diff 1} |
|
|
|
if {[string match {mode *} $line] |
|
|| [string match {new file *} $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 } $line]} { |
|
set tags {} |
|
} elseif {$is_3way_diff} { |
|
set op [string range $line 0 1] |
|
switch -- $op { |
|
{ } {set tags {}} |
|
{@@} {set tags d_@} |
|
{ +} {set tags d_s+} |
|
{ -} {set tags d_s-} |
|
{+ } {set tags d_+s} |
|
{- } {set tags d_-s} |
|
{--} {set tags d_--} |
|
{++} { |
|
if {[regexp {^\+\+([<>]{7} |={7})} $line _g op]} { |
|
set line [string replace $line 0 1 { }] |
|
set tags d$op |
|
} else { |
|
set tags d_++ |
|
} |
|
} |
|
default { |
|
puts "error: Unhandled 3 way diff marker: {$op}" |
|
set tags {} |
|
} |
|
} |
|
} else { |
|
set op [string index $line 0] |
|
switch -- $op { |
|
{ } {set tags {}} |
|
{@} {set tags d_@} |
|
{-} {set tags d_-} |
|
{+} { |
|
if {[regexp {^\+([<>]{7} |={7})} $line _g op]} { |
|
set line [string replace $line 0 0 { }] |
|
set tags d$op |
|
} else { |
|
set tags d_+ |
|
} |
|
} |
|
default { |
|
puts "error: Unhandled 2 way diff marker: {$op}" |
|
set tags {} |
|
} |
|
} |
|
} |
|
$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 |
|
} |
|
$ui_diff conf -state disabled |
|
|
|
if {[eof $fd]} { |
|
close $fd |
|
set diff_active 0 |
|
unlock_index |
|
ui_ready |
|
|
|
if {[$ui_diff index end] eq {2.0}} { |
|
handle_empty_diff |
|
} |
|
} |
|
} |
|
|
|
proc apply_hunk {x y} { |
|
global current_diff_path current_diff_header current_diff_side |
|
global ui_diff ui_index file_states |
|
|
|
if {$current_diff_path eq {} || $current_diff_header eq {}} return |
|
if {![lock_index apply_hunk]} return |
|
|
|
set apply_cmd {apply --cached --whitespace=nowarn} |
|
set mi [lindex $file_states($current_diff_path) 0] |
|
if {$current_diff_side eq $ui_index} { |
|
set mode unstage |
|
lappend apply_cmd --reverse |
|
if {[string index $mi 0] ne {M}} { |
|
unlock_index |
|
return |
|
} |
|
} else { |
|
set mode stage |
|
if {[string index $mi 1] ne {M}} { |
|
unlock_index |
|
return |
|
} |
|
} |
|
|
|
set s_lno [lindex [split [$ui_diff index @$x,$y] .] 0] |
|
set s_lno [$ui_diff search -backwards -regexp ^@@ $s_lno.0 0.0] |
|
if {$s_lno eq {}} { |
|
unlock_index |
|
return |
|
} |
|
|
|
set e_lno [$ui_diff search -forwards -regexp ^@@ "$s_lno + 1 lines" end] |
|
if {$e_lno eq {}} { |
|
set e_lno end |
|
} |
|
|
|
if {[catch { |
|
set p [eval git_write $apply_cmd] |
|
fconfigure $p -translation binary -encoding binary |
|
puts -nonewline $p $current_diff_header |
|
puts -nonewline $p [$ui_diff get $s_lno $e_lno] |
|
close $p} err]} { |
|
error_popup "Failed to $mode selected hunk.\n\n$err" |
|
unlock_index |
|
return |
|
} |
|
|
|
$ui_diff conf -state normal |
|
$ui_diff delete $s_lno $e_lno |
|
$ui_diff conf -state disabled |
|
|
|
if {[$ui_diff get 1.0 end] eq "\n"} { |
|
set o _ |
|
} else { |
|
set o ? |
|
} |
|
|
|
if {$current_diff_side eq $ui_index} { |
|
set mi ${o}M |
|
} elseif {[string index $mi 0] eq {_}} { |
|
set mi M$o |
|
} else { |
|
set mi ?$o |
|
} |
|
unlock_index |
|
display_file $current_diff_path $mi |
|
if {$o eq {_}} { |
|
clear_diff |
|
} |
|
}
|
|
|