816 lines
21 KiB
Tcl
816 lines
21 KiB
Tcl
# 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 {{after {}}} {
|
|
global file_states file_lists
|
|
global current_diff_path current_diff_side
|
|
global ui_diff
|
|
|
|
set p $current_diff_path
|
|
if {$p eq {}} {
|
|
# No diff is being shown.
|
|
} elseif {$current_diff_side eq {}} {
|
|
clear_diff
|
|
} elseif {[catch {set s $file_states($p)}]
|
|
|| [lsearch -sorted -exact $file_lists($current_diff_side) $p] == -1} {
|
|
|
|
if {[find_next_diff $current_diff_side $p {} {[^O]}]} {
|
|
next_diff $after
|
|
} else {
|
|
clear_diff
|
|
}
|
|
} else {
|
|
set save_pos [lindex [$ui_diff yview] 0]
|
|
show_diff $p $current_diff_side {} $save_pos $after
|
|
}
|
|
}
|
|
|
|
proc force_diff_encoding {enc} {
|
|
global current_diff_path
|
|
|
|
if {$current_diff_path ne {}} {
|
|
force_path_encoding $current_diff_path $enc
|
|
reshow_diff
|
|
}
|
|
}
|
|
|
|
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} || [has_textconv $path]} return
|
|
|
|
# Prevent infinite rescan loops
|
|
incr diff_empty_count
|
|
if {$diff_empty_count > 1} return
|
|
|
|
info_popup [mc "No differences detected.
|
|
|
|
%s 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." [short_path $path]]
|
|
|
|
clear_diff
|
|
display_file $path __
|
|
rescan ui_ready 0
|
|
}
|
|
|
|
proc show_diff {path w {lno {}} {scroll_pos {}} {callback {}}} {
|
|
global file_states file_lists
|
|
global is_3way_diff is_conflict_diff diff_active repo_config
|
|
global ui_diff ui_index ui_workdir
|
|
global current_diff_path current_diff_side current_diff_header
|
|
global current_diff_queue
|
|
|
|
if {$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
|
|
$w see $lno.0
|
|
}
|
|
|
|
set s $file_states($path)
|
|
set m [lindex $s 0]
|
|
set is_conflict_diff 0
|
|
set current_diff_path $path
|
|
set current_diff_side $w
|
|
set current_diff_queue {}
|
|
ui_status [mc "Loading diff of %s..." [escape_path $path]]
|
|
|
|
set cont_info [list $scroll_pos $callback]
|
|
|
|
if {[string first {U} $m] >= 0} {
|
|
merge_load_stages $path [list show_unmerged_diff $cont_info]
|
|
} elseif {$m eq {_O}} {
|
|
show_other_diff $path $w $m $cont_info
|
|
} else {
|
|
start_show_diff $cont_info
|
|
}
|
|
}
|
|
|
|
proc show_unmerged_diff {cont_info} {
|
|
global current_diff_path current_diff_side
|
|
global merge_stages ui_diff is_conflict_diff
|
|
global current_diff_queue
|
|
|
|
if {$merge_stages(2) eq {}} {
|
|
set is_conflict_diff 1
|
|
lappend current_diff_queue \
|
|
[list [mc "LOCAL: deleted\nREMOTE:\n"] d= \
|
|
[list ":1:$current_diff_path" ":3:$current_diff_path"]]
|
|
} elseif {$merge_stages(3) eq {}} {
|
|
set is_conflict_diff 1
|
|
lappend current_diff_queue \
|
|
[list [mc "REMOTE: deleted\nLOCAL:\n"] d= \
|
|
[list ":1:$current_diff_path" ":2:$current_diff_path"]]
|
|
} elseif {[lindex $merge_stages(1) 0] eq {120000}
|
|
|| [lindex $merge_stages(2) 0] eq {120000}
|
|
|| [lindex $merge_stages(3) 0] eq {120000}} {
|
|
set is_conflict_diff 1
|
|
lappend current_diff_queue \
|
|
[list [mc "LOCAL:\n"] d= \
|
|
[list ":1:$current_diff_path" ":2:$current_diff_path"]]
|
|
lappend current_diff_queue \
|
|
[list [mc "REMOTE:\n"] d= \
|
|
[list ":1:$current_diff_path" ":3:$current_diff_path"]]
|
|
} else {
|
|
start_show_diff $cont_info
|
|
return
|
|
}
|
|
|
|
advance_diff_queue $cont_info
|
|
}
|
|
|
|
proc advance_diff_queue {cont_info} {
|
|
global current_diff_queue ui_diff
|
|
|
|
set item [lindex $current_diff_queue 0]
|
|
set current_diff_queue [lrange $current_diff_queue 1 end]
|
|
|
|
$ui_diff conf -state normal
|
|
$ui_diff insert end [lindex $item 0] [lindex $item 1]
|
|
$ui_diff conf -state disabled
|
|
|
|
start_show_diff $cont_info [lindex $item 2]
|
|
}
|
|
|
|
proc show_other_diff {path w m cont_info} {
|
|
global file_states file_lists
|
|
global is_3way_diff diff_active repo_config
|
|
global ui_diff ui_index ui_workdir
|
|
global current_diff_path current_diff_side current_diff_header
|
|
|
|
# - Git won't give us the diff, there's nothing to compare to!
|
|
#
|
|
if {$m eq {_O}} {
|
|
set max_sz 100000
|
|
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 {} \
|
|
-encoding [get_path_encoding $path]
|
|
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 [mc "Unable to display %s" [escape_path $path]]
|
|
error_popup [strcat [mc "Error loading file:"] "\n\n$err"]
|
|
return
|
|
}
|
|
$ui_diff conf -state normal
|
|
if {$type eq {submodule}} {
|
|
$ui_diff insert end [append \
|
|
"* " \
|
|
[mc "Git Repository (subproject)"] \
|
|
"\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_info
|
|
}
|
|
if {[string first "\0" $content] != -1} {
|
|
$ui_diff insert end \
|
|
[mc "* Binary file (not showing content)."] \
|
|
d_info
|
|
} else {
|
|
if {$sz > $max_sz} {
|
|
$ui_diff insert end [mc \
|
|
"* Untracked file is %d bytes.
|
|
* Showing only first %d bytes.
|
|
" $sz $max_sz] d_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_info
|
|
}
|
|
}
|
|
$ui_diff conf -state disabled
|
|
set diff_active 0
|
|
unlock_index
|
|
set scroll_pos [lindex $cont_info 0]
|
|
if {$scroll_pos ne {}} {
|
|
update
|
|
$ui_diff yview moveto $scroll_pos
|
|
}
|
|
ui_ready
|
|
set callback [lindex $cont_info 1]
|
|
if {$callback ne {}} {
|
|
eval $callback
|
|
}
|
|
return
|
|
}
|
|
}
|
|
|
|
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
|
|
global ui_diff ui_index ui_workdir
|
|
global current_diff_path current_diff_side current_diff_header
|
|
|
|
set path $current_diff_path
|
|
set w $current_diff_side
|
|
|
|
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 $ui_index} {
|
|
lappend cmd diff-index
|
|
lappend cmd --cached
|
|
if {[git-version >= "1.7.2"]} {
|
|
lappend cmd --ignore-submodules=dirty
|
|
}
|
|
} elseif {$w eq $ui_workdir} {
|
|
if {[string first {U} $m] >= 0} {
|
|
lappend cmd diff
|
|
} else {
|
|
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 --color
|
|
set cmd [concat $cmd $repo_config(gui.diffopts)]
|
|
if {$repo_config(gui.diffcontext) >= 1} {
|
|
lappend cmd "-U$repo_config(gui.diffcontext)"
|
|
}
|
|
if {$w eq $ui_index} {
|
|
lappend cmd [PARENT]
|
|
}
|
|
if {$add_opts ne {}} {
|
|
eval lappend cmd $add_opts
|
|
} else {
|
|
lappend cmd --
|
|
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
|
|
ui_status [mc "Unable to display %s" [escape_path $path]]
|
|
error_popup [strcat [mc "Error loading diff:"] "\n\n$err"]
|
|
return
|
|
}
|
|
|
|
set ::current_diff_inheader 1
|
|
fconfigure $fd \
|
|
-blocking 0 \
|
|
-encoding [get_path_encoding $path] \
|
|
-translation lf
|
|
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 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} {
|
|
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]
|
|
|| [string match {index *} $line]} {
|
|
continue
|
|
}
|
|
|
|
# -- 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
|
|
|
|
} 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 {
|
|
{ } {set tags {}}
|
|
{@@} {set tags d_@}
|
|
{ +} {set tags d_s+}
|
|
{ -} {set tags d_s-}
|
|
{+ } {set tags d_+s}
|
|
{- } {set tags d_-s}
|
|
{--} {set tags d_--}
|
|
{++} {
|
|
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
|
|
} else {
|
|
set tags d_++
|
|
}
|
|
}
|
|
default {
|
|
puts "error: Unhandled 3 way diff marker: {$op}"
|
|
set tags {}
|
|
}
|
|
}
|
|
} elseif {$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 {
|
|
{ } {set tags {}}
|
|
{@} {set tags d_@}
|
|
{-} {set tags d_-}
|
|
{+} {
|
|
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 {
|
|
set tags d_+
|
|
}
|
|
}
|
|
default {
|
|
puts "error: Unhandled 2 way diff marker: {$op}"
|
|
set tags {}
|
|
}
|
|
}
|
|
}
|
|
set mark [$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 [lsort -integer [split $colbegin ";"]] {
|
|
if {$style eq "7"} {append prefix i; continue}
|
|
if {$style != 4 && ($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
|
|
|
|
if {[eof $fd]} {
|
|
close $fd
|
|
|
|
if {$current_diff_queue ne {}} {
|
|
advance_diff_queue $cont_info
|
|
return
|
|
}
|
|
|
|
set diff_active 0
|
|
unlock_index
|
|
set scroll_pos [lindex $cont_info 0]
|
|
if {$scroll_pos ne {}} {
|
|
update
|
|
$ui_diff yview moveto $scroll_pos
|
|
}
|
|
ui_ready
|
|
|
|
if {[$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 $callback
|
|
}
|
|
}
|
|
}
|
|
|
|
proc apply_hunk {x y} {
|
|
global current_diff_path current_diff_header current_diff_side
|
|
global ui_diff ui_index file_states
|
|
|
|
if {$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 failed_msg [mc "Failed to unstage selected hunk."]
|
|
lappend apply_cmd --reverse
|
|
if {[string index $mi 0] ne {M}} {
|
|
unlock_index
|
|
return
|
|
}
|
|
} else {
|
|
set failed_msg [mc "Failed to stage selected hunk."]
|
|
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 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]
|
|
close $p} err]} {
|
|
error_popup [append $failed_msg "\n\n$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 $mi
|
|
# This should trigger shift to the next changed file
|
|
if {$o eq {_}} {
|
|
reshow_diff
|
|
}
|
|
}
|
|
|
|
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
|
|
|
|
set apply_cmd {apply --cached --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
|
|
if {[string index $mi 0] ne {M}} {
|
|
unlock_index
|
|
return
|
|
}
|
|
} else {
|
|
set failed_msg [mc "Failed to stage selected line."]
|
|
set to_context {-}
|
|
if {[string index $mi 1] ne {M}} {
|
|
unlock_index
|
|
return
|
|
}
|
|
}
|
|
|
|
set wholepatch {}
|
|
|
|
while {$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 $hh -] 1]
|
|
|
|
# There is a special situation to take care of. Consider this
|
|
# hunk:
|
|
#
|
|
# @@ -10,4 +10,4 @@
|
|
# context before
|
|
# -old 1
|
|
# -old 2
|
|
# +new 1
|
|
# +new 2
|
|
# context after
|
|
#
|
|
# We used to keep the context lines in the order they appear in
|
|
# the hunk. But then it is not possible to correctly stage only
|
|
# "-old 1" and "+new 1" - it would result in this staged text:
|
|
#
|
|
# context before
|
|
# old 2
|
|
# new 1
|
|
# context after
|
|
#
|
|
# (By symmetry it is not possible to *un*stage "old 2" and "new
|
|
# 2".)
|
|
#
|
|
# We resolve the problem by introducing an asymmetry, namely,
|
|
# when a "+" line is *staged*, it is moved in front of the
|
|
# context lines that are generated from the "-" lines that are
|
|
# immediately before the "+" block. That is, we construct this
|
|
# patch:
|
|
#
|
|
# @@ -10,4 +10,5 @@
|
|
# context before
|
|
# +new 1
|
|
# old 1
|
|
# old 2
|
|
# context after
|
|
#
|
|
# But we do *not* treat "-" lines that are *un*staged in a
|
|
# special way.
|
|
#
|
|
# With this asymmetry it is possible to stage the change "old
|
|
# 1" -> "new 1" directly, and to stage the change "old 2" ->
|
|
# "new 2" by first staging the entire hunk and then unstaging
|
|
# the change "old 1" -> "new 1".
|
|
#
|
|
# Applying multiple lines adds complexity to the special
|
|
# situation. The pre_context must be moved after the entire
|
|
# first block of consecutive staged "+" lines, so that
|
|
# staging both additions gives the following patch:
|
|
#
|
|
# @@ -10,4 +10,6 @@
|
|
# context before
|
|
# +new 1
|
|
# +new 2
|
|
# old 1
|
|
# old 2
|
|
# context after
|
|
|
|
# This is non-empty if and only if we are _staging_ changes;
|
|
# then it accumulates the consecutive "-" lines (after
|
|
# converting them to context lines) in order to be moved after
|
|
# "+" change lines.
|
|
set pre_context {}
|
|
|
|
set n 0
|
|
set m 0
|
|
set i_l [$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"
|
|
# Skip the "\ No newline at end of
|
|
# file". Depending on the locale setting
|
|
# we don't know what this line looks
|
|
# like exactly. The only thing we do
|
|
# know is that it starts with "\ "
|
|
if {![string match {\\ *} $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 $m+1]
|
|
} else {
|
|
# a change in the opposite direction of
|
|
# to_context which is outside the range of
|
|
# lines to apply.
|
|
set patch "$patch$pre_context"
|
|
set pre_context {}
|
|
}
|
|
set 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"]
|
|
}
|
|
|
|
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 $wholepatch
|
|
close $p} err]} {
|
|
error_popup [append $failed_msg "\n\n$err"]
|
|
}
|
|
|
|
unlock_index
|
|
}
|