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.
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
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 {}
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 $path
}
+ if {$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
}
proc read_diff {fd cont_info} {
- global ui_diff diff_active
+ 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 $fd line] >= 0} {
set tags {}
}
}
+ } elseif {$is_submodule_diff} {
+ if {$line == ""} continue
+ if {[regexp {^Submodule } $line]} {
+ set tags d_@
+ } elseif {[regexp {^\* } $line]} {
+ set line [string replace $line 0 1 {Submodule }]
+ set tags d_@
+ } 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 -- $op {
if {[$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 $callback
}
}
-proc apply_line {x y} {
+proc apply_range_or_line {x y} {
global current_diff_path current_diff_header current_diff_side
global ui_diff ui_index file_states
+ set selected [$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 {} || $current_diff_header eq {}} return
if {![lock_index apply_hunk]} return
}
}
- set the_l [$ui_diff index @$x,$y]
+ set wholepatch {}
- # operate only on change lines
- set c1 [$ui_diff get "$the_l linestart"]
- if {$c1 ne {+} && $c1 ne {-}} {
- unlock_index
- return
- }
- set sign $c1
-
- set i_l [$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"]
}