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-rw-r--r--git-gui/lib/diff.tcl178
1 files changed, 139 insertions, 39 deletions
diff --git a/git-gui/lib/diff.tcl b/git-gui/lib/diff.tcl
index ec4405567a..871ad488c2 100644
--- a/git-gui/lib/diff.tcl
+++ b/git-gui/lib/diff.tcl
@@ -1,6 +1,19 @@
# git-gui diff viewer
# Copyright (C) 2006, 2007 Shawn Pearce
+proc apply_tab_size {{firsttab {}}} {
+ global have_tk85 repo_config ui_diff
+
+ set w [font measure font_diff "0"]
+ if {$have_tk85 && $firsttab != 0} {
+ $ui_diff configure -tabs [list [expr {$firsttab * $w}] [expr {($firsttab + $repo_config(gui.tabsize)) * $w}]]
+ } elseif {$have_tk85 || $repo_config(gui.tabsize) != 8} {
+ $ui_diff configure -tabs [expr {$repo_config(gui.tabsize) * $w}]
+ } else {
+ $ui_diff configure -tabs {}
+ }
+}
+
proc clear_diff {} {
global ui_diff current_diff_path current_diff_header
global ui_index ui_workdir
@@ -42,7 +55,7 @@ proc reshow_diff {{after {}}} {
proc force_diff_encoding {enc} {
global current_diff_path
-
+
if {$current_diff_path ne {}} {
force_path_encoding $current_diff_path $enc
reshow_diff
@@ -105,6 +118,8 @@ proc show_diff {path w {lno {}} {scroll_pos {}} {callback {}}} {
set cont_info [list $scroll_pos $callback]
+ apply_tab_size 0
+
if {[string first {U} $m] >= 0} {
merge_load_stages $path [list show_unmerged_diff $cont_info]
} elseif {$m eq {_O}} {
@@ -112,6 +127,9 @@ proc show_diff {path w {lno {}} {scroll_pos {}} {callback {}}} {
} else {
start_show_diff $cont_info
}
+
+ global current_diff_path selected_paths
+ set selected_paths($current_diff_path) 1
}
proc show_unmerged_diff {cont_info} {
@@ -205,10 +223,9 @@ proc show_other_diff {path w m cont_info} {
}
$ui_diff conf -state normal
if {$type eq {submodule}} {
- $ui_diff insert end [append \
- "* " \
- [mc "Git Repository (subproject)"] \
- "\n"] d_info
+ $ui_diff insert end \
+ "* [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]} {
@@ -253,19 +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
@@ -281,12 +285,15 @@ 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 $ui_index} {
lappend cmd diff-index
lappend cmd --cached
+ if {[git-version >= "1.7.2"]} {
+ lappend cmd --ignore-submodules=dirty
+ }
} elseif {$w eq $ui_workdir} {
if {[string first {U} $m] >= 0} {
lappend cmd diff
@@ -340,6 +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] \
@@ -398,7 +409,10 @@ proc read_diff {fd conflict_size cont_info} {
# -- Automatically detect if this is a 3 way diff.
#
- if {[string match {@@@ *} $line]} {set is_3way_diff 1}
+ if {[string match {@@@ *} $line]} {
+ set is_3way_diff 1
+ apply_tab_size 1
+ }
if {$::current_diff_inheader} {
@@ -439,11 +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 $line 0 1 {--}]
+ set tags d_--
} else {
set tags d_++
}
@@ -544,24 +570,31 @@ proc read_diff {fd conflict_size cont_info} {
}
}
-proc apply_hunk {x y} {
+proc apply_or_revert_hunk {x y revert} {
global current_diff_path current_diff_header current_diff_side
- global ui_diff ui_index file_states
+ global ui_diff ui_index file_states last_revert last_revert_enc
if {$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 $mi 1] ne {M}} {
unlock_index
return
@@ -580,29 +613,40 @@ proc apply_hunk {x y} {
set e_lno end
}
+ set wholepatch "$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 [append $failed_msg "\n\n$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
@@ -617,9 +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 [$ui_diff tag nextrange sel 0.0]
@@ -637,19 +681,27 @@ proc apply_range_or_line {x y} {
if {$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 $mi 1] ne {M}} {
unlock_index
return
@@ -675,6 +727,7 @@ proc apply_range_or_line {x y} {
set hh [$ui_diff get $i_l "$i_l + 1 lines"]
set hh [lindex [split $hh ,] 0]
set hln [lindex [split $hh -] 1]
+ set hln [lindex [split $hln " "] 0]
# There is a special situation to take care of. Consider this
# hunk:
@@ -764,8 +817,15 @@ proc apply_range_or_line {x y} {
# context line
set ln [$ui_diff get $i_l $next_l]
set patch "$patch$pre_context$ln"
- set n [expr $n+1]
- set m [expr $m+1]
+ # 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
@@ -798,8 +858,48 @@ proc apply_range_or_line {x y} {
puts -nonewline $p $current_diff_header
puts -nonewline $p $wholepatch
close $p} err]} {
- error_popup [append $failed_msg "\n\n$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
}
generated by cgit v1.2.3 (git 2.46.0) at 2025-12-05 19:08:35 +0000