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-rw-r--r--git-gui/lib/blame.tcl105
-rw-r--r--git-gui/lib/diff.tcl64
-rw-r--r--git-gui/lib/option.tcl2
3 files changed, 156 insertions, 15 deletions
diff --git a/git-gui/lib/blame.tcl b/git-gui/lib/blame.tcl
index 92fac1b..b6e42cb 100644
--- a/git-gui/lib/blame.tcl
+++ b/git-gui/lib/blame.tcl
@@ -33,13 +33,6 @@ variable group_colors {
#ececec
}
-# Switches for original location detection
-#
-variable original_options [list -C -C]
-if {[git-version >= 1.5.3]} {
- lappend original_options -w ; # ignore indentation changes
-}
-
# Current blame data; cleared/reset on each load
#
field commit ; # input commit to blame
@@ -263,6 +256,9 @@ constructor new {i_commit i_path} {
$w.ctxm add command \
-label [mc "Copy Commit"] \
-command [cb _copycommit]
+ $w.ctxm add command \
+ -label [mc "Do Full Copy Detection"] \
+ -command [cb _fullcopyblame]
foreach i $w_columns {
for {set g 0} {$g < [llength $group_colors]} {incr g} {
@@ -333,19 +329,27 @@ constructor new {i_commit i_path} {
bind $w.file_pane <Configure> \
"if {{$w.file_pane} eq {%W}} {[cb _resize %h]}"
+ wm protocol $top WM_DELETE_WINDOW "destroy $top"
+ bind $top <Destroy> [cb _kill]
+
_load $this {}
}
+method _kill {} {
+ if {$current_fd ne {}} {
+ kill_file_process $current_fd
+ catch {close $current_fd}
+ set current_fd {}
+ }
+}
+
method _load {jump} {
variable group_colors
_hide_tooltip $this
if {$total_lines != 0 || $current_fd ne {}} {
- if {$current_fd ne {}} {
- catch {close $current_fd}
- set current_fd {}
- }
+ _kill $this
foreach i $w_columns {
$i conf -state normal
@@ -511,7 +515,6 @@ method _exec_blame {cur_w cur_d options cur_s} {
method _read_blame {fd cur_w cur_d} {
upvar #0 $cur_d line_data
variable group_colors
- variable original_options
if {$fd ne $current_fd} {
catch {close $fd}
@@ -684,6 +687,18 @@ method _read_blame {fd cur_w cur_d} {
if {[eof $fd]} {
close $fd
if {$cur_w eq $w_asim} {
+ # Switches for original location detection
+ set threshold [get_config gui.copyblamethreshold]
+ set original_options [list "-C$threshold"]
+
+ if {![is_config_true gui.fastcopyblame]} {
+ # thorough copy search; insert before the threshold
+ set original_options [linsert $original_options 0 -C]
+ }
+ if {[git-version >= 1.5.3]} {
+ lappend original_options -w ; # ignore indentation changes
+ }
+
_exec_blame $this $w_amov @amov_data \
$original_options \
[mc "Loading original location annotations..."]
@@ -696,6 +711,72 @@ method _read_blame {fd cur_w cur_d} {
}
} ifdeleted { catch {close $fd} }
+method _find_commit_bound {data_list start_idx delta} {
+ upvar #0 $data_list line_data
+ set pos $start_idx
+ set limit [expr {[llength $line_data] - 1}]
+ set base_commit [lindex $line_data $pos 0]
+
+ while {$pos > 0 && $pos < $limit} {
+ set new_pos [expr {$pos + $delta}]
+ if {[lindex $line_data $new_pos 0] ne $base_commit} {
+ return $pos
+ }
+
+ set pos $new_pos
+ }
+
+ return $pos
+}
+
+method _fullcopyblame {} {
+ if {$current_fd ne {}} {
+ tk_messageBox \
+ -icon error \
+ -type ok \
+ -title [mc "Busy"] \
+ -message [mc "Annotation process is already running."]
+
+ return
+ }
+
+ # Switches for original location detection
+ set threshold [get_config gui.copyblamethreshold]
+ set original_options [list -C -C "-C$threshold"]
+
+ if {[git-version >= 1.5.3]} {
+ lappend original_options -w ; # ignore indentation changes
+ }
+
+ # Find the line range
+ set pos @$::cursorX,$::cursorY
+ set lno [lindex [split [$::cursorW index $pos] .] 0]
+ set min_amov_lno [_find_commit_bound $this @amov_data $lno -1]
+ set max_amov_lno [_find_commit_bound $this @amov_data $lno 1]
+ set min_asim_lno [_find_commit_bound $this @asim_data $lno -1]
+ set max_asim_lno [_find_commit_bound $this @asim_data $lno 1]
+
+ if {$min_asim_lno < $min_amov_lno} {
+ set min_amov_lno $min_asim_lno
+ }
+
+ if {$max_asim_lno > $max_amov_lno} {
+ set max_amov_lno $max_asim_lno
+ }
+
+ lappend original_options -L "$min_amov_lno,$max_amov_lno"
+
+ # Clear lines
+ for {set i $min_amov_lno} {$i <= $max_amov_lno} {incr i} {
+ lset amov_data $i [list ]
+ }
+
+ # Start the back-end process
+ _exec_blame $this $w_amov @amov_data \
+ $original_options \
+ [mc "Running thorough copy detection..."]
+}
+
method _click {cur_w pos} {
set lno [lindex [split [$cur_w index $pos] .] 0]
_showcommit $this $cur_w $lno
diff --git a/git-gui/lib/diff.tcl b/git-gui/lib/diff.tcl
index 96ba949..77990c5 100644
--- a/git-gui/lib/diff.tcl
+++ b/git-gui/lib/diff.tcl
@@ -411,6 +411,53 @@ proc apply_line {x y} {
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 "$i_l + 1 lines"]
set patch {}
@@ -422,16 +469,27 @@ proc apply_line {x y} {
[$ui_diff compare $the_l < $next_l]} {
# the line to stage/unstage
set ln [$ui_diff get $i_l $next_l]
- set patch "$patch$ln"
+ if {$c1 eq {-}} {
+ set n [expr $n+1]
+ set patch "$patch$pre_context$ln"
+ } 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$ln"
+ set patch "$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" $next_l]
- set patch "$patch $ln"
+ if {$c1 eq {-}} {
+ set pre_context "$pre_context $ln"
+ } else {
+ set patch "$patch $ln"
+ }
set n [expr $n+1]
}
set i_l $next_l
diff --git a/git-gui/lib/option.tcl b/git-gui/lib/option.tcl
index 9270512..ffb3f00 100644
--- a/git-gui/lib/option.tcl
+++ b/git-gui/lib/option.tcl
@@ -123,6 +123,8 @@ proc do_options {} {
{b gui.trustmtime {mc "Trust File Modification Timestamps"}}
{b gui.pruneduringfetch {mc "Prune Tracking Branches During Fetch"}}
{b gui.matchtrackingbranch {mc "Match Tracking Branches"}}
+ {b gui.fastcopyblame {mc "Blame Copy Only On Changed Files"}}
+ {i-20..200 gui.copyblamethreshold {mc "Minimum Letters To Blame Copy On"}}
{i-0..99 gui.diffcontext {mc "Number of Diff Context Lines"}}
{i-0..99 gui.commitmsgwidth {mc "Commit Message Text Width"}}
{t gui.newbranchtemplate {mc "New Branch Name Template"}}