Merge branch 'maint'
[gitweb.git] / lib / blame.tcl
index a911c3c77deff7a01419cccc7c4e69905d4ceb7b..eb61374d2db79a1199d455dfdda85e2d063bf1f6 100644 (file)
@@ -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
@@ -65,7 +58,7 @@ field tooltip_t         {} ; # Text widget in $tooltip_wm
 field tooltip_timer     {} ; # Current timer event for our tooltip
 field tooltip_commit    {} ; # Commit(s) in tooltip
 
-constructor new {i_commit i_path} {
+constructor new {i_commit i_path i_jump} {
        global cursor_ptr
        variable active_color
        variable group_colors
@@ -80,6 +73,7 @@ constructor new {i_commit i_path} {
        label $w.header.commit_l \
                -text [mc "Commit:"] \
                -background gold \
+               -foreground black \
                -anchor w \
                -justify left
        set w_back $w.header.commit_b
@@ -89,6 +83,7 @@ constructor new {i_commit i_path} {
                -relief flat \
                -state disabled \
                -background gold \
+               -foreground black \
                -activebackground gold
        bind $w_back <Button-1> "
                if {\[$w_back cget -state\] eq {normal}} {
@@ -98,16 +93,19 @@ constructor new {i_commit i_path} {
        label $w.header.commit \
                -textvariable @commit \
                -background gold \
+               -foreground black \
                -anchor w \
                -justify left
        label $w.header.path_l \
                -text [mc "File:"] \
                -background gold \
+               -foreground black \
                -anchor w \
                -justify left
        set w_path $w.header.path
        label $w_path \
                -background gold \
+               -foreground black \
                -anchor w \
                -justify left
        pack $w.header.commit_l -side left
@@ -135,7 +133,9 @@ constructor new {i_commit i_path} {
                -takefocus 0 \
                -highlightthickness 0 \
                -padx 0 -pady 0 \
-               -background white -borderwidth 0 \
+               -background white \
+               -foreground black \
+               -borderwidth 0 \
                -state disabled \
                -wrap none \
                -height 40 \
@@ -148,7 +148,9 @@ constructor new {i_commit i_path} {
                -takefocus 0 \
                -highlightthickness 0 \
                -padx 0 -pady 0 \
-               -background white -borderwidth 0 \
+               -background white \
+               -foreground black \
+               -borderwidth 0 \
                -state disabled \
                -wrap none \
                -height 40 \
@@ -166,7 +168,9 @@ constructor new {i_commit i_path} {
                -takefocus 0 \
                -highlightthickness 0 \
                -padx 0 -pady 0 \
-               -background white -borderwidth 0 \
+               -background white \
+               -foreground black \
+               -borderwidth 0 \
                -state disabled \
                -wrap none \
                -height 40 \
@@ -184,7 +188,9 @@ constructor new {i_commit i_path} {
                -takefocus 0 \
                -highlightthickness 0 \
                -padx 0 -pady 0 \
-               -background white -borderwidth 0 \
+               -background white \
+               -foreground black \
+               -borderwidth 0 \
                -state disabled \
                -wrap none \
                -height 40 \
@@ -213,7 +219,9 @@ constructor new {i_commit i_path} {
 
        set w_cviewer $w.file_pane.cm.t
        text $w_cviewer \
-               -background white -borderwidth 0 \
+               -background white \
+               -foreground black \
+               -borderwidth 0 \
                -state disabled \
                -wrap none \
                -height 10 \
@@ -248,6 +256,22 @@ constructor new {i_commit i_path} {
        $w.ctxm add command \
                -label [mc "Copy Commit"] \
                -command [cb _copycommit]
+       $w.ctxm add separator
+       menu $w.ctxm.enc
+       build_encoding_menu $w.ctxm.enc [cb _setencoding]
+       $w.ctxm add cascade \
+               -label [mc "Encoding"] \
+               -menu $w.ctxm.enc
+       $w.ctxm add command \
+               -label [mc "Do Full Copy Detection"] \
+               -command [cb _fullcopyblame]
+       $w.ctxm add separator
+       $w.ctxm add command \
+               -label [mc "Show History Context"] \
+               -command [cb _gitkcommit]
+       $w.ctxm add command \
+               -label [mc "Blame Parent Commit"] \
+               -command [cb _blameparent]
 
        foreach i $w_columns {
                for {set g 0} {$g < [llength $group_colors]} {incr g} {
@@ -318,7 +342,18 @@ constructor new {i_commit i_path} {
        bind $w.file_pane <Configure> \
        "if {{$w.file_pane} eq {%W}} {[cb _resize %h]}"
 
-       _load $this {}
+       wm protocol $top WM_DELETE_WINDOW "destroy $top"
+       bind $top <Destroy> [cb _kill]
+
+       _load $this $i_jump
+}
+
+method _kill {} {
+       if {$current_fd ne {}} {
+               kill_file_process $current_fd
+               catch {close $current_fd}
+               set current_fd {}
+       }
 }
 
 method _load {jump} {
@@ -327,10 +362,7 @@ method _load {jump} {
        _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 {
                        $i conf -state normal
@@ -374,7 +406,10 @@ method _load {jump} {
        } else {
                set fd [git_read cat-file blob "$commit:$path"]
        }
-       fconfigure $fd -blocking 0 -translation lf -encoding binary
+       fconfigure $fd \
+               -blocking 0 \
+               -translation lf \
+               -encoding [get_path_encoding $path]
        fileevent $fd readable [cb _read_file $fd $jump]
        set current_fd $fd
 }
@@ -483,7 +518,7 @@ method _exec_blame {cur_w cur_d options cur_s} {
        }
        lappend options -- $path
        set fd [eval git_read --nice blame $options]
-       fconfigure $fd -blocking 0 -translation lf -encoding binary
+       fconfigure $fd -blocking 0 -translation lf -encoding utf-8
        fileevent $fd readable [cb _read_blame $fd $cur_w $cur_d]
        set current_fd $fd
        set blame_lines 0
@@ -496,7 +531,6 @@ 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}
@@ -669,6 +703,18 @@ 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..."]
@@ -681,29 +727,113 @@ 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
 }
 
+method _setencoding {enc} {
+       force_path_encoding $path $enc
+       _load $this [list \
+               $highlight_column \
+               $highlight_line \
+               [lindex [$w_file xview] 0] \
+               [lindex [$w_file yview] 0] \
+               ]
+}
+
 method _load_commit {cur_w cur_d pos} {
        upvar #0 $cur_d line_data
        set lno [lindex [split [$cur_w index $pos] .] 0]
        set dat [lindex $line_data $lno]
        if {$dat ne {}} {
-               lappend history [list \
-                       $commit $path \
-                       $highlight_column \
-                       $highlight_line \
-                       [lindex [$w_file xview] 0] \
-                       [lindex [$w_file yview] 0] \
-                       ]
-               set commit [lindex $dat 0]
-               set path   [lindex $dat 1]
-               _load $this [list [lindex $dat 2]]
+               _load_new_commit $this  \
+                       [lindex $dat 0] \
+                       [lindex $dat 1] \
+                       [list [lindex $dat 2]]
        }
 }
 
+method _load_new_commit {new_commit new_path jump} {
+       lappend history [list \
+               $commit $path \
+               $highlight_column \
+               $highlight_line \
+               [lindex [$w_file xview] 0] \
+               [lindex [$w_file yview] 0] \
+               ]
+
+       set commit $new_commit
+       set path   $new_path
+       _load $this $jump
+}
+
 method _showcommit {cur_w lno} {
        global repo_config
        variable active_color
@@ -771,12 +901,6 @@ method _showcommit {cur_w lno} {
                                set enc [tcl_encoding $enc]
                                if {$enc ne {}} {
                                        set msg [encoding convertfrom $enc $msg]
-                                       set author_name [encoding convertfrom $enc $author_name]
-                                       set committer_name [encoding convertfrom $enc $committer_name]
-                                       set header($cmit,author) $author_name
-                                       set header($cmit,committer) $committer_name
-                                       set header($cmit,summary) \
-                                       [encoding convertfrom $enc $header($cmit,summary)]
                                }
                                set msg [string trim $msg]
                        }
@@ -809,10 +933,14 @@ method _showcommit {cur_w lno} {
        }
 }
 
-method _copycommit {} {
+method _get_click_amov_info {} {
        set pos @$::cursorX,$::cursorY
        set lno [lindex [split [$::cursorW index $pos] .] 0]
-       set dat [lindex $amov_data $lno]
+       return [lindex $amov_data $lno]
+}
+
+method _copycommit {} {
+       set dat [_get_click_amov_info $this]
        if {$dat ne {}} {
                clipboard clear
                clipboard append \
@@ -822,6 +950,147 @@ method _copycommit {} {
        }
 }
 
+method _format_offset_date {base offset} {
+       set exval [expr {$base + $offset*24*60*60}]
+       return [clock format $exval -format {%Y-%m-%d}]
+}
+
+method _gitkcommit {} {
+       global nullid
+
+       set dat [_get_click_amov_info $this]
+       if {$dat ne {}} {
+               set cmit [lindex $dat 0]
+
+               # If the line belongs to the working copy, use HEAD instead
+               if {$cmit eq $nullid} {
+                       if {[catch {set cmit [git rev-parse --verify HEAD]} err]} {
+                               error_popup [strcat [mc "Cannot find HEAD commit:"] "\n\n$err"]
+                               return;
+                       }
+               }
+
+               set radius [get_config gui.blamehistoryctx]
+               set cmdline [list --select-commit=$cmit]
+
+                if {$radius > 0} {
+                       set author_time {}
+                       set committer_time {}
+
+                       catch {set author_time $header($cmit,author-time)}
+                       catch {set committer_time $header($cmit,committer-time)}
+
+                       if {$committer_time eq {}} {
+                               set committer_time $author_time
+                       }
+
+                       set after_time [_format_offset_date $this $committer_time [expr {-$radius}]]
+                       set before_time [_format_offset_date $this $committer_time $radius]
+
+                       lappend cmdline --after=$after_time --before=$before_time
+               }
+
+               lappend cmdline $cmit
+
+               set base_rev "HEAD"
+               if {$commit ne {}} {
+                       set base_rev $commit
+               }
+
+               if {$base_rev ne $cmit} {
+                       lappend cmdline $base_rev
+               }
+
+               do_gitk $cmdline
+       }
+}
+
+method _blameparent {} {
+       global nullid
+
+       set dat [_get_click_amov_info $this]
+       if {$dat ne {}} {
+               set cmit [lindex $dat 0]
+               set new_path [lindex $dat 1]
+
+               # Allow using Blame Parent on lines modified in the working copy
+               if {$cmit eq $nullid} {
+                       set parent_ref "HEAD"
+               } else {
+                       set parent_ref "$cmit^"
+               }
+               if {[catch {set cparent [git rev-parse --verify $parent_ref]} err]} {
+                       error_popup [strcat [mc "Cannot find parent commit:"] "\n\n$err"]
+                       return;
+               }
+
+               _kill $this
+
+               # Generate a diff between the commit and its parent,
+               # and use the hunks to update the line number.
+               # Request zero context to simplify calculations.
+               if {$cmit eq $nullid} {
+                       set diffcmd [list diff-index --unified=0 $cparent -- $new_path]
+               } else {
+                       set diffcmd [list diff-tree --unified=0 $cparent $cmit -- $new_path]
+               }
+               if {[catch {set fd [eval git_read $diffcmd]} err]} {
+                       $status stop [mc "Unable to display parent"]
+                       error_popup [strcat [mc "Error loading diff:"] "\n\n$err"]
+                       return
+               }
+
+               set r_orig_line [lindex $dat 2]
+
+               fconfigure $fd \
+                       -blocking 0 \
+                       -encoding binary \
+                       -translation binary
+               fileevent $fd readable [cb _read_diff_load_commit \
+                       $fd $cparent $new_path $r_orig_line]
+               set current_fd $fd
+       }
+}
+
+method _read_diff_load_commit {fd cparent new_path tline} {
+       if {$fd ne $current_fd} {
+               catch {close $fd}
+               return
+       }
+
+       while {[gets $fd line] >= 0} {
+               if {[regexp {^@@ -(\d+)(,(\d+))? \+(\d+)(,(\d+))? @@} $line line \
+                       old_line osz old_size new_line nsz new_size]} {
+
+                       if {$osz eq {}} { set old_size 1 }
+                       if {$nsz eq {}} { set new_size 1 }
+
+                       if {$new_line <= $tline} {
+                               if {[expr {$new_line + $new_size}] > $tline} {
+                                       # Target line within the hunk
+                                       set line_shift [expr {
+                                               ($new_size-$old_size)*($tline-$new_line)/$new_size
+                                               }]
+                               } else {
+                                       set line_shift [expr {$new_size-$old_size}]
+                               }
+
+                               set r_orig_line [expr {$r_orig_line - $line_shift}]
+                       }
+               }
+       }
+
+       if {[eof $fd]} {
+               close $fd;
+               set current_fd {}
+
+               _load_new_commit $this  \
+                       $cparent        \
+                       $new_path       \
+                       [list $r_orig_line]
+       }
+} ifdeleted { catch {close $fd} }
+
 method _show_tooltip {cur_w pos} {
        if {$tooltip_wm ne {}} {
                _open_tooltip $this $cur_w
@@ -905,7 +1174,7 @@ method _open_tooltip {cur_w} {
                set author_time {}
                catch {set author_name $header($cmit,author)}
                catch {set summary     $header($cmit,summary)}
-               catch {set author_time [foramt_date $header($cmit,author-time)]}
+               catch {set author_time [format_date $header($cmit,author-time)]}
 
                $tooltip_t insert end [strcat [mc "Originally By:"] "\n"] section_header
                $tooltip_t insert end "commit $cmit\n"