git-gui: Run blame twice on the same file and display both outputs
[gitweb.git] / lib / blame.tcl
index d8d27c9cbf31fda84024bd4060a795c7d720ba6e..54a1ce5b45b4d65472412e6013c20af514e02ceb 100644 (file)
@@ -17,9 +17,10 @@ field w_back     ; # our back button
 field w_path     ; # label showing the current file path
 field w_columns  ; # list of all column widgets in the viewer
 field w_line     ; # text column: all line numbers
-field w_cgrp     ; # text column: abbreviated commit SHA-1s
+field w_amov     ; # text column: annotations + move tracking
+field w_asim     ; # text column: annotations (simple computation)
 field w_file     ; # text column: actual file data
-field w_cmit     ; # pane showing commit message
+field w_cviewer  ; # pane showing commit message
 field status     ; # text variable bound to status bar
 field old_height ; # last known height of $w.file_pane
 
@@ -39,13 +40,15 @@ field path                 ; # input filename to view in $commit
 
 field current_fd        {} ; # background process running
 field highlight_line    -1 ; # current line selected
+field highlight_column  {} ; # current commit column selected
 field highlight_commit  {} ; # sha1 of commit selected
 field old_bgcolor       {} ; # background of current selection
 
 field total_lines       0  ; # total length of file
 field blame_lines       0  ; # number of lines computed
 field have_commit          ; # array commit -> 1
-field line_data            ; # list of {commit origfile origline}
+field amov_data            ; # list of {commit origfile origline}
+field asim_data            ; # list of {commit origfile origline}
 
 field r_commit             ; # commit currently being parsed
 field r_orig_line          ; # original line number
@@ -133,8 +136,26 @@ constructor new {i_commit i_path} {
                -font font_diff
        $w_line tag conf linenumber -justify right -rmargin 5
 
-       set w_cgrp $w.file_pane.out.commit_t
-       text $w_cgrp \
+       set w_amov $w.file_pane.out.amove_t
+       text $w_amov \
+               -takefocus 0 \
+               -highlightthickness 0 \
+               -padx 0 -pady 0 \
+               -background white -borderwidth 0 \
+               -state disabled \
+               -wrap none \
+               -height 40 \
+               -width 5 \
+               -font font_diff
+       $w_amov tag conf author_abbr -justify right -rmargin 5
+       $w_amov tag conf curr_commit
+       $w_amov tag conf prior_commit -foreground blue -underline 1
+       $w_amov tag bind prior_commit \
+               <Button-1> \
+               "[cb _load_commit $w_amov @amov_data @%x,%y];break"
+
+       set w_asim $w.file_pane.out.asimple_t
+       text $w_asim \
                -takefocus 0 \
                -highlightthickness 0 \
                -padx 0 -pady 0 \
@@ -144,13 +165,12 @@ constructor new {i_commit i_path} {
                -height 40 \
                -width 4 \
                -font font_diff
-       $w_cgrp tag conf curr_commit
-       $w_cgrp tag conf prior_commit \
-               -foreground blue \
-               -underline 1
-       $w_cgrp tag bind prior_commit \
+       $w_asim tag conf author_abbr -justify right
+       $w_asim tag conf curr_commit
+       $w_asim tag conf prior_commit -foreground blue -underline 1
+       $w_asim tag bind prior_commit \
                <Button-1> \
-               "[cb _load_commit @%x,%y];break"
+               "[cb _load_commit $w_asim @asim_data @%x,%y];break"
 
        set w_file $w.file_pane.out.file_t
        text $w_file \
@@ -165,7 +185,7 @@ constructor new {i_commit i_path} {
                -xscrollcommand [list $w.file_pane.out.sbx set] \
                -font font_diff
 
-       set w_columns [list $w_cgrp $w_line $w_file]
+       set w_columns [list $w_amov $w_asim $w_line $w_file]
 
        scrollbar $w.file_pane.out.sbx \
                -orient h \
@@ -184,8 +204,8 @@ constructor new {i_commit i_path} {
                -weight 1
        grid rowconfigure $w.file_pane.out 0 -weight 1
 
-       set w_cmit $w.file_pane.cm.t
-       text $w_cmit \
+       set w_cviewer $w.file_pane.cm.t
+       text $w_cviewer \
                -background white -borderwidth 0 \
                -state disabled \
                -wrap none \
@@ -194,23 +214,26 @@ constructor new {i_commit i_path} {
                -xscrollcommand [list $w.file_pane.cm.sbx set] \
                -yscrollcommand [list $w.file_pane.cm.sby set] \
                -font font_diff
-       $w_cmit tag conf header_key \
+       $w_cviewer tag conf still_loading \
+               -font font_uiitalic \
+               -justify center
+       $w_cviewer tag conf header_key \
                -tabs {3c} \
                -background $active_color \
                -font font_uibold
-       $w_cmit tag conf header_val \
+       $w_cviewer tag conf header_val \
                -background $active_color \
                -font font_ui
-       $w_cmit tag raise sel
+       $w_cviewer tag raise sel
        scrollbar $w.file_pane.cm.sbx \
                -orient h \
-               -command [list $w_cmit xview]
+               -command [list $w_cviewer xview]
        scrollbar $w.file_pane.cm.sby \
                -orient v \
-               -command [list $w_cmit yview]
+               -command [list $w_cviewer yview]
        pack $w.file_pane.cm.sby -side right -fill y
        pack $w.file_pane.cm.sbx -side bottom -fill x
-       pack $w_cmit -expand 1 -fill both
+       pack $w_cviewer -expand 1 -fill both
 
        frame $w.status \
                -borderwidth 1 \
@@ -247,7 +270,7 @@ constructor new {i_commit i_path} {
                "
        }
 
-       foreach i [concat $w_columns $w_cmit] {
+       foreach i [concat $w_columns $w_cviewer] {
                bind $i <Key-Up>        {catch {%W yview scroll -1 units};break}
                bind $i <Key-Down>      {catch {%W yview scroll  1 units};break}
                bind $i <Key-Left>      {catch {%W xview scroll -1 units};break}
@@ -260,7 +283,7 @@ constructor new {i_commit i_path} {
                bind $i <Control-Key-f> {catch {%W yview scroll  1 pages};break}
        }
 
-       bind $w_cmit <Button-1> [list focus $w_cmit]
+       bind $w_cviewer <Button-1> [list focus $w_cviewer]
        bind $top <Visibility> [list focus $top]
        bind $w_file <Destroy> [list delete_this $this]
 
@@ -309,9 +332,9 @@ method _load {} {
                }
 
                set highlight_line -1
+               set highlight_column {}
                set highlight_commit {}
                set total_lines 0
-               set blame_lines 0
                array unset have_commit
        }
 
@@ -339,7 +362,8 @@ method _load {} {
        # we use only 1 based lines, as that matches both with
        # git-blame output and with Tk's text widget.
        #
-       set line_data [list [list]]
+       set amov_data [list [list]]
+       set asim_data [list [list]]
 
        set status "Loading $commit:[escape_path $path]..."
        $w_path conf -text [escape_path $path]
@@ -370,6 +394,8 @@ method _history_menu {} {
 
                if {[regexp {^[0-9a-f]{40}$} $c]} {
                        set t [string range $c 0 8]...
+               } elseif {$c eq {}} {
+                       set t {Working Directory}
                } else {
                        set t $c
                }
@@ -404,7 +430,8 @@ method _read_file {fd} {
        while {[gets $fd line] >= 0} {
                regsub "\r\$" $line {} line
                incr total_lines
-               lappend line_data {}
+               lappend amov_data {}
+               lappend asim_data {}
 
                if {$total_lines > 1} {
                        foreach i $w_columns {$i insert end "\n"}
@@ -423,29 +450,37 @@ method _read_file {fd} {
 
        if {[eof $fd]} {
                close $fd
-
-               _status $this
-               set cmd {nice git blame -M -C --incremental}
-               if {$commit eq {}} {
-                       lappend cmd --contents $path
-               } else {
-                       lappend cmd $commit
-               }
-               lappend cmd -- $path
-               set fd [open "| $cmd" r]
-               fconfigure $fd -blocking 0 -translation lf -encoding binary
-               fileevent $fd readable [cb _read_blame $fd]
-               set current_fd $fd
+               _exec_blame $this $w_asim @asim_data [list] {}
        }
 } ifdeleted { catch {close $fd} }
 
-method _read_blame {fd} {
+method _exec_blame {cur_w cur_d options cur_s} {
+       set cmd [list nice git blame]
+       set cmd [concat $cmd $options]
+       lappend cmd --incremental
+       if {$commit eq {}} {
+               lappend cmd --contents $path
+       } else {
+               lappend cmd $commit
+       }
+       lappend cmd -- $path
+       set fd [open "| $cmd" r]
+       fconfigure $fd -blocking 0 -translation lf -encoding binary
+       fileevent $fd readable [cb _read_blame $fd $cur_w $cur_d $cur_s]
+       set current_fd $fd
+       set blame_lines 0
+       _status $this $cur_s
+}
+
+method _read_blame {fd cur_w cur_d cur_s} {
+       upvar #0 $cur_d line_data
+
        if {$fd ne $current_fd} {
                catch {close $fd}
                return
        }
 
-       $w_cgrp conf -state normal
+       $cur_w conf -state normal
        while {[gets $fd line] >= 0} {
                if {[regexp {^([a-z0-9]{40}) (\d+) (\d+) (\d+)$} $line line \
                        cmit original_line final_line line_count]} {
@@ -477,7 +512,7 @@ method _read_blame {fd} {
                                set commit_type curr_commit
                        } else {
                                set commit_type prior_commit
-                               set commit_abbr [string range $cmit 0 4]
+                               set commit_abbr [string range $cmit 0 3]
                        }
 
                        set author_abbr {}
@@ -495,9 +530,6 @@ method _read_blame {fd} {
                                set author_abbr { |}
                        } else {
                                set author_abbr [string range $author_abbr 0 3]
-                               while {[string length $author_abbr] < 4} {
-                                       set author_abbr " $author_abbr"
-                               }
                        }
                        unset a_name
 
@@ -520,26 +552,28 @@ method _read_blame {fd} {
                                }
                                lset line_data $lno [list $cmit $file]
 
-                               $w_cgrp delete $lno.0 "$lno.0 lineend"
+                               $cur_w delete $lno.0 "$lno.0 lineend"
                                if {$lno == $first_lno} {
-                                       $w_cgrp insert $lno.0 $commit_abbr $commit_type
+                                       $cur_w insert $lno.0 $commit_abbr $commit_type
                                } elseif {$lno == [expr {$first_lno + 1}]} {
-                                       $w_cgrp insert $lno.0 $author_abbr
+                                       $cur_w insert $lno.0 $author_abbr author_abbr
                                } else {
-                                       $w_cgrp insert $lno.0 { |}
+                                       $cur_w insert $lno.0 { |}
                                }
 
                                foreach i $w_columns {
                                        $i tag add g$cmit $lno.0 $lno_e
                                }
 
-                               if {$highlight_line == -1} {
-                                       if {[lindex [$w_file yview] 0] == 0} {
+                               if {$highlight_column eq $cur_w} {
+                                       if {$highlight_line == -1
+                                        && [lindex [$w_file yview] 0] == 0} {
                                                $w_file see $lno.0
-                                               _showcommit $this $lno
+                                               set highlight_line $lno
+                                       }
+                                       if {$highlight_line == $lno} {
+                                               _showcommit $this $cur_w $lno
                                        }
-                               } elseif {$highlight_line == $lno} {
-                                       _showcommit $this $lno
                                }
 
                                incr n -1
@@ -551,14 +585,14 @@ method _read_blame {fd} {
                           $cmit eq [lindex $line_data $lno 0]
                        && $file eq [lindex $line_data $lno 1]
                        } {
-                               $w_cgrp delete $lno.0 "$lno.0 lineend"
+                               $cur_w delete $lno.0 "$lno.0 lineend"
 
                                if {$lno == $first_lno} {
-                                       $w_cgrp insert $lno.0 $commit_abbr $commit_type
+                                       $cur_w insert $lno.0 $commit_abbr $commit_type
                                } elseif {$lno == [expr {$first_lno + 1}]} {
-                                       $w_cgrp insert $lno.0 $author_abbr
+                                       $cur_w insert $lno.0 $author_abbr author_abbr
                                } else {
-                                       $w_cgrp insert $lno.0 { |}
+                                       $cur_w insert $lno.0 { |}
                                }
                                incr lno
                        }
@@ -567,38 +601,44 @@ method _read_blame {fd} {
                        set header($r_commit,$key) $data
                }
        }
-       $w_cgrp conf -state disabled
+       $cur_w conf -state disabled
 
        if {[eof $fd]} {
                close $fd
-               set current_fd {}
-               set status {Annotation complete.}
-               destroy $w.status.c
+               if {$cur_w eq $w_asim} {
+                       _exec_blame $this $w_amov @amov_data \
+                               [list -M -C -C] \
+                               { move/copy tracking}
+               } else {
+                       set current_fd {}
+                       set status {Annotation complete.}
+                       destroy $w.status.c
+               }
        } else {
-               _status $this
+               _status $this $cur_s
        }
 } ifdeleted { catch {close $fd} }
 
-method _status {} {
+method _status {cur_s} {
        set have  $blame_lines
        set total $total_lines
        set pdone 0
        if {$total} {set pdone [expr {100 * $have / $total}]}
 
        set status [format \
-               "Loading annotations... %i of %i lines annotated (%2i%%)" \
-               $have $total $pdone]
+               "Loading%s annotations... %i of %i lines annotated (%2i%%)" \
+               $cur_s $have $total $pdone]
        $w.status.c coords bar 0 0 $pdone 20
 }
 
 method _click {cur_w pos} {
        set lno [lindex [split [$cur_w index $pos] .] 0]
-       if {$lno eq {}} return
-       _showcommit $this $lno
+       _showcommit $this $cur_w $lno
 }
 
-method _load_commit {pos} {
-       set lno [lindex [split [$w_cgrp index $pos] .] 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 {}} {
                set commit [lindex $dat 0]
@@ -607,7 +647,7 @@ method _load_commit {pos} {
        }
 }
 
-method _showcommit {lno} {
+method _showcommit {cur_w lno} {
        global repo_config
 
        if {$highlight_commit ne {}} {
@@ -616,13 +656,20 @@ method _showcommit {lno} {
                }
        }
 
-       $w_cmit conf -state normal
-       $w_cmit delete 0.0 end
+       if {$cur_w eq $w_amov} {
+               set dat [lindex $amov_data $lno]
+               set highlight_column $w_amov
+       } else {
+               set dat [lindex $asim_data $lno]
+               set highlight_column $w_asim
+       }
+
+       $w_cviewer conf -state normal
+       $w_cviewer delete 0.0 end
 
-       set dat [lindex $line_data $lno]
        if {$dat eq {}} {
                set cmit {}
-               $w_cmit insert end "Loading annotation..."
+               $w_cviewer insert end "Loading annotation..." still_loading
        } else {
                set cmit [lindex $dat 0]
                set file [lindex $dat 1]
@@ -678,23 +725,23 @@ method _showcommit {lno} {
                        set header($cmit,message) $msg
                }
 
-               $w_cmit insert end "commit $cmit\n" header_key
-               $w_cmit insert end "Author:\t" header_key
-               $w_cmit insert end "$author_name $author_email" header_val
-               $w_cmit insert end "$author_time\n" header_val
+               $w_cviewer insert end "commit $cmit\n" header_key
+               $w_cviewer insert end "Author:\t" header_key
+               $w_cviewer insert end "$author_name $author_email" header_val
+               $w_cviewer insert end "  $author_time\n" header_val
 
-               $w_cmit insert end "Committer:\t" header_key
-               $w_cmit insert end "$committer_name $committer_email" header_val
-               $w_cmit insert end "$committer_time\n" header_val
+               $w_cviewer insert end "Committer:\t" header_key
+               $w_cviewer insert end "$committer_name $committer_email" header_val
+               $w_cviewer insert end "  $committer_time\n" header_val
 
                if {$file ne $path} {
-                       $w_cmit insert end "Original File:\t" header_key
-                       $w_cmit insert end "[escape_path $file]\n" header_val
+                       $w_cviewer insert end "Original File:\t" header_key
+                       $w_cviewer insert end "[escape_path $file]\n" header_val
                }
 
-               $w_cmit insert end "\n$msg"
+               $w_cviewer insert end "\n$msg"
        }
-       $w_cmit conf -state disabled
+       $w_cviewer conf -state disabled
 
        set highlight_line $lno
        set highlight_commit $cmit
@@ -707,7 +754,7 @@ method _showcommit {lno} {
 method _copycommit {} {
        set pos @$::cursorX,$::cursorY
        set lno [lindex [split [$::cursorW index $pos] .] 0]
-       set dat [lindex $line_data $lno]
+       set dat [lindex $amov_data $lno]
        if {$dat ne {}} {
                clipboard clear
                clipboard append \
@@ -719,7 +766,11 @@ method _copycommit {} {
 
 method _show_tooltip {cur_w pos} {
        set lno [lindex [split [$cur_w index $pos] .] 0]
-       set dat [lindex $line_data $lno]
+       if {$cur_w eq $w_amov} {
+               set dat [lindex $amov_data $lno]
+       } else {
+               set dat [lindex $asim_data $lno]
+       }
        if {$dat eq {}} {
                _hide_tooltip $this
                return
@@ -753,7 +804,11 @@ method _open_tooltip {cur_w} {
                [expr {$pos_x - [winfo rootx $cur_w]}] \
                [expr {$pos_y - [winfo rooty $cur_w]}]] ,]
        set lno [lindex [split [$cur_w index $pos] .] 0]
-       set dat [lindex $line_data $lno]
+       if {$cur_w eq $w_amov} {
+               set dat [lindex $amov_data $lno]
+       } else {
+               set dat [lindex $asim_data $lno]
+       }
        set cmit [lindex $dat 0]
        set file [lindex $dat 1]