git-commit-vandalism/lib/blame.tcl
Shawn O. Pearce c74b6c66f0 git-gui: Convert browser, console to "class" format
Now that we have a slightly easier method of working with per-widget
data we should make use of that technique in our browser and console
meta-widgets, as both have a decent amount of information that they
store on a per-widget basis and our current approach of handling
it is difficult to follow.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2007-05-08 21:38:54 -04:00

410 lines
11 KiB
Tcl

# git-gui blame viewer
# Copyright (C) 2006, 2007 Shawn Pearce
set next_browser_id 0
proc show_blame {commit path} {
global next_browser_id blame_status blame_data
if {[winfo ismapped .]} {
set w .browser[incr next_browser_id]
set tl $w
toplevel $w
} else {
set w {}
set tl .
}
set blame_status($w) {Loading current file content...}
label $w.path -text "$commit:$path" \
-anchor w \
-justify left \
-borderwidth 1 \
-relief sunken \
-font font_uibold
pack $w.path -side top -fill x
frame $w.out
text $w.out.loaded_t \
-background white -borderwidth 0 \
-state disabled \
-wrap none \
-height 40 \
-width 1 \
-font font_diff
$w.out.loaded_t tag conf annotated -background grey
text $w.out.linenumber_t \
-background white -borderwidth 0 \
-state disabled \
-wrap none \
-height 40 \
-width 5 \
-font font_diff
$w.out.linenumber_t tag conf linenumber -justify right
text $w.out.file_t \
-background white -borderwidth 0 \
-state disabled \
-wrap none \
-height 40 \
-width 80 \
-xscrollcommand [list $w.out.sbx set] \
-font font_diff
scrollbar $w.out.sbx -orient h -command [list $w.out.file_t xview]
scrollbar $w.out.sby -orient v \
-command [list scrollbar2many [list \
$w.out.loaded_t \
$w.out.linenumber_t \
$w.out.file_t \
] yview]
grid \
$w.out.linenumber_t \
$w.out.loaded_t \
$w.out.file_t \
$w.out.sby \
-sticky nsew
grid conf $w.out.sbx -column 2 -sticky we
grid columnconfigure $w.out 2 -weight 1
grid rowconfigure $w.out 0 -weight 1
pack $w.out -fill both -expand 1
label $w.status -textvariable blame_status($w) \
-anchor w \
-justify left \
-borderwidth 1 \
-relief sunken
pack $w.status -side bottom -fill x
frame $w.cm
text $w.cm.t \
-background white -borderwidth 0 \
-state disabled \
-wrap none \
-height 10 \
-width 80 \
-xscrollcommand [list $w.cm.sbx set] \
-yscrollcommand [list $w.cm.sby set] \
-font font_diff
scrollbar $w.cm.sbx -orient h -command [list $w.cm.t xview]
scrollbar $w.cm.sby -orient v -command [list $w.cm.t yview]
pack $w.cm.sby -side right -fill y
pack $w.cm.sbx -side bottom -fill x
pack $w.cm.t -expand 1 -fill both
pack $w.cm -side bottom -fill x
menu $w.ctxm -tearoff 0
$w.ctxm add command -label "Copy Commit" \
-command "blame_copycommit $w \$cursorW @\$cursorX,\$cursorY"
foreach i [list \
$w.out.loaded_t \
$w.out.linenumber_t \
$w.out.file_t] {
$i tag conf in_sel \
-background [$i cget -foreground] \
-foreground [$i cget -background]
$i conf -yscrollcommand \
[list many2scrollbar [list \
$w.out.loaded_t \
$w.out.linenumber_t \
$w.out.file_t \
] yview $w.out.sby]
bind $i <Button-1> "
blame_click {$w} \\
$w.cm.t \\
$w.out.linenumber_t \\
$w.out.file_t \\
$i @%x,%y
focus $i
"
bind_button3 $i "
set cursorX %x
set cursorY %y
set cursorW %W
tk_popup $w.ctxm %X %Y
"
}
foreach i [list \
$w.out.loaded_t \
$w.out.linenumber_t \
$w.out.file_t \
$w.cm.t] {
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}
bind $i <Key-Right> {catch {%W xview scroll 1 units};break}
bind $i <Key-k> {catch {%W yview scroll -1 units};break}
bind $i <Key-j> {catch {%W yview scroll 1 units};break}
bind $i <Key-h> {catch {%W xview scroll -1 units};break}
bind $i <Key-l> {catch {%W xview scroll 1 units};break}
bind $i <Control-Key-b> {catch {%W yview scroll -1 pages};break}
bind $i <Control-Key-f> {catch {%W yview scroll 1 pages};break}
}
bind $w.cm.t <Button-1> "focus $w.cm.t"
bind $tl <Visibility> "focus $tl"
bind $tl <Destroy> "
array unset blame_status {$w}
array unset blame_data $w,*
"
wm title $tl "[appname] ([reponame]): File Viewer"
set blame_data($w,commit_count) 0
set blame_data($w,commit_list) {}
set blame_data($w,total_lines) 0
set blame_data($w,blame_lines) 0
set blame_data($w,highlight_commit) {}
set blame_data($w,highlight_line) -1
set cmd [list git cat-file blob "$commit:$path"]
set fd [open "| $cmd" r]
fconfigure $fd -blocking 0 -translation lf -encoding binary
fileevent $fd readable [list read_blame_catfile \
$fd $w $commit $path \
$w.cm.t $w.out.loaded_t $w.out.linenumber_t $w.out.file_t]
}
proc read_blame_catfile {fd w commit path w_cmit w_load w_line w_file} {
global blame_status blame_data
if {![winfo exists $w_file]} {
catch {close $fd}
return
}
set n $blame_data($w,total_lines)
$w_load conf -state normal
$w_line conf -state normal
$w_file conf -state normal
while {[gets $fd line] >= 0} {
regsub "\r\$" $line {} line
incr n
$w_load insert end "\n"
$w_line insert end "$n\n" linenumber
$w_file insert end "$line\n"
}
$w_load conf -state disabled
$w_line conf -state disabled
$w_file conf -state disabled
set blame_data($w,total_lines) $n
if {[eof $fd]} {
close $fd
blame_incremental_status $w
set cmd [list git blame -M -C --incremental]
lappend cmd $commit -- $path
set fd [open "| $cmd" r]
fconfigure $fd -blocking 0 -translation lf -encoding binary
fileevent $fd readable [list read_blame_incremental $fd $w \
$w_load $w_cmit $w_line $w_file]
}
}
proc read_blame_incremental {fd w w_load w_cmit w_line w_file} {
global blame_status blame_data
if {![winfo exists $w_file]} {
catch {close $fd}
return
}
while {[gets $fd line] >= 0} {
if {[regexp {^([a-z0-9]{40}) (\d+) (\d+) (\d+)$} $line line \
cmit original_line final_line line_count]} {
set blame_data($w,commit) $cmit
set blame_data($w,original_line) $original_line
set blame_data($w,final_line) $final_line
set blame_data($w,line_count) $line_count
if {[catch {set g $blame_data($w,$cmit,order)}]} {
$w_line tag conf g$cmit
$w_file tag conf g$cmit
$w_line tag raise in_sel
$w_file tag raise in_sel
$w_file tag raise sel
set blame_data($w,$cmit,order) $blame_data($w,commit_count)
incr blame_data($w,commit_count)
lappend blame_data($w,commit_list) $cmit
}
} elseif {[string match {filename *} $line]} {
set file [string range $line 9 end]
set n $blame_data($w,line_count)
set lno $blame_data($w,final_line)
set cmit $blame_data($w,commit)
while {$n > 0} {
if {[catch {set g g$blame_data($w,line$lno,commit)}]} {
$w_load tag add annotated $lno.0 "$lno.0 lineend + 1c"
} else {
$w_line tag remove g$g $lno.0 "$lno.0 lineend + 1c"
$w_file tag remove g$g $lno.0 "$lno.0 lineend + 1c"
}
set blame_data($w,line$lno,commit) $cmit
set blame_data($w,line$lno,file) $file
$w_line tag add g$cmit $lno.0 "$lno.0 lineend + 1c"
$w_file tag add g$cmit $lno.0 "$lno.0 lineend + 1c"
if {$blame_data($w,highlight_line) == -1} {
if {[lindex [$w_file yview] 0] == 0} {
$w_file see $lno.0
blame_showcommit $w $w_cmit $w_line $w_file $lno
}
} elseif {$blame_data($w,highlight_line) == $lno} {
blame_showcommit $w $w_cmit $w_line $w_file $lno
}
incr n -1
incr lno
incr blame_data($w,blame_lines)
}
set hc $blame_data($w,highlight_commit)
if {$hc ne {}
&& [expr {$blame_data($w,$hc,order) + 1}]
== $blame_data($w,$cmit,order)} {
blame_showcommit $w $w_cmit $w_line $w_file \
$blame_data($w,highlight_line)
}
} elseif {[regexp {^([a-z-]+) (.*)$} $line line header data]} {
set blame_data($w,$blame_data($w,commit),$header) $data
}
}
if {[eof $fd]} {
close $fd
set blame_status($w) {Annotation complete.}
} else {
blame_incremental_status $w
}
}
proc blame_incremental_status {w} {
global blame_status blame_data
set have $blame_data($w,blame_lines)
set total $blame_data($w,total_lines)
set pdone 0
if {$total} {set pdone [expr {100 * $have / $total}]}
set blame_status($w) [format \
"Loading annotations... %i of %i lines annotated (%2i%%)" \
$have $total $pdone]
}
proc blame_click {w w_cmit w_line w_file cur_w pos} {
set lno [lindex [split [$cur_w index $pos] .] 0]
if {$lno eq {}} return
$w_line tag remove in_sel 0.0 end
$w_file tag remove in_sel 0.0 end
$w_line tag add in_sel $lno.0 "$lno.0 + 1 line"
$w_file tag add in_sel $lno.0 "$lno.0 + 1 line"
blame_showcommit $w $w_cmit $w_line $w_file $lno
}
set blame_colors {
#ff4040
#ff40ff
#4040ff
}
proc blame_showcommit {w w_cmit w_line w_file lno} {
global blame_colors blame_data repo_config
set cmit $blame_data($w,highlight_commit)
if {$cmit ne {}} {
set idx $blame_data($w,$cmit,order)
set i 0
foreach c $blame_colors {
set h [lindex $blame_data($w,commit_list) [expr {$idx - 1 + $i}]]
$w_line tag conf g$h -background white
$w_file tag conf g$h -background white
incr i
}
}
$w_cmit conf -state normal
$w_cmit delete 0.0 end
if {[catch {set cmit $blame_data($w,line$lno,commit)}]} {
set cmit {}
$w_cmit insert end "Loading annotation..."
} else {
set idx $blame_data($w,$cmit,order)
set i 0
foreach c $blame_colors {
set h [lindex $blame_data($w,commit_list) [expr {$idx - 1 + $i}]]
$w_line tag conf g$h -background $c
$w_file tag conf g$h -background $c
incr i
}
set author_name {}
set author_email {}
set author_time {}
catch {set author_name $blame_data($w,$cmit,author)}
catch {set author_email $blame_data($w,$cmit,author-mail)}
catch {set author_time [clock format $blame_data($w,$cmit,author-time)]}
set committer_name {}
set committer_email {}
set committer_time {}
catch {set committer_name $blame_data($w,$cmit,committer)}
catch {set committer_email $blame_data($w,$cmit,committer-mail)}
catch {set committer_time [clock format $blame_data($w,$cmit,committer-time)]}
if {[catch {set msg $blame_data($w,$cmit,message)}]} {
set msg {}
catch {
set fd [open "| git cat-file commit $cmit" r]
fconfigure $fd -encoding binary -translation lf
if {[catch {set enc $repo_config(i18n.commitencoding)}]} {
set enc utf-8
}
while {[gets $fd line] > 0} {
if {[string match {encoding *} $line]} {
set enc [string tolower [string range $line 9 end]]
}
}
set msg [encoding convertfrom $enc [read $fd]]
set msg [string trim $msg]
close $fd
set author_name [encoding convertfrom $enc $author_name]
set committer_name [encoding convertfrom $enc $committer_name]
set blame_data($w,$cmit,author) $author_name
set blame_data($w,$cmit,committer) $committer_name
}
set blame_data($w,$cmit,message) $msg
}
$w_cmit insert end "commit $cmit\n"
$w_cmit insert end "Author: $author_name $author_email $author_time\n"
$w_cmit insert end "Committer: $committer_name $committer_email $committer_time\n"
$w_cmit insert end "Original File: [escape_path $blame_data($w,line$lno,file)]\n"
$w_cmit insert end "\n"
$w_cmit insert end $msg
}
$w_cmit conf -state disabled
set blame_data($w,highlight_line) $lno
set blame_data($w,highlight_commit) $cmit
}
proc blame_copycommit {w i pos} {
global blame_data
set lno [lindex [split [$i index $pos] .] 0]
if {![catch {set commit $blame_data($w,line$lno,commit)}]} {
clipboard clear
clipboard append \
-format STRING \
-type STRING \
-- $commit
}
}