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-rw-r--r--lib/blame.tcl218
1 files changed, 188 insertions, 30 deletions
diff --git a/lib/blame.tcl b/lib/blame.tcl
index 1223c56..33e8489 100644
--- a/lib/blame.tcl
+++ b/lib/blame.tcl
@@ -3,18 +3,24 @@
class blame {
-field commit ; # input commit to blame
-field path ; # input filename to view in $commit
-
-field w
-field w_line
-field w_cgrp
-field w_load
-field w_file
-field w_cmit
-field status
-field old_height
-
+image create photo ::blame::img_back_arrow -data {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}
+
+field commit ; # input commit to blame
+field path ; # input filename to view in $commit
+field history {}; # viewer history: {commit path}
+
+field w ; # top window in this viewer
+field w_back ; # our back button
+field w_path ; # label showing the current file path
+field w_line ; # text column: all line numbers
+field w_cgrp ; # text column: abbreviated commit SHA-1s
+field w_load ; # text column: loaded indicator
+field w_file ; # text column: actual file data
+field w_cmit ; # pane showing commit message
+field status ; # text variable bound to status bar
+field old_height ; # last known height of $w.file_pane
+
+field current_fd {} ; # background process running
field highlight_line -1 ; # current line selected
field highlight_commit {} ; # sha1 of commit selected
@@ -52,14 +58,42 @@ constructor new {i_commit i_path} {
make_toplevel top w
wm title $top "[appname] ([reponame]): File Viewer"
- set status "Loading $commit:$path..."
- label $w.path -text "$commit:$path" \
+ frame $w.header -background orange
+ label $w.header.commit_l \
+ -text {Commit:} \
+ -background orange \
-anchor w \
- -justify left \
- -borderwidth 1 \
- -relief sunken \
- -font font_uibold
+ -justify left
+ set w_back $w.header.commit_b
+ button $w_back \
+ -command [cb _history_menu] \
+ -image ::blame::img_back_arrow \
+ -borderwidth 0 \
+ -relief flat \
+ -state disabled \
+ -background orange \
+ -activebackground orange
+ label $w.header.commit \
+ -textvariable @commit \
+ -background orange \
+ -anchor w \
+ -justify left
+ label $w.header.path_l \
+ -text {File:} \
+ -background orange \
+ -anchor w \
+ -justify left
+ set w_path $w.header.path
+ label $w_path \
+ -background orange \
+ -anchor w \
+ -justify left
+ pack $w.header.commit_l -side left
+ pack $w_back -side left
+ pack $w.header.commit -side left
+ pack $w_path -fill x -side right
+ pack $w.header.path_l -side right
panedwindow $w.file_pane -orient vertical
frame $w.file_pane.out
@@ -103,6 +137,13 @@ 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 \
+ <Button-1> \
+ "[cb _load_commit @%x,%y];break"
set w_file $w.file_pane.out.file_t
text $w_file \
@@ -171,15 +212,7 @@ constructor new {i_commit i_path} {
-textvariable @status \
-anchor w \
-justify left
- canvas $w.status.c \
- -width 100 \
- -height [expr {int([winfo reqheight $w.status.l] * 0.6)}] \
- -borderwidth 1 \
- -relief groove \
- -highlightt 0
- $w.status.c create rectangle 0 0 0 20 -tags bar -fill navy
pack $w.status.l -side left
- pack $w.status.c -side right
menu $w.ctxm -tearoff 0
$w.ctxm add command \
@@ -238,7 +271,7 @@ constructor new {i_commit i_path} {
bind $top <Visibility> [list focus $top]
bind $w_file <Destroy> [list delete_this $this]
- grid configure $w.path -sticky ew
+ grid configure $w.header -sticky ew
grid configure $w.file_pane -sticky nsew
grid configure $w.status -sticky ew
grid columnconfigure $top 0 -weight 1
@@ -261,6 +294,66 @@ constructor new {i_commit i_path} {
bind $w.file_pane <Configure> \
"if {{$w.file_pane} eq {%W}} {[cb _resize %h]}"
+ _load $this
+}
+
+method _load {} {
+ _hide_tooltip $this
+
+ if {$total_lines != 0 || $current_fd ne {}} {
+ if {$current_fd ne {}} {
+ catch {close $current_fd}
+ set current_fd {}
+ }
+
+ set highlight_line -1
+ set highlight_commit {}
+ set total_lines 0
+ set blame_lines 0
+ set commit_count 0
+ set commit_list {}
+ array unset order
+ array unset line_commit
+ array unset line_file
+
+ $w_load conf -state normal
+ $w_cgrp conf -state normal
+ $w_line conf -state normal
+ $w_file conf -state normal
+
+ $w_load delete 0.0 end
+ $w_cgrp delete 0.0 end
+ $w_line delete 0.0 end
+ $w_file delete 0.0 end
+
+ $w_load conf -state disabled
+ $w_cgrp conf -state disabled
+ $w_line conf -state disabled
+ $w_file conf -state disabled
+ }
+
+ if {[winfo exists $w.status.c]} {
+ $w.status.c coords bar 0 0 0 20
+ } else {
+ canvas $w.status.c \
+ -width 100 \
+ -height [expr {int([winfo reqheight $w.status.l] * 0.6)}] \
+ -borderwidth 1 \
+ -relief groove \
+ -highlightt 0
+ $w.status.c create rectangle 0 0 0 20 -tags bar -fill navy
+ pack $w.status.c -side right
+ }
+
+ if {$history eq {}} {
+ $w_back conf -state disabled
+ } else {
+ $w_back conf -state normal
+ }
+ lappend history [list $commit $path]
+
+ set status "Loading $commit:[escape_path $path]..."
+ $w_path conf -text [escape_path $path]
if {$commit eq {}} {
set fd [open $path r]
} else {
@@ -269,9 +362,52 @@ constructor new {i_commit i_path} {
}
fconfigure $fd -blocking 0 -translation lf -encoding binary
fileevent $fd readable [cb _read_file $fd]
+ set current_fd $fd
+}
+
+method _history_menu {} {
+ set m $w.backmenu
+ if {[winfo exists $m]} {
+ $m delete 0 end
+ } else {
+ menu $m -tearoff 0
+ }
+
+ for {set i [expr {[llength $history] - 2}]
+ } {$i >= 0} {incr i -1} {
+ set e [lindex $history $i]
+ set c [lindex $e 0]
+ set f [lindex $e 1]
+
+ if {[regexp {^[0-9a-f]{40}$} $c]} {
+ set t [string range $c 0 8]...
+ } else {
+ set t $c
+ }
+ if {![catch {set summary $header($c,summary)}]} {
+ append t " $summary"
+ }
+
+ $m add command -label $t -command [cb _goback $i $c $f]
+ }
+ set X [winfo rootx $w_back]
+ set Y [expr {[winfo rooty $w_back] + [winfo height $w_back]}]
+ tk_popup $m $X $Y
+}
+
+method _goback {i c f} {
+ set history [lrange $history 0 [expr {$i - 1}]]
+ set commit $c
+ set path $f
+ _load $this
}
method _read_file {fd} {
+ if {$fd ne $current_fd} {
+ catch {close $fd}
+ return
+ }
+
$w_load conf -state normal
$w_cgrp conf -state normal
$w_line conf -state normal
@@ -298,7 +434,7 @@ method _read_file {fd} {
if {[eof $fd]} {
close $fd
_status $this
- set cmd [list git blame -M -C --incremental]
+ set cmd {nice git blame -M -C --incremental}
if {$commit eq {}} {
lappend cmd --contents $path
} else {
@@ -308,12 +444,18 @@ method _read_file {fd} {
set fd [open "| $cmd" r]
fconfigure $fd -blocking 0 -translation lf -encoding binary
fileevent $fd readable [cb _read_blame $fd]
+ set current_fd $fd
}
} ifdeleted { catch {close $fd} }
method _read_blame {fd} {
variable group_colors
+ if {$fd ne $current_fd} {
+ catch {close $fd}
+ return
+ }
+
$w_cgrp conf -state normal
while {[gets $fd line] >= 0} {
if {[regexp {^([a-z0-9]{40}) (\d+) (\d+) (\d+)$} $line line \
@@ -344,7 +486,12 @@ method _read_blame {fd} {
if {[regexp {^0{40}$} $cmit]} {
set commit_abbr work
+ set commit_type curr_commit
+ } elseif {$cmit eq $commit} {
+ set commit_abbr this
+ set commit_type curr_commit
} else {
+ set commit_type prior_commit
set commit_abbr [string range $cmit 0 4]
}
@@ -396,7 +543,7 @@ method _read_blame {fd} {
$w_cgrp delete $lno.0 "$lno.0 lineend"
if {$lno == $first_lno} {
- $w_cgrp insert $lno.0 $commit_abbr
+ $w_cgrp insert $lno.0 $commit_abbr $commit_type
} elseif {$lno == [expr {$first_lno + 1}]} {
$w_cgrp insert $lno.0 $author_abbr
} else {
@@ -430,7 +577,7 @@ method _read_blame {fd} {
$w_cgrp delete $lno.0 "$lno.0 lineend"
if {$lno == $first_lno} {
- $w_cgrp insert $lno.0 $commit_abbr
+ $w_cgrp insert $lno.0 $commit_abbr $commit_type
} elseif {$lno == [expr {$first_lno + 1}]} {
$w_cgrp insert $lno.0 $author_abbr
} else {
@@ -447,6 +594,7 @@ method _read_blame {fd} {
if {[eof $fd]} {
close $fd
+ set current_fd {}
set status {Annotation complete.}
destroy $w.status.c
} else {
@@ -472,6 +620,16 @@ method _click {cur_w pos} {
_showcommit $this $lno
}
+method _load_commit {pos} {
+ set lno [lindex [split [$w_cgrp index $pos] .] 0]
+ if {[catch {set cmit $line_commit($lno)}]} return
+ if {[catch {set file $line_file($lno) }]} return
+
+ set commit $cmit
+ set path $file
+ _load $this
+}
+
method _showcommit {lno} {
global repo_config
variable active_color