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git/lib/database.tcl
Johannes Sixt dd70f3dbe4 git-gui: Report less precise object estimates for database compression
On startup, git-gui warns if there are many loose objects. It does so by
saying, e.g., that there are "approximately 768 loose objects". But isn't
"768" a very accurate number? Lets say "750", which (while still being a
very precise number) sounds much more like an estimation.

Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2008-04-14 19:34:23 -04:00

116 lines
3.1 KiB
Tcl

# git-gui object database management support
# Copyright (C) 2006, 2007 Shawn Pearce
proc do_stats {} {
set fd [git_read count-objects -v]
while {[gets $fd line] > 0} {
if {[regexp {^([^:]+): (\d+)$} $line _ name value]} {
set stats($name) $value
}
}
close $fd
set packed_sz 0
foreach p [glob -directory [gitdir objects pack] \
-type f \
-nocomplain -- *] {
incr packed_sz [file size $p]
}
if {$packed_sz > 0} {
set stats(size-pack) [expr {$packed_sz / 1024}]
}
set w .stats_view
toplevel $w
wm geometry $w "+[winfo rootx .]+[winfo rooty .]"
label $w.header -text [mc "Database Statistics"]
pack $w.header -side top -fill x
frame $w.buttons -border 1
button $w.buttons.close -text [mc Close] \
-default active \
-command [list destroy $w]
button $w.buttons.gc -text [mc "Compress Database"] \
-default normal \
-command "destroy $w;do_gc"
pack $w.buttons.close -side right
pack $w.buttons.gc -side left
pack $w.buttons -side bottom -fill x -pady 10 -padx 10
frame $w.stat -borderwidth 1 -relief solid
foreach s {
{count {mc "Number of loose objects"}}
{size {mc "Disk space used by loose objects"} { KiB}}
{in-pack {mc "Number of packed objects"}}
{packs {mc "Number of packs"}}
{size-pack {mc "Disk space used by packed objects"} { KiB}}
{prune-packable {mc "Packed objects waiting for pruning"}}
{garbage {mc "Garbage files"}}
} {
set name [lindex $s 0]
set label [eval [lindex $s 1]]
if {[catch {set value $stats($name)}]} continue
if {[llength $s] > 2} {
set value "$value[lindex $s 2]"
}
label $w.stat.l_$name -text "$label:" -anchor w
label $w.stat.v_$name -text $value -anchor w
grid $w.stat.l_$name $w.stat.v_$name -sticky we -padx {0 5}
}
pack $w.stat -pady 10 -padx 10
bind $w <Visibility> "grab $w; focus $w.buttons.close"
bind $w <Key-Escape> [list destroy $w]
bind $w <Key-Return> [list destroy $w]
wm title $w [append "[appname] ([reponame]): " [mc "Database Statistics"]]
tkwait window $w
}
proc do_gc {} {
set w [console::new {gc} [mc "Compressing the object database"]]
console::chain $w {
{exec git pack-refs --prune}
{exec git reflog expire --all}
{exec git repack -a -d -l}
{exec git rerere gc}
}
}
proc do_fsck_objects {} {
set w [console::new {fsck-objects} \
[mc "Verifying the object database with fsck-objects"]]
set cmd [list git fsck-objects]
lappend cmd --full
lappend cmd --cache
lappend cmd --strict
console::exec $w $cmd
}
proc hint_gc {} {
set object_limit 8
if {[is_Windows]} {
set object_limit 1
}
set objects_current [llength [glob \
-directory [gitdir objects 42] \
-nocomplain \
-tails \
-- \
*]]
if {$objects_current >= $object_limit} {
set objects_current [expr {$objects_current * 250}]
set object_limit [expr {$object_limit * 250}]
if {[ask_popup \
[mc "This repository currently has approximately %i loose objects.
To maintain optimal performance it is strongly recommended that you compress the database when more than %i loose objects exist.
Compress the database now?" $objects_current $object_limit]] eq yes} {
do_gc
}
}
}