# 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 ndirs 1
        set limit 8
        if {[is_Windows]} {
                set ndirs 4
                set limit 1
        }

        set count [llength [glob \
                -nocomplain \
                -- \
                [gitdir objects 4\[0-[expr {$ndirs-1}]\]/*]]]

        if {$count >= $limit * $ndirs} {
                set objects_current [expr {$count * 256/$ndirs}]
                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.

Compress the database now?" $objects_current]] eq yes} {
                        do_gc
                }
        }
}