package require msgcat
 
+# Check for Windows 7 MUI language pack (missed by msgcat < 1.4.4)
+if {[tk windowingsystem] eq "win32"
+       && [package vcompare [package provide msgcat] 1.4.4] < 0
+} then {
+       proc _mc_update_locale {} {
+               set key {HKEY_CURRENT_USER\Control Panel\Desktop}
+               if {![catch {
+                       package require registry
+                       set uilocale [registry get $key "PreferredUILanguages"]
+                       msgcat::ConvertLocale [string map {- _} [lindex $uilocale 0]]
+               } uilocale]} {
+                       if {[string length $uilocale] > 0} {
+                               msgcat::mclocale $uilocale
+                       }
+               }
+       }
+       _mc_update_locale
+}
+
 proc _mc_trim {fmt} {
        set cmk [string first @@ $fmt]
        if {$cmk > 0} {
 if {$_trace >= 0} {
        set argv [lreplace $argv $_trace $_trace]
        set _trace 1
+       if {[tk windowingsystem] eq "win32"} { console show }
 } else {
        set _trace 0
 }
 
+# variable for the last merged branch (useful for a default when deleting
+# branches).
+set _last_merged_branch {}
+
 proc shellpath {} {
        global _shellpath env
        if {[string match @@* $_shellpath]} {
        global repo_config
        if {[catch {set v $repo_config($name)}]} {
                return 0
-       } elseif {$v eq {true} || $v eq {1} || $v eq {yes}} {
+       }
+       set v [string tolower $v]
+       if {$v eq {} || $v eq {true} || $v eq {1} || $v eq {yes} || $v eq {on}} {
                return 1
        } else {
                return 0
        global repo_config
        if {[catch {set v $repo_config($name)}]} {
                return 0
-       } elseif {$v eq {false} || $v eq {0} || $v eq {no}} {
+       }
+       set v [string tolower $v]
+       if {$v eq {false} || $v eq {0} || $v eq {no} || $v eq {off}} {
                return 1
        } else {
                return 0
        return {}
 }
 
+# Test a file for a hashbang to identify executable scripts on Windows.
+proc is_shellscript {filename} {
+       if {![file exists $filename]} {return 0}
+       set f [open $filename r]
+       fconfigure $f -encoding binary
+       set magic [read $f 2]
+       close $f
+       return [expr {$magic eq "#!"}]
+}
+
+# Run a command connected via pipes on stdout.
+# This is for use with textconv filters and uses sh -c "..." to allow it to
+# contain a command with arguments. On windows we must check for shell
+# scripts specifically otherwise just call the filter command.
+proc open_cmd_pipe {cmd path} {
+       global env
+       if {![file executable [shellpath]]} {
+               set exe [auto_execok [lindex $cmd 0]]
+               if {[is_shellscript [lindex $exe 0]]} {
+                       set run [linsert [auto_execok sh] end -c "$cmd \"\$0\"" $path]
+               } else {
+                       set run [concat $exe [lrange $cmd 1 end] $path]
+               }
+       } else {
+               set run [list [shellpath] -c "$cmd \"\$0\"" $path]
+       }
+       return [open |$run r]
+}
+
 proc _lappend_nice {cmd_var} {
        global _nice
        upvar $cmd_var cmd
                gitlogo put gray26  -to  5 15 11 16
                gitlogo redither
 
-               wm iconphoto . -default gitlogo
+               image create photo gitlogo32 -width 32 -height 32
+               gitlogo32 copy gitlogo -zoom 2 2
+
+               wm iconphoto . -default gitlogo gitlogo32
        }
 }
 
 set default_config(gui.copyblamethreshold) 40
 set default_config(gui.blamehistoryctx) 7
 set default_config(gui.diffcontext) 5
+set default_config(gui.diffopts) {}
 set default_config(gui.commitmsgwidth) 75
 set default_config(gui.newbranchtemplate) {}
 set default_config(gui.spellingdictionary) {}
 # TODO: this option should be added to the git-config documentation
 set default_config(gui.maxfilesdisplayed) 5000
 set default_config(gui.usettk) 1
+set default_config(gui.warndetachedcommit) 1
 set font_descs {
        {fontui   font_ui   {mc "Main Font"}}
        {fontdiff font_diff {mc "Diff/Console Font"}}
 }
+set default_config(gui.stageuntracked) ask
 
 ######################################################################
 ##
                                } else {
                                        set arr($name) $value
                                }
+                       } elseif {[regexp {^([^\n]+)$} $line line name]} {
+                               # no value given, but interpreting them as
+                               # boolean will be handled as true
+                               set arr($name) {}
                        }
                }
        }
                                        } else {
                                                set arr($name) $value
                                        }
+                               } elseif {[regexp {^([^=]+)$} $line line name]} {
+                                       # no value given, but interpreting them as
+                                       # boolean will be handled as true
+                                       set arr($name) {}
                                }
                        }
                        close $fd_rc
                (![$ui_comm edit modified]
                || [string trim [$ui_comm get 0.0 end]] eq {})} {
                if {[string match amend* $commit_type]} {
-               } elseif {[load_message GITGUI_MSG]} {
+               } elseif {[load_message GITGUI_MSG utf-8]} {
                } elseif {[run_prepare_commit_msg_hook]} {
                } elseif {[load_message MERGE_MSG]} {
                } elseif {[load_message SQUASH_MSG]} {
                close $fd
        }
 
-       set ls_others [list --exclude-per-directory=.gitignore]
-       if {[have_info_exclude]} {
-               lappend ls_others "--exclude-from=[gitdir info exclude]"
-       }
-       set user_exclude [get_config core.excludesfile]
-       if {$user_exclude ne {} && [file readable $user_exclude]} {
-               lappend ls_others "--exclude-from=$user_exclude"
+       if {[package vsatisfies $::_git_version 1.6.3]} {
+               set ls_others [list --exclude-standard]
+       } else {
+               set ls_others [list --exclude-per-directory=.gitignore]
+               if {[have_info_exclude]} {
+                       lappend ls_others "--exclude-from=[gitdir info exclude]"
+               }
+               set user_exclude [get_config core.excludesfile]
+               if {$user_exclude ne {} && [file readable $user_exclude]} {
+                       lappend ls_others "--exclude-from=[file normalize $user_exclude]"
+               }
        }
 
        set buf_rdi {}
        fileevent $fd_lo readable [list read_ls_others $fd_lo $after]
 }
 
-proc load_message {file} {
+proc load_message {file {encoding {}}} {
        global ui_comm
 
        set f [gitdir $file]
                        return 0
                }
                fconfigure $fd -eofchar {}
+               if {$encoding ne {}} {
+                       fconfigure $fd -encoding $encoding
+               }
                set content [string trim [read $fd]]
                close $fd
                regsub -all -line {[ \r\t]+$} $content {} content
 
        # prepare-commit-msg requires PREPARE_COMMIT_MSG exist.  From git-gui
        # it will be .git/MERGE_MSG (merge), .git/SQUASH_MSG (squash), or an
-       # empty file but existant file.
+       # empty file but existent file.
 
        set fd_pcm [open [gitdir PREPARE_COMMIT_MSG] a]
 
 } -maskdata $filemask
 
 image create bitmap file_statechange -background white -foreground green -data {
-#define file_merge_width 14
-#define file_merge_height 15
+#define file_statechange_width 14
+#define file_statechange_height 15
 static unsigned char file_statechange_bits[] = {
    0xfe, 0x01, 0x02, 0x03, 0x02, 0x05, 0x02, 0x09, 0x02, 0x1f, 0x62, 0x10,
    0x62, 0x10, 0xba, 0x11, 0xba, 0x11, 0x62, 0x10, 0x62, 0x10, 0x02, 0x10,
                {MD {mc "Staged for commit, missing"}}
 
                {_T {mc "File type changed, not staged"}}
+               {MT {mc "File type changed, old type staged for commit"}}
+               {AT {mc "File type changed, old type staged for commit"}}
                {T_ {mc "File type changed, staged"}}
+               {TM {mc "File type change staged, modification not staged"}}
+               {TD {mc "File type change staged, file missing"}}
 
                {_O {mc "Untracked, not staged"}}
                {A_ {mc "Staged for commit"}}
                                && $msg ne {}} {
                                catch {
                                        set fd [open $save w]
+                                       fconfigure $fd -encoding utf-8
                                        puts -nonewline $fd $msg
                                        close $fd
                                }
                                [concat $after [list ui_ready]]
                }
        } else {
+               set selected_paths($path) 1
                show_diff $path $w $lno
        }
 }
        set jump_spec {}
        set is_path 0
        foreach a $argv {
-               if {$is_path || [file exists $_prefix$a]} {
+               if {[file exists $a]} {
+                       if {$path ne {}} usage
+                       set path [normalize_relpath $a]
+                       break
+               } elseif {[file exists $_prefix$a]} {
                        if {$path ne {}} usage
                        set path [normalize_relpath $_prefix$a]
                        break
+               }
+
+               if {$is_path} {
+                       if {$path ne {}} usage
+                       break
                } elseif {$a eq {--}} {
                        if {$path ne {}} {
                                if {$head ne {}} usage
        unset is_path
 
        if {$head ne {} && $path eq {}} {
-               set path [normalize_relpath $_prefix$head]
-               set head {}
+               if {[string index $head 0] eq {/}} {
+                       set path [normalize_relpath $head]
+                       set head {}
+               } else {
+                       set path [normalize_relpath $_prefix$head]
+                       set head {}
+               }
        }
 
        if {$head eq {}} {
        $ui_diff tag configure clri3$n -background $c
 }
 $ui_diff tag configure clr1 -font font_diffbold
+$ui_diff tag configure clr4 -underline 1
+
+$ui_diff tag conf d_info -foreground blue -font font_diffbold
 
 $ui_diff tag conf d_cr -elide true
 $ui_diff tag conf d_@ -font font_diffbold
        -foreground red \
        -background ivory1
 
-$ui_diff tag conf d<<<<<<< \
+$ui_diff tag conf d< \
        -foreground orange \
        -font font_diffbold
-$ui_diff tag conf d======= \
+$ui_diff tag conf d= \
        -foreground orange \
        -font font_diffbold
-$ui_diff tag conf d>>>>>>> \
+$ui_diff tag conf d> \
        -foreground orange \
        -font font_diffbold
 
                        || $current_diff_path eq {}
                        || {__} eq $state
                        || {_O} eq $state
-                       || {_T} eq $state
-                       || {T_} eq $state
+                       || [string match {?T} $state]
+                       || [string match {T?} $state]
                        || [has_textconv $current_diff_path]} {
                        set s disabled
                } else {
 bind $ui_diff <$M1B-Key-V> {break}
 bind $ui_diff <$M1B-Key-a> {%W tag add sel 0.0 end;break}
 bind $ui_diff <$M1B-Key-A> {%W tag add sel 0.0 end;break}
+bind $ui_diff <$M1B-Key-j> {do_revert_selection;break}
+bind $ui_diff <$M1B-Key-J> {do_revert_selection;break}
 bind $ui_diff <Key-Up>     {catch {%W yview scroll -1 units};break}
 bind $ui_diff <Key-Down>   {catch {%W yview scroll  1 units};break}
 bind $ui_diff <Key-Left>   {catch {%W xview scroll -1 units};break}
 bind .   <$M1B-Key-S> do_signoff
 bind .   <$M1B-Key-t> do_add_selection
 bind .   <$M1B-Key-T> do_add_selection
+bind .   <$M1B-Key-u> do_unstage_selection
+bind .   <$M1B-Key-U> do_unstage_selection
 bind .   <$M1B-Key-j> do_revert_selection
 bind .   <$M1B-Key-J> do_revert_selection
 bind .   <$M1B-Key-i> do_add_all
 }
 
 if {[winfo exists $ui_comm]} {
-       set GITGUI_BCK_exists [load_message GITGUI_BCK]
+       set GITGUI_BCK_exists [load_message GITGUI_BCK utf-8]
 
        # -- If both our backup and message files exist use the
        #    newer of the two files to initialize the buffer.
                        } elseif {$m} {
                                catch {
                                        set fd [open [gitdir GITGUI_BCK] w]
+                                       fconfigure $fd -encoding utf-8
                                        puts -nonewline $fd $msg
                                        close $fd
                                        set GITGUI_BCK_exists 1
                $ui_comm configure -state disabled -background gray
        }
 }
-if {[is_enabled multicommit]} {
+if {[is_enabled multicommit] && ![is_config_false gui.gcwarning]} {
        after 1000 hint_gc
 }
 if {[is_enabled retcode]} {