Merge branch 'sp/smart-http'
[gitweb.git] / git-gui / git-gui.sh
index 10d8a4422f151eda78a24ff533eb20c3d775d099..037a1f2c21958252052f4c1cf0d8a8507574ca95 100755 (executable)
@@ -122,6 +122,7 @@ unset oguimsg
 set _appname {Git Gui}
 set _gitdir {}
 set _gitexec {}
+set _githtmldir {}
 set _reponame {}
 set _iscygwin {}
 set _search_path {}
@@ -168,6 +169,28 @@ proc gitexec {args} {
        return [eval [list file join $_gitexec] $args]
 }
 
+proc githtmldir {args} {
+       global _githtmldir
+       if {$_githtmldir eq {}} {
+               if {[catch {set _githtmldir [git --html-path]}]} {
+                       # Git not installed or option not yet supported
+                       return {}
+               }
+               if {[is_Cygwin]} {
+                       set _githtmldir [exec cygpath \
+                               --windows \
+                               --absolute \
+                               $_githtmldir]
+               } else {
+                       set _githtmldir [file normalize $_githtmldir]
+               }
+       }
+       if {$args eq {}} {
+               return $_githtmldir
+       }
+       return [eval [list file join $_githtmldir] $args]
+}
+
 proc reponame {} {
        return $::_reponame
 }
@@ -521,6 +544,19 @@ proc kill_file_process {fd} {
        }
 }
 
+proc gitattr {path attr default} {
+       if {[catch {set r [git check-attr $attr -- $path]}]} {
+               set r unspecified
+       } else {
+               set r [join [lrange [split $r :] 2 end] :]
+               regsub {^ } $r {} r
+       }
+       if {$r eq {unspecified}} {
+               return $default
+       }
+       return $r
+}
+
 proc sq {value} {
        regsub -all ' $value "'\\''" value
        return "'$value'"
@@ -578,6 +614,34 @@ bind . <Visibility> {
 
 if {[is_Windows]} {
        wm iconbitmap . -default $oguilib/git-gui.ico
+       set ::tk::AlwaysShowSelection 1
+
+       # Spoof an X11 display for SSH
+       if {![info exists env(DISPLAY)]} {
+               set env(DISPLAY) :9999
+       }
+} else {
+       catch {
+               image create photo gitlogo -width 16 -height 16
+
+               gitlogo put #33CC33 -to  7  0  9  2
+               gitlogo put #33CC33 -to  4  2 12  4
+               gitlogo put #33CC33 -to  7  4  9  6
+               gitlogo put #CC3333 -to  4  6 12  8
+               gitlogo put gray26  -to  4  9  6 10
+               gitlogo put gray26  -to  3 10  6 12
+               gitlogo put gray26  -to  8  9 13 11
+               gitlogo put gray26  -to  8 11 10 12
+               gitlogo put gray26  -to 11 11 13 14
+               gitlogo put gray26  -to  3 12  5 14
+               gitlogo put gray26  -to  5 13
+               gitlogo put gray26  -to 10 13
+               gitlogo put gray26  -to  4 14 12 15
+               gitlogo put gray26  -to  5 15 11 16
+               gitlogo redither
+
+               wm iconphoto . -default gitlogo
+       }
 }
 
 ######################################################################
@@ -599,10 +663,13 @@ font create font_diffbold
 font create font_diffitalic
 
 foreach class {Button Checkbutton Entry Label
-               Labelframe Listbox Menu Message
+               Labelframe Listbox Message
                Radiobutton Spinbox Text} {
        option add *$class.font font_ui
 }
+if {![is_MacOSX]} {
+       option add *Menu.font font_ui
+}
 unset class
 
 if {[is_Windows] || [is_MacOSX]} {
@@ -658,13 +725,14 @@ proc apply_config {} {
 
 set default_config(branch.autosetupmerge) true
 set default_config(merge.tool) {}
-set default_config(merge.keepbackup) true
+set default_config(mergetool.keepbackup) true
 set default_config(merge.diffstat) true
 set default_config(merge.summary) false
 set default_config(merge.verbosity) 2
 set default_config(user.name) {}
 set default_config(user.email) {}
 
+set default_config(gui.encoding) [encoding system]
 set default_config(gui.matchtrackingbranch) false
 set default_config(gui.pruneduringfetch) false
 set default_config(gui.trustmtime) false
@@ -677,6 +745,8 @@ set default_config(gui.newbranchtemplate) {}
 set default_config(gui.spellingdictionary) {}
 set default_config(gui.fontui) [font configure font_ui]
 set default_config(gui.fontdiff) [font configure font_diff]
+# TODO: this option should be added to the git-config documentation
+set default_config(gui.maxfilesdisplayed) 5000
 set font_descs {
        {fontui   font_ui   {mc "Main Font"}}
        {fontdiff font_diff {mc "Diff/Console Font"}}
@@ -727,9 +797,9 @@ if {![regsub {^git version } $_git_version {} _git_version]} {
 set _real_git_version $_git_version
 regsub -- {[\-\.]dirty$} $_git_version {} _git_version
 regsub {\.[0-9]+\.g[0-9a-f]+$} $_git_version {} _git_version
-regsub {\.rc[0-9]+$} $_git_version {} _git_version
+regsub {\.[a-zA-Z]+\.?[0-9]+$} $_git_version {} _git_version
 regsub {\.GIT$} $_git_version {} _git_version
-regsub {\.[a-zA-Z]+\.[0-9]+$} $_git_version {} _git_version
+regsub {\.[a-zA-Z]+\.?[0-9]+$} $_git_version {} _git_version
 
 if {![regexp {^[1-9]+(\.[0-9]+)+$} $_git_version]} {
        catch {wm withdraw .}
@@ -898,19 +968,25 @@ git-version proc _parse_config {arr_name args} {
 }
 
 proc load_config {include_global} {
-       global repo_config global_config default_config
+       global repo_config global_config system_config default_config
 
        if {$include_global} {
+               _parse_config system_config --system
                _parse_config global_config --global
        }
        _parse_config repo_config
 
        foreach name [array names default_config] {
+               if {[catch {set v $system_config($name)}]} {
+                       set system_config($name) $default_config($name)
+               }
+       }
+       foreach name [array names system_config] {
                if {[catch {set v $global_config($name)}]} {
-                       set global_config($name) $default_config($name)
+                       set global_config($name) $system_config($name)
                }
                if {[catch {set v $repo_config($name)}]} {
-                       set repo_config($name) $default_config($name)
+                       set repo_config($name) $system_config($name)
                }
        }
 }
@@ -948,17 +1024,51 @@ blame {
 }
 citool {
        enable_option singlecommit
+       enable_option retcode
 
        disable_option multicommit
        disable_option branch
        disable_option transport
+
+       while {[llength $argv] > 0} {
+               set a [lindex $argv 0]
+               switch -- $a {
+               --amend {
+                       enable_option initialamend
+               }
+               --nocommit {
+                       enable_option nocommit
+                       enable_option nocommitmsg
+               }
+               --commitmsg {
+                       disable_option nocommitmsg
+               }
+               default {
+                       break
+               }
+               }
+
+               set argv [lrange $argv 1 end]
+       }
+}
 }
+
+######################################################################
+##
+## execution environment
+
+set have_tk85 [expr {[package vcompare $tk_version "8.5"] >= 0}]
+
+# Suggest our implementation of askpass, if none is set
+if {![info exists env(SSH_ASKPASS)]} {
+       set env(SSH_ASKPASS) [gitexec git-gui--askpass]
 }
 
 ######################################################################
 ##
 ## repository setup
 
+set picked 0
 if {[catch {
                set _gitdir $env(GIT_DIR)
                set _prefix {}
@@ -970,6 +1080,7 @@ if {[catch {
        load_config 1
        apply_config
        choose_repository::pick
+       set picked 1
 }
 if {![file isdirectory $_gitdir] && [is_Cygwin]} {
        catch {set _gitdir [exec cygpath --windows $_gitdir]}
@@ -1023,7 +1134,13 @@ set current_branch {}
 set is_detached 0
 set current_diff_path {}
 set is_3way_diff 0
+set is_submodule_diff 0
+set is_conflict_diff 0
 set selected_commit_type new
+set diff_empty_count 0
+
+set nullid "0000000000000000000000000000000000000000"
+set nullid2 "0000000000000000000000000000000000000001"
 
 ######################################################################
 ##
@@ -1105,6 +1222,20 @@ proc PARENT {} {
        return $empty_tree
 }
 
+proc force_amend {} {
+       global selected_commit_type
+       global HEAD PARENT MERGE_HEAD commit_type
+
+       repository_state newType newHEAD newMERGE_HEAD
+       set HEAD $newHEAD
+       set PARENT $newHEAD
+       set MERGE_HEAD $newMERGE_HEAD
+       set commit_type $newType
+
+       set selected_commit_type amend
+       do_select_commit_type
+}
+
 proc rescan {after {honor_trustmtime 1}} {
        global HEAD PARENT MERGE_HEAD commit_type
        global ui_index ui_workdir ui_comm
@@ -1131,6 +1262,7 @@ proc rescan {after {honor_trustmtime 1}} {
                || [string trim [$ui_comm get 0.0 end]] eq {})} {
                if {[string match amend* $commit_type]} {
                } elseif {[load_message GITGUI_MSG]} {
+               } elseif {[run_prepare_commit_msg_hook]} {
                } elseif {[load_message MERGE_MSG]} {
                } elseif {[load_message SQUASH_MSG]} {
                }
@@ -1230,6 +1362,70 @@ proc load_message {file} {
        return 0
 }
 
+proc run_prepare_commit_msg_hook {} {
+       global pch_error
+
+       # 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.
+
+       set fd_pcm [open [gitdir PREPARE_COMMIT_MSG] a]
+
+       if {[file isfile [gitdir MERGE_MSG]]} {
+               set pcm_source "merge"
+               set fd_mm [open [gitdir MERGE_MSG] r]
+               puts -nonewline $fd_pcm [read $fd_mm]
+               close $fd_mm
+       } elseif {[file isfile [gitdir SQUASH_MSG]]} {
+               set pcm_source "squash"
+               set fd_sm [open [gitdir SQUASH_MSG] r]
+               puts -nonewline $fd_pcm [read $fd_sm]
+               close $fd_sm
+       } else {
+               set pcm_source ""
+       }
+
+       close $fd_pcm
+
+       set fd_ph [githook_read prepare-commit-msg \
+                       [gitdir PREPARE_COMMIT_MSG] $pcm_source]
+       if {$fd_ph eq {}} {
+               catch {file delete [gitdir PREPARE_COMMIT_MSG]}
+               return 0;
+       }
+
+       ui_status [mc "Calling prepare-commit-msg hook..."]
+       set pch_error {}
+
+       fconfigure $fd_ph -blocking 0 -translation binary -eofchar {}
+       fileevent $fd_ph readable \
+               [list prepare_commit_msg_hook_wait $fd_ph]
+
+       return 1;
+}
+
+proc prepare_commit_msg_hook_wait {fd_ph} {
+       global pch_error
+
+       append pch_error [read $fd_ph]
+       fconfigure $fd_ph -blocking 1
+       if {[eof $fd_ph]} {
+               if {[catch {close $fd_ph}]} {
+                       ui_status [mc "Commit declined by prepare-commit-msg hook."]
+                       hook_failed_popup prepare-commit-msg $pch_error
+                       catch {file delete [gitdir PREPARE_COMMIT_MSG]}
+                       exit 1
+               } else {
+                       load_message PREPARE_COMMIT_MSG
+               }
+               set pch_error {}
+               catch {file delete [gitdir PREPARE_COMMIT_MSG]}
+               return
+        }
+       fconfigure $fd_ph -blocking 0
+       catch {file delete [gitdir PREPARE_COMMIT_MSG]}
+}
+
 proc read_diff_index {fd after} {
        global buf_rdi
 
@@ -1325,10 +1521,8 @@ proc rescan_done {fd buf after} {
        prune_selection
        unlock_index
        display_all_files
-       if {$current_diff_path ne {}} reshow_diff
-       if {$current_diff_path eq {}} select_first_diff
-
-       uplevel #0 $after
+       if {$current_diff_path ne {}} { reshow_diff $after }
+       if {$current_diff_path eq {}} { select_first_diff $after }
 }
 
 proc prune_selection {} {
@@ -1507,10 +1701,12 @@ proc display_all_files_helper {w path icon_name m} {
        $w insert end "[escape_path $path]\n"
 }
 
+set files_warning 0
 proc display_all_files {} {
        global ui_index ui_workdir
        global file_states file_lists
        global last_clicked
+       global files_warning
 
        $ui_index conf -state normal
        $ui_workdir conf -state normal
@@ -1522,7 +1718,18 @@ proc display_all_files {} {
        set file_lists($ui_index) [list]
        set file_lists($ui_workdir) [list]
 
-       foreach path [lsort [array names file_states]] {
+       set to_display [lsort [array names file_states]]
+       set display_limit [get_config gui.maxfilesdisplayed]
+       if {[llength $to_display] > $display_limit} {
+               if {!$files_warning} {
+                       # do not repeatedly warn:
+                       set files_warning 1
+                       info_popup [mc "Displaying only %s of %s files." \
+                               $display_limit [llength $to_display]]
+               }
+               set to_display [lrange $to_display 0 [expr {$display_limit-1}]]
+       }
+       foreach path $to_display {
                set s $file_states($path)
                set m [lindex $s 0]
                set icon_name [lindex $s 1]
@@ -1750,12 +1957,33 @@ proc do_gitk {revs} {
        }
 }
 
+proc do_explore {} {
+       set explorer {}
+       if {[is_Cygwin] || [is_Windows]} {
+               set explorer "explorer.exe"
+       } elseif {[is_MacOSX]} {
+               set explorer "open"
+       } else {
+               # freedesktop.org-conforming system is our best shot
+               set explorer "xdg-open"
+       }
+       eval exec $explorer [list [file nativename [file dirname [gitdir]]]] &
+}
+
 set is_quitting 0
+set ret_code    1
+
+proc terminate_me {win} {
+       global ret_code
+       if {$win ne {.}} return
+       exit $ret_code
+}
 
-proc do_quit {} {
+proc do_quit {{rc {1}}} {
        global ui_comm is_quitting repo_config commit_type
        global GITGUI_BCK_exists GITGUI_BCK_i
        global ui_comm_spell
+       global ret_code
 
        if {$is_quitting} return
        set is_quitting 1
@@ -1798,6 +2026,19 @@ proc do_quit {} {
 
                # -- Stash our current window geometry into this repository.
                #
+               set cfg_wmstate [wm state .]
+               if {[catch {set rc_wmstate $repo_config(gui.wmstate)}]} {
+                       set rc_wmstate {}
+               }
+               if {$cfg_wmstate ne $rc_wmstate} {
+                       catch {git config gui.wmstate $cfg_wmstate}
+               }
+               if {$cfg_wmstate eq {zoomed}} {
+                       # on Windows wm geometry will lie about window
+                       # position (but not size) when window is zoomed
+                       # restore the window before querying wm geometry
+                       wm state . normal
+               }
                set cfg_geometry [list]
                lappend cfg_geometry [wm geometry .]
                lappend cfg_geometry [lindex [.vpane sash coord 0] 0]
@@ -1810,6 +2051,7 @@ proc do_quit {} {
                }
        }
 
+       set ret_code $rc
        destroy .
 }
 
@@ -1818,16 +2060,16 @@ proc do_rescan {} {
 }
 
 proc ui_do_rescan {} {
-       rescan {force_first_diff; ui_ready}
+       rescan {force_first_diff ui_ready}
 }
 
 proc do_commit {} {
        commit_tree
 }
 
-proc next_diff {} {
+proc next_diff {{after {}}} {
        global next_diff_p next_diff_w next_diff_i
-       show_diff $next_diff_p $next_diff_w {}
+       show_diff $next_diff_p $next_diff_w {} {} $after
 }
 
 proc find_anchor_pos {lst name} {
@@ -1912,25 +2154,42 @@ proc next_diff_after_action {w path {lno {}} {mmask {}}} {
        }
 }
 
-proc select_first_diff {} {
+proc select_first_diff {after} {
        global ui_workdir
 
        if {[find_next_diff $ui_workdir {} 1 {^_?U}] ||
            [find_next_diff $ui_workdir {} 1 {[^O]$}]} {
-               next_diff
+               next_diff $after
+       } else {
+               uplevel #0 $after
        }
 }
 
-proc force_first_diff {} {
-       global current_diff_path
+proc force_first_diff {after} {
+       global ui_workdir current_diff_path file_states
 
        if {[info exists file_states($current_diff_path)]} {
                set state [lindex $file_states($current_diff_path) 0]
+       } else {
+               set state {OO}
+       }
 
-               if {[string index $state 1] ne {O}} return
+       set reselect 0
+       if {[string first {U} $state] >= 0} {
+               # Already a conflict, do nothing
+       } elseif {[find_next_diff $ui_workdir $current_diff_path {} {^_?U}]} {
+               set reselect 1
+       } elseif {[string index $state 1] ne {O}} {
+               # Already a diff & no conflicts, do nothing
+       } elseif {[find_next_diff $ui_workdir $current_diff_path {} {[^O]$}]} {
+               set reselect 1
        }
 
-       select_first_diff
+       if {$reselect} {
+               next_diff $after
+       } else {
+               uplevel #0 $after
+       }
 }
 
 proc toggle_or_diff {w x y} {
@@ -1951,19 +2210,23 @@ proc toggle_or_diff {w x y} {
        $ui_index tag remove in_sel 0.0 end
        $ui_workdir tag remove in_sel 0.0 end
 
-       # Do not stage files with conflicts
+       # Determine the state of the file
        if {[info exists file_states($path)]} {
                set state [lindex $file_states($path) 0]
        } else {
                set state {__}
        }
 
-       if {[string first {U} $state] >= 0} {
-               set col 1
-       }
-
        # Restage the file, or simply show the diff
        if {$col == 0 && $y > 1} {
+               # Conflicts need special handling
+               if {[string first {U} $state] >= 0} {
+                       # $w must always be $ui_workdir, but...
+                       if {$w ne $ui_workdir} { set lno {} }
+                       merge_stage_workdir $path $lno
+                       return
+               }
+
                if {[string index $state 1] eq {O}} {
                        set mmask {}
                } else {
@@ -2070,6 +2333,12 @@ set ui_comm {}
 # -- Menu Bar
 #
 menu .mbar -tearoff 0
+if {[is_MacOSX]} {
+       # -- Apple Menu (Mac OS X only)
+       #
+       .mbar add cascade -label Apple -menu .mbar.apple
+       menu .mbar.apple
+}
 .mbar add cascade -label [mc Repository] -menu .mbar.repository
 .mbar add cascade -label [mc Edit] -menu .mbar.edit
 if {[is_enabled branch]} {
@@ -2082,12 +2351,19 @@ if {[is_enabled transport]} {
        .mbar add cascade -label [mc Merge] -menu .mbar.merge
        .mbar add cascade -label [mc Remote] -menu .mbar.remote
 }
-. configure -menu .mbar
+if {[is_enabled multicommit] || [is_enabled singlecommit]} {
+       .mbar add cascade -label [mc Tools] -menu .mbar.tools
+}
 
 # -- Repository Menu
 #
 menu .mbar.repository
 
+.mbar.repository add command \
+       -label [mc "Explore Working Copy"] \
+       -command {do_explore}
+.mbar.repository add separator
+
 .mbar.repository add command \
        -label [mc "Browse Current Branch's Files"] \
        -command {browser::new $current_branch}
@@ -2212,26 +2488,36 @@ if {[is_enabled branch]} {
 
 # -- Commit Menu
 #
+proc commit_btn_caption {} {
+       if {[is_enabled nocommit]} {
+               return [mc "Done"]
+       } else {
+               return [mc Commit@@verb]
+       }
+}
+
 if {[is_enabled multicommit] || [is_enabled singlecommit]} {
        menu .mbar.commit
 
-       .mbar.commit add radiobutton \
-               -label [mc "New Commit"] \
-               -command do_select_commit_type \
-               -variable selected_commit_type \
-               -value new
-       lappend disable_on_lock \
-               [list .mbar.commit entryconf [.mbar.commit index last] -state]
+       if {![is_enabled nocommit]} {
+               .mbar.commit add radiobutton \
+                       -label [mc "New Commit"] \
+                       -command do_select_commit_type \
+                       -variable selected_commit_type \
+                       -value new
+               lappend disable_on_lock \
+                       [list .mbar.commit entryconf [.mbar.commit index last] -state]
 
-       .mbar.commit add radiobutton \
-               -label [mc "Amend Last Commit"] \
-               -command do_select_commit_type \
-               -variable selected_commit_type \
-               -value amend
-       lappend disable_on_lock \
-               [list .mbar.commit entryconf [.mbar.commit index last] -state]
+               .mbar.commit add radiobutton \
+                       -label [mc "Amend Last Commit"] \
+                       -command do_select_commit_type \
+                       -variable selected_commit_type \
+                       -value amend
+               lappend disable_on_lock \
+                       [list .mbar.commit entryconf [.mbar.commit index last] -state]
 
-       .mbar.commit add separator
+               .mbar.commit add separator
+       }
 
        .mbar.commit add command -label [mc Rescan] \
                -command ui_do_rescan \
@@ -2273,11 +2559,13 @@ if {[is_enabled multicommit] || [is_enabled singlecommit]} {
 
        .mbar.commit add separator
 
-       .mbar.commit add command -label [mc "Sign Off"] \
-               -command do_signoff \
-               -accelerator $M1T-S
+       if {![is_enabled nocommitmsg]} {
+               .mbar.commit add command -label [mc "Sign Off"] \
+                       -command do_signoff \
+                       -accelerator $M1T-S
+       }
 
-       .mbar.commit add command -label [mc Commit@@verb] \
+       .mbar.commit add command -label [commit_btn_caption] \
                -command do_commit \
                -accelerator $M1T-Return
        lappend disable_on_lock \
@@ -2304,29 +2592,21 @@ if {[is_enabled branch]} {
 if {[is_enabled transport]} {
        menu .mbar.remote
 
+       .mbar.remote add command \
+               -label [mc "Add..."] \
+               -command remote_add::dialog \
+               -accelerator $M1T-A
        .mbar.remote add command \
                -label [mc "Push..."] \
                -command do_push_anywhere \
                -accelerator $M1T-P
        .mbar.remote add command \
-               -label [mc "Delete..."] \
+               -label [mc "Delete Branch..."] \
                -command remote_branch_delete::dialog
 }
 
 if {[is_MacOSX]} {
-       # -- Apple Menu (Mac OS X only)
-       #
-       .mbar add cascade -label Apple -menu .mbar.apple
-       menu .mbar.apple
-
-       .mbar.apple add command -label [mc "About %s" [appname]] \
-               -command do_about
-       .mbar.apple add separator
-       .mbar.apple add command \
-               -label [mc "Preferences..."] \
-               -command do_options \
-               -accelerator $M1T-,
-       bind . <$M1B-,> do_options
+       proc ::tk::mac::ShowPreferences {} {do_options}
 } else {
        # -- Edit Menu
        #
@@ -2335,39 +2615,41 @@ if {[is_MacOSX]} {
                -command do_options
 }
 
+# -- Tools Menu
+#
+if {[is_enabled multicommit] || [is_enabled singlecommit]} {
+       set tools_menubar .mbar.tools
+       menu $tools_menubar
+       $tools_menubar add separator
+       $tools_menubar add command -label [mc "Add..."] -command tools_add::dialog
+       $tools_menubar add command -label [mc "Remove..."] -command tools_remove::dialog
+       set tools_tailcnt 3
+       if {[array names repo_config guitool.*.cmd] ne {}} {
+               tools_populate_all
+       }
+}
+
 # -- Help Menu
 #
 .mbar add cascade -label [mc Help] -menu .mbar.help
 menu .mbar.help
 
-if {![is_MacOSX]} {
+if {[is_MacOSX]} {
+       .mbar.apple add command -label [mc "About %s" [appname]] \
+               -command do_about
+       .mbar.apple add separator
+} else {
        .mbar.help add command -label [mc "About %s" [appname]] \
                -command do_about
 }
+. configure -menu .mbar
 
-set browser {}
-catch {set browser $repo_config(instaweb.browser)}
-set doc_path [file dirname [gitexec]]
-set doc_path [file join $doc_path Documentation index.html]
-
-if {[is_Cygwin]} {
-       set doc_path [exec cygpath --mixed $doc_path]
-}
+set doc_path [githtmldir]
+if {$doc_path ne {}} {
+       set doc_path [file join $doc_path index.html]
 
-if {$browser eq {}} {
-       if {[is_MacOSX]} {
-               set browser open
-       } elseif {[is_Cygwin]} {
-               set program_files [file dirname [exec cygpath --windir]]
-               set program_files [file join $program_files {Program Files}]
-               set firefox [file join $program_files {Mozilla Firefox} firefox.exe]
-               set ie [file join $program_files {Internet Explorer} IEXPLORE.EXE]
-               if {[file exists $firefox]} {
-                       set browser $firefox
-               } elseif {[file exists $ie]} {
-                       set browser $ie
-               }
-               unset program_files firefox ie
+       if {[is_Cygwin]} {
+               set doc_path [exec cygpath --mixed $doc_path]
        }
 }
 
@@ -2377,11 +2659,17 @@ if {[file isfile $doc_path]} {
        set doc_url {http://www.kernel.org/pub/software/scm/git/docs/}
 }
 
-if {$browser ne {}} {
-       .mbar.help add command -label [mc "Online Documentation"] \
-               -command [list exec $browser $doc_url &]
+proc start_browser {url} {
+       git "web--browse" $url
 }
-unset browser doc_path doc_url
+
+.mbar.help add command -label [mc "Online Documentation"] \
+       -command [list start_browser $doc_url]
+
+.mbar.help add command -label [mc "Show SSH Key"] \
+       -command do_ssh_key
+
+unset doc_path doc_url
 
 # -- Standard bindings
 #
@@ -2397,6 +2685,20 @@ proc usage {} {
        exit 1
 }
 
+proc normalize_relpath {path} {
+       set elements {}
+       foreach item [file split $path] {
+               if {$item eq {.}} continue
+               if {$item eq {..} && [llength $elements] > 0
+                   && [lindex $elements end] ne {..}} {
+                       set elements [lrange $elements 0 end-1]
+                       continue
+               }
+               lappend elements $item
+       }
+       return [eval file join $elements]
+}
+
 # -- Not a normal commit type invocation?  Do that instead!
 #
 switch -- $subcommand {
@@ -2415,7 +2717,7 @@ blame {
        foreach a $argv {
                if {$is_path || [file exists $_prefix$a]} {
                        if {$path ne {}} usage
-                       set path $_prefix$a
+                       set path [normalize_relpath $_prefix$a]
                        break
                } elseif {$a eq {--}} {
                        if {$path ne {}} {
@@ -2438,7 +2740,7 @@ blame {
        unset is_path
 
        if {$head ne {} && $path eq {}} {
-               set path $_prefix$head
+               set path [normalize_relpath $_prefix$head]
                set head {}
        }
 
@@ -2601,19 +2903,23 @@ pack .vpane.lower.commarea.buttons.incall -side top -fill x
 lappend disable_on_lock \
        {.vpane.lower.commarea.buttons.incall conf -state}
 
-button .vpane.lower.commarea.buttons.signoff -text [mc "Sign Off"] \
-       -command do_signoff
-pack .vpane.lower.commarea.buttons.signoff -side top -fill x
+if {![is_enabled nocommitmsg]} {
+       button .vpane.lower.commarea.buttons.signoff -text [mc "Sign Off"] \
+               -command do_signoff
+       pack .vpane.lower.commarea.buttons.signoff -side top -fill x
+}
 
-button .vpane.lower.commarea.buttons.commit -text [mc Commit@@verb] \
+button .vpane.lower.commarea.buttons.commit -text [commit_btn_caption] \
        -command do_commit
 pack .vpane.lower.commarea.buttons.commit -side top -fill x
 lappend disable_on_lock \
        {.vpane.lower.commarea.buttons.commit conf -state}
 
-button .vpane.lower.commarea.buttons.push -text [mc Push] \
-       -command do_push_anywhere
-pack .vpane.lower.commarea.buttons.push -side top -fill x
+if {![is_enabled nocommit]} {
+       button .vpane.lower.commarea.buttons.push -text [mc Push] \
+               -command do_push_anywhere
+       pack .vpane.lower.commarea.buttons.push -side top -fill x
+}
 
 # -- Commit Message Buffer
 #
@@ -2621,20 +2927,24 @@ frame .vpane.lower.commarea.buffer
 frame .vpane.lower.commarea.buffer.header
 set ui_comm .vpane.lower.commarea.buffer.t
 set ui_coml .vpane.lower.commarea.buffer.header.l
-radiobutton .vpane.lower.commarea.buffer.header.new \
-       -text [mc "New Commit"] \
-       -command do_select_commit_type \
-       -variable selected_commit_type \
-       -value new
-lappend disable_on_lock \
-       [list .vpane.lower.commarea.buffer.header.new conf -state]
-radiobutton .vpane.lower.commarea.buffer.header.amend \
-       -text [mc "Amend Last Commit"] \
-       -command do_select_commit_type \
-       -variable selected_commit_type \
-       -value amend
-lappend disable_on_lock \
-       [list .vpane.lower.commarea.buffer.header.amend conf -state]
+
+if {![is_enabled nocommit]} {
+       radiobutton .vpane.lower.commarea.buffer.header.new \
+               -text [mc "New Commit"] \
+               -command do_select_commit_type \
+               -variable selected_commit_type \
+               -value new
+       lappend disable_on_lock \
+               [list .vpane.lower.commarea.buffer.header.new conf -state]
+       radiobutton .vpane.lower.commarea.buffer.header.amend \
+               -text [mc "Amend Last Commit"] \
+               -command do_select_commit_type \
+               -variable selected_commit_type \
+               -value amend
+       lappend disable_on_lock \
+               [list .vpane.lower.commarea.buffer.header.amend conf -state]
+}
+
 label $ui_coml \
        -anchor w \
        -justify left
@@ -2652,8 +2962,11 @@ proc trace_commit_type {varname args} {
 }
 trace add variable commit_type write trace_commit_type
 pack $ui_coml -side left -fill x
-pack .vpane.lower.commarea.buffer.header.amend -side right
-pack .vpane.lower.commarea.buffer.header.new -side right
+
+if {![is_enabled nocommit]} {
+       pack .vpane.lower.commarea.buffer.header.amend -side right
+       pack .vpane.lower.commarea.buffer.header.new -side right
+}
 
 text $ui_comm -background white -foreground black \
        -borderwidth 1 \
@@ -2686,7 +2999,7 @@ $ctxm add command \
        -command {tk_textPaste $ui_comm}
 $ctxm add command \
        -label [mc Delete] \
-       -command {$ui_comm delete sel.first sel.last}
+       -command {catch {$ui_comm delete sel.first sel.last}}
 $ctxm add separator
 $ctxm add command \
        -label [mc "Select All"] \
@@ -2770,7 +3083,7 @@ frame .vpane.lower.diff.body
 set ui_diff .vpane.lower.diff.body.t
 text $ui_diff -background white -foreground black \
        -borderwidth 0 \
-       -width 80 -height 15 -wrap none \
+       -width 80 -height 5 -wrap none \
        -font font_diff \
        -xscrollcommand {.vpane.lower.diff.body.sbx set} \
        -yscrollcommand {.vpane.lower.diff.body.sby set} \
@@ -2860,6 +3173,14 @@ proc create_common_diff_popup {ctxm} {
                -command {incr_font_size font_diff 1}
        lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
        $ctxm add separator
+       set emenu $ctxm.enc
+       menu $emenu
+       build_encoding_menu $emenu [list force_diff_encoding]
+       $ctxm add cascade \
+               -label [mc "Encoding"] \
+               -menu $emenu
+       lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
+       $ctxm add separator
        $ctxm add command -label [mc "Options..."] \
                -command do_options
 }
@@ -2920,7 +3241,7 @@ proc popup_diff_menu {ctxm ctxmmg x y X Y} {
                        set l [mc "Stage Hunk For Commit"]
                        set t [mc "Stage Line For Commit"]
                }
-               if {$::is_3way_diff
+               if {$::is_3way_diff || $::is_submodule_diff
                        || $current_diff_path eq {}
                        || {__} eq $state
                        || {_O} eq $state
@@ -2957,6 +3278,14 @@ wm geometry . [lindex $gm 0]
 unset gm
 }
 
+# -- Load window state
+#
+catch {
+set gws $repo_config(gui.wmstate)
+wm state . $gws
+unset gws
+}
+
 # -- Key Bindings
 #
 bind $ui_comm <$M1B-Key-Return> {do_commit;break}
@@ -3063,7 +3392,6 @@ by %s:
                {^GIT_PAGER$} -
                {^GIT_TRACE$} -
                {^GIT_CONFIG$} -
-               {^GIT_CONFIG_LOCAL$} -
                {^GIT_(AUTHOR|COMMITTER)_DATE$} {
                        append msg " - $name\n"
                        incr ignored_env
@@ -3100,8 +3428,7 @@ if {[is_enabled transport]} {
        load_all_remotes
 
        set n [.mbar.remote index end]
-       populate_push_menu
-       populate_fetch_menu
+       populate_remotes_menu
        set n [expr {[.mbar.remote index end] - $n}]
        if {$n > 0} {
                if {[.mbar.remote type 0] eq "tearoff"} { incr n }
@@ -3191,7 +3518,23 @@ lock_index begin-read
 if {![winfo ismapped .]} {
        wm deiconify .
 }
-after 1 do_rescan
+after 1 {
+       if {[is_enabled initialamend]} {
+               force_amend
+       } else {
+               do_rescan
+       }
+
+       if {[is_enabled nocommitmsg]} {
+               $ui_comm configure -state disabled -background gray
+       }
+}
 if {[is_enabled multicommit]} {
        after 1000 hint_gc
 }
+if {[is_enabled retcode]} {
+       bind . <Destroy> {+terminate_me %W}
+}
+if {$picked && [is_config_true gui.autoexplore]} {
+       do_explore
+}