git-gui: Automatically update-index all included files before commit.
[gitweb.git] / git-gui
diff --git a/git-gui b/git-gui
index 29877e4150146fc73160e9e97d9fa8f46cd47f39..9a6953e970bd5a499f13404559122a903546cf30 100755 (executable)
--- a/git-gui
+++ b/git-gui
@@ -14,49 +14,108 @@ set gitdir {}
 ##
 ## config
 
-proc load_repo_config {} {
-       global repo_config
-       global cfg_trust_mtime
+proc is_many_config {name} {
+       switch -glob -- $name {
+       remote.*.fetch -
+       remote.*.push
+               {return 1}
+       *
+               {return 0}
+       }
+}
+
+proc load_config {include_global} {
+       global repo_config global_config default_config
+
+       array unset global_config
+       if {$include_global} {
+               catch {
+                       set fd_rc [open "| git repo-config --global --list" r]
+                       while {[gets $fd_rc line] >= 0} {
+                               if {[regexp {^([^=]+)=(.*)$} $line line name value]} {
+                                       if {[is_many_config $name]} {
+                                               lappend global_config($name) $value
+                                       } else {
+                                               set global_config($name) $value
+                                       }
+                               }
+                       }
+                       close $fd_rc
+               }
+       }
 
        array unset repo_config
        catch {
                set fd_rc [open "| git repo-config --list" r]
                while {[gets $fd_rc line] >= 0} {
                        if {[regexp {^([^=]+)=(.*)$} $line line name value]} {
-                               lappend repo_config($name) $value
+                               if {[is_many_config $name]} {
+                                       lappend repo_config($name) $value
+                               } else {
+                                       set repo_config($name) $value
+                               }
                        }
                }
                close $fd_rc
        }
 
-       if {[catch {set cfg_trust_mtime \
-                       [lindex $repo_config(gui.trustmtime) 0]
-               }]} {
-               set cfg_trust_mtime false
+       foreach name [array names default_config] {
+               if {[catch {set v $global_config($name)}]} {
+                       set global_config($name) $default_config($name)
+               }
+               if {[catch {set v $repo_config($name)}]} {
+                       set repo_config($name) $default_config($name)
+               }
        }
 }
 
-proc save_my_config {} {
-       global repo_config
-       global cfg_trust_mtime
+proc save_config {} {
+       global default_config font_descs
+       global repo_config global_config
+       global repo_config_new global_config_new
 
-       if {[catch {set rc_trustMTime $repo_config(gui.trustmtime)}]} {
-               set rc_trustMTime [list false]
-       }
-       if {$cfg_trust_mtime != [lindex $rc_trustMTime 0]} {
-               exec git repo-config gui.trustMTime $cfg_trust_mtime
-               set repo_config(gui.trustmtime) [list $cfg_trust_mtime]
+       foreach option $font_descs {
+               set name [lindex $option 0]
+               set font [lindex $option 1]
+               font configure $font \
+                       -family $global_config_new(gui.$font^^family) \
+                       -size $global_config_new(gui.$font^^size)
+               font configure ${font}bold \
+                       -family $global_config_new(gui.$font^^family) \
+                       -size $global_config_new(gui.$font^^size)
+               set global_config_new(gui.$name) [font configure $font]
+               unset global_config_new(gui.$font^^family)
+               unset global_config_new(gui.$font^^size)
        }
 
-       set cfg_geometry [wm geometry .]
-       append cfg_geometry " [lindex [.vpane sash coord 0] 1]"
-       append cfg_geometry " [lindex [.vpane.files sash coord 0] 0]"
-       if {[catch {set rc_geometry $repo_config(gui.geometry)}]} {
-               set rc_geometry [list [list]]
+       foreach name [array names default_config] {
+               set value $global_config_new($name)
+               if {$value ne $global_config($name)} {
+                       if {$value eq $default_config($name)} {
+                               catch {exec git repo-config --global --unset $name}
+                       } else {
+                               regsub -all "\[{}\]" $value {"} value
+                               exec git repo-config --global $name $value
+                       }
+                       set global_config($name) $value
+                       if {$value eq $repo_config($name)} {
+                               catch {exec git repo-config --unset $name}
+                               set repo_config($name) $value
+                       }
+               }
        }
-       if {$cfg_geometry != [lindex $rc_geometry 0]} {
-               exec git repo-config gui.geometry $cfg_geometry
-               set repo_config(gui.geometry) [list $cfg_geometry]
+
+       foreach name [array names default_config] {
+               set value $repo_config_new($name)
+               if {$value ne $repo_config($name)} {
+                       if {$value eq $global_config($name)} {
+                               catch {exec git repo-config --unset $name}
+                       } else {
+                               regsub -all "\[{}\]" $value {"} value
+                               exec git repo-config $name $value
+                       }
+                       set repo_config($name) $value
+               }
        }
 }
 
@@ -64,7 +123,7 @@ proc error_popup {msg} {
        global gitdir appname
 
        set title $appname
-       if {$gitdir != {}} {
+       if {$gitdir ne {}} {
                append title { (}
                append title [lindex \
                        [file split [file normalize [file dirname $gitdir]]] \
@@ -83,7 +142,7 @@ proc info_popup {msg} {
        global gitdir appname
 
        set title $appname
-       if {$gitdir != {}} {
+       if {$gitdir ne {}} {
                append title { (}
                append title [lindex \
                        [file split [file normalize [file dirname $gitdir]]] \
@@ -108,27 +167,23 @@ if {   [catch {set cdup [exec git rev-parse --show-cdup]} err]
        error_popup "Cannot find the git directory:\n\n$err"
        exit 1
 }
-if {$cdup != ""} {
+if {$cdup ne ""} {
        cd $cdup
 }
 unset cdup
 
-if {$appname == {git-citool}} {
+set single_commit 0
+if {$appname eq {git-citool}} {
        set single_commit 1
 }
 
-load_repo_config
-
 ######################################################################
 ##
 ## task management
 
-set single_commit 0
-set status_active 0
+set rescan_active 0
 set diff_active 0
-set update_active 0
-set commit_active 0
-set update_index_fd {}
+set last_clicked {}
 
 set disable_on_lock [list]
 set index_lock_type none
@@ -140,13 +195,13 @@ set commit_type {}
 proc lock_index {type} {
        global index_lock_type disable_on_lock
 
-       if {$index_lock_type == {none}} {
+       if {$index_lock_type eq {none}} {
                set index_lock_type $type
                foreach w $disable_on_lock {
                        uplevel #0 $w disabled
                }
                return 1
-       } elseif {$index_lock_type == {begin-update} && $type == {update}} {
+       } elseif {$index_lock_type eq {begin-update} && $type eq {update}} {
                set index_lock_type $type
                return 1
        }
@@ -179,18 +234,18 @@ proc repository_state {hdvar ctvar} {
        }
 }
 
-proc update_status {{final Ready.}} {
+proc rescan {after} {
        global HEAD PARENT commit_type
        global ui_index ui_other ui_status_value ui_comm
-       global status_active file_states
-       global cfg_trust_mtime
+       global rescan_active file_states
+       global repo_config
 
-       if {$status_active || ![lock_index read]} return
+       if {$rescan_active > 0 || ![lock_index read]} return
 
        repository_state new_HEAD new_type
-       if {$commit_type == {amend} 
-               && $new_type == {normal}
-               && $new_HEAD == $HEAD} {
+       if {$commit_type eq {amend}
+               && $new_type eq {normal}
+               && $new_HEAD eq $HEAD} {
        } else {
                set HEAD $new_HEAD
                set PARENT $new_HEAD
@@ -200,7 +255,7 @@ proc update_status {{final Ready.}} {
        array unset file_states
 
        if {![$ui_comm edit modified]
-               || [string trim [$ui_comm get 0.0 end]] == {}} {
+               || [string trim [$ui_comm get 0.0 end]] eq {}} {
                if {[load_message GITGUI_MSG]} {
                } elseif {[load_message MERGE_MSG]} {
                } elseif {[load_message SQUASH_MSG]} {
@@ -209,10 +264,10 @@ proc update_status {{final Ready.}} {
                $ui_comm edit reset
        }
 
-       if {$cfg_trust_mtime == {true}} {
-               update_status_stage2 {} $final
+       if {$repo_config(gui.trustmtime) eq {true}} {
+               rescan_stage2 {} $after
        } else {
-               set status_active 1
+               set rescan_active 1
                set ui_status_value {Refreshing file status...}
                set cmd [list git update-index]
                lappend cmd -q
@@ -222,17 +277,17 @@ proc update_status {{final Ready.}} {
                set fd_rf [open "| $cmd" r]
                fconfigure $fd_rf -blocking 0 -translation binary
                fileevent $fd_rf readable \
-                       [list update_status_stage2 $fd_rf $final]
+                       [list rescan_stage2 $fd_rf $after]
        }
 }
 
-proc update_status_stage2 {fd final} {
+proc rescan_stage2 {fd after} {
        global gitdir PARENT commit_type
        global ui_index ui_other ui_status_value ui_comm
-       global status_active
+       global rescan_active
        global buf_rdi buf_rdf buf_rlo
 
-       if {$fd != {}} {
+       if {$fd ne {}} {
                read $fd
                if {![eof $fd]} return
                close $fd
@@ -249,7 +304,7 @@ proc update_status_stage2 {fd final} {
        set buf_rdf {}
        set buf_rlo {}
 
-       set status_active 3
+       set rescan_active 3
        set ui_status_value {Scanning for modified files ...}
        set fd_di [open "| git diff-index --cached -z $PARENT" r]
        set fd_df [open "| git diff-files -z" r]
@@ -258,9 +313,9 @@ proc update_status_stage2 {fd final} {
        fconfigure $fd_di -blocking 0 -translation binary
        fconfigure $fd_df -blocking 0 -translation binary
        fconfigure $fd_lo -blocking 0 -translation binary
-       fileevent $fd_di readable [list read_diff_index $fd_di $final]
-       fileevent $fd_df readable [list read_diff_files $fd_df $final]
-       fileevent $fd_lo readable [list read_ls_others $fd_lo $final]
+       fileevent $fd_di readable [list read_diff_index $fd_di $after]
+       fileevent $fd_df readable [list read_diff_files $fd_df $after]
+       fileevent $fd_lo readable [list read_ls_others $fd_lo $after]
 }
 
 proc load_message {file} {
@@ -280,7 +335,7 @@ proc load_message {file} {
        return 0
 }
 
-proc read_diff_index {fd final} {
+proc read_diff_index {fd after} {
        global buf_rdi
 
        append buf_rdi [read $fd]
@@ -297,7 +352,7 @@ proc read_diff_index {fd final} {
                incr z2 -1
                display_file \
                        [string range $buf_rdi $z1 $z2] \
-                       [string index $buf_rdi [expr $z1 - 2]]_
+                       [string index $buf_rdi [expr {$z1 - 2}]]_
                incr c
        }
        if {$c < $n} {
@@ -306,10 +361,10 @@ proc read_diff_index {fd final} {
                set buf_rdi {}
        }
 
-       status_eof $fd buf_rdi $final
+       rescan_done $fd buf_rdi $after
 }
 
-proc read_diff_files {fd final} {
+proc read_diff_files {fd after} {
        global buf_rdf
 
        append buf_rdf [read $fd]
@@ -326,7 +381,7 @@ proc read_diff_files {fd final} {
                incr z2 -1
                display_file \
                        [string range $buf_rdf $z1 $z2] \
-                       _[string index $buf_rdf [expr $z1 - 2]]
+                       _[string index $buf_rdf [expr {$z1 - 2}]]
                incr c
        }
        if {$c < $n} {
@@ -335,10 +390,10 @@ proc read_diff_files {fd final} {
                set buf_rdf {}
        }
 
-       status_eof $fd buf_rdf $final
+       rescan_done $fd buf_rdf $after
 }
 
-proc read_ls_others {fd final} {
+proc read_ls_others {fd after} {
        global buf_rlo
 
        append buf_rlo [read $fd]
@@ -347,22 +402,50 @@ proc read_ls_others {fd final} {
        foreach p [lrange $pck 0 end-1] {
                display_file $p _O
        }
-       status_eof $fd buf_rlo $final
+       rescan_done $fd buf_rlo $after
 }
 
-proc status_eof {fd buf final} {
-       global status_active ui_status_value
+proc rescan_done {fd buf after} {
+       global rescan_active
+       global file_states repo_config
        upvar $buf to_clear
 
-       if {[eof $fd]} {
-               set to_clear {}
-               close $fd
+       if {![eof $fd]} return
+       set to_clear {}
+       close $fd
+       if {[incr rescan_active -1] > 0} return
 
-               if {[incr status_active -1] == 0} {
-                       display_all_files
-                       unlock_index
-                       reshow_diff
-                       set ui_status_value $final
+       prune_selection
+       unlock_index
+       display_all_files
+
+       if {$repo_config(gui.partialinclude) ne {true}} {
+               set pathList [list]
+               foreach path [array names file_states] {
+                       switch -- [lindex $file_states($path) 0] {
+                       AM -
+                       MM {lappend pathList $path}
+                       }
+               }
+               if {$pathList ne {}} {
+                       update_index \
+                               "Updating included files" \
+                               $pathList \
+                               [concat {reshow_diff;} $after]
+                       return
+               }
+       }
+
+       reshow_diff
+       uplevel #0 $after
+}
+
+proc prune_selection {} {
+       global file_states selected_paths
+
+       foreach path [array names selected_paths] {
+               if {[catch {set still_here $file_states($path)}]} {
+                       unset selected_paths($path)
                }
        }
 }
@@ -388,7 +471,7 @@ proc clear_diff {} {
 proc reshow_diff {} {
        global ui_fname_value ui_status_value file_states
 
-       if {$ui_fname_value == {}
+       if {$ui_fname_value eq {}
                || [catch {set s $file_states($ui_fname_value)}]} {
                clear_diff
        } else {
@@ -401,19 +484,21 @@ proc handle_empty_diff {} {
 
        set path $ui_fname_value
        set s $file_states($path)
-       if {[lindex $s 0] != {_M}} return
+       if {[lindex $s 0] ne {_M}} return
 
        info_popup "No differences detected.
 
 [short_path $path] has no changes.
 
-The modification date of this file was updated by another
-application and you currently have the Trust File Modification
-Timestamps feature enabled, so Git did not automatically detect
-that there are no content differences in this file.
+The modification date of this file was updated
+by another application and you currently have
+the Trust File Modification Timestamps option
+enabled, so Git did not automatically detect
+that there are no content differences in this
+file.
 
-This file will now be removed from the modified files list, to
-prevent possible confusion.
+This file will now be removed from the modified
+files list, to prevent possible confusion.
 "
        if {[catch {exec git update-index -- $path} err]} {
                error_popup "Failed to refresh index:\n\n$err"
@@ -427,20 +512,20 @@ prevent possible confusion.
                        [lreplace $file_lists($old_w) $lno $lno]
                incr lno
                $old_w conf -state normal
-               $old_w delete $lno.0 [expr $lno + 1].0
+               $old_w delete $lno.0 [expr {$lno + 1}].0
                $old_w conf -state disabled
        }
 }
 
 proc show_diff {path {w {}} {lno {}}} {
        global file_states file_lists
-       global PARENT diff_3way diff_active
+       global PARENT diff_3way diff_active repo_config
        global ui_diff ui_fname_value ui_fstatus_value ui_status_value
 
        if {$diff_active || ![lock_index read]} return
 
        clear_diff
-       if {$w == {} || $lno == {}} {
+       if {$w eq {} || $lno == {}} {
                foreach w [array names file_lists] {
                        set lno [lsearch -sorted $file_lists($w) $path]
                        if {$lno >= 0} {
@@ -449,22 +534,28 @@ proc show_diff {path {w {}} {lno {}}} {
                        }
                }
        }
-       if {$w != {} && $lno >= 1} {
-               $w tag add in_diff $lno.0 [expr $lno + 1].0
+       if {$w ne {} && $lno >= 1} {
+               $w tag add in_diff $lno.0 [expr {$lno + 1}].0
        }
 
        set s $file_states($path)
        set m [lindex $s 0]
        set diff_3way 0
        set diff_active 1
-       set ui_fname_value [escape_path $path]
+       set ui_fname_value $path
        set ui_fstatus_value [mapdesc $m $path]
        set ui_status_value "Loading diff of [escape_path $path]..."
 
-       set cmd [list | git diff-index -p $PARENT -- $path]
+       set cmd [list | git diff-index]
+       lappend cmd --no-color
+       if {$repo_config(gui.diffcontext) > 0} {
+               lappend cmd "-U$repo_config(gui.diffcontext)"
+       }
+       lappend cmd -p
+
        switch $m {
        MM {
-               set cmd [list | git diff-index -p -c $PARENT $path]
+               lappend cmd -c
        }
        _O {
                if {[catch {
@@ -488,6 +579,10 @@ proc show_diff {path {w {}} {lno {}}} {
        }
        }
 
+       lappend cmd $PARENT
+       lappend cmd --
+       lappend cmd $path
+
        if {[catch {set fd [open $cmd r]} err]} {
                set diff_active 0
                unlock_index
@@ -502,7 +597,7 @@ proc show_diff {path {w {}} {lno {}}} {
 
 proc read_diff {fd} {
        global ui_diff ui_status_value diff_3way diff_active
-       global cfg_trust_mtime
+       global repo_config
 
        while {[gets $fd line] >= 0} {
                if {[string match {diff --git *} $line]} continue
@@ -550,7 +645,8 @@ proc read_diff {fd} {
                unlock_index
                set ui_status_value {Ready.}
 
-               if {$cfg_trust_mtime && [$ui_diff index end] == {2.0}} {
+               if {$repo_config(gui.trustmtime) eq {true}
+                       && [$ui_diff index end] eq {2.0}} {
                        handle_empty_diff
                }
        }
@@ -563,8 +659,8 @@ proc read_diff {fd} {
 proc load_last_commit {} {
        global HEAD PARENT commit_type ui_comm
 
-       if {$commit_type == {amend}} return
-       if {$commit_type != {normal}} {
+       if {$commit_type eq {amend}} return
+       if {$commit_type ne {normal}} {
                error_popup "Can't amend a $commit_type commit."
                return
        }
@@ -591,7 +687,7 @@ proc load_last_commit {} {
                set commit_type amend
                set HEAD {}
                set PARENT {}
-               update_status
+               rescan {set ui_status_value {Ready.}}
        } elseif {$parent_count == 1} {
                set commit_type amend
                set PARENT $parent
@@ -599,7 +695,7 @@ proc load_last_commit {} {
                $ui_comm insert end $msg
                $ui_comm edit modified false
                $ui_comm edit reset
-               update_status
+               rescan {set ui_status_value {Ready.}}
        } else {
                error_popup {You can't amend a merge commit.}
                return
@@ -607,27 +703,27 @@ proc load_last_commit {} {
 }
 
 proc commit_tree {} {
-       global tcl_platform HEAD gitdir commit_type file_states
-       global commit_active ui_status_value
-       global ui_comm
+       global HEAD commit_type file_states ui_comm repo_config
 
-       if {$commit_active || ![lock_index update]} return
+       if {![lock_index update]} return
 
        # -- Our in memory state should match the repository.
        #
        repository_state curHEAD cur_type
-       if {$commit_type == {amend} 
-               && $cur_type == {normal}
-               && $curHEAD == $HEAD} {
-       } elseif {$commit_type != $cur_type || $HEAD != $curHEAD} {
+       if {$commit_type eq {amend}
+               && $cur_type eq {normal}
+               && $curHEAD eq $HEAD} {
+       } elseif {$commit_type ne $cur_type || $HEAD ne $curHEAD} {
                error_popup {Last scanned state does not match repository state.
 
 Its highly likely that another Git program modified the
-repository since our last scan.  A rescan is required
+repository since the last scan.  A rescan is required
 before committing.
+
+A rescan will be automatically started now.
 }
                unlock_index
-               update_status
+               rescan {set ui_status_value {Ready.}}
                return
        }
 
@@ -635,8 +731,7 @@ before committing.
        #
        set files_ready 0
        foreach path [array names file_states] {
-               set s $file_states($path)
-               switch -glob -- [lindex $s 0] {
+               switch -glob -- [lindex $file_states($path) 0] {
                _? {continue}
                A? -
                D? -
@@ -670,7 +765,7 @@ You must include at least 1 file before you can commit.
        # -- A message is required.
        #
        set msg [string trim [$ui_comm get 1.0 end]]
-       if {$msg == {}} {
+       if {$msg eq {}} {
                error_popup {Please supply a commit message.
 
 A good commit message has the following format:
@@ -683,41 +778,94 @@ A good commit message has the following format:
                return
        }
 
-       # -- Ask the pre-commit hook for the go-ahead.
+       # -- Update included files if partialincludes are off.
        #
+       if {$repo_config(gui.partialinclude) ne {true}} {
+               set pathList [list]
+               foreach path [array names file_states] {
+                       switch -glob -- [lindex $file_states($path) 0] {
+                       A? -
+                       M? {lappend pathList $path}
+                       }
+               }
+               if {$pathList ne {}} {
+                       unlock_index
+                       update_index \
+                               "Updating included files" \
+                               $pathList \
+                               [concat {lock_index update;} \
+                                       [list commit_prehook $curHEAD $msg]]
+                       return
+               }
+       }
+
+       commit_prehook $curHEAD $msg
+}
+
+proc commit_prehook {curHEAD msg} {
+       global tcl_platform gitdir ui_status_value pch_error
+
+       # On Cygwin [file executable] might lie so we need to ask
+       # the shell if the hook is executable.  Yes that's annoying.
+
        set pchook [file join $gitdir hooks pre-commit]
-       if {$tcl_platform(platform) == {windows} && [file isfile $pchook]} {
-               set pchook [list sh -c \
-                       "if test -x \"$pchook\"; then exec \"$pchook\"; fi"]
+       if {$tcl_platform(platform) eq {windows}
+               && [file isfile $pchook]} {
+               set pchook [list sh -c [concat \
+                       "if test -x \"$pchook\";" \
+                       "then exec \"$pchook\" 2>&1;" \
+                       "fi"]]
        } elseif {[file executable $pchook]} {
-               set pchook [list $pchook]
+               set pchook [list $pchook |& cat]
        } else {
-               set pchook {}
+               commit_writetree $curHEAD $msg
+               return
        }
-       if {$pchook != {} && [catch {eval exec $pchook} err]} {
-               hook_failed_popup pre-commit $err
-               unlock_index
+
+       set ui_status_value {Calling pre-commit hook...}
+       set pch_error {}
+       set fd_ph [open "| $pchook" r]
+       fconfigure $fd_ph -blocking 0 -translation binary
+       fileevent $fd_ph readable \
+               [list commit_prehook_wait $fd_ph $curHEAD $msg]
+}
+
+proc commit_prehook_wait {fd_ph curHEAD msg} {
+       global pch_error ui_status_value
+
+       append pch_error [read $fd_ph]
+       fconfigure $fd_ph -blocking 1
+       if {[eof $fd_ph]} {
+               if {[catch {close $fd_ph}]} {
+                       set ui_status_value {Commit declined by pre-commit hook.}
+                       hook_failed_popup pre-commit $pch_error
+                       unlock_index
+               } else {
+                       commit_writetree $curHEAD $msg
+               }
+               set pch_error {}
                return
        }
+       fconfigure $fd_ph -blocking 0
+}
 
-       # -- Write the tree in the background.
-       #
-       set commit_active 1
-       set ui_status_value {Committing changes...}
+proc commit_writetree {curHEAD msg} {
+       global ui_status_value
 
+       set ui_status_value {Committing changes...}
        set fd_wt [open "| git write-tree" r]
-       fileevent $fd_wt readable [list commit_stage2 $fd_wt $curHEAD $msg]
+       fileevent $fd_wt readable \
+               [list commit_committree $fd_wt $curHEAD $msg]
 }
 
-proc commit_stage2 {fd_wt curHEAD msg} {
-       global single_commit gitdir HEAD PARENT commit_type
-       global commit_active ui_status_value ui_comm
-       global file_states
+proc commit_committree {fd_wt curHEAD msg} {
+       global single_commit gitdir HEAD PARENT commit_type tcl_platform
+       global ui_status_value ui_comm
+       global file_states selected_paths
 
        gets $fd_wt tree_id
-       if {$tree_id == {} || [catch {close $fd_wt} err]} {
+       if {$tree_id eq {} || [catch {close $fd_wt} err]} {
                error_popup "write-tree failed:\n\n$err"
-               set commit_active 0
                set ui_status_value {Commit failed.}
                unlock_index
                return
@@ -726,10 +874,10 @@ proc commit_stage2 {fd_wt curHEAD msg} {
        # -- Create the commit.
        #
        set cmd [list git commit-tree $tree_id]
-       if {$PARENT != {}} {
+       if {$PARENT ne {}} {
                lappend cmd -p $PARENT
        }
-       if {$commit_type == {merge}} {
+       if {$commit_type eq {merge}} {
                if {[catch {
                                set fd_mh [open [file join $gitdir MERGE_HEAD] r]
                                while {[gets $fd_mh merge_head] >= 0} {
@@ -738,20 +886,18 @@ proc commit_stage2 {fd_wt curHEAD msg} {
                                close $fd_mh
                        } err]} {
                        error_popup "Loading MERGE_HEAD failed:\n\n$err"
-                       set commit_active 0
                        set ui_status_value {Commit failed.}
                        unlock_index
                        return
                }
        }
-       if {$PARENT == {}} {
+       if {$PARENT eq {}} {
                # git commit-tree writes to stderr during initial commit.
                lappend cmd 2>/dev/null
        }
        lappend cmd << $msg
        if {[catch {set cmt_id [eval exec $cmd]} err]} {
                error_popup "commit-tree failed:\n\n$err"
-               set commit_active 0
                set ui_status_value {Commit failed.}
                unlock_index
                return
@@ -760,19 +906,18 @@ proc commit_stage2 {fd_wt curHEAD msg} {
        # -- Update the HEAD ref.
        #
        set reflogm commit
-       if {$commit_type != {normal}} {
+       if {$commit_type ne {normal}} {
                append reflogm " ($commit_type)"
        }
        set i [string first "\n" $msg]
        if {$i >= 0} {
-               append reflogm {: } [string range $msg 0 [expr $i - 1]]
+               append reflogm {: } [string range $msg 0 [expr {$i - 1}]]
        } else {
                append reflogm {: } $msg
        }
        set cmd [list git update-ref -m $reflogm HEAD $cmt_id $curHEAD]
        if {[catch {eval exec $cmd} err]} {
                error_popup "update-ref failed:\n\n$err"
-               set commit_active 0
                set ui_status_value {Commit failed.}
                unlock_index
                return
@@ -791,6 +936,21 @@ proc commit_stage2 {fd_wt curHEAD msg} {
                catch {exec git rerere}
        }
 
+       # -- Run the post-commit hook.
+       #
+       set pchook [file join $gitdir hooks post-commit]
+       if {$tcl_platform(platform) eq {windows} && [file isfile $pchook]} {
+               set pchook [list sh -c [concat \
+                       "if test -x \"$pchook\";" \
+                       "then exec \"$pchook\";" \
+                       "fi"]]
+       } elseif {![file executable $pchook]} {
+               set pchook {}
+       }
+       if {$pchook ne {}} {
+               catch {exec $pchook &}
+       }
+
        $ui_comm delete 0.0 end
        $ui_comm edit modified false
        $ui_comm edit reset
@@ -799,7 +959,6 @@ proc commit_stage2 {fd_wt curHEAD msg} {
 
        # -- Update status without invoking any git commands.
        #
-       set commit_active 0
        set commit_type normal
        set HEAD $cmt_id
        set PARENT $cmt_id
@@ -813,8 +972,9 @@ proc commit_stage2 {fd_wt curHEAD msg} {
                D? {set m _[string index $m 1]}
                }
 
-               if {$m == {__}} {
+               if {$m eq {__}} {
                        unset file_states($path)
+                       catch {unset selected_paths($path)}
                } else {
                        lset file_states($path) 0 $m
                }
@@ -840,15 +1000,14 @@ proc fetch_from {remote} {
 }
 
 proc pull_remote {remote branch} {
-       global HEAD commit_type
-       global file_states
+       global HEAD commit_type file_states repo_config
 
        if {![lock_index update]} return
 
        # -- Our in memory state should match the repository.
        #
        repository_state curHEAD cur_type
-       if {$commit_type != $cur_type || $HEAD != $curHEAD} {
+       if {$commit_type ne $cur_type || $HEAD ne $curHEAD} {
                error_popup {Last scanned state does not match repository state.
 
 Its highly likely that another Git program modified the
@@ -856,7 +1015,7 @@ repository since our last scan.  A rescan is required
 before a pull can be started.
 }
                unlock_index
-               update_status
+               rescan {set ui_status_value {Ready.}}
                return
        }
 
@@ -877,6 +1036,9 @@ Commit or throw away all changes before starting a pull operation.
        set w [new_console "pull $remote $branch" \
                "Pulling new changes from branch $branch in $remote"]
        set cmd [list git pull]
+       if {$repo_config(gui.pullsummary) eq {false}} {
+               lappend cmd --no-summary
+       }
        lappend cmd $remote
        lappend cmd $branch
        console_exec $w $cmd [list post_pull_remote $remote $branch]
@@ -890,10 +1052,10 @@ proc post_pull_remote {remote branch success} {
        if {$success} {
                repository_state HEAD commit_type
                set PARENT $HEAD
-               set $ui_status_value {Ready.}
+               set $ui_status_value "Pulling $branch from $remote complete."
        } else {
-               update_status \
-                       "Conflicts detected while pulling $branch from $remote."
+               set m "Conflicts detected while pulling $branch from $remote."
+               rescan "set ui_status_value {$m}"
        }
 }
 
@@ -964,15 +1126,15 @@ proc merge_state {path new_state} {
                set icon [lindex $info 1]
        }
 
-       if {$s0 == {_}} {
+       if {$s0 eq {_}} {
                set s0 [string index $state 0]
-       } elseif {$s0 == {*}} {
+       } elseif {$s0 eq {*}} {
                set s0 _
        }
 
-       if {$s1 == {_}} {
+       if {$s1 eq {_}} {
                set s1 [string index $state 1]
-       } elseif {$s1 == {*}} {
+       } elseif {$s1 eq {*}} {
                set s1 _
        }
 
@@ -981,10 +1143,10 @@ proc merge_state {path new_state} {
 }
 
 proc display_file {path state} {
-       global file_states file_lists status_active
+       global file_states file_lists selected_paths rescan_active
 
        set old_m [merge_state $path $state]
-       if {$status_active} return
+       if {$rescan_active > 0} return
 
        set s $file_states($path)
        set new_m [lindex $s 0]
@@ -992,12 +1154,12 @@ proc display_file {path state} {
        set old_w [mapcol $old_m $path]
        set new_icon [mapicon $new_m $path]
 
-       if {$new_w != $old_w} {
+       if {$new_w ne $old_w} {
                set lno [lsearch -sorted $file_lists($old_w) $path]
                if {$lno >= 0} {
                        incr lno
                        $old_w conf -state normal
-                       $old_w delete $lno.0 [expr $lno + 1].0
+                       $old_w delete $lno.0 [expr {$lno + 1}].0
                        $old_w conf -state disabled
                }
 
@@ -1011,8 +1173,14 @@ proc display_file {path state} {
                        -name [lindex $s 1] \
                        -image $new_icon
                $new_w insert $lno.1 "[escape_path $path]\n"
+               if {[catch {set in_sel $selected_paths($path)}]} {
+                       set in_sel 0
+               }
+               if {$in_sel} {
+                       $new_w tag add in_sel $lno.0 [expr {$lno + 1}].0
+               }
                $new_w conf -state disabled
-       } elseif {$new_icon != [mapicon $old_m $path]} {
+       } elseif {$new_icon ne [mapicon $old_m $path]} {
                $new_w conf -state normal
                $new_w image conf [lindex $s 1] -image $new_icon
                $new_w conf -state disabled
@@ -1020,13 +1188,16 @@ proc display_file {path state} {
 }
 
 proc display_all_files {} {
-       global ui_index ui_other file_states file_lists
+       global ui_index ui_other
+       global file_states file_lists
+       global last_clicked selected_paths
 
        $ui_index conf -state normal
        $ui_other conf -state normal
 
        $ui_index delete 0.0 end
        $ui_other delete 0.0 end
+       set last_clicked {}
 
        set file_lists($ui_index) [list]
        set file_lists($ui_other) [list]
@@ -1036,66 +1207,105 @@ proc display_all_files {} {
                set m [lindex $s 0]
                set w [mapcol $m $path]
                lappend file_lists($w) $path
+               set lno [expr {[lindex [split [$w index end] .] 0] - 1}]
                $w image create end \
                        -align center -padx 5 -pady 1 \
                        -name [lindex $s 1] \
                        -image [mapicon $m $path]
                $w insert end "[escape_path $path]\n"
+               if {[catch {set in_sel $selected_paths($path)}]} {
+                       set in_sel 0
+               }
+               if {$in_sel} {
+                       $w tag add in_sel $lno.0 [expr {$lno + 1}].0
+               }
        }
 
        $ui_index conf -state disabled
        $ui_other conf -state disabled
 }
 
-proc with_update_index {body} {
-       global update_index_fd
+proc update_index {msg pathList after} {
+       global update_index_cp update_index_rsd ui_status_value
+
+       if {![lock_index update]} return
+
+       set update_index_cp 0
+       set update_index_rsd 0
+       set pathList [lsort $pathList]
+       set totalCnt [llength $pathList]
+       set batch [expr {int($totalCnt * .01) + 1}]
+       if {$batch > 25} {set batch 25}
+
+       set ui_status_value [format \
+               "$msg... %i/%i files (%.2f%%)" \
+               $update_index_cp \
+               $totalCnt \
+               0.0]
+       set fd [open "| git update-index --add --remove -z --stdin" w]
+       fconfigure $fd \
+               -blocking 0 \
+               -buffering full \
+               -buffersize 512 \
+               -translation binary
+       fileevent $fd writable [list \
+               write_update_index \
+               $fd \
+               $pathList \
+               $totalCnt \
+               $batch \
+               $msg \
+               $after \
+               ]
+}
+
+proc write_update_index {fd pathList totalCnt batch msg after} {
+       global update_index_cp update_index_rsd ui_status_value
+       global file_states ui_fname_value
 
-       if {$update_index_fd == {}} {
-               if {![lock_index update]} return
-               set update_index_fd [open \
-                       "| git update-index --add --remove -z --stdin" \
-                       w]
-               fconfigure $update_index_fd -translation binary
-               uplevel 1 $body
-               close $update_index_fd
-               set update_index_fd {}
+       if {$update_index_cp >= $totalCnt} {
+               close $fd
                unlock_index
-       } else {
-               uplevel 1 $body
+               if {$update_index_rsd} reshow_diff
+               uplevel #0 $after
+               return
        }
-}
 
-proc update_index {path} {
-       global update_index_fd
+       for {set i $batch} \
+               {$update_index_cp < $totalCnt && $i > 0} \
+               {incr i -1} {
+               set path [lindex $pathList $update_index_cp]
+               incr update_index_cp
 
-       if {$update_index_fd == {}} {
-               error {not in with_update_index}
-       } else {
-               puts -nonewline $update_index_fd "$path\0"
-       }
-}
+               switch -glob -- [lindex $file_states($path) 0] {
+               AD -
+               MD -
+               _D {set new D*}
 
-proc toggle_mode {path} {
-       global file_states ui_fname_value
+               _M -
+               MM -
+               M_ {set new M*}
 
-       set s $file_states($path)
-       set m [lindex $s 0]
+               _O -
+               AM -
+               A_ {set new A*}
 
-       switch -- $m {
-       AM -
-       _O {set new A*}
-       _M -
-       MM {set new M*}
-       AD -
-       _D {set new D*}
-       default {return}
-       }
+               ?? {continue}
+               }
 
-       with_update_index {update_index $path}
-       display_file $path $new
-       if {$ui_fname_value == $path} {
-               show_diff $path
+               puts -nonewline $fd $path
+               puts -nonewline $fd "\0"
+               display_file $path $new
+               if {$ui_fname_value eq $path} {
+                       set update_index_rsd 1
+               }
        }
+
+       set ui_status_value [format \
+               "$msg... %i/%i files (%.2f%%)" \
+               $update_index_cp \
+               $totalCnt \
+               [expr {100.0 * $update_index_cp / $totalCnt}]]
 }
 
 ######################################################################
@@ -1139,8 +1349,8 @@ proc populate_pull_menu {m} {
 
        foreach remote $all_remotes {
                set rb {}
-               if {[array get repo_config remote.$remote.url] != {}} {
-                       if {[array get repo_config remote.$remote.fetch] != {}} {
+               if {[array get repo_config remote.$remote.url] ne {}} {
+                       if {[array get repo_config remote.$remote.fetch] ne {}} {
                                regexp {^([^:]+):} \
                                        [lindex $repo_config(remote.$remote.fetch) 0] \
                                        line rb
@@ -1159,7 +1369,7 @@ proc populate_pull_menu {m} {
 
                set rb_short $rb
                regsub ^refs/heads/ $rb {} rb_short
-               if {$rb_short != {}} {
+               if {$rb_short ne {}} {
                        $m add command \
                                -label "Branch $rb_short from $remote..." \
                                -command [list pull_remote $remote $rb] \
@@ -1252,17 +1462,17 @@ set max_status_desc 0
 foreach i {
                {__ i plain    "Unmodified"}
                {_M i mod      "Modified"}
-               {M_ i fulltick "Checked in"}
+               {M_ i fulltick "Included in commit"}
                {MM i parttick "Partially included"}
 
                {_O o plain    "Untracked"}
-               {A_ o fulltick "Added"}
+               {A_ o fulltick "Added by commit"}
                {AM o parttick "Partially added"}
                {AD o question "Added (but now gone)"}
 
                {_D i question "Missing"}
-               {D_ i removed  "Removed"}
-               {DD i removed  "Removed"}
+               {D_ i removed  "Removed by commit"}
+               {DD i removed  "Removed by commit"}
                {DO i removed  "Removed (still exists)"}
 
                {UM i merge    "Merge conflicts"}
@@ -1271,7 +1481,7 @@ foreach i {
        if {$max_status_desc < [string length [lindex $i 3]]} {
                set max_status_desc [string length [lindex $i 3]]
        }
-       if {[lindex $i 1] == {i}} {
+       if {[lindex $i 1] eq {i}} {
                set all_cols([lindex $i 0]) $ui_index
        } else {
                set all_cols([lindex $i 0]) $ui_other
@@ -1287,8 +1497,8 @@ unset filemask i
 
 proc is_MacOSX {} {
        global tcl_platform tk_library
-       if {$tcl_platform(platform) == {unix}
-               && $tcl_platform(os) == {Darwin}
+       if {$tcl_platform(platform) eq {unix}
+               && $tcl_platform(os) eq {Darwin}
                && [string match /Library/Frameworks/* $tk_library]} {
                return 1
        }
@@ -1314,7 +1524,6 @@ proc hook_failed_popup {hook msg} {
 
        set w .hookfail
        toplevel $w
-       wm transient $w .
 
        frame $w.m
        label $w.m.l1 -text "$hook hook failed:" \
@@ -1346,7 +1555,7 @@ proc hook_failed_popup {hook msg} {
                -width 15 \
                -font font_ui \
                -command "destroy $w"
-       pack $w.ok -side bottom
+       pack $w.ok -side bottom -anchor e -pady 10 -padx 10
 
        bind $w <Visibility> "grab $w; focus $w"
        bind $w <Key-Return> "destroy $w"
@@ -1383,7 +1592,8 @@ proc console_init {w} {
                -font font_diff \
                -state disabled \
                -yscrollcommand [list $w.m.sby set]
-       label $w.m.s -anchor w \
+       label $w.m.s -text {Working... please wait...} \
+               -anchor w \
                -justify left \
                -font font_uibold
        scrollbar $w.m.sby -command [list $w.m.t yview]
@@ -1408,12 +1618,11 @@ proc console_init {w} {
                        $w.m.t tag remove sel 0.0 end
                "
 
-       button $w.ok -text {Running...} \
-               -width 15 \
+       button $w.ok -text {Close} \
                -font font_ui \
                -state disabled \
                -command "destroy $w"
-       pack $w.ok -side bottom
+       pack $w.ok -side bottom -anchor e -pady 10 -padx 10
 
        bind_button3 $w.m.t "tk_popup $w.ctxm %X %Y"
        bind $w.m.t <$M1B-Key-a> "$w.m.t tag add sel 0.0 end;break"
@@ -1431,7 +1640,7 @@ proc console_exec {w cmd {after {}}} {
        # -- Windows tosses the enviroment when we exec our child.
        #    But most users need that so we have to relogin. :-(
        #
-       if {$tcl_platform(platform) == {windows}} {
+       if {$tcl_platform(platform) eq {windows}} {
                set cmd [list sh --login -c "cd \"[pwd]\" && [join $cmd { }]"]
        }
 
@@ -1449,7 +1658,7 @@ proc console_read {w fd after} {
        global console_cr console_data
 
        set buf [read $fd]
-       if {$buf != {}} {
+       if {$buf ne {}} {
                if {![winfo exists $w]} {console_init $w}
                $w.m.t conf -state normal
                set c 0
@@ -1457,8 +1666,8 @@ proc console_read {w fd after} {
                while {$c < $n} {
                        set cr [string first "\r" $buf $c]
                        set lf [string first "\n" $buf $c]
-                       if {$cr < 0} {set cr [expr $n + 1]}
-                       if {$lf < 0} {set lf [expr $n + 1]}
+                       if {$cr < 0} {set cr [expr {$n + 1}]}
+                       if {$lf < 0} {set lf [expr {$n + 1}]}
 
                        if {$lf < $cr} {
                                $w.m.t insert end [string range $buf $c $lf]
@@ -1482,18 +1691,16 @@ proc console_read {w fd after} {
                if {[catch {close $fd}]} {
                        if {![winfo exists $w]} {console_init $w}
                        $w.m.s conf -background red -text {Error: Command Failed}
-                       $w.ok conf -text Close
                        $w.ok conf -state normal
                        set ok 0
                } elseif {[winfo exists $w]} {
                        $w.m.s conf -background green -text {Success}
-                       $w.ok conf -text Close
                        $w.ok conf -state normal
                        set ok 1
                }
                array unset console_cr $w
                array unset console_data $w
-               if {$after != {}} {
+               if {$after ne {}} {
                        uplevel #0 $after $ok
                }
                return
@@ -1512,12 +1719,12 @@ proc do_gitk {} {
 
        set ui_status_value $starting_gitk_msg
        after 10000 {
-               if {$ui_status_value == $starting_gitk_msg} {
+               if {$ui_status_value eq $starting_gitk_msg} {
                        set ui_status_value {Ready.}
                }
        }
 
-       if {$tcl_platform(platform) == {windows}} {
+       if {$tcl_platform(platform) eq {windows}} {
                exec sh -c gitk &
        } else {
                exec gitk &
@@ -1535,53 +1742,68 @@ proc do_repack {} {
 set is_quitting 0
 
 proc do_quit {} {
-       global gitdir ui_comm is_quitting
+       global gitdir ui_comm is_quitting repo_config
 
        if {$is_quitting} return
        set is_quitting 1
 
+       # -- Stash our current commit buffer.
+       #
        set save [file join $gitdir GITGUI_MSG]
        set msg [string trim [$ui_comm get 0.0 end]]
-       if {[$ui_comm edit modified] && $msg != {}} {
+       if {[$ui_comm edit modified] && $msg ne {}} {
                catch {
                        set fd [open $save w]
                        puts $fd [string trim [$ui_comm get 0.0 end]]
                        close $fd
                }
-       } elseif {$msg == {} && [file exists $save]} {
+       } elseif {$msg eq {} && [file exists $save]} {
                file delete $save
        }
 
-       save_my_config
+       # -- Stash our current window geometry into this repository.
+       #
+       set cfg_geometry [list]
+       lappend cfg_geometry [wm geometry .]
+       lappend cfg_geometry [lindex [.vpane sash coord 0] 1]
+       lappend cfg_geometry [lindex [.vpane.files sash coord 0] 0]
+       if {[catch {set rc_geometry $repo_config(gui.geometry)}]} {
+               set rc_geometry {}
+       }
+       if {$cfg_geometry ne $rc_geometry} {
+               catch {exec git repo-config gui.geometry $cfg_geometry}
+       }
+
        destroy .
 }
 
 proc do_rescan {} {
-       update_status
+       rescan {set ui_status_value {Ready.}}
 }
 
 proc do_include_all {} {
-       global update_active ui_status_value
-
-       if {$update_active || ![lock_index begin-update]} return
-
-       set update_active 1
-       set ui_status_value {Including all modified files...}
-       after 1 {
-               with_update_index {
-                       foreach path [array names file_states] {
-                               set s $file_states($path)
-                               set m [lindex $s 0]
-                               switch -- $m {
-                               AM -
-                               MM -
-                               _M -
-                               _D {toggle_mode $path}
-                               }
-                       }
+       global file_states
+
+       if {![lock_index begin-update]} return
+
+       set pathList [list]
+       foreach path [array names file_states] {
+               set s $file_states($path)
+               set m [lindex $s 0]
+               switch -- $m {
+               AM -
+               MM -
+               _M -
+               _D {lappend pathList $path}
                }
-               set update_active 0
-               set ui_status_value {Ready.}
+       }
+       if {$pathList eq {}} {
+               unlock_index
+       } else {
+               update_index \
+                       "Including all modified files" \
+                       $pathList \
+                       {set ui_status_value {Ready to commit.}}
        }
 }
 
@@ -1590,7 +1812,7 @@ set GIT_COMMITTER_IDENT {}
 proc do_signoff {} {
        global ui_comm GIT_COMMITTER_IDENT
 
-       if {$GIT_COMMITTER_IDENT == {}} {
+       if {$GIT_COMMITTER_IDENT eq {}} {
                if {[catch {set me [exec git var GIT_COMMITTER_IDENT]} err]} {
                        error_popup "Unable to obtain your identity:\n\n$err"
                        return
@@ -1604,9 +1826,9 @@ proc do_signoff {} {
 
        set sob "Signed-off-by: $GIT_COMMITTER_IDENT"
        set last [$ui_comm get {end -1c linestart} {end -1c}]
-       if {$last != $sob} {
+       if {$last ne $sob} {
                $ui_comm edit separator
-               if {$last != {}
+               if {$last ne {}
                        && ![regexp {^[A-Z][A-Za-z]*-[A-Za-z-]+: *} $last]} {
                        $ui_comm insert end "\n"
                }
@@ -1624,39 +1846,248 @@ proc do_commit {} {
        commit_tree
 }
 
-# shift == 1: left click
-#          3: right click  
-proc click {w x y shift wx wy} {
-       global ui_index ui_other file_lists
+proc do_options {} {
+       global appname gitdir font_descs
+       global repo_config global_config
+       global repo_config_new global_config_new
+
+       array unset repo_config_new
+       array unset global_config_new
+       foreach name [array names repo_config] {
+               set repo_config_new($name) $repo_config($name)
+       }
+       load_config 1
+       foreach name [array names repo_config] {
+               switch -- $name {
+               gui.diffcontext {continue}
+               }
+               set repo_config_new($name) $repo_config($name)
+       }
+       foreach name [array names global_config] {
+               set global_config_new($name) $global_config($name)
+       }
+       set reponame [lindex [file split \
+               [file normalize [file dirname $gitdir]]] \
+               end]
+
+       set w .options_editor
+       toplevel $w
+       wm geometry $w "+[winfo rootx .]+[winfo rooty .]"
+
+       label $w.header -text "$appname Options" \
+               -font font_uibold
+       pack $w.header -side top -fill x
+
+       frame $w.buttons
+       button $w.buttons.restore -text {Restore Defaults} \
+               -font font_ui \
+               -command do_restore_defaults
+       pack $w.buttons.restore -side left
+       button $w.buttons.save -text Save \
+               -font font_ui \
+               -command [list do_save_config $w]
+       pack $w.buttons.save -side right
+       button $w.buttons.cancel -text {Cancel} \
+               -font font_ui \
+               -command [list destroy $w]
+       pack $w.buttons.cancel -side right
+       pack $w.buttons -side bottom -fill x -pady 10 -padx 10
+
+       labelframe $w.repo -text "$reponame Repository" \
+               -font font_ui \
+               -relief raised -borderwidth 2
+       labelframe $w.global -text {Global (All Repositories)} \
+               -font font_ui \
+               -relief raised -borderwidth 2
+       pack $w.repo -side left -fill both -expand 1 -pady 5 -padx 5
+       pack $w.global -side right -fill both -expand 1 -pady 5 -padx 5
+
+       foreach option {
+               {b partialinclude {Allow Partially Included Files}}
+               {b pullsummary {Show Pull Summary}}
+               {b trustmtime  {Trust File Modification Timestamps}}
+               {i diffcontext {Number of Diff Context Lines}}
+               } {
+               set type [lindex $option 0]
+               set name [lindex $option 1]
+               set text [lindex $option 2]
+               foreach f {repo global} {
+                       switch $type {
+                       b {
+                               checkbutton $w.$f.$name -text $text \
+                                       -variable ${f}_config_new(gui.$name) \
+                                       -onvalue true \
+                                       -offvalue false \
+                                       -font font_ui
+                               pack $w.$f.$name -side top -anchor w
+                       }
+                       i {
+                               frame $w.$f.$name
+                               label $w.$f.$name.l -text "$text:" -font font_ui
+                               pack $w.$f.$name.l -side left -anchor w -fill x
+                               spinbox $w.$f.$name.v \
+                                       -textvariable ${f}_config_new(gui.$name) \
+                                       -from 1 -to 99 -increment 1 \
+                                       -width 3 \
+                                       -font font_ui
+                               pack $w.$f.$name.v -side right -anchor e
+                               pack $w.$f.$name -side top -anchor w -fill x
+                       }
+                       }
+               }
+       }
+
+       set all_fonts [lsort [font families]]
+       foreach option $font_descs {
+               set name [lindex $option 0]
+               set font [lindex $option 1]
+               set text [lindex $option 2]
+
+               set global_config_new(gui.$font^^family) \
+                       [font configure $font -family]
+               set global_config_new(gui.$font^^size) \
+                       [font configure $font -size]
+
+               frame $w.global.$name
+               label $w.global.$name.l -text "$text:" -font font_ui
+               pack $w.global.$name.l -side left -anchor w -fill x
+               eval tk_optionMenu $w.global.$name.family \
+                       global_config_new(gui.$font^^family) \
+                       $all_fonts
+               spinbox $w.global.$name.size \
+                       -textvariable global_config_new(gui.$font^^size) \
+                       -from 2 -to 80 -increment 1 \
+                       -width 3 \
+                       -font font_ui
+               pack $w.global.$name.size -side right -anchor e
+               pack $w.global.$name.family -side right -anchor e
+               pack $w.global.$name -side top -anchor w -fill x
+       }
+
+       bind $w <Visibility> "grab $w; focus $w"
+       bind $w <Key-Escape> "destroy $w"
+       wm title $w "$appname ($reponame): Options"
+       tkwait window $w
+}
+
+proc do_restore_defaults {} {
+       global font_descs default_config repo_config
+       global repo_config_new global_config_new
+
+       foreach name [array names default_config] {
+               set repo_config_new($name) $default_config($name)
+               set global_config_new($name) $default_config($name)
+       }
+
+       foreach option $font_descs {
+               set name [lindex $option 0]
+               set repo_config(gui.$name) $default_config(gui.$name)
+       }
+       apply_config
+
+       foreach option $font_descs {
+               set name [lindex $option 0]
+               set font [lindex $option 1]
+               set global_config_new(gui.$font^^family) \
+                       [font configure $font -family]
+               set global_config_new(gui.$font^^size) \
+                       [font configure $font -size]
+       }
+}
+
+proc do_save_config {w} {
+       if {[catch {save_config} err]} {
+               error_popup "Failed to completely save options:\n\n$err"
+       }
+       reshow_diff
+       destroy $w
+}
+
+proc toggle_or_diff {w x y} {
+       global file_lists ui_index ui_other
+       global last_clicked selected_paths
 
        set pos [split [$w index @$x,$y] .]
        set lno [lindex $pos 0]
        set col [lindex $pos 1]
-       set path [lindex $file_lists($w) [expr $lno - 1]]
-       if {$path == {}} return
+       set path [lindex $file_lists($w) [expr {$lno - 1}]]
+       if {$path eq {}} {
+               set last_clicked {}
+               return
+       }
+
+       set last_clicked [list $w $lno]
+       array unset selected_paths
+       $ui_index tag remove in_sel 0.0 end
+       $ui_other tag remove in_sel 0.0 end
 
-       if {$col > 0 && $shift == 1} {
+       if {$col == 0} {
+               update_index \
+                       "Including [short_path $path]" \
+                       [list $path] \
+                       {set ui_status_value {Ready.}}
+       } else {
                show_diff $path $w $lno
        }
 }
 
-proc unclick {w x y} {
+proc add_one_to_selection {w x y} {
        global file_lists
+       global last_clicked selected_paths
 
        set pos [split [$w index @$x,$y] .]
        set lno [lindex $pos 0]
        set col [lindex $pos 1]
-       set path [lindex $file_lists($w) [expr $lno - 1]]
-       if {$path == {}} return
+       set path [lindex $file_lists($w) [expr {$lno - 1}]]
+       if {$path eq {}} {
+               set last_clicked {}
+               return
+       }
 
-       if {$col == 0} {
-               toggle_mode $path
+       set last_clicked [list $w $lno]
+       if {[catch {set in_sel $selected_paths($path)}]} {
+               set in_sel 0
+       }
+       if {$in_sel} {
+               unset selected_paths($path)
+               $w tag remove in_sel $lno.0 [expr {$lno + 1}].0
+       } else {
+               set selected_paths($path) 1
+               $w tag add in_sel $lno.0 [expr {$lno + 1}].0
        }
 }
 
+proc add_range_to_selection {w x y} {
+       global file_lists
+       global last_clicked selected_paths
+
+       if {[lindex $last_clicked 0] ne $w} {
+               toggle_or_diff $w $x $y
+               return
+       }
+
+       set pos [split [$w index @$x,$y] .]
+       set lno [lindex $pos 0]
+       set lc [lindex $last_clicked 1]
+       if {$lc < $lno} {
+               set begin $lc
+               set end $lno
+       } else {
+               set begin $lno
+               set end $lc
+       }
+
+       foreach path [lrange $file_lists($w) \
+               [expr {$begin - 1}] \
+               [expr {$end - 1}]] {
+               set selected_paths($path) 1
+       }
+       $w tag add in_sel $begin.0 [expr {$end + 1}].0
+}
+
 ######################################################################
 ##
-## ui init
+## config defaults
 
 set cursor_ptr arrow
 font create font_diff -family Courier -size 10
@@ -1667,14 +2098,12 @@ catch {
        destroy .dummy
 }
 
-eval font create font_uibold [font configure font_ui]
-font configure font_uibold -weight bold
-eval font create font_diffbold [font configure font_diff]
-font configure font_diffbold -weight bold
+font create font_uibold
+font create font_diffbold
 
 set M1B M1
 set M1T M1
-if {$tcl_platform(platform) == {windows}} {
+if {$tcl_platform(platform) eq {windows}} {
        set M1B Control
        set M1T Ctrl
 } elseif {[is_MacOSX]} {
@@ -1682,15 +2111,53 @@ if {$tcl_platform(platform) == {windows}} {
        set M1T Cmd
 }
 
+proc apply_config {} {
+       global repo_config font_descs
+
+       foreach option $font_descs {
+               set name [lindex $option 0]
+               set font [lindex $option 1]
+               if {[catch {
+                       foreach {cn cv} $repo_config(gui.$name) {
+                               font configure $font $cn $cv
+                       }
+                       } err]} {
+                       error_popup "Invalid font specified in gui.$name:\n\n$err"
+               }
+               foreach {cn cv} [font configure $font] {
+                       font configure ${font}bold $cn $cv
+               }
+               font configure ${font}bold -weight bold
+       }
+}
+
+set default_config(gui.trustmtime) false
+set default_config(gui.pullsummary) true
+set default_config(gui.partialinclude) false
+set default_config(gui.diffcontext) 5
+set default_config(gui.fontui) [font configure font_ui]
+set default_config(gui.fontdiff) [font configure font_diff]
+set font_descs {
+       {fontui   font_ui   {Main Font}}
+       {fontdiff font_diff {Diff/Console Font}}
+}
+load_config 0
+apply_config
+
+######################################################################
+##
+## ui construction
+
 # -- Menu Bar
 menu .mbar -tearoff 0
 .mbar add cascade -label Project -menu .mbar.project
 .mbar add cascade -label Edit -menu .mbar.edit
 .mbar add cascade -label Commit -menu .mbar.commit
-.mbar add cascade -label Fetch -menu .mbar.fetch
-.mbar add cascade -label Pull -menu .mbar.pull
-.mbar add cascade -label Push -menu .mbar.push
-.mbar add cascade -label Options -menu .mbar.options
+if {!$single_commit} {
+       .mbar add cascade -label Fetch -menu .mbar.fetch
+       .mbar add cascade -label Pull -menu .mbar.pull
+       .mbar add cascade -label Push -menu .mbar.push
+}
 . configure -menu .mbar
 
 # -- Project Menu
@@ -1698,9 +2165,11 @@ menu .mbar.project
 .mbar.project add command -label Visualize \
        -command do_gitk \
        -font font_ui
-.mbar.project add command -label {Repack Database} \
-       -command do_repack \
-       -font font_ui
+if {!$single_commit} {
+       .mbar.project add command -label {Repack Database} \
+               -command do_repack \
+               -font font_ui
+}
 .mbar.project add command -label Quit \
        -command do_quit \
        -accelerator $M1T-Q \
@@ -1739,6 +2208,10 @@ menu .mbar.edit
        -command {catch {[focus] tag add sel 0.0 end}} \
        -accelerator $M1T-A \
        -font font_ui
+.mbar.edit add separator
+.mbar.edit add command -label {Options...} \
+       -command do_options \
+       -font font_ui
 
 # -- Commit Menu
 menu .mbar.commit
@@ -1770,23 +2243,16 @@ lappend disable_on_lock \
 lappend disable_on_lock \
        [list .mbar.commit entryconf [.mbar.commit index last] -state]
 
-# -- Fetch Menu
-menu .mbar.fetch
+if {!$single_commit} {
+       # -- Fetch Menu
+       menu .mbar.fetch
 
-# -- Pull Menu
-menu .mbar.pull
+       # -- Pull Menu
+       menu .mbar.pull
 
-# -- Push Menu
-menu .mbar.push
-
-# -- Options Menu
-menu .mbar.options
-.mbar.options add checkbutton \
-       -label {Trust File Modification Timestamps} \
-       -font font_ui \
-       -offvalue false \
-       -onvalue true \
-       -variable cfg_trust_mtime
+       # -- Push Menu
+       menu .mbar.push
+}
 
 # -- Main Window Layout
 panedwindow .vpane -orient vertical
@@ -1828,11 +2294,16 @@ pack .vpane.files.other.sb -side right -fill y
 pack $ui_other -side left -fill both -expand 1
 .vpane.files add .vpane.files.other -sticky nsew
 
-$ui_index tag conf in_diff -font font_uibold
-$ui_other tag conf in_diff -font font_uibold
+foreach i [list $ui_index $ui_other] {
+       $i tag conf in_diff -font font_uibold
+       $i tag conf in_sel \
+               -background [$i cget -foreground] \
+               -foreground [$i cget -background]
+}
+unset i
 
 # -- Diff and Commit Area
-frame .vpane.lower -height 400 -width 400
+frame .vpane.lower -height 300 -width 400
 frame .vpane.lower.commarea
 frame .vpane.lower.diff -relief sunken -borderwidth 1
 pack .vpane.lower.commarea -side top -fill x
@@ -1947,27 +2418,37 @@ bind_button3 $ui_comm "tk_popup $ui_comm.ctxm %X %Y"
 set ui_fname_value {}
 set ui_fstatus_value {}
 frame .vpane.lower.diff.header -background orange
-label .vpane.lower.diff.header.l1 -text {File:} \
-       -background orange \
-       -font font_ui
-label .vpane.lower.diff.header.l2 -textvariable ui_fname_value \
+label .vpane.lower.diff.header.l4 \
+       -textvariable ui_fstatus_value \
        -background orange \
+       -width $max_status_desc \
        -anchor w \
        -justify left \
        -font font_ui
-label .vpane.lower.diff.header.l3 -text {Status:} \
+label .vpane.lower.diff.header.l1 -text {File:} \
        -background orange \
        -font font_ui
-label .vpane.lower.diff.header.l4 -textvariable ui_fstatus_value \
+set ui_fname .vpane.lower.diff.header.l2
+label $ui_fname \
+       -textvariable ui_fname_value \
        -background orange \
-       -width $max_status_desc \
        -anchor w \
        -justify left \
        -font font_ui
+menu $ui_fname.ctxm -tearoff 0
+$ui_fname.ctxm add command -label "Copy" \
+       -font font_ui \
+       -command {
+               clipboard clear
+               clipboard append \
+                       -format STRING \
+                       -type STRING \
+                       -- $ui_fname_value
+       }
+bind_button3 $ui_fname "tk_popup $ui_fname.ctxm %X %Y"
+pack .vpane.lower.diff.header.l4 -side left
 pack .vpane.lower.diff.header.l1 -side left
-pack .vpane.lower.diff.header.l2 -side left -fill x
-pack .vpane.lower.diff.header.l4 -side right
-pack .vpane.lower.diff.header.l3 -side right
+pack $ui_fname -fill x
 
 # -- Diff Body
 frame .vpane.lower.diff.body
@@ -2018,6 +2499,24 @@ $ui_diff.ctxm add command -label "Decrease Font Size" \
 $ui_diff.ctxm add command -label "Increase Font Size" \
        -font font_ui \
        -command {incr_font_size font_diff 1}
+$ui_diff.ctxm add separator
+$ui_diff.ctxm add command -label "Show Less Context" \
+       -font font_ui \
+       -command {if {$ui_fname_value ne {}
+               && $repo_config(gui.diffcontext) >= 2} {
+               incr repo_config(gui.diffcontext) -1
+               reshow_diff
+       }}
+$ui_diff.ctxm add command -label "Show More Context" \
+       -font font_ui \
+       -command {if {$ui_fname_value ne {}} {
+               incr repo_config(gui.diffcontext)
+               reshow_diff
+       }}
+$ui_diff.ctxm add separator
+$ui_diff.ctxm add command -label {Options...} \
+       -font font_ui \
+       -command do_options
 bind_button3 $ui_diff "tk_popup $ui_diff.ctxm %X %Y"
 
 # -- Status Bar
@@ -2032,7 +2531,7 @@ pack .status -anchor w -side bottom -fill x
 
 # -- Load geometry
 catch {
-set gm [lindex $repo_config(gui.geometry) 0]
+set gm $repo_config(gui.geometry)
 wm geometry . [lindex $gm 0]
 .vpane sash place 0 \
        [lindex [.vpane sash coord 0] 0] \
@@ -2083,9 +2582,9 @@ bind all <$M1B-Key-Q> do_quit
 bind all <$M1B-Key-w> {destroy [winfo toplevel %W]}
 bind all <$M1B-Key-W> {destroy [winfo toplevel %W]}
 foreach i [list $ui_index $ui_other] {
-       bind $i <Button-1> {click %W %x %y 1 %X %Y; break}
-       bind $i <ButtonRelease-1> {unclick %W %x %y; break}
-       bind_button3 $i {click %W %x %y 3 %X %Y; break}
+       bind $i <Button-1>       "toggle_or_diff         $i %x %y; break"
+       bind $i <$M1B-Button-1>  "add_one_to_selection   $i %x %y; break"
+       bind $i <Shift-Button-1> "add_range_to_selection $i %x %y; break"
 }
 unset i
 
@@ -2094,8 +2593,10 @@ set file_lists($ui_other) [list]
 
 wm title . "$appname ([file normalize [file dirname $gitdir]])"
 focus -force $ui_comm
-load_all_remotes
-populate_remote_menu .mbar.fetch From fetch_from
-populate_remote_menu .mbar.push To push_to
-populate_pull_menu .mbar.pull
-update_status
+if {!$single_commit} {
+       load_all_remotes
+       populate_remote_menu .mbar.fetch From fetch_from
+       populate_remote_menu .mbar.push To push_to
+       populate_pull_menu .mbar.pull
+}
+after 1 do_rescan