git-gui: Save window geometry to .git/config during exit.

I started to find it very annoying that my test application kept
opening at the wrong location on my desktop, so now we save the
basic window geometry and sash positions into the config file as
gui.geometry.
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

git-gui

@@ -7,6 +7,86 @@ exec wish "$0" -- "$@"
 # and distributed under the terms of the GNU General Public Licence,
 # either version 2, or (at your option) any later version.
 
+######################################################################
+##
+## config
+
+proc load_repo_config {} {
+	global repo_config
+	global cfg_trust_mtime
+
+	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
+			}
+		}
+		close $fd_rc
+	}
+
+	if {[catch {set cfg_trust_mtime \
+			[lindex $repo_config(gui.trustmtime) 0]
+		}]} {
+		set cfg_trust_mtime false
+	}
+}
+
+proc save_my_config {} {
+	global repo_config
+	global cfg_trust_mtime
+
+	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]
+	}
+
+	set cfg_geometry [list \
+		[wm geometry .] \
+		[.vpane sash coord 0] \
+		[.vpane.files sash coord 0] \
+		]
+	if {[catch {set rc_geometry $repo_config(gui.geometry)}]} {
+		set rc_geometry [list [list]]
+	}
+	if {$cfg_geometry != [lindex $rc_geometry 0]} {
+		exec git repo-config gui.geometry $cfg_geometry
+		set repo_config(gui.geometry) [list $cfg_geometry]
+	}
+}
+
+######################################################################
+##
+## repository setup
+
+set appname [lindex [file split $argv0] end]
+set gitdir {}
+set GIT_COMMITTER_IDENT {}
+
+if {[catch {set cdup [exec git rev-parse --show-cdup]} err]} {
+	show_msg {} . "Cannot find the git directory: $err"
+	exit 1
+}
+if {$cdup != ""} {
+	cd $cdup
+}
+unset cdup
+
+if {[catch {set gitdir [exec git rev-parse --git-dir]} err]} {
+	show_msg {} . "Cannot find the git directory: $err"
+	exit 1
+}
+
+if {$appname == {git-citool}} {
+	set single_commit 1
+}
+
+load_repo_config
+
 ######################################################################
 ##
 ## task management
@@ -903,39 +983,7 @@ proc toggle_mode {path} {
 
 ######################################################################
 ##
-## config (fetch push pull)
-
-proc load_repo_config {} {
-	global repo_config
-	global cfg_trust_mtime
-
-	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
-			}
-		}
-		close $fd_rc
-	}
-
-	if {[catch {set cfg_trust_mtime $repo_config(gui.trustmtime)}]} {
-		set cfg_trust_mtime false
-	}
-}
-
-proc save_my_config {} {
-	global repo_config
-	global cfg_trust_mtime
-
-	if {[catch {set rc_trustMTime $repo_config(gui.trustmtime)}]} {
-		set rc_trustMTime false
-	}
-	if {$cfg_trust_mtime != $rc_trustMTime} {
-		exec git repo-config gui.trustMTime $cfg_trust_mtime
-	}
-}
+## remote management
 
 proc load_all_remotes {} {
 	global gitdir all_remotes repo_config
@@ -1398,8 +1446,6 @@ proc do_include_all {} {
 	}
 }
 
-set GIT_COMMITTER_IDENT {}
-
 proc do_signoff {} {
 	global ui_comm GIT_COMMITTER_IDENT
 
@@ -1724,6 +1770,13 @@ label .status -textvariable ui_status_value \
 	-font $mainfont
 pack .status -anchor w -side bottom -fill x
 
+# -- Load geometry
+catch {
+wm geometry . [lindex $repo_config(gui.geometry) 0 0]
+eval .vpane sash place 0 [lindex $repo_config(gui.geometry) 0 1]
+eval .vpane.files sash place 0 [lindex $repo_config(gui.geometry) 0 2]
+}
+
 # -- Key Bindings
 bind $ui_comm <$M1B-Key-Return> {do_commit;break}
 bind .   <Destroy> do_quit
@@ -1746,34 +1799,8 @@ foreach i [list $ui_index $ui_other] {
 }
 unset i M1B M1T
 
-######################################################################
-##
-## main
-
-set appname [lindex [file split $argv0] end]
-set gitdir {}
-
-if {[catch {set cdup [exec git rev-parse --show-cdup]} err]} {
-	show_msg {} . "Cannot find the git directory: $err"
-	exit 1
-}
-if {$cdup != ""} {
-	cd $cdup
-}
-unset cdup
-
-if {[catch {set gitdir [exec git rev-parse --git-dir]} err]} {
-	show_msg {} . "Cannot find the git directory: $err"
-	exit 1
-}
-
-if {$appname == {git-citool}} {
-	set single_commit 1
-}
-
 wm title . "$appname ([file normalize [file dirname $gitdir]])"
 focus -force $ui_comm
-load_repo_config
 load_all_remotes
 populate_remote_menu .mbar.fetch From fetch_from
 populate_remote_menu .mbar.push To push_to