+######################################################################
+##
+## 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
+