gdm: shorten post script

gdm.spec

@@ -97,7 +97,7 @@ install -p -m644 -D %{SOURCE2} %{buildroot}%{_localstatedir}/lib/gdm/.config/pul
 exit 0
 
 %post
-custom=/etc/gdm/custom.conf
+newconffile=/etc/gdm/custom.conf
 
 if [ $1 -ge 2 ] ; then
     if [ -f /usr/share/gdm/config/gdm.conf-custom ]; then
@@ -106,35 +106,10 @@ if [ $1 -ge 2 ] ; then
         oldconffile=/etc/X11/gdm/gdm.conf
     fi
 
-    [ -n "$oldconffile" ] && sed \
-    -e 's@^command=/usr/X11R6/bin/X@#command=/usr/bin/Xorg@' \
-    -e 's@^Xnest=/usr/X11R6/bin/Xnest@#Xnest=/usr/X11R6/bin/Xnest@' \
-    -e 's@^BaseXsession=/etc/X11/xdm/Xsession@#BaseXsession=/etc/X11/xinit/Xsession@' \
-    -e 's@^BaseXsession=/etc/X11/gdm/Xsession@#&@' \
-    -e 's@^BaseXsession=/etc/gdm/Xsession@#&@' \
-    -e 's@^Greeter=/usr/bin/gdmgreeter@#Greeter=/usr/libexec/gdmgreeter@' \
-    -e 's@^RemoteGreeter=/usr/bin/gdmlogin@#RemoteGreeter=/usr/libexec/gdmlogin@' \
-    -e 's@^GraphicalTheme=Bluecurve@#&@' \
-    -e 's@^BackgroundColor=#20305a@#&@' \
-    -e 's@^DefaultPath=/usr/local/bin:/usr/bin:/bin:/usr/X11R6/bin@#&@' \
-    -e 's@^RootPath=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/usr/X11R6/bin@#&@' \
-    -e 's@^HostImageDir=/usr/share/hosts/@#HostImageDir=/usr/share/pixmaps/faces/@' \
-    -e 's@^LogDir=/var/log/gdm@#&@' \
-    -e 's@^PostLoginScriptDir=/etc/X11/gdm/PostLogin@#&@' \
-    -e 's@^PreLoginScriptDir=/etc/X11/gdm/PreLogin@#&@' \
-    -e 's@^PreSessionScriptDir=/etc/X11/gdm/PreSession@#&@' \
-    -e 's@^PostSessionScriptDir=/etc/X11/gdm/PostSession@#&@' \
-    -e 's@^DisplayInitDir=/var/run/gdm.pid@#&@' \
-    -e 's@^RebootCommand=/sbin/reboot;/sbin/shutdown -r now;/usr/sbin/shutdown -r now;/usr/bin/reboot@#&@' \
-    -e 's@^HaltCommand=/sbin/poweroff;/sbin/shutdown -h now;/usr/sbin/shutdown -h now;/usr/bin/poweroff@#&@' \
-    -e 's@^ServAuthDir=/var/gdm@#&@' \
-    -e 's@^Greeter=/usr/bin/gdmlogin@Greeter=/usr/libexec/gdmlogin@' \
-    -e 's@^RemoteGreeter=/usr/bin/gdmgreeter@RemoteGreeter=/usr/libexec/gdmgreeter@' \
-    $oldconffile > $custom
-fi
-
-if [ $1 -ge 2 -a -f $custom ] && grep -q /etc/X11/gdm $custom ; then
-   sed -i -e 's@/etc/X11/gdm@/etc/gdm@g' $custom
+    if [ -n "$oldconffile" ]; then
+        sed -e 's@^Greeter=/usr/bin/gdmlogin@Greeter=/usr/libexec/gdmlogin@' $oldconffile > $newconffile
+        sed -e 's@^RemoteGreeter=/usr/bin/gdmgreeter@RemoteGreeter=/usr/libexec/gdmgreeter@' $oldconffile >> $newconffile
+    fi
 fi
 
 %systemd_post gdm.service