add support for copying dhclient.conf.template from a default file if it isn't found

other/dhclient.conf.template

@@ -1,3 +0,0 @@
-# wicd will replace $_HOSTNAME in the following line with
-# the appropriate hostname for this system
-send host-name "$_HOSTNAME";

other/dhclient.conf.template.default

@@ -0,0 +1,22 @@
+# If you're reading this, you're probably reading either:
+#  /etc/wicd/dhclient.conf.template.default
+# or
+#  /etc/wicd/dhclient.conf.template
+# or
+#  a generated dhclient configuration in /var/run
+# (these files could be in different locations, as determined by your
+# packager or system administrator, but those are the default pathes)
+#
+# Here's what you need to know:
+#  The .default file is copied by wicd to dhclient.conf.template if
+#  dhclient.conf.template does not exist. If dhclient.conf.template
+#  does exist, the .default file is not used. This is to allow
+#  upgrades of the package without destroying user changes.
+#
+#  In other words, if you want to change the generated dhclient
+#  configuration, you need to change dhclient.conf.template,
+#  NOT dhclient.conf.template.default
+
+# wicd will replace $_HOSTNAME in the following line with
+# the appropriate hostname for this system
+send host-name "$_HOSTNAME";

setup.py

@@ -473,7 +473,7 @@ try:
     data = [
     (wpath.dbus, ['other/wicd.conf']),
     (wpath.log, []), 
-    (wpath.etc, ['other/dhclient.conf.template']),
+    (wpath.etc, ['other/dhclient.conf.template.default']),
     (wpath.encryption, [('encryption/templates/' + b) for b in 
                         os.listdir('encryption/templates') if not b.startswith('.')]),
     (wpath.networks, []),

wicd/wicd-daemon.py

@@ -34,6 +34,7 @@ class WirelessDaemon() -- DBus interface to managed the wireless network.
 #
 
 import os
+import shutil
 import sys
 import time
 import getopt
@@ -66,6 +67,7 @@ misc.RenameProcess("wicd")
 
 wireless_conf = wpath.etc + "wireless-settings.conf"
 wired_conf = wpath.etc + "wired-settings.conf"
+dhclient_conf = wpath.etc + "dhclient.conf.template"
 
 class WicdDaemon(dbus.service.Object):
     """ The main wicd daemon class.
@@ -936,6 +938,9 @@ class WicdDaemon(dbus.service.Object):
             open(wired_conf, "w").close()
             b_wired.CreateWiredNetworkProfile("wired-default", default=True)
 
+        if not os.path.isfile(dhclient_conf):
+            print "dhclient.conf.template not found, copying..."
+            shutil.copy(dhclient_conf + ".default", dhclient_conf)            
         # Hide the files, so the keys aren't exposed.
         print "chmoding configuration files 0600..."
         os.chmod(app_conf.get_config(), 0600)