xmlutil: Take unindent_device_xml from details.py

We will use this in virt-xml soon

Signed-off-by: Cole Robinson <crobinso@redhat.com>

virtManager/details/details.py

@@ -4,8 +4,6 @@
 # This work is licensed under the GNU GPLv2 or later.
 # See the COPYING file in the top-level directory.
 
-import re
-
 from gi.repository import Gtk
 
 import libvirt
@@ -320,25 +318,6 @@ def _get_performance_icon_name():
     return icon
 
 
-def _unindent_device_xml(xml):
-    lines = xml.splitlines()
-    if not lines:
-        return xml  # pragma: no cover
-
-    ret = ""
-    unindent = 0
-    for c in lines[0]:
-        if c != " ":
-            break
-        unindent += 1
-
-    for line in lines:
-        if re.match(r"^%s *<.*$" % (unindent * " "), line):
-            line = line[unindent:]
-        ret += line + "\n"
-    return ret
-
-
 class vmmDetails(vmmGObjectUI):
     def __init__(self, vm, builder, topwin, is_customize_dialog):
         vmmGObjectUI.__init__(self, "details.ui",
@@ -1693,7 +1672,8 @@ class vmmDetails(vmmGObjectUI):
         try:
             dev = row[HW_LIST_COL_DEVICE]
             if dev:
-                self._xmleditor.set_xml(_unindent_device_xml(dev.get_xml()))
+                self._xmleditor.set_xml(
+                        virtinst.xmlutil.unindent_device_xml(dev.get_xml()))
             else:
                 self._xmleditor.set_xml_from_libvirtobject(self.vm)
 

virtinst/xmlutil.py

@@ -76,3 +76,23 @@ def diff(origstr, newstr, fromfile="Original", tofile="New"):
             origstr.splitlines(1), newstr.splitlines(1),
             fromfile=fromfile, tofile=tofile)
     return "".join(dlist)
+
+
+def unindent_device_xml(xml):
+    import re
+    lines = xml.splitlines()
+    if not lines:
+        return xml  # pragma: no cover
+
+    ret = ""
+    unindent = 0
+    for c in lines[0]:
+        if c != " ":
+            break
+        unindent += 1
+
+    for line in lines:
+        if re.match(r"^%s *<.*$" % (unindent * " "), line):
+            line = line[unindent:]
+        ret += line + "\n"
+    return ret