From 8fd902f197bb9a2a22fa71ad1b28291c741e42c7 Mon Sep 17 00:00:00 2001
From: Lukas Rusak <lorusak@gmail.com>
Date: Tue, 14 Mar 2017 10:38:42 -0700
Subject: [PATCH] kodi: add xml_merge.py script to process xml files during
 installation

---
 packages/mediacenter/kodi/package.mk          | 52 +++++++------------
 .../mediacenter/kodi/scripts/xml_merge.py     | 51 ++++++++++++++++++
 2 files changed, 71 insertions(+), 32 deletions(-)
 create mode 100755 packages/mediacenter/kodi/scripts/xml_merge.py

diff --git a/packages/mediacenter/kodi/package.mk b/packages/mediacenter/kodi/package.mk
index 9a148f5532..27d05d2f37 100644
--- a/packages/mediacenter/kodi/package.mk
+++ b/packages/mediacenter/kodi/package.mk
@@ -292,39 +292,27 @@ post_makeinstall_target() {
     $SED "s|@ADDON_URL@|http://lrusak.libreelec.tv/addons/$ADDON_PATH|g" $INSTALL/usr/share/kodi/addons/repository.retroplayer.libreelec.tv/addon.xml
 
   mkdir -p $INSTALL/usr/share/kodi/config
-    cp $PKG_DIR/config/guisettings.xml $INSTALL/usr/share/kodi/config
-    cp $PKG_DIR/config/sources.xml $INSTALL/usr/share/kodi/config
-
-# install project specific configs
-    if [ -n "$DEVICE" -a -f $PROJECT_DIR/$PROJECT/devices/$DEVICE/kodi/guisettings.xml ]; then
-      cp -R $PROJECT_DIR/$PROJECT/devices/$DEVICE/kodi/guisettings.xml $INSTALL/usr/share/kodi/config
-    elif [ -f $PROJECT_DIR/$PROJECT/kodi/guisettings.xml ]; then
-      cp -R $PROJECT_DIR/$PROJECT/kodi/guisettings.xml $INSTALL/usr/share/kodi/config
-    fi
-
-    if [ -n "$DEVICE" -a -f $PROJECT_DIR/$PROJECT/devices/$DEVICE/kodi/sources.xml ]; then
-      cp -R $PROJECT_DIR/$PROJECT/devices/$DEVICE/kodi/sources.xml $INSTALL/usr/share/kodi/config
-    elif [ -f $PROJECT_DIR/$PROJECT/kodi/sources.xml ]; then
-      cp -R $PROJECT_DIR/$PROJECT/kodi/sources.xml $INSTALL/usr/share/kodi/config
-    fi
-
-  mkdir -p $INSTALL/usr/share/kodi/system/
-    if [ -n "$DEVICE" -a -f $PROJECT_DIR/$PROJECT/devices/$DEVICE/kodi/advancedsettings.xml ]; then
-      cp $PROJECT_DIR/$PROJECT/devices/$DEVICE/kodi/advancedsettings.xml $INSTALL/usr/share/kodi/system/
-    elif [ -f $PROJECT_DIR/$PROJECT/kodi/advancedsettings.xml ]; then
-      cp $PROJECT_DIR/$PROJECT/kodi/advancedsettings.xml $INSTALL/usr/share/kodi/system/
-    else
-      cp $PKG_DIR/config/advancedsettings.xml $INSTALL/usr/share/kodi/system/
-    fi
-
   mkdir -p $INSTALL/usr/share/kodi/system/settings
-    if [ -n "$DEVICE" -a -f $PROJECT_DIR/$PROJECT/devices/$DEVICE/kodi/appliance.xml ]; then
-      cp $PROJECT_DIR/$PROJECT/devices/$DEVICE/kodi/appliance.xml $INSTALL/usr/share/kodi/system/settings
-    elif [ -f $PROJECT_DIR/$PROJECT/kodi/appliance.xml ]; then
-      cp $PROJECT_DIR/$PROJECT/kodi/appliance.xml $INSTALL/usr/share/kodi/system/settings
-    else
-      cp $PKG_DIR/config/appliance.xml $INSTALL/usr/share/kodi/system/settings
-    fi
+
+  $PKG_DIR/scripts/xml_merge.py $PKG_DIR/config/guisettings.xml \
+                                $PROJECT_DIR/$PROJECT/kodi/guisettings.xml
+                                $PROJECT_DIR/$PROJECT/devices/$DEVICE/kodi/guisettings.xml \
+                                > $INSTALL/usr/share/kodi/config/guisettings.xml
+
+  $PKG_DIR/scripts/xml_merge.py $PKG_DIR/config/sources.xml \
+                                $PROJECT_DIR/$PROJECT/kodi/sources.xml
+                                $PROJECT_DIR/$PROJECT/devices/$DEVICE/kodi/sources.xml \
+                                > $INSTALL/usr/share/kodi/config/sources.xml
+
+  $PKG_DIR/scripts/xml_merge.py $PKG_DIR/config/advancedsettings.xml \
+                                $PROJECT_DIR/$PROJECT/kodi/advancedsettings.xml
+                                $PROJECT_DIR/$PROJECT/devices/$DEVICE/kodi/advancedsettings.xml \
+                                > $INSTALL/usr/share/kodi/system/advancedsettings.xml
+
+  $PKG_DIR/scripts/xml_merge.py $PKG_DIR/config/appliance.xml \
+                                $PROJECT_DIR/$PROJECT/kodi/appliance.xml
+                                $PROJECT_DIR/$PROJECT/devices/$DEVICE/kodi/appliance.xml \
+                                > $INSTALL/usr/share/kodi/system/settings/appliance.xml
 
   # update addon manifest
   ADDON_MANIFEST=$INSTALL/usr/share/kodi/system/addon-manifest.xml
diff --git a/packages/mediacenter/kodi/scripts/xml_merge.py b/packages/mediacenter/kodi/scripts/xml_merge.py
new file mode 100755
index 0000000000..f5ccaaca82
--- /dev/null
+++ b/packages/mediacenter/kodi/scripts/xml_merge.py
@@ -0,0 +1,51 @@
+#!/usr/bin/env python2
+
+# taken from http://stackoverflow.com/a/14879370 with minor modifications
+
+import os
+import sys
+import xml.dom.minidom
+from xml.etree import ElementTree as et
+
+class XMLCombiner(object):
+    def __init__(self, filenames):
+        assert len(filenames) > 0, 'No filenames!'
+        self.roots = [et.parse(f).getroot() for f in filenames]
+
+    def prettyPrint(self, etree_xml):
+        minidom = xml.dom.minidom.parseString(et.tostring(etree_xml))
+        return "\n".join([line for line in minidom.toprettyxml(indent="  ", encoding="utf-8").split('\n') if line.strip() != ""])
+
+    def combine(self):
+        for r in self.roots[1:]:
+            self.combine_element(self.roots[0], r)
+        return self.prettyPrint(self.roots[0])
+
+    def combine_element(self, one, other):
+        mapping = {el.tag: el for el in one}
+        for el in other:
+            if len(el) == 0:
+                try:
+                    mapping[el.tag].text = el.text
+                except KeyError:
+                    mapping[el.tag] = el
+                    one.append(el)
+            else:
+                try:
+                    self.combine_element(mapping[el.tag], el)
+                except KeyError:
+                    mapping[el.tag] = el
+                    one.append(el)
+
+if __name__ == '__main__':
+    try:
+        r = XMLCombiner([sys.argv[1], sys.argv[2], sys.argv[3]]).combine()
+    except IOError:
+        try:
+            r = XMLCombiner([sys.argv[1], sys.argv[2]]).combine()
+        except IOError:
+            try:
+                r = XMLCombiner([sys.argv[1], sys.argv[3]]).combine()
+            except IOError:
+                r = XMLCombiner([sys.argv[1]]).combine()
+    print(r)