gistfile1.txt

drawing_node_raw = "
<w:drawing>
<wp:anchor behindDoc=\"0\" distT=\"0\" distB=\"0\" distL=\"0\" distR=\"0\" simplePos=\"0\" locked=\"0\" layoutInCell=\"1\" allowOverlap=\"1\" relativeHeight=\"2\">
<wp:simplePos x=\"0\" y=\"0\"/>
<wp:positionH relativeFrom=\"column\">
<wp:align>center</wp:align>
</wp:positionH>
<wp:positionV relativeFrom=\"paragraph\">
<wp:posOffset>635</wp:posOffset>
</wp:positionV>
<wp:extent cx=\"985520\" cy=\"492760\"/>
<wp:effectExtent l=\"0\" t=\"0\" r=\"0\" b=\"0\"/>
<wp:wrapSquare wrapText=\"largest\"/>
<wp:docPr id=\"1\" name=\"Image2\" descr=\"\"/>
<wp:cNvGraphicFramePr>
<a:graphicFrameLocks xmlns:a=\"http://schemas.openxmlformats.org/drawingml/2006/main\" noChangeAspect=\"1\"/>
</wp:cNvGraphicFramePr>
<a:graphic xmlns:a=\"http://schemas.openxmlformats.org/drawingml/2006/main\">
<a:graphicData uri=\"http://schemas.openxmlformats.org/drawingml/2006/picture\">
<pic:pic xmlns:pic=\"http://schemas.openxmlformats.org/drawingml/2006/picture\">
<pic:nvPicPr>
<pic:cNvPr id=\"1\" name=\"Image2\" descr=\"\"/>
<pic:cNvPicPr>
<a:picLocks noChangeAspect=\"1\" noChangeArrowheads=\"1\"/>
</pic:cNvPicPr>
</pic:nvPicPr>
<pic:blipFill>
<a:blip r:embed=\"rId2\"/>
<a:stretch>
<a:fillRect/>
</a:stretch>
</pic:blipFill>
<pic:spPr bwMode=\"auto\">
<a:xfrm>
<a:off x=\"0\" y=\"0\"/>
<a:ext cx=\"985520\" cy=\"492760\"/>
</a:xfrm>
<a:prstGeom prst=\"rect\">
<a:avLst/>
</a:prstGeom>
</pic:spPr>
</pic:pic>
</a:graphicData>
</a:graphic>
</wp:anchor>
</w:drawing>"

def find_root_most_children xml, basket
    # recursive function to find rootmost xml nodes containing mustache template vars
    # note, this is only for image files, the others should already have been replaced
    # basket is the array you want to collect the nodes into
    xml.children.each do |child|
        if child.content.include? "{{" and child.content.include? "}}"
            if child.children.empty?
                # we are done
                basket << child
            else
                # otherwise, recurse
                find_root_most_children child, basket
            end
        end
    end
    basket
end

node = Nokogiri::XML::DocumentFragment.parse drawing_node_raw

xml = Nokogiri::XML.parse File.open("/tmp/document.xml").read

basket = []

find_root_most_children xml,basket
basket[1].parent.replace node

File.open("/tmp/document2.xml","w+").write(xml.to_xml.to_s)
`cp /tmp/document2.xml ~/Documents`