XmlDiff

Simple Xml diff tool based on Linq to Xml. The main idea behind was to create a tool for a quick and flexible structured *.config files comparision.

Usage

Basic usage is that you have two XElement instances sourceXml and resultXml. Then you can pass it to XmlComparer and inspect the result.

var comparer = new XmlComparer();
var diff = comparer.Compare(sourceXml, resultXml);
var isChanged = diff.IsChanged;

Feel free to use a predefined or custom Visitors

var visitor = new HtmlOutputVisitor();
visitor.Visit(diff);
return visitor.Result;

Built-in Visitors

ToStringVisitor

Default output for diff.ToString()

= Element "configuration"
...= Element "applicationSettings"
......= Element "BusinessValues"
.........= Element "setting" "name"="IsProduction" "serializeAs"="String"
............= Element "value"
...............- Value: "False"
...............+ Value: "True"
...= Element "appSettings" "file"="Personal.config"
......= Element "add" "key"="webpages:Version" "value"="1.0.0.0"
.........+ Attribute: "value" with value: "1.0.0.0"
...= Element "system.web"
......- Element "authentication" "mode"="Forms"

HtmlVisitor

Prettified version

XdtVisitor

Generates XML Document Transformation file

<configuration>
    <appSettings>
        <add key="bar" xdt:Transform="SetAttributes(key)" />
        <add key="hello" value="new" xdt:Locator="Match(key)" xdt:Transform="SetAttributes(value)" />
    </appSettings>
</configuration>

Custom Visitors

In order to create your own visitor you need to implement IDiffVisitor or IDiffParamsVisitor interface

License

This project is licensed under the MIT License - see the LICENSE.md file for details

Acknowledgments

Thanks to Keith Hall for contributing