ExtJs Adding additional files to build

How to use 'app.json' to add additional files to the production build when I use the following command

sencha app build

For example, I have some static HTML pages updated regularly located in the root directory, so I want those files to be copied to the production directory

You can use the build.xml file located in the project's root directroy. Add the following to the main <project> block:

<target name="-after-build">
    <copy todir="${build.dir}/myfolder">
        <fileset dir="${app.dir}/myfolder" />
    </copy>
    <copy todir="${build.dir}">
        <fileset dir="${app.dir}">
            <include name="favicon.ico"/>
        </fileset>
    </copy>
</target>

The first example copies an entire folder, the second copies a file from the project root folder to the build folder.