Re: [docbook-apps] Docbook to epub - Extra field length for first filename must be 0, but was ..

Hey Lars,

I think there is an error in the zip part of your Ant buildfile. Try to change "temp.mimetype" to "mimetype.zip".

<zip destfile="${output.dir}/mimetype.zip" ...

<zipfileset src="" ...

Best regards

Nils

2014-02-17 16:32 GMT+01:00 Lars Vogel <>:

Hi,

I'm generating epub from Docbook via Apache Ant and I'm getting the following error during the validation with Epubcheck.

     [java] Epubcheck Version 3.0ERROR: /home/vogella/workspace/docu/de.vogella.publishing/../output/epub/book.epub: Extra field length for first filename must be 0, but was 20

Any suggestion what might be causing the error.

I generate the epub via the following snippet (see below).

Thanks for any help, Lars

	<target name="build-epub_eclipsercp" description="Generates EPUB files from DocBook XML">

		<xslt style="${epub.stylesheet}" extension=".html" basedir="${output.dir}/tmp2" destdir="${output.dir}/tmp">

			<include name="*80_Book_Eclipse_RCP*/*book.xml" />

			<param name="epub.stylesheet" _expression_="style.css" />

			<param name="html.stylesheet" _expression_="${stylesheet}" />

			<param name="section.autolabel" _expression_="1" />

			<param name="chapter.autolabel" _expression_="1" />

			<param name="show.comments" _expression_="0" />

			<param name="section.autolabel.max.depth" _expression_="1" />

			<param name="toc.section.depth" _expression_="1" />

			<param name="section.label.includes.component.label" _expression_="1" />

			<param name="make.valid.html" _expression_="1" />

			<param name="html.cleanup" _expression_="1" />

			<param name="chunker.output.encoding" _expression_="UTF-8" />

			<param name="ignore.image.scaling" _expression_="1" />

			<outputproperty name="indent" value="yes" />

			<classpath refid="saxon.class.path" />

		</xslt>

		<copy todir="${output.dir}/tmp/OEBPS">

			<fileset dir="OEBPS">

			</fileset>

		</copy>

		<copy todir="${output.dir}/tmp/META-INF">

			<fileset dir="META-INF">

			</fileset>

		</copy>

		<!-- Don't know how to avoid genereation of "${destfilename}.html" by Saxon -->

		<delete file="${output.dir}/tmp/book.html" />

		<echo message="Generating book.epub" level="info" />

		<!-- We create temporary zips so that minetype is the first one in the final zip  -->

		<zip destfile="${output.dir}/temp.mimetype" basedir="${output.dir}/tmp" compress="false" includes="mimetype" />

		<zip destfile="${output.dir}/temp.zip" basedir="${output.dir}/tmp/" level="9" compress="true" excludes="mimetype" includes="OEBPS/** META-INF/**" />

		<zip destfile="${output.dir}/book.epub" update="true" keepcompression="true" encoding="UTF-8" excludes="*.html">

			<zipfileset src="" />

			<zipfileset src="" />

		</zip>

		<!-- Have to delete these directories would be nicer to place then in tmp output dir 

		<delete dir="./OEBPS" />

		<delete dir="./META-INF" />

		-->

		<!-- Make sure the epubcheck lib has a subfolder lib with saxon.jar and jing.jar in it

			-->

		<epub.check epub="book" />

	</target>