I poked around and couldn't find any good examples of trying to make a
task to do simple XSLT on some source files. (Specifically, I was
trying to get an HTML view of checkstyle's report because the XML makes
my head hurt...)
Maybe there is something already built into gradle that I missed but
anyway, creating my own XSLT task wasn't 'too' bad.
I ended up cobbling from some of the gradle build files, specifically
the docbook to HTML task and here's what I came up with:
import javax.xml.transform.TransformerFactory
import javax.xml.transform.stream.StreamResult
import javax.xml.transform.stream.StreamSource
class Xslt extends SourceTask {
@OutputFile @Optional
File destFile
@OutputDirectory @Optional
File destDir
@InputFile
File stylesheetFile
@TaskAction
def transform() {
if (!((destFile != null) ^ (destDir != null))) {
throw new InvalidUserDataException("Must specify output file or
dir.")
}
def factory = TransformerFactory.newInstance()
def transformer = factory.newTransformer(
new StreamSource(stylesheetFile))
source.visit { FileVisitDetails fvd ->
if (fvd.isDirectory()) {
return
}
File d = destFile;
if( d == null )
d = new File( destDir, fvd.file.name )
transformer.transform(new StreamSource(fvd.file),
new StreamResult(d))
}
}
}
It seems to work for my limited use-cases but I'm totally open to
criticism. Still a little new to groovy so some of the semantics might
be off.
Maybe someone else finds it useful? Seems like this (or something
similar) would be a good task to have built in.
-Paul
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