[mojo-user] [sablecc] stale grammar detection does not work for grammers in packages

[Jens Zastrow]

My grammer resides in src/main/sablecc/a/b/c/X.grammar and will be
copied to the target/ directory for stale detection.
This will not work correctly because the "StaleSourceScanner" will try
to match
src/main/sablecc/a/b/c/X.grammar with target/a/b/c/X.grammar which does
not exist, on the next call.

FIX: create the correct package-structure in /target


[SableCCMojo]

                // must create the same package-structure as the grammar
            FileUtils.copyFileToDirectory(grammar, new
File(timestampDirectory));

   private Set computeStaleGrammars() throws MojoExecutionException
   {
      SuffixMapping mapping = new SuffixMapping( ".grammar", ".grammar"
);

      SourceInclusionScanner scanner = new StaleSourceScanner(
staleMillis );

      scanner.addSourceMapping( mapping );

      File outDir = new File( timestampDirectory );

      Set staleSources = new HashSet();

      File sourceDir = new File( sourceDirectory );

      try
      {
         staleSources.addAll( scanner.getIncludedSources( sourceDir,
outDir ) );
      }
      catch ( InclusionScanException e )
      {
         throw new MojoExecutionException( "Error scanning source root:
\'" + sourceDir + "\' for stale grammars to reprocess.", e );
      }

      return staleSources;
   }