Most of my build-file use a standard pattern of tasks when compiling Java
code:
- create the output directory
- run <depend>
- compile using <javac>
- copy resource-files into the output directory
I've written a "meta-target" or "recipe" to factor-out this pattern.
It looks like this:
<target name="meta_compile">
<mkdir dir="${destdir}"/>
<depend srcdir="${srcdir}"
destdir="${destdir}"
cache="${destdir}/../depcache">
<classpath refid="${classpathref}" />
</depend>
<javac srcdir="${srcdir}"
destdir="${destdir}"
debug="${javac.debug}"
deprecation="${javac.deprecation}"
optimize="${javac.optimize}">
<classpath refid="${classpathref}" />
</javac>
<copy todir="${destdir}"
overwrite="yes" filtering="yes">
<fileset dir="${srcdir}" <!-- FAILS HERE -->
excludes="**/*.java" />
</copy>
</target>
I then use it as:
<antcall target="meta_compile">
<param name="srcdir" value="main/java" />
<param name="destdir" value="build/main/classes" />
<param name="classpathref" value="compile.classpath" />
</antcall>
Mostly, this works pretty well, but it falls over when I have multiple
source-directories.
<antcall target="meta_compile">
<param name="srcdir" value="ejb/java:build/ejb/java" />
<param name="destdir" value="build/ejb/classes" />
<param name="classpathref" value="j2ee.classpath" />
</antcall>
In this case, I've defined $srcdir as a colon-separated PATH rather than a
single directory. The <depend> and <javac> targets accept the path quite
happily, but the <fileset> bombs out. Any suggestions?
Lastly, is there a better way of factoring-out "recipes" like this?
--
cheers, Mike
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