As mailing of the commit messages currently doesn't work:
I've committed two things today: (1) I've modified <execon> to give the
user more control over the placement of the source file name and (2)
I've committed a new task named transform.
Both features have not been documented yet (partly because <transform>
relies on <mapper> and this one hasn't been documented either 8-).
Ad (1):
<execon> now supports a nested <srcfile/> element which doesn't have
any attributes. This one does only work properly if you use nested
<arg> elements instead of the args attribute.
<execon executable="foo">
<arg value="bar" />
<srcfile />
<arg value="baz" />
<fileset dir="pling" />
</execon>
will execute the command "foo bar XYZ baz" for each file XYZ in the
directory pling. If no <srcfile/> has been specified, the filenames
are appended to the end - this is the old behavior of <execon>.
Ad (2):
<transform> is similar to <execon> in a way. It invokes a given
command on a couple of files. This task should be used for executables
that produce yet another file (_transform_-ing the source file) as it
will only invoke the command for source files that are newer than
their corresponding target files.
For example
<transform executable="gcc" dest="${build}/obj">
<arg value="-c" />
<arg value="-O2" />
<arg value="-o" />
<targetfile />
<srcfile />
<fileset dir="src/C" />
<mapper type="glob" from="*.c" to="*.o" />
</transform>
will compile all C files from the directory src/C to object files in
${build}/obj that are newer than the files compiled on previous runs.
Stefan
