/**
* Creates a single patch file that contains the differences between the two specified application
* directories. The patch file will be created in the <code>nvdir</code> directory with name
* <code>patchV.dat</code> where V is the old application version.
*/
public void createDiff(File nvdir, File ovdir, boolean verbose) throws IOException {
// sanity check
String nvers = nvdir.getName();
String overs = ovdir.getName();
try {
if (Long.parseLong(nvers) <= Long.parseLong(overs)) {
String err =
"New version (" + nvers + ") must be greater " + "than old version (" + overs + ").";
throw new IOException(err);
}
} catch (NumberFormatException nfe) {
throw new IOException("Non-numeric versions? [nvers=" + nvers + ", overs=" + overs + "].");
}
Application oapp = new Application(ovdir, null, SysProps.nameOfExtraFile());
oapp.init(false);
ArrayList<Resource> orsrcs = new ArrayList<Resource>();
orsrcs.addAll(oapp.getCodeResources());
orsrcs.addAll(oapp.getResources());
Application napp = new Application(nvdir, null, SysProps.nameOfExtraFile());
napp.init(false);
ArrayList<Resource> nrsrcs = new ArrayList<Resource>();
nrsrcs.addAll(napp.getCodeResources());
nrsrcs.addAll(napp.getResources());
// first create a patch for the main application
File patch = new File(nvdir, "patch" + overs + ".dat");
createPatch(patch, orsrcs, nrsrcs, verbose);
// next create patches for any auxiliary resource groups
for (Application.AuxGroup ag : napp.getAuxGroups()) {
orsrcs = new ArrayList<Resource>();
Application.AuxGroup oag = oapp.getAuxGroup(ag.name);
if (oag != null) {
orsrcs.addAll(oag.codes);
orsrcs.addAll(oag.rsrcs);
}
nrsrcs = new ArrayList<Resource>();
nrsrcs.addAll(ag.codes);
nrsrcs.addAll(ag.rsrcs);
patch = new File(nvdir, "patch-" + ag.name + overs + ".dat");
createPatch(patch, orsrcs, nrsrcs, verbose);
}
}
