/**
* Create a revision as a child of another revision.
*
* @param parent Parent revision, or null if this is the root revision.
*/
public Revision(GVCLib gvclib, Revision parent, Map<String, Set<File>> fileSet, String comment)
throws GVCException {
this.parent = parent;
this.date = new Date();
this.comment = comment;
if (parent == null) {
// This is the initial revision.
this.filesAdded = fileSet;
} else {
// Diff the given file set with parent's file set to get added and removed.
List<Map<String, Set<File>>> diffList = filesetGetDiff(parent.getFileset(gvclib), fileSet);
this.filesAdded = diffList.get(0);
this.filesRemoved = diffList.get(1);
}
if (this.filesAdded == null && this.filesRemoved == null) {
throw new GVCException("Will not create a revision with no changes.");
}
this.serialize();
// Generate hash.
MD5 md5 = new MD5();
try {
md5.Update(this.serialized, null);
} catch (UnsupportedEncodingException e) {
throw new GVCException(e);
}
this.hash = md5.asHex();
}
private String computeMD5(File packageFile) throws IOException {
return MD5.asHex(MD5.getHash(packageFile));
}