Function DiffArchive

DiffArchive diffs the archives 'rebuild' and 'posted' based on their indexes. It reports to log any files that appear only in one or the other. For files that appear in both, DiffArchive calls check, which should log any differences found and report whether the files match. It reports whether the ar

(log *Log,
	rebuilt map[string]File1, posted map[string]File2,
	check func(*Log, File1, File2) bool)