[Bobs-devel] database status

[Rene <re...@gr...>]

I finally got the database to behave properly.

The size of the database is much smaller than I wrote last time.
I've got an 11 MB text file which is converted into an 18 MB database.

I've arranged the databases this way:

fileindex.db
keys are in this format: <"incrementing-number" dash "data-type">
Data-type are things like path, name and size.

example:
	0000000-00 => pathname
	0000001-01 => filename
	0000002-02 => date
	0000003-03 => size of file
	0000004-00 => pathname
	0000005-01 => filename
	0000006-02 => date
	0000007-03 => size of file

More data-types can be added. The only limitation at the moment is that
all files must have all data-types. So if I add a new data-type to one
file I need to add that to the rest as well. I can however be empty
values on the files that don't need it, but they key must be there.


dirindex.db has entries in this format:
The key is the full path
The value is the index range in fileindex.db
example:
	path/to/somewhere => 300-312
	some/other/path/1 => 313-544

The databases are generated when the backup is run.
I also managed to generate the dirtree at the same time.
That is saved as a serialized object and loaded when the users wishes to
browse the files. That saves about 6 seconds of loading time on some of
my backups.


You said that you have some experience with these simple databases.
Please let me know if you think there a better ways to do this.
Then I can correct it before I continue.

-Rene