Command line tools¶
The python-pure-cdb package contains Python implementations of the cdbmake and cdbdump programs.
python-pure-cdbmake should be able to create databases that are compatible with other implementations, including the standard one. It can also create “64-bit” databases that don’t have the usual 4 GiB restriction.
Similarly, python-pure-cdbdump should be able to read databases produced by other implementations, including the standard one. It can also read the “64-bit” databases produced by this package.
This utility creates a database file from text records using the following format:
klen is the length of key (in bytes)
dlen is the length of data (in bytes)
key can be any string of characters
data can be any string of characters
Each record must end with a newline character. For example:
python-pure-cdbmake reads these records from stdin. When invoking the utility, you have to specify two file paths:
The first (cdb) is the ultimate location of the database.
The second (cdb.tm) is a temporary location to use when creating the database. It will be moved to the ultimate location after completion.
$ <records_file.txt python-pure-cdbmake ~/records_db.cdb /tmp/records_db.tmp
Use the -64 switch to enable “64-bit” mode, which can write larger database files at the expense of compatibility with other cdb packages.
This utility creates a text export of the contents of a database file.
The output format is the same as the one used by python-pure-cdbmake for input - see above.
python-pure-cdbdump reads the database from stdin and prints to stdout.
$ <~records_db.cdb python-pure-cdbdump +1,2:a->bb +2,1:aa->b
Use the -64 switch to read databases created by this package using “64-bit” mode.