Dnstemple

Added

- Support variable expansion in addresses
- Support recursive address definitions (up to 5 levels deep for now)

Fixed

- Reported wrong version

Changed

Added

- Automated integration tests
- Statement summary and dxplanation of variables in `Syntax` documentation

Fixed

Changed

- Upgraded Python build/test system
- Switched to `argparse`

Added

Fixed

- Variables were superglobal (global over all zones), instead of local

Changed

Added

Fixed

- `$DEFAULT` wrongly overwrote variables

Changed

Added

- Automatically maintain a catalog file
- `./dnstemple.py` to simplify testing the current version
- Will output the domains which were changed, to simplify zone reloads
- Option to skip outputting empty and/or comment lines (_starting_ with `;`)
- Allow a constant number as the serial number in `config.serial`
- If catalog is changed, output its name first, so that it the name server will
learn about potential new domains first

Fixed

Changed

- Default for serial number generation is now `unixtime`. Is much faster than
`online`. Recommended for use with [Knot DNS](https://knot-dns.cz) option
`zonefile-load: difference-no-serial`.
- No more variable expansion in comment lines (referring to a changing variable
such as `_serial` in the comments no longer results in the file considered to
have changed)
- Comment lines no longer reset the expectation for a label (to avoid wrong
assumptions, after e.g. `$INCLUDE`, a warning is issued, if the first resource
record does not have an explicit label)
- Warnings go to stderr so that only changed domain names go to stdout

Added

- Support for `$DEFAULT` directive for setting a default value for a variable.
(The use of more shell-like substitutions like `{variable:-value}` was
discarded, as it would have required a variable substitution parser.)

Fixed

- Install `dnspython` as well when using `pip`.

Changed