Add version detection

[jontje]

Fix #46

As a side note, then this also means that I could add support for RW versions less than 6.07 again.

Edit: I forgot to mention that this is only a rough version estimation, based on if some fields exists or not.

[gavanderhoorn]

As a general comment: it's a bit strange there are no fields in EGM that are populated with this information.

Would be great as an enhancement to the base EGM .proto.

[jontje]

As a general comment: it's a bit strange there are no fields in EGM that are populated with this information.

Agreed.

Would be great as an enhancement to the base EGM .proto.

I have already mentioned this to the EGM developers.

[gavanderhoorn]

Some minor comments.

[gavanderhoorn]

Nice.

Thanks for iterating 👍

[loongsunchan]

Hi, it's so good to see you raised this issue, and then related MR was merged. So is it possible to support RW versions less than 6.07 within the master branch? I'm not sure because the README.md is still claiming that RobotWare versions less than 6.07.01 are now incompatible with abb_libegm (due to changes in the EGM communication protocol).
@jontje @gavanderhoorn

[gavanderhoorn]

@loongsunchan: #82 is still open. While it would be possible to at least detect someone is attempting to use an older version, no support for version < 6.07 is currently available.

[loongsunchan]

@gavanderhoorn
I have one with version < 6.07 and wondering is it possible to checkout to a previous branch so that I get an available driver?

[jontje]

I have one with version < 6.07 and wondering is it possible to checkout to a previous branch so that I get an available driver?

@loongsunchan, I recommend that you upgrade to a newer RobotWare version (it's free) but if that isn't an option, then you can roll back to an earlier version. Commit 880245b should work for you, however it will be missing some bug fixes and improvements.