Added multiple file export at once

[jmwright]

This PR adds the ability to specify multiple output files at once in the outfile parameter by separating them with a ; character. The number of codecs specified via the codec parameter should match the number of output files. This prevents users from having to invoke cq-cli from scratch for each different export format they want of a single model.

@justbuchanan If you have the time and interest, please review. If you do not, I'll merge in a few days.

[jmwright]

Looks like the tests are failing with the Numpy 2.x issue that is fixed in CadQuery master. I will need to figure out how to fix that here, but this code should still work fine for testing.

[jmwright]

The Numpy version issue is now fixed.

[julianstirling]

@jmwright The speed improvement is significant. I can build 3 files in 8s instead of 20s.

The one issue I am having is that it throws an error if I don't specify the codec (for one file or for multiple files)

[jmwright]

@julianstirling

The one issue I am having is that it throws an error if I don't specify the codec (for one file or for multiple files)

Correct, you have to specify a matching codec for each file. The reason for this is that the codec cannot always be inferred correctly from the file extension. Is this a blocker for the use of cq-cli with ExSource?

[julianstirling]

Not a blocker, just was useful that it used to guess it correctly.

I suppose it isn't clear to me from the -h script which tags are optional and which are mandatory (if not using -h)

[jmwright]

@julianstirling I think that codec has always been required unless you are just validating the script. Are you able to get the main branch to run a single outfile without specifying a codec?

[julianstirling]

@julianstirling I think that codec has always been required unless you are just validating the script. Are you able to get the main branch to run a single outfile without specifying a codec?

Yes, I never specified a codec before. It wasn't immediately clear what the codecs were called (though in hindsight they were pretty obviously named)

[jmwright]

@julianstirling Can you try with the latest commit to this PR branch? You should not be required to specify the codecs anymore. If you use a filename extension that does not match the codec name like stp for STEP files instead of step, an error will be thrown.

[julianstirling]

I just did a test and it worked. Thanks!

[julianstirling]

I had a quick skim through the code as we discussed. I don't have anything helpful to add/say, except that the logic makes sense to me.

[jmwright]

@julianstirling Great, thanks for the review.