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mavlink / qgc-dev-guide

QGroundControl Developers Guide
https://dev.qgroundcontrol.com/en/
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Add CLI build instructions #116

Closed MaEtUgR closed 3 years ago

MaEtUgR commented 3 years ago

Since I started building QGC I wanted to document how to build and run it from the command line. FYI @hamishwillee I don't have write access so it's on my fork.

hamishwillee commented 3 years ago

@MaEtUgR Looks great. I'm going to merge, but I have open question in here related to "Use parallel clone commands" - i.e. how much value do they really add vs can they break anything?

MaEtUgR commented 3 years ago

@hamishwillee Cool, thanks. We should also get https://github.com/mavlink/qgroundcontrol/pull/9386 going for the script 👍

how much value do they really add vs can they break anything?

Parallel cloning has the most value if you have a whole submodule tree and a fast internet connection. E.g. on the PX4 repo, the cloning time can be reduced to a fraction. Instead of going through submodules one by one, it starts multiple threads that clone them in parallel which is much more efficient because cloning is a sequence of downloading git objects and checking them out locally. Also, you usually get faster download speeds that way. A potential disadvantage is if your internet goes down during cloning it could theoretically happen that you end up with no finished submodule instead of the first few.

hamishwillee commented 3 years ago

But it still works fine if you don't have 8 cores?

MaEtUgR commented 3 years ago

But it still works fine if you don't have 8 cores?

Yes, sure. It uses multiple threads and also works with one core.

DonLakeFlyer commented 3 years ago

Also this merge conflicts with my other comments and the arch setup script which is incorrect. The only thing that script can do correctly is install speech-dispatcher. So I don't think there is much worth to it.