First attempt at RasPi support

[shawaj]

This is a first draft commit and a work in progress PR.

It cross compiles fine using cross build but I am having some issues with getting cargo-deb to work properly for packaging the deb file. Perhaps might be a better idea to package the .deb file manually like is done with the .ipk

Some other things to note:

• For cargo-deb to work I had to install cmake and gcc-arm-linux-gnueabihf and rustup target add armv7-unknown-linux-gnueabihf
• The ci.yml for github actions is a mess - need to fix

Let me know if you spot any issues or have any suggestions.

[shawaj]

Just for reference, when I run the following:

cargo deb --target=arm-unknown-linux-gnueabihf --variant=raspi01

The error I am getting with cargo deb is as follows:

          /usr/bin/ld: /home/GitHub/gateway-rs/target/arm-unknown-linux-gnueabihf/release/deps/helium_gateway-0a4717c34b6d41e2.helium_gateway.1o693kuq-cgu.0.rcgu.o: relocations in generic ELF (EM: 40)
          /usr/bin/ld: /home/GitHub/gateway-rs/target/arm-unknown-linux-gnueabihf/release/deps/helium_gateway-0a4717c34b6d41e2.helium_gateway.1o693kuq-cgu.0.rcgu.o: error adding symbols: file in wrong format
          collect2: error: ld returned 1 exit status

The same happens with armv7-unknown-linux-gnueabihf as well

Based on these issues - rust-lang/rust#28924 / GuillaumeGomez/sysinfo#246 - I think I might need to define a linker.

[shawaj]

Cargo-deb is basically ignoring the .config/config.toml due to the file extension...

As per the docs here the preferred config is .config/config.toml instead of .config/config but due to the code here:

https://github.com/mmstick/cargo-deb/blob/b5e4f398545a42ecbfdae7175f47c09cde103655/src/config.rs#L38

It is only looking at .config/config

See issue on cargo-deb here mmstick/cargo-deb#157

[shawaj]

@madninja the fix in cargo-deb is in and so in future versions it should be ok with a config.toml.

Are you happy with the config being .config/config without the toml extension for now, until the new cargo-deb package is in the repos? Just want to make sure it doesn't break anything.

[madninja]

@shawaj ok, I think we're ready to look at how this gets merged, if you're still interested?

Does the config vs config.toml work for the non cargo-deb platforms?

[madninja]

Thanks for your efforts here @shawaj! I'm going to close this in favor of: #37 which takes your initial constructs and fits it more into the cargo-make approach while making packaging consistent across ipk/deb targets

[shawaj]

Thanks @madninja

Cc @ryanteck