feat: initial build of github releases support

[rawkode]

This really needs some integration tests, so I'm going to take a look at something @icepuma shared recently:

https://github.com/aelsabbahy/goss

I'm also not super keen on directory: /usr/local/bin being mandatory and I think we can be smarter about this by peeking into ${PATH} for a XDG /bin directory or /usr/local when missing. Curious what BSD users would expect here too, cc @kraileth and @martintc

Though this PR is available for testing

Closes #24

[rawkode]

cc @vielmetti @bketelsen

[codecov-commenter]

Codecov Report

Merging #164 (4dcc241) into main (c4705ca) will decrease coverage by 1.41%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##             main     #164      +/-   ##
==========================================
- Coverage   46.07%   44.66%   -1.42%     
==========================================
  Files          69       70       +1     
  Lines        2179     2248      +69     
==========================================
  Hits         1004     1004              
- Misses       1175     1244      +69     

Impacted Files	Coverage Δ
lib/src/actions/binary/github.rs	0.00% <0.00%> (ø)
lib/src/actions/mod.rs	20.28% <0.00%> (-0.61%)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update c4705ca...4dcc241. Read the comment docs.

[icepuma]

Maybe a mode should be chosen which restricts it to the owner, who runs comtrya.

[icepuma]

One comment and some clippy warnings.

[martintc]

BSD users have a tendency to be a little more strict to sticking to the prescribed hierarchy of files. Best way to get a feel for it is to read the man pages for hier. On NetBSD, I don't think I've ever set up a /usr/local/bin folder. Usually packages added to a NetBSD system using pkgin or pkgsrc, all packages install to /usr/pkg/bin. However this is more specific for how NetBSD feels is best to organize files. I don't run FreeBSD often, @kraileth is more the expert on how things happen on FreeBSD, but if I recall, FreeBSD leans more on using /usr/local. The BSDs also have a different notion as to the purpose of /usr in general. It is seem more as a place where stuff goes isn't part of the base system. Linux has a different model for what /usr is.

[rawkode]

@icepuma @martintc Ready for review

[martintc]

Looks good on my end. I do have one comment regarding checking os_info::Bitness. It is reasonable to assume that any machine that doesn't return Bitness:X32 would be 64-bit. But there are some linux distros that os_info will report back wrongly and we can get a different Bitness or just Bitness::Unknown. I doubt we will be getting a Bitness::Unknown from someone running comtrya on their hacked commodore running linux.

If you think adding a branch for this is unnecessary, your good to merge on my end.

[icepuma]

I'll add my review later

[icepuma]

Totally optional for this PR

Should we add a checksum check?

actions:
  - action: binary.github
    name: comtrya
    directory: /tmp
    repository: comtrya/comtrya
    checksum_file: comtrya.sha512

This would be optional. If checksum_file is present, we try to download the checksum_file. If the file is present we have to create the checksum of the binary and check it against the content of the checksum_file.

As we autodetect the architecture, the filename might not work and we should add the expected checksum.