add Solaris support

[psumbera]

Rustup should be built also for Solaris (after rust-lang/rust#138699).

[rami3l]

@psumbera Thanks for your contribution! Have you (temporarily) removed skip-pr to get a CI run to prove the correctness of this PR though?

[psumbera]

@psumbera Thanks for your contribution! Have you (temporarily) removed skip-pr to get a CI run to prove the correctness of this PR though?

No. To be honest I'm trying to find out how it's working...

So I removed them from ci/actions-templates/linux-builds-template.yaml for now.

[rami3l]

@psumbera As a friendly hint, we often do it like so: do the normal PR first, add a DROP ME commit on top that does the temporary hack, and when the CI turns green, rebase the PR and drop that commit.

[rami3l]

@psumbera Thanks for your contribution! Have you (temporarily) removed skip-pr to get a CI run to prove the correctness of this PR though?

No. To be honest I'm trying to find out how it's working...

So I removed them from ci/actions-templates/linux-builds-template.yaml for now.

@psumbera That's right, but you'll also need to run the shell script to update the GitHub CI YAML to keep them in sync, otherwise the CI will fail anyway.

[rami3l]

Many thanks for this PR, and LGTM (modulo the comments)!

[rami3l]

@psumbera Many thanks again for your contribution!

As a follow-up question, is browser detection on https://dev.rustup.rs working alright on Solaris? (I assume it's working alright on x64, but you are adding support for sparcv9 in this PR as well which seems to be an architecture never supported before by rustup, so I'm a bit concerned.)

For example, for other unices we have:

rustup/www/rustup.js

Lines 36 to 40 in 452c8e5

	if (navigator.platform == "FreeBSD x86_64") {os = "unix";}
	if (navigator.platform == "FreeBSD amd64") {os = "unix";}
	if (navigator.platform == "NetBSD x86_64") {os = "unix";}
	if (navigator.platform == "NetBSD amd64") {os = "unix";}
	if (navigator.platform == "SunOS i86pc") {os = "unix";}

[psumbera]

As a follow-up question, is browser detection on https://dev.rustup.rs working alright on Solaris? (I assume it's working alright on x64, but you are adding support for sparcv9 in this PR as well which seems to be an architecture never supported before by rustup, so I'm a bit concerned.)

So far I wasn't able to test it. curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs still returns the script without my changes.

[rami3l]

So far I wasn't able to test it.

@psumbera Sorry for not being clear enough previously; I meant the Web frontend part of the detection specifically, since we'd normally assume a host platform (anything tier 1, or tier 2 with host tools) can run a browser and the user might want to go to the website for installation instructions.

curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs still returns the script without my changes.

This is expected; merging the PR only gets it into our code base and the actual deployment will happen in the next release. Although I cannot say for sure when that will come, I'd say that we are trying our best to make releases happen more often.

[psumbera]

As a follow-up question, is browser detection on https://dev.rustup.rs working alright on Solaris? (I assume it's working alright on x64, but you are adding support for sparcv9 in this PR as well which seems to be an architecture never supported before by rustup, so I'm a bit concerned.)

See attached screen shot what I get on Solaris SPARC in Firefox 128.9.0. I think it's ok.