Swiftly doesn't reliably install dependencies

[MahdiBM]

For the full discussion, see this thread in Swift Open Source Slack.

Apparently Swiftly did not automatically install libcurl4-openssl-dev on my fresh VPS, which caused build failures when using --static-swift-stdlib.

For the sake of search-ability if someone steps into this issue, here's also part of the error pasted here:

error: link command failed with exit code 1 (use -v to see invocation)
/usr/bin/ld.gold: error: cannot find -lcurl
/root/.local/share/swiftly/toolchains/5.10.1/usr/lib/swift_static/linux/libFoundationNetworking.a(CFURLSessionInterface.c.o):CFURLSessionInterface.c:function CFURLSessionEasyCodeDescription: error: undefined reference to 'curl_easy_strerror'

I know the "find what dependencies to install" logic is not bulletproof and reads from the Dockerfiles, and that Swiftly is waiting on official ways to know what dependencies to install.

I did check the Dockerfiles, all seem to include libcurl4-openssl-dev for Ubuntu 22.04.

[adam-fowler]

Hmmm I really can't see how that happens as it installs what's in the Dockerfiles. But yeah we are waiting on a better method to decide on dependencies, so this probably won't get looked into.

[MahdiBM]

I really can't see how that happens

Me too, but it appears to me that it did happen 😅.

[MahdiBM]

Someone else also reported a not-installed dependency in Vapor's Discord server (zlib).
Here's the last message of the conversation related to this issue. Just leaving it here as proof.

[MahdiBM]

I see there is a test here as well. Not sure what could be going wrong there (though in my limited bash experience, anything can go wrong at all times).

[adam-fowler]

Given the changes in #127 I don't think this is valid anymore.

[MahdiBM]

Hmmm it still relies on the dockerfiles?
Though to be honest I don't think the issue was from parsing dockerfiles or something.

We can close for now.