docs: Solidity compilers are not downloaded to `~/.svm` on macOS

[macaujack]

Component

Forge

Have you ensured that all of these are up to date?

• Foundry
• Foundryup

What version of Foundry are you on?

forge 0.2.0 (6fc7463 2024-01-05T00:17:41.668342000Z)

What command(s) is the bug in?

No response

Operating System

macOS (Apple Silicon)

Describe the bug

The README says:

Automatic Solidity compiler version detection & installation (under ~/.svm)

However, on my machine (macOS Apple silicon, system version 14.1), the compilers are downloaded to /Users/yourUsername/Library/Application Support/svm. Seems like a mistake in README.

[DaniPopes]

The directory is resolved here: https://github.com/alloy-rs/svm-rs/blob/8423030a242915ec8629e6f1be1cd2f5a876ec70/crates/svm-rs/src/lib.rs#L51

which was updated in alloy-rs/svm-rs#87

I think we just have to update the docs

cc @mattsse

[piavgh]

@DaniPopes : so if I don't have .svm folder in my $HOME, where does it install? (I tried which solc and it returns ~/.cargo/bin/solc, but I don't think Forge uses that location)

[piavgh]

I can reproduce the issue now, the reason is if I don't specify solc = "0.8.25" in foundry.toml file, it will try to install solc v0.8.25 again (even if it's already installed by svm-rs and is set as the global)

If I specify solc = "0.8.25" in foundry.toml, it works properly

[CadeMichael]

if everything is installed to '/Users/username/Library/Application Support/svm' if you want to uninstall a certain compiler version do you just have to remove it from that dir? (On macOS)