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Add rust-analyzer support for musl linux #40108

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Merged
localcc merged 1 commit into from
Oct 14, 2025
Merged

Add rust-analyzer support for musl linux #40108

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38 changes: 36 additions & 2 deletions crates/languages/src/rust.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -40,7 +40,7 @@ impl RustLspAdapter {
#[cfg(target_os = "linux")]
impl RustLspAdapter {
const GITHUB_ASSET_KIND: AssetKind = AssetKind::Gz;
const ARCH_SERVER_NAME: &str = "unknown-linux-gnu";
const ARCH_SERVER_NAME: &str = "unknown-linux";
}

#[cfg(target_os = "freebsd")]
Expand All @@ -58,18 +58,52 @@ impl RustLspAdapter {
const SERVER_NAME: LanguageServerName = LanguageServerName::new_static("rust-analyzer");

impl RustLspAdapter {
#[cfg(target_os = "linux")]
fn build_arch_server_name_linux() -> String {
enum LibcType {
Gnu,
Musl,
}

let has_musl = std::fs::exists(&format!("/lib/ld-musl-{}.so.1", std::env::consts::ARCH))
.unwrap_or(false);
let has_gnu = std::fs::exists(&format!("/lib/ld-linux-{}.so.1", std::env::consts::ARCH))
.unwrap_or(false);

let libc_type = match (has_musl, has_gnu) {
(true, _) => LibcType::Musl,
(_, true) => LibcType::Gnu,
_ => {
// defaulting to gnu because nix doesn't have either of those files due to not following FHS
LibcType::Gnu
}
};

let libc = match libc_type {
LibcType::Musl => "musl",
LibcType::Gnu => "gnu",
};

format!("{}-{}", Self::ARCH_SERVER_NAME, libc)
}

fn build_asset_name() -> String {
let extension = match Self::GITHUB_ASSET_KIND {
AssetKind::TarGz => "tar.gz",
AssetKind::Gz => "gz",
AssetKind::Zip => "zip",
};

#[cfg(target_os = "linux")]
let arch_server_name = Self::build_arch_server_name_linux();
#[cfg(not(target_os = "linux"))]
let arch_server_name = Self::ARCH_SERVER_NAME.to_string();

format!(
"{}-{}-{}.{}",
SERVER_NAME,
std::env::consts::ARCH,
Self::ARCH_SERVER_NAME,
&arch_server_name,
extension
)
}
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