asepharyana
7b0b53671f
Menyeragamkan format kode sesuai rustfmt (126 file). Sebelumnya lefthook pre-commit 'cargo fmt --check' akan gagal pada commit apa pun.
55 lines
1.6 KiB
Rust
55 lines
1.6 KiB
Rust
//! Discovers installed language servers on the system PATH.
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use std::collections::HashMap;
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use super::config::LspProvisionerConfig;
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/// Known language server configurations keyed by language.
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fn known_configs() -> HashMap<&'static str, (&'static str, Vec<&'static str>)> {
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let mut m = HashMap::new();
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m.insert("rust", ("rust-analyzer", vec![]));
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m.insert("python", ("pyright-langserver", vec!["--stdio"]));
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m.insert(
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"typescript",
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("typescript-language-server", vec!["--stdio"]),
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);
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m.insert(
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"javascript",
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("typescript-language-server", vec!["--stdio"]),
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);
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m.insert("go", ("gopls", vec![]));
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m
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}
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/// Check if a command is available on PATH.
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fn command_exists(cmd: &str) -> bool {
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std::env::var_os("PATH")
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.and_then(|path| {
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std::env::split_paths(&path).find_map(|dir| {
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let full_path = dir.join(cmd);
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if full_path.is_file() {
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Some(())
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} else {
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None
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}
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})
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})
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.is_some()
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}
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/// Discover which language servers are already on PATH.
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pub fn discover_installed() -> Vec<LspProvisionerConfig> {
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let mut configs = Vec::new();
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for (lang, (cmd, args)) in known_configs() {
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if command_exists(cmd) {
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configs.push(LspProvisionerConfig {
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language: lang.to_string(),
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command: cmd.to_string(),
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args: args.iter().map(|s| s.to_string()).collect(),
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install_hint: None,
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});
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}
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}
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configs
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}
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