languages: Allow installing pre-release of rust-analyzer and clangd (#37530)

Release Notes:

- Added lsp binary config to allow fetching nightly rust-analyzer and
clangd releases

crates/languages/src/c.rs

@@ -5,8 +5,9 @@ use gpui::{App, AsyncApp};
 use http_client::github::{AssetKind, GitHubLspBinaryVersion, latest_github_release};
 pub use language::*;
 use lsp::{InitializeParams, LanguageServerBinary, LanguageServerName};
-use project::lsp_store::clangd_ext;
+use project::{lsp_store::clangd_ext, project_settings::ProjectSettings};
 use serde_json::json;
+use settings::Settings as _;
 use smol::fs;
 use std::{any::Any, env::consts, path::PathBuf, sync::Arc};
 use util::{ResultExt, fs::remove_matching, maybe, merge_json_value_into};
@@ -42,9 +43,19 @@ impl super::LspAdapter for CLspAdapter {
     async fn fetch_latest_server_version(
         &self,
         delegate: &dyn LspAdapterDelegate,
+        cx: &AsyncApp,
     ) -> Result<Box<dyn 'static + Send + Any>> {
-        let release =
-            latest_github_release("clangd/clangd", true, false, delegate.http_client()).await?;
+        let release = latest_github_release(
+            "clangd/clangd",
+            true,
+            ProjectSettings::try_read_global(cx, |s| {
+                s.lsp.get(&Self::SERVER_NAME)?.fetch.as_ref()?.pre_release
+            })
+            .flatten()
+            .unwrap_or(false),
+            delegate.http_client(),
+        )
+        .await?;
         let os_suffix = match consts::OS {
             "macos" => "mac",
             "linux" => "linux",

crates/languages/src/css.rs

@@ -61,6 +61,7 @@ impl LspAdapter for CssLspAdapter {
     async fn fetch_latest_server_version(
         &self,
         _: &dyn LspAdapterDelegate,
+        _: &AsyncApp,
     ) -> Result<Box<dyn 'static + Any + Send>> {
         Ok(Box::new(
             self.node

crates/languages/src/go.rs

@@ -59,6 +59,7 @@ impl super::LspAdapter for GoLspAdapter {
     async fn fetch_latest_server_version(
         &self,
         delegate: &dyn LspAdapterDelegate,
+        _: &AsyncApp,
     ) -> Result<Box<dyn 'static + Send + Any>> {
         let release =
             latest_github_release("golang/tools", false, false, delegate.http_client()).await?;

crates/languages/src/json.rs

@@ -321,6 +321,7 @@ impl LspAdapter for JsonLspAdapter {
     async fn fetch_latest_server_version(
         &self,
         _: &dyn LspAdapterDelegate,
+        _: &AsyncApp,
     ) -> Result<Box<dyn 'static + Send + Any>> {
         Ok(Box::new(
             self.node
@@ -494,6 +495,7 @@ impl LspAdapter for NodeVersionAdapter {
     async fn fetch_latest_server_version(
         &self,
         delegate: &dyn LspAdapterDelegate,
+        _: &AsyncApp,
     ) -> Result<Box<dyn 'static + Send + Any>> {
         let release = latest_github_release(
             "zed-industries/package-version-server",

crates/languages/src/python.rs

@@ -157,6 +157,7 @@ impl LspAdapter for PythonLspAdapter {
     async fn fetch_latest_server_version(
         &self,
         _: &dyn LspAdapterDelegate,
+        _: &AsyncApp,
     ) -> Result<Box<dyn 'static + Any + Send>> {
         Ok(Box::new(
             self.node
@@ -1111,6 +1112,7 @@ impl LspAdapter for PyLspAdapter {
     async fn fetch_latest_server_version(
         &self,
         _: &dyn LspAdapterDelegate,
+        _: &AsyncApp,
     ) -> Result<Box<dyn 'static + Any + Send>> {
         Ok(Box::new(()) as Box<_>)
     }
@@ -1422,6 +1424,7 @@ impl LspAdapter for BasedPyrightLspAdapter {
     async fn fetch_latest_server_version(
         &self,
         _: &dyn LspAdapterDelegate,
+        _: &AsyncApp,
     ) -> Result<Box<dyn 'static + Any + Send>> {
         Ok(Box::new(()) as Box<_>)
     }

crates/languages/src/rust.rs

@@ -147,11 +147,16 @@ impl LspAdapter for RustLspAdapter {
     async fn fetch_latest_server_version(
         &self,
         delegate: &dyn LspAdapterDelegate,
+        cx: &AsyncApp,
     ) -> Result<Box<dyn 'static + Send + Any>> {
         let release = latest_github_release(
             "rust-lang/rust-analyzer",
             true,
-            false,
+            ProjectSettings::try_read_global(cx, |s| {
+                s.lsp.get(&SERVER_NAME)?.fetch.as_ref()?.pre_release
+            })
+            .flatten()
+            .unwrap_or(false),
             delegate.http_client(),
         )
         .await?;

crates/languages/src/tailwind.rs

@@ -66,6 +66,7 @@ impl LspAdapter for TailwindLspAdapter {
     async fn fetch_latest_server_version(
         &self,
         _: &dyn LspAdapterDelegate,
+        _: &AsyncApp,
     ) -> Result<Box<dyn 'static + Any + Send>> {
         Ok(Box::new(
             self.node

crates/languages/src/typescript.rs

@@ -563,6 +563,7 @@ impl LspAdapter for TypeScriptLspAdapter {
     async fn fetch_latest_server_version(
         &self,
         _: &dyn LspAdapterDelegate,
+        _: &AsyncApp,
     ) -> Result<Box<dyn 'static + Send + Any>> {
         Ok(Box::new(TypeScriptVersions {
             typescript_version: self.node.npm_package_latest_version("typescript").await?,
@@ -885,6 +886,7 @@ impl LspAdapter for EsLintLspAdapter {
     async fn fetch_latest_server_version(
         &self,
         _delegate: &dyn LspAdapterDelegate,
+        _: &AsyncApp,
     ) -> Result<Box<dyn 'static + Send + Any>> {
         let url = build_asset_url(
             "zed-industries/vscode-eslint",

crates/languages/src/vtsls.rs

@@ -73,6 +73,7 @@ impl LspAdapter for VtslsLspAdapter {
     async fn fetch_latest_server_version(
         &self,
         _: &dyn LspAdapterDelegate,
+        _: &AsyncApp,
     ) -> Result<Box<dyn 'static + Send + Any>> {
         Ok(Box::new(TypeScriptVersions {
             typescript_version: self.node.npm_package_latest_version("typescript").await?,

crates/languages/src/yaml.rs

@@ -44,6 +44,7 @@ impl LspAdapter for YamlLspAdapter {
     async fn fetch_latest_server_version(
         &self,
         _: &dyn LspAdapterDelegate,
+        _: &AsyncApp,
     ) -> Result<Box<dyn 'static + Any + Send>> {
         Ok(Box::new(
             self.node