Add npm package version override capability

crates/eval/src/eval.rs

@@ -413,6 +413,7 @@ pub fn init(cx: &mut App) -> Arc<AgentAppState> {
                     }),
                 )
             }),
+            version_overrides: settings.version_overrides.clone(),
         };
         tx.send(Some(options)).log_err();
     })

crates/node_runtime/Cargo.toml

@@ -22,6 +22,7 @@ async-watch.workspace = true
 async-tar.workspace = true
 async-trait.workspace = true
 async_zip.workspace = true
+collections.workspace = true
 futures.workspace = true
 http_client.workspace = true
 log.workspace = true

crates/node_runtime/src/node_runtime.rs

@@ -4,6 +4,7 @@ use anyhow::{Context, Result, anyhow, bail};
 pub use archive::extract_zip;
 use async_compression::futures::bufread::GzipDecoder;
 use async_tar::Archive;
+use collections::HashMap;
 use futures::AsyncReadExt;
 use http_client::{HttpClient, Url};
 use semver::Version;
@@ -28,6 +29,7 @@ pub struct NodeBinaryOptions {
     pub allow_path_lookup: bool,
     pub allow_binary_download: bool,
     pub use_paths: Option<(PathBuf, PathBuf)>,
+    pub version_overrides: Option<HashMap<String, String>>,
 }
 
 #[derive(Clone)]
@@ -128,7 +130,21 @@ impl NodeRuntime {
     }
 
     pub async fn npm_package_latest_version(&self, name: &str) -> Result<String> {
-        let http = self.0.lock().await.http.clone();
+        let state = self.0.lock().await;
+
+        let version_override = state
+            .options
+            .borrow()
+            .as_ref()
+            .and_then(|options| options.version_overrides.as_ref()?.get(name))
+            .cloned();
+        if let Some(version) = version_override {
+            return Ok(version);
+        }
+
+        let http = state.http.clone();
+        drop(state);
+
         let output = self
             .instance()
             .await?

crates/project/src/project_settings.rs

@@ -105,6 +105,8 @@ pub struct NodeBinarySettings {
     /// If enabled, Zed will download its own copy of Node.
     #[serde(default)]
     pub ignore_system_version: Option<bool>,
+    /// Map of package names to version overrides.
+    pub version_overrides: Option<HashMap<String, String>>,
 }
 
 #[derive(Clone, Debug, Default, Serialize, Deserialize, JsonSchema)]

crates/remote_server/src/unix.rs

@@ -813,6 +813,7 @@ fn initialize_settings(
                     }),
                 )
             }),
+            version_overrides: settings.version_overrides.clone(),
         };
         tx.send(Some(options)).log_err();
     })

crates/zed/src/main.rs

@@ -403,6 +403,7 @@ fn main() {
                         }),
                     )
                 }),
+                version_overrides: settings.version_overrides.clone(),
             };
             tx.send(Some(options)).log_err();
         })