fix(vite_global_cli): invalidate resolve cache after version configuration changes

crates/vite_global_cli/src/commands/env/default.rs

@@ -87,6 +87,9 @@ async fn set_default(version: &str) -> Result<ExitStatus, Error> {
     config.default_node_version = Some(store_version);
     save_config(&config).await?;
 
+    // Invalidate resolve cache so the new default takes effect immediately
+    crate::shim::invalidate_cache();
+
     println!("\u{2713} Default Node.js version set to {display_version}");
 
     Ok(ExitStatus::default())

crates/vite_global_cli/src/commands/env/pin.rs

@@ -130,6 +130,9 @@ async fn do_pin(
     // Write the version to .node-version
     tokio::fs::write(&node_version_path, format!("{resolved_version}\n")).await?;
 
+    // Invalidate resolve cache so the pinned version takes effect immediately
+    crate::shim::invalidate_cache();
+
     // Print success message
     if was_alias {
         output::success(&format!(
@@ -206,13 +209,18 @@ pub async fn do_unpin(cwd: &AbsolutePathBuf) -> Result<ExitStatus, Error> {
     }
 
     tokio::fs::remove_file(&node_version_path).await?;
+
+    // Invalidate resolve cache so the unpinned version falls back correctly
+    crate::shim::invalidate_cache();
+
     output::success(&format!("Removed {} from {}", NODE_VERSION_FILE, cwd.as_path().display()));
 
     Ok(ExitStatus::default())
 }
 
 #[cfg(test)]
 mod tests {
+    use serial_test::serial;
     use tempfile::TempDir;
     use vite_path::AbsolutePathBuf;
 
@@ -275,6 +283,90 @@ mod tests {
         assert!(!tokio::fs::try_exists(&node_version_path).await.unwrap());
     }
 
+    #[tokio::test]
+    // Run serially: mutates VITE_PLUS_HOME env var which affects invalidate_cache()
+    #[serial]
+    async fn test_do_unpin_invalidates_cache() {
+        let temp_dir = TempDir::new().unwrap();
+        let temp_path = AbsolutePathBuf::new(temp_dir.path().to_path_buf()).unwrap();
+
+        // Point VITE_PLUS_HOME to temp dir
+        unsafe {
+            std::env::set_var(vite_shared::env_vars::VITE_PLUS_HOME, temp_path.as_path());
+        }
+
+        // Create cache file manually
+        let cache_dir = temp_path.join("cache");
+        std::fs::create_dir_all(&cache_dir).unwrap();
+        let cache_file = cache_dir.join("resolve_cache.json");
+        std::fs::write(&cache_file, r#"{"version":2,"entries":{}}"#).unwrap();
+        assert!(
+            std::fs::metadata(cache_file.as_path()).is_ok(),
+            "Cache file should exist before unpin"
+        );
+
+        // Create .node-version and unpin
+        let node_version_path = temp_path.join(".node-version");
+        tokio::fs::write(&node_version_path, "20.18.0\n").await.unwrap();
+        let result = do_unpin(&temp_path).await;
+        assert!(result.is_ok());
+
+        // Cache file should be removed by invalidate_cache()
+        assert!(
+            std::fs::metadata(cache_file.as_path()).is_err(),
+            "Cache file should be removed after unpin"
+        );
+
+        // Cleanup
+        unsafe {
+            std::env::remove_var(vite_shared::env_vars::VITE_PLUS_HOME);
+        }
+    }
+
+    // Run serially: mutates VITE_PLUS_HOME env var which affects invalidate_cache()
+    #[tokio::test]
+    #[serial]
+    async fn test_do_pin_invalidates_cache() {
+        let temp_dir = TempDir::new().unwrap();
+        let temp_path = AbsolutePathBuf::new(temp_dir.path().to_path_buf()).unwrap();
+
+        // Point VITE_PLUS_HOME to temp dir
+        unsafe {
+            std::env::set_var(vite_shared::env_vars::VITE_PLUS_HOME, temp_path.as_path());
+        }
+
+        // Create cache file manually
+        let cache_dir = temp_path.join("cache");
+        std::fs::create_dir_all(&cache_dir).unwrap();
+        let cache_file = cache_dir.join("resolve_cache.json");
+        std::fs::write(&cache_file, r#"{"version":2,"entries":{}}"#).unwrap();
+        assert!(
+            std::fs::metadata(cache_file.as_path()).is_ok(),
+            "Cache file should exist before pin"
+        );
+
+        // Pin an exact version (no_install=true to skip download, force=true to skip prompt)
+        let result = do_pin(&temp_path, "20.18.0", true, true).await;
+        assert!(result.is_ok());
+
+        // .node-version should be created
+        let node_version_path = temp_path.join(".node-version");
+        assert!(tokio::fs::try_exists(&node_version_path).await.unwrap());
+        let content = tokio::fs::read_to_string(&node_version_path).await.unwrap();
+        assert_eq!(content.trim(), "20.18.0");
+
+        // Cache file should be removed by invalidate_cache()
+        assert!(
+            std::fs::metadata(cache_file.as_path()).is_err(),
+            "Cache file should be removed after pin"
+        );
+
+        // Cleanup
+        unsafe {
+            std::env::remove_var(vite_shared::env_vars::VITE_PLUS_HOME);
+        }
+    }
+
     #[tokio::test]
     async fn test_do_unpin_no_file() {
         let temp_dir = TempDir::new().unwrap();

crates/vite_global_cli/src/shim/cache.rs

@@ -188,6 +188,14 @@ pub fn get_cache_path() -> Option<AbsolutePathBuf> {
     Some(home.join("cache").join("resolve_cache.json"))
 }
 
+/// Invalidate the entire resolve cache by deleting the cache file.
+/// Called after version configuration changes (e.g., `vp env default`, `vp env pin`, `vp env unpin`).
+pub fn invalidate_cache() {
+    if let Some(cache_path) = get_cache_path() {
+        std::fs::remove_file(cache_path.as_path()).ok();
+    }
+}
+
 /// Get the mtime of a file as Unix timestamp.
 pub fn get_file_mtime(path: &AbsolutePath) -> Option<u64> {
     let metadata = std::fs::metadata(path).ok()?;
@@ -335,4 +343,53 @@ mod tests {
         assert!(cached_entry.is_some(), "Range version cache should be valid within TTL");
         assert_eq!(cached_entry.unwrap().version, "20.20.0");
     }
+
+    // Run serially: mutates VITE_PLUS_HOME env var which affects get_cache_path()
+    #[test]
+    #[serial_test::serial]
+    fn test_invalidate_cache_removes_file() {
+        let temp_dir = TempDir::new().unwrap();
+        let temp_path = AbsolutePathBuf::new(temp_dir.path().to_path_buf()).unwrap();
+
+        // Set VITE_PLUS_HOME to temp dir so invalidate_cache() targets our test file
+        let cache_dir = temp_path.join("cache");
+        std::fs::create_dir_all(&cache_dir).unwrap();
+        let cache_file = cache_dir.join("resolve_cache.json");
+
+        // Create a cache with an entry and save it
+        let mut cache = ResolveCache::default();
+        cache.insert(
+            &temp_path,
+            ResolveCacheEntry {
+                version: "20.18.0".to_string(),
+                source: ".node-version".to_string(),
+                project_root: None,
+                resolved_at: now_timestamp(),
+                version_file_mtime: 0,
+                source_path: None,
+                is_range: false,
+            },
+        );
+        cache.save(&cache_file);
+        assert!(std::fs::metadata(cache_file.as_path()).is_ok(), "Cache file should exist");
+
+        // Point VITE_PLUS_HOME to our temp dir and call invalidate_cache
+        unsafe {
+            std::env::set_var(vite_shared::env_vars::VITE_PLUS_HOME, temp_path.as_path());
+        }
+        invalidate_cache();
+        unsafe {
+            std::env::remove_var(vite_shared::env_vars::VITE_PLUS_HOME);
+        }
+
+        // Cache file should be removed
+        assert!(
+            std::fs::metadata(cache_file.as_path()).is_err(),
+            "Cache file should be removed after invalidation"
+        );
+
+        // Loading from removed file should return empty default cache
+        let loaded_cache = ResolveCache::load(&cache_file);
+        assert!(loaded_cache.get(&temp_path).is_none(), "Cache should be empty after invalidation");
+    }
 }

crates/vite_global_cli/src/shim/mod.rs

@@ -12,6 +12,7 @@ mod cache;
 pub(crate) mod dispatch;
 pub(crate) mod exec;
 
+pub(crate) use cache::invalidate_cache;
 pub use dispatch::dispatch;
 use vite_shared::env_vars;