biomejs · arendjr · Aug 5, 2025 · Aug 4, 2025 · Aug 5, 2025
diff --git a/.changeset/skating-scanner-skips.md b/.changeset/skating-scanner-skips.md
@@ -0,0 +1,5 @@
+---
+"@biomejs/biome": patch
+---
+
+Fixed [#7062](https://github.com/biomejs/biome/issues/7062): Biome now correctly considers extended configs when determining the mode for the scanner.
diff --git a/crates/biome_cli/src/commands/mod.rs b/crates/biome_cli/src/commands/mod.rs
@@ -31,7 +31,9 @@ use biome_diagnostics::{Diagnostic, PrintDiagnostic, Severity};
 use biome_fs::{BiomePath, FileSystem};
 use biome_grit_patterns::GritTargetLanguage;
 use biome_resolver::FsWithResolverProxy;
-use biome_service::configuration::{LoadedConfiguration, load_configuration, load_editorconfig};
+use biome_service::configuration::{
+    LoadedConfiguration, ProjectScanComputer, load_configuration, load_editorconfig,
+};
 use biome_service::documentation::Doc;
 use biome_service::projects::ProjectKey;
 use biome_service::workspace::{
@@ -921,27 +923,20 @@ pub(crate) trait CommandRunner: Sized {
         let paths = self.get_files_to_process(fs, &configuration)?;
         let paths = validated_paths_for_execution(paths, &execution, &working_dir)?;
 
-        let params = if let TraversalMode::Lint { only, skip, .. } = execution.traversal_mode() {
-            OpenProjectParams {
-                path: BiomePath::new(project_dir),
-                open_uninitialized: true,
-                only_rules: Some(only.clone()),
-                skip_rules: Some(skip.clone()),
-            }
-        } else {
-            OpenProjectParams {
-                path: BiomePath::new(project_dir),
-                open_uninitialized: true,
-                only_rules: None,
-                skip_rules: None,
-            }
-        };
-
         // Open the project
-        let open_project_result = workspace.open_project(params)?;
+        let open_project_result = workspace.open_project(OpenProjectParams {
+            path: BiomePath::new(project_dir),
+            open_uninitialized: true,
+        })?;
 
+        let scan_kind_computer =
+            if let TraversalMode::Lint { only, skip, .. } = execution.traversal_mode() {
+                ProjectScanComputer::new(&configuration).with_rule_selectors(skip, only)
+            } else {
+                ProjectScanComputer::new(&configuration)
+            };
         let scan_kind = derive_best_scan_kind(
-            open_project_result.scan_kind,
+            scan_kind_computer.compute(),
             &execution,
             &root_configuration_dir,
             &working_dir,

diff --git a/crates/biome_cli/tests/commands/lint.rs b/crates/biome_cli/tests/commands/lint.rs
@@ -4079,6 +4079,64 @@ bar();"#
     ));
 }
 
+#[test]
+fn linter_enables_project_domain_based_on_extended_config() {
+    let mut console = BufferConsole::default();
+    let fs = MemoryFileSystem::default();
+
+    fs.insert(
+        Utf8Path::new("biome.json").into(),
+        r#"{ "extends": ["biome.base.json"] }"#.as_bytes(),
+    );
+
+    fs.insert(
+        Utf8Path::new("biome.base.json").into(),
+        r#"{
+    "linter": {
+        "rules": {
+            "nursery": {
+                "noFloatingPromises": "on"
+            }
+        }
+    }
+}"#
+        .as_bytes(),
+    );
+
+    let file = Utf8Path::new("src/foo.ts");
+    fs.insert(
+        file.into(),
+        r#"export function foo(): Foo {}
+
+export async function bar() {}"#
+            .as_bytes(),
+    );
+
+    let file = Utf8Path::new("src/index.ts");
+    fs.insert(
+        file.into(),
+        r#"import { foo, bar } from "./foo.ts";
+
+fn(foo());
+
+bar();"#
+            .as_bytes(),
+    );
+
+    let (fs, result) = run_cli_with_server_workspace(
+        fs,
+        &mut console,
+        Args::from(["lint", file.as_str()].as_slice()),
+    );
+    assert_cli_snapshot(SnapshotPayload::new(
+        module_path!(),
+        "linter_enables_project_domain_based_on_extended_config",
+        fs,
+        console,
+        result,
+    ));
+}
+
 #[test]
 fn should_apply_root_settings_with_stdin_file_path() {
     let mut fs = TemporaryFs::new("should_apply_root_settings_with_stdin_file_path");

diff --git a/.../snapshots/main_commands_lint/linter_enables_project_domain_based_on_extended_config.snap b/.../snapshots/main_commands_lint/linter_enables_project_domain_based_on_extended_config.snap
@@ -0,0 +1,62 @@
+---
+source: crates/biome_cli/tests/snap_test.rs
+expression: redactor(content)
+---
+## `biome.json`
+
+```json
+{ "extends": ["biome.base.json"] }
+```
+
+## `biome.base.json`
+
+```json
+{
+    "linter": {
+        "rules": {
+            "nursery": {
+                "noFloatingPromises": "on"
+            }
+        }
+    }
+}
+```
+
+## `src/foo.ts`
+
+```ts
+export function foo(): Foo {}
+
+export async function bar() {}
+```
+
+## `src/index.ts`
+
+```ts
+import { foo, bar } from "./foo.ts";
+
+fn(foo());
+
+bar();
+```
+
+# Emitted Messages
+
+```block
+src/index.ts:5:1 lint/nursery/noFloatingPromises ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+
+  i A "floating" Promise was found, meaning it is not properly handled and could lead to ignored errors or unexpected behavior.
+
+    3 │ fn(foo());
+    4 │ 
+  > 5 │ bar();
+      │ ^^^^^^
+
+  i This happens when a Promise is not awaited, lacks a `.catch` or `.then` rejection handler, or is not explicitly ignored using the `void` operator.
+
+
+```
+
+```block
+Checked 1 file in <TIME>. No fixes applied.
+```
diff --git a/crates/biome_formatter_test/src/spec.rs b/crates/biome_formatter_test/src/spec.rs
@@ -50,13 +50,11 @@ impl<'a> SpecTestFile<'a> {
             "The input '{spec_input_file}' must exist and be a file.",
         );
 
-        let OpenProjectResult { project_key, .. } = app
+        let OpenProjectResult { project_key } = app
             .workspace
             .open_project(OpenProjectParams {
                 path: BiomePath::new(""),
                 open_uninitialized: true,
-                only_rules: None,
-                skip_rules: None,
             })
             .unwrap();
 

diff --git a/crates/biome_lsp/src/handlers/text_document.rs b/crates/biome_lsp/src/handlers/text_document.rs
@@ -3,11 +3,10 @@ use std::sync::Arc;
 use crate::diagnostics::LspError;
 use crate::utils::apply_document_changes;
 use crate::{documents::Document, session::Session};
-use biome_fs::BiomePath;
+use biome_configuration::ConfigurationPathHint;
 use biome_service::workspace::{
     ChangeFileParams, CloseFileParams, DocumentFileSource, FeaturesBuilder, FileContent,
-    GetFileContentParams, IgnoreKind, IsPathIgnoredParams, OpenFileParams, OpenProjectParams,
-    ScanKind,
+    GetFileContentParams, IgnoreKind, IsPathIgnoredParams, OpenFileParams,
 };
 use tower_lsp_server::lsp_types;
 use tracing::{debug, error, field, info};
@@ -35,26 +34,28 @@ pub(crate) async fn did_open(
         Some(project_key) => project_key,
         None => {
             info!("No open project for path: {path:?}. Opening new project.");
-            let parent_path = BiomePath::new(
-                path.parent()
-                    .map(|parent| parent.to_path_buf())
-                    .unwrap_or_default(),
-            );
-            let result = session.workspace.open_project(OpenProjectParams {
-                path: parent_path.clone(),
-                open_uninitialized: true,
-                skip_rules: None,
-                only_rules: None,
-            })?;
-            let scan_kind = if result.scan_kind.is_none() {
-                ScanKind::KnownFiles
-            } else {
-                result.scan_kind
-            };
-            session
-                .insert_and_scan_project(result.project_key, parent_path, scan_kind)
+            let parent_path = path
+                .parent()
+                .map(|parent| parent.to_path_buf())
+                .unwrap_or_default();
+            let status = session
+                .load_biome_configuration_file(ConfigurationPathHint::FromLsp(parent_path))
                 .await;
-            result.project_key
+            debug!("Configuration status: {status:?}");
+            session.set_configuration_status(status);
+
+            if status.is_loaded() {
+                match session.project_for_path(&path) {
+                    Some(project_key) => project_key,
+                    None => {
+                        error!("Could not find project for {path}");
+                        return Ok(());
+                    }
+                }
+            } else {
+                error!("Configuration could not be loaded for {path}");
+                return Ok(());
+            }
         }
     };
 

diff --git a/crates/biome_lsp/src/server.rs b/crates/biome_lsp/src/server.rs
@@ -6,13 +6,13 @@ use crate::session::{
 };
 use crate::utils::{into_lsp_error, panic_to_lsp_error};
 use crate::{handlers, requests};
+use biome_configuration::ConfigurationPathHint;
 use biome_console::markup;
 use biome_diagnostics::panic::PanicError;
 use biome_fs::{ConfigName, MemoryFileSystem, OsFileSystem};
 use biome_resolver::FsWithResolverProxy;
 use biome_service::workspace::{
-    CloseProjectParams, OpenProjectParams, RageEntry, RageParams, RageResult, ScanKind,
-    ServiceDataNotification,
+    CloseProjectParams, RageEntry, RageParams, RageResult, ServiceDataNotification,
 };
 use biome_service::{WatcherInstruction, WorkspaceServer};
 use crossbeam::channel::{Sender, bounded};
@@ -412,39 +412,14 @@ impl LanguageServer for LSPServer {
 
         for added in &params.event.added {
             if let Ok(project_path) = self.session.file_path(&added.uri) {
-                let result = self
+                let status = self
                     .session
-                    .workspace
-                    .open_project(OpenProjectParams {
-                        path: project_path.clone(),
-                        open_uninitialized: true,
-                        only_rules: None,
-                        skip_rules: None,
-                    })
-                    .map_err(LspError::from);
-
-                match result {
-                    Ok(result) => {
-                        let scan_kind = if result.scan_kind.is_none() {
-                            ScanKind::KnownFiles
-                        } else {
-                            result.scan_kind
-                        };
-                        self.session
-                            .insert_and_scan_project(
-                                result.project_key,
-                                project_path.clone(),
-                                scan_kind,
-                            )
-                            .await;
-
-                        self.session.update_all_diagnostics().await;
-                    }
-                    Err(err) => {
-                        error!("Failed to add project to the workspace: {err}");
-                        self.notify_error(err).await;
-                    }
-                }
+                    .load_biome_configuration_file(ConfigurationPathHint::FromWorkspace(
+                        project_path.to_path_buf(),
+                    ))
+                    .await;
+                debug!("Configuration status: {status:?}");
+                self.session.set_configuration_status(status);
             }
         }
     }